Final RFP~1.pdf

PDF 8 MB Posted Jul 8, 2026

Attached to: Bidders to install an LNG trim heater and generator at our LNG facility.
Solicitation number: BD-27-1296-02346-MGED1-131178
Issued by: Plymouth County, Massachusetts

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Written by GovTribe AI · Jul 10, 2026

Trim Heater Replacement Project – Scope of Work Summary

This is a Scope of Work document for the Middleborough Gas & Electric Department (MGED), prepared by Cornerstone Energy Services Inc., for a natural gas trim heater and standby generator replacement project at MGED's LNG peak shaving facility located at 2 Vine Street, Middleborough, Massachusetts. The project requires qualified bidders to furnish, fabricate, and install an electric trim heater (Gaumer Process model ICCS6F9N160M4EDK, 90 kW nominal power with 4-inch inlet/outlet size), an emergency generator (Kohler, already in possession), an automatic transfer switch, and all associated stainless steel piping and electrical infrastructure. Work is scheduled to commence in summer 2026 with commissioning and testing completed no later than October 1, 2026. Sealed bids are due August 6, 2026, at 1:00 PM, with a board award vote scheduled for August 12, 2026. Questions may be submitted through July 30, 2026. The contractor shall submit a detailed milestone schedule, resumes of key staff, identification of proposed subcontractors, and documentation of similar project experience.

The scope encompasses civil and structural work including foundations and anchoring for the trim heater, generator, and electrical rack using hydrovac excavation methods; mechanical and piping work including fabrication, installation, testing, and coating of all piping systems in accordance with drawings; electrical and instrumentation installation including conduit routing, cable termination, and system commissioning; and final purging, tie-in, and commissioning activities under MGED supervision. The contractor is responsible for all materials, equipment, tools, consumables, and temporary facilities including mobilization and demobilization costs. MGED supplies the electric trim heater, control panel, emergency generator, automatic transfer switch, and fuel gas service to the generator. Material deliveries are projected for July 31, 2026. Contractor costs shall adhere to prevailing wage schedules, and all work must comply with applicable codes including 49 CFR Part 193, NFPA 59A (2001), NFPA 54 (2021), and NFPA 70 (2023). The contractor is required to employ a part-time Safety Specialist, conduct weekly and daily safety meetings, perform 100% nondestructive examination of welds using a Certified Welding Inspector, assume one full week of commissioning activities (40 hours), and participate in six weeks of weekly status conferences.

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Prepared by Cornerstone Energy Services Inc. 38 Resnik Road, Suite 101, Plymouth, MA 02360 v

PROJECT: MGED TRIM HEATER REPLACEMENT

DOCUMENT: ENG-DOC-003 – SCOPE OF WORK

Rev. Date By Change

A 4/28/26 LRD Issued for Bid

B 5/27/26 LRD Minor Updates

C 6/10/26 TDS Minor Updates

D 7/08/26 MGED Minor Updates

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360

1.0 GENERAL

1.1 OVERVIEW

1.2 DELIVERABLES WITH PROPOSAL

1.3 COMMUNICATION

1.4 STANDARDS AND SPECIFICATIONS

1.5 SCHEDULE

1.6 MOBILIZATION AND DEMOBILIZATION

1.7 ENVIRONMENTAL / RIGHT OF WAY

1.8 HEALTH AND SAFETY

1.9 MATERIALS AND LOGISTICS

1.10 FINAL CLEAN-UP AND RESTORATION

2.0 SCOPE OF WORK

2.1 SUPPLY OF MATERIALS AND EQUIPMENT

2.2 CIVIL & STRUCTURAL

2.3 MECHANICAL AND PIPING

2.4 ELECTRICAL AND INSTRUMENTATION

2.5 COMMISSIONING

2.6 ASSUMPTIONS

Contractor Scope of Work Page: 1 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date:7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360

1.0 GENERAL

1.1 OVERVIEW

1.1.1 Middleborough Gas and Electric Department (MGED) is seeking qualified bidders to furnish, fabricate, and install a natural gas trim heater and associated standby generator at their LNG peak shaving facility.

1.1.2 The LNG facility is located at 2 Vine St, Middleborough, MA.

1.1.3 The work shall commence in Summer of 2026 with commissioning and testing completed no later than October 1, 2026.

1.1.4 MGED has contracted Cornerstone Energy Services, Inc. (“Cornerstone”), to provide Engineering and Procurement services for this project.

1.1.5 Bidding and the award of a contract shall be conducted in full compliance with Chapter 30, Section 39M, of the Massachusetts General Laws, inclusive as last revised, with such award made to the lowest responsible and eligible bidder.

1.2 DELIVERABLES WITH PROPOSAL

1.2.1 Each bidder shall furnish the documents outlined below with the proposal in a sealed package.

• Proposed pricing divided into proposed Milestone payments (if applicable)

• Proposed detailed schedule including start date and completion date

• Resumes of key staff.

• Identification of proposed subcontractors

• Requested changes to the standard construction contract provided with this RFP

• Exceptions

• Selected project experience similar in nature to this Scope of Work.

1.3 COMMUNICATION

1.3.1 All communications shall be sent to MGED and Cornerstone. Cornerstone will coordinate with MGED to review and respond as needed. These shall include, but not be limited to, the following –

• Requests for information

• Change orders

• Schedules & Progress

• Submittals

• Turnover items

• Punchlist and project closeout

Page: 2 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date:7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360

1.4 STANDARDS AND SPECIFICATIONS

1.4.1 49 CFR Part 193

1.4.2 NFPA 59A, 2001 Edition

1.4.3 NFPA 54 with amendments per 248 CMR 5.00, 2021 Edition

1.4.4 NFPA 70 with amendments per 527 CMR 12.00, 2023 Edition

1.5 SCHEDULE

Sealed bids shall be submitted to the Middleborough Gas & Electric Department 32 So. Main Street, Middleborough, Massachusetts 02346, Attn: Ken Stone, no later than 1 PM, Thursday August 6, 2026. Bids will be publicly opened and read aloud.

• Bid due date – 08/06/26 at 1:00 PM.

• Questions may be submitted through 07/30/2026 to DHayes@mged.com

Responses will be provided to all bidders no later than 07/31/2026.

• Board will vote to award 08/12/2026.

1.5.1 Contractor shall construct its schedule to reflect the following milestone dates, unless otherwise instructed by Owner prior to estimate submittal:

Milestone Date Mobilization TBD by Contractor Start TBD by Contractor Completion 10/01/2026

1.5.2 Contractor shall include a summary of workdays and hours. All work shall be during daylight hours and adhere to any town restrictions for noise.

1.5.3 Contractor shall provide a detailed milestone schedule for the project, which shall be updated regularly.

1.6 MOBILIZATION AND DEMOBILIZATION

1.6.1 Contractor to include the costs of mobilization in the T&M NTE sum portion of the pricing schedule.

1.6.2 All Owner and third-party assets damaged during construction shall be replaced by Contractor at no cost to Owner. This includes, but is not limited to any pipe, equipment, or surrounding damages.

1.6.3 Contractor is solely responsible for all restoration and clean-up of the entire project. All Owner and third-party assets damaged during construction shall be replaced by Contractor at no cost to Owner. This includes, but is not limited to, the removal of all temporary facilities set up for the project and any grading or re-vegetation of any disturbed mailto:DHayes@mged.com

Page: 3 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date:7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360 areas at the facilities and any temporary yards procured by Contractor.

1.6.4 Contractor shall be responsible for all temporary offices, laydown yards, sanitary facilities, lighting, and temporary electric utilities that may be required to complete this scope of work.

Page: 4 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date: 7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360

1.7 ENVIRONMENTAL / RIGHT OF WAY

1.7.1 Contractor will utilize public and lease roads as acceptable means of access to the construction sites. Private roads, driveways, drives and paths, in encountered, ARE NOT to be used.

1.7.2 Contractor is responsible for containing all hazardous/non-hazardous materials and hazardous/non-hazardous wastes. Contractor is responsible for proper storage and labeling of all non-hazardous and hazardous wastes in approved containers and to make these MSDS available to all employees for reference on the project.

1.7.3 Contractor is to maintain a clean workspace throughout the course of the project.

1.8 HEALTH AND SAFETY

1.8.1 Contractor must submit a Health, Environmental, and Safety (HES) plan.

1.8.2 Contractor is responsible for the testing for flammable and explosive gases/vapors prior to executing work in flammable areas (tank facilities, etc.) where possibility of spontaneous ignition exists.

1.8.3 All incidents shall be reported immediately to the Owner Inspection staff, inclusive of near-misses, minor cuts requiring band aids, etc. Contractor to supply an accident/incident report within (24) hours of incident exposure.

1.8.4 Contractor is required to include in their bid a part-time Safety Specialist. Resume(s) shall be included in bid proposal.

1.8.5 Contractor is to hold weekly documented safety meetings that all employees (Contractor, sub-Contractor, etc.) must attend. The Owner Inspector will attend and participate. In addition, Contractor will conduct daily safety meetings (Job Safety Analysis – JSA’s).

Topics shall include, but are not limited to, day-to-day issues, upcoming tasks, etc.

1.8.6 Contractor is to adhere to all Owner PPE (Personal Protective Equipment) requirements.

All PPE must meet OSHA compliance. PPE requirements include, but are not limited to, the following:

• Safety Glasses (if prescription, rigid side shields must be used)

• Fire Retardant Clothing (FRC) – 100%

• Steel-toed footwear

• Hard hats (ANSI/SEA Z89, Type 1, Class E rated)

• Other PPE as project needs dictate.

• Contractor employees are not allowed to consume energy-type drinks while on the job.

Page: 5 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date:7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360

1.8.7 The successful Contractor shall supply the following plans prior to work commencement:

• Project Execution Plan: This schedule shall include milestone dates for start and completion of each craft, manpower/manpower ramping cycle and equipment schedule.

• Site-Specific Safe Work Plan (including a plan that outlines severed or damaged lines).

• Traffic Control Plan (including vehicular, power line crossings, parking plans, etc.).

• Contractor Waste Management Plan.

• Operator Qualifications (where applicable).

• Pressure Testing Plans (Owner will supply the project Test Reports; Contractor to supply detailed plans on how the tests are to be conducted).

1.9 MATERIALS AND LOGISTICS

1.9.1 The Contractor shall provide all materials, equipment, tools, and accessories necessary to safely and successfully perform the hot tap operation. Required materials and equipment shall be available on site prior to commencement of the hot tap procedure and shall comply with applicable codes, standards, and project requirements.

1.9.2 Contractor is responsible for developing their construction schedule in accordance with the following expected dates for material deliveries.

PROJECTED MATERIAL DELIVERIES DATE

Gaumer Electric Trim Heater & Panel Anticipated delivery by 7/31/2026 Kohler Emergency Generator In possession Automatic Transfer Switch Anticipated delivery by 7/31/2026

1.9.3 Any lost or damaged items by Contractor shall be replaced by the Contractor at no cost to Owner. The Contractor shall provide a mitigation plan for any lost material.

1.9.4 Any lost time resulting from lost or damaged items by Contractor shall be covered by the Contractor at no cost to Owner.

1.9.5 Any materials supplied by the Contractor must have Material Tracking and Testing Records (MTRs). All materials must be approved prior to use and installation and supplied to the Owner without exception.

1.9.6 All MTRs are to be submitted to Owner. MTRs and other submittals for approval shall be provided to Owner a minimum of 7 days prior to intended use. Tracking shall be updated weekly.

Page: 6 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date:7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360

1.9.7 All surplus materials shall be returned to the Owner on completion of the project for inventory and staging. All surplus material will be listed on proper forms.

1.9.8 Materials deemed as scrap will become property of Owner. The Chief Inspector, along with Construction Project Manager, will determine what items are deemed scrap for the project. Owner will provide a location for the scrap materials.

1.10 FINAL CLEAN-UP AND RESTORATION

1.10.1 A punch-list shall be generated and items “marked off” as the items are completed.

1.10.2 A final walk-through inspection shall be conducted with Operations upon completion of the punch list.

Page: 7 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date:7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360

2.0 SCOPE OF WORK

2.1 SUPPLY OF MATERIALS AND EQUIPMENT

2.1.1 Owner shall supply and furnish the following equipment:

• Electric Trim Heater

• Electric Trim Heater Control Panel

• Emergency Generator

• Automatic Transfer Switch

2.1.2 Contractor shall be responsible for verifying that delivered equipment complies with the material specifications provided and is in the appropriate quantities.

2.1.3 All materials purchased by MGED will be delivered and stored at 2 Vine St, Middleborough, MA 02346. Contractor is responsible for transporting materials from this location to their fabrication site and ultimately to the project site for final installation.

2.1.4 Contractor shall furnish the mechanical bill of materials defined in the project drawing set including pipe, valves, fittings, bolts, nuts and gaskets, and pipe supports.

2.1.5 Contractor shall be responsible for providing concrete, structural steel, consumables, and all other materials required to inspect, pressure test, and tie-in the newly fabricated assemblies including but not limited to; pressure testing blinds, small valves for testing, sufficient gaskets for assembly and disassembly, hoses, testing equipment, welding rod and supplies, paint, blasting media, mil gauges, tapping equipment, consumables, PPE, concrete, reinforcement, any fuel required and all other construction-related material.

2.1.6 Contractor shall furnish all electrical commodities required for a complete and operable installation, including but not limited to electrical panels, circuit breakers, conduit, fittings, seals, cable, conductors, terminations, supports, and associated hardware, unless otherwise specifically noted as Owner-supplied.

2.2 CIVIL & STRUCTURAL

2.2.1 Foundations and anchoring for trim heater, generator and electrical rack.

2.2.2 Pipe and steel supports specified in the project drawing set will require excavations to facilitate installation of concrete-filled sonotube foundations.

2.2.3 Due to the presence of existing utilities in the area of installation, contractor shall use hydrovac methods for excavation and submit one-call ticket(s).

2.3 MECHANICAL AND PIPING

2.3.1 Contractor is responsible for all labor to fabricate, install, test, coat, and properly support

Page: 8 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date:7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360 all the piping and mechanical systems in accordance with drawings.

2.3.2 Contractor shall provide all equipment and consumables required to perform welding and joining of all pipe within the project scope.

2.3.3 Fuel gas service to the emergency generator is by Owner.

2.3.4 Contractor shall provide NDE services on 100% of welds (buttwelds and fillet welds) and must submit the name of the NDE company intended for use in their proposal.

2.3.5 Welding and NDE shall be supervised by a Certified Welding Inspector. A heat and weld map shall be produced to provide complete, verifiable, and traceable records.

2.3.6 Temporary bolts, flanges, plugs, blinds, caps etc. and inert gas used for pneumatic testing will be provided by the Contractor.

2.3.7 Pressure testing shall be in accordance with ASME B31.3. Pneumatic pressure testing methods will be used. Cornerstone will provide a test letter format indicating proposed test procedures.

2.3.8 After all work is completed, Contractor shall ensure all material used for construction is removed and the site is left in a clean manner equal to or better than found. Proper disposal of the pipe and material removed from the existing trim heater assembly shall be the responsibility of the Contractor.

2.4 ELECTRICAL AND INSTRUMENTATION

2.4.1 CONTRACTOR shall furnish and install all electrical equipment and materials required for installation of the Gaumer process trim heater assembly, including installation of the electrical rack, distribution panel, heater control panel, and automatic transfer switch (ATS), and routing of power and control conduit and cabling between the rack, heater, and associated equipment.

2.4.1.1. Note Owner furnished equipment is listed in section 2.1.1 of this document.

2.4.2 CONTRACTOR shall install conduit in accordance with drawing 25286.10-E-6100.

2.4.3 CONTRACTOR shall reuse existing conduit where identified on drawings.

2.4.4 CONTRACTOR shall install and terminate all proposed cables on site except for terminations at the existing facility PLC and ESD network.

2.4.5 Owner’s electrician shall make final wire terminations at the facility’s existing PLC and at the existing ESD network tie-in location.

2.4.6 CONTRACTOR shall complete all testing and commissioning of the system, including connection of the facility emergency generator to the new ATS.

2.4.7 Utility service to the ATS shall be provided by OWNER.

Page: 9 of 9 Document No.: ENG-DOC-003

Trim Heater Replacement Revision: D Date:7/08/26

Prepared by Cornerstone Energy Services Inc.

38 Resnik Road, Suite 101, Plymouth, MA 02360

2.5 COMMISSIONING

2.5.1 Purging, tie-in and commissioning shall be performed by the CONTRACTOR under direct supervision of MGED personnel.

2.5.2 Contractor shall be prepared to support leaks, remedial work, general support, etc. as needed.

2.5.3 Contractor is also responsible for providing any materials needed to conduct the commissioning tasks including nitrogen, gas detectors, temporary fittings, hoses, etc.

2.5.4 The Contractor has a paramount responsibility to conduct all aspects of this work in a safe manner. This responsibility includes, but is not limited to, compliance with all safety regulations, adherence to their own safety manual, and maintenance of a safety culture designed to reduce risk to workers and encourage corrective actions wherever needed to maintain a safe and healthy workplace.

2.6 ASSUMPTIONS

2.6.1 The following are tasks that all bidders shall include to assist in bid completeness and equivalency.

• Contractor shall assume one full week of commissioning, purge, and tie-in activities, 8-hour days.

• All fabrication is to occur off-site, with the exception of field welds to ensure fit up.

• Contractor shall host and participate in a weekly status/coordination conference call.

Assume 6 weeks.

• Contractor shall provide weekly updates of progress and schedule.

• Photos shall be emailed for significant activities or at the request of MGED.

• All pricing shall be in accordance with the provided schedule of prevailing wages.

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446 MAIN STREET - SUITE 2001 WORCESTER, MA 01604

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TRIM HEATER STAINLESS STEEL PIPING

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PIPING SECTION 1 OF 2

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MIDDLEBOROUGH, MA

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TRIM HEATER REPLACEMENT PROJECT

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CONTAINS CRITICAL ENERGY INFRASTRUCTURE INFORMATION DO NOT RELEASEDO NOT RELEASE

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CLIENT

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PROFESSIONAL ENG. STAMP

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SET REV:

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446 MAIN STREET - SUITE 2001 WORCESTER, MA 01604

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SHEET 1 OF 2

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PROCESS & INSTRUMENTATION DIAGRAM

AutoCAD SHX Text

MIDDLEBOROUGH, MA

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TRIM HEATER REPLACEMENT PROJECT

AutoCAD SHX Text C

AutoCAD SHX Text N/A

AutoCAD SHX Text 25286.10-P-2100

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CMC

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ETP

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DML

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ARS

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MIDDLEBOROUGH GAS & ELECTRIC

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NOT FOR CONSTRUCTION

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CONTAINS CRITICAL ENERGY INFRASTRUCTURE INFORMATION DO NOT RELEASEDO NOT RELEASE

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REVISION HISTORY

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REV

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DATE

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REVISIONS

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CHK

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APP

AutoCAD SHX Text B

AutoCAD SHX Text 12/10/25

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ISSUED FOR 60% REVIEW

AutoCAD SHX Text

CMC

AutoCAD SHX Text

RRG

AutoCAD SHX Text C

AutoCAD SHX Text 04/28/26

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ISSUED FOR 90% REVIEW

AutoCAD SHX Text

CMC

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ARS

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REFERENCE DRAWINGS

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COMPANY

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DRAWING NO.

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DRAWING TITLE

AutoCAD SHX Text E-103 ELECTRIC TRIM HEATER MANUFACTURER: GAUMER PROCESS PART NUMBER: ICCS6F9N160M4EDK NOM. POWER: 90 kW INLET/OUTLET SIZE: 4"

AutoCAD SHX Text T-100

AutoCAD SHX Text E-101

AutoCAD SHX Text E-102

AutoCAD SHX Text T-100 LNG STORAGE TANK MANUFACTURER: PROCESS ENGINEERING INC. VOLUME: 30000 GAL MAWP: 90 PSI

AutoCAD SHX Text E-104 AMBIENT VAPORIZER MANUFACTURER: THERMAX FLOW RATE: 30000 SCFH MAWP: 275 PSI

AutoCAD SHX Text E-101 AMBIENT VAPORIZER MANUFACTURER: PROCESS ENGINEERING INC. FLOW RATE: 32500 SCFH MAWP: 150 PSI

AutoCAD SHX Text E-102 AMBIENT VAPORIZER MANUFACTURER: PROCESS ENGINEERING INC. FLOW RATE: 32500 SCFH MAWP: 150 PSI

AutoCAD SHX Text

LNG TRUCK UNLOADING STATION HOSE CONNECTION

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NATURAL GAS

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TO VINE ST. DISTRIBUTION SYSTEM

AutoCAD SHX Text E-104

AutoCAD SHX Text E-103

AutoCAD SHX Text 2"

AutoCAD SHX Text V-211

AutoCAD SHX Text 2"

AutoCAD SHX Text V-210

AutoCAD SHX Text

CSO

AutoCAD SHX Text 2"

AutoCAD SHX Text V-202

AutoCAD SHX Text

CSO

AutoCAD SHX Text 1-1/2"X2"

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SET: 150 PSI

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PRV-201

AutoCAD SHX Text 2"

AutoCAD SHX Text V-212

AutoCAD SHX Text 2"

AutoCAD SHX Text V-209

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CSO

AutoCAD SHX Text 2"

AutoCAD SHX Text V-201

AutoCAD SHX Text

CSO

AutoCAD SHX Text 1-1/2"X2"

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SET: 150 PSI

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PRV-200

AutoCAD SHX Text 2"

AutoCAD SHX Text V-213

AutoCAD SHX Text 2"

AutoCAD SHX Text V-208

AutoCAD SHX Text

CSO

AutoCAD SHX Text 1"

AutoCAD SHX Text V-206

AutoCAD SHX Text

CSO

AutoCAD SHX Text 1"X1 1/2"

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SET: 150 PSI

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PRV-202

AutoCAD SHX Text 2"

AutoCAD SHX Text 3/4"

AutoCAD SHX Text V-215

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CSO

AutoCAD SHX Text 3/4"X3/4"

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SET: 150 PSI

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PRV-204

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GRADE

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GRADE

AutoCAD SHX Text 3"

AutoCAD SHX Text V-203

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CSO

AutoCAD SHX Text 3"

AutoCAD SHX Text V-204

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CSC

AutoCAD SHX Text 1"X1"

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SET: 100 PSI

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PRV-203

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AutoCAD SHX Text V-205

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CSO

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TSL

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AutoCAD SHX Text 0°F

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TAL

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TALL

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TSLL

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AutoCAD SHX Text 20°F

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ESD LOGIC

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ESD OUT

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SOV-100 SOV-200 SOV-500

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GRADE

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GRADE

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AutoCAD SHX Text 4"

AutoCAD SHX Text 6"X4"

AutoCAD SHX Text 6"

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AutoCAD SHX Text 3"X2"

AutoCAD SHX Text 2"

AutoCAD SHX Text V-102

AutoCAD SHX Text 2"

AutoCAD SHX Text V-101

AutoCAD SHX Text 3"X2"

AutoCAD SHX Text 2"

AutoCAD SHX Text

AutoCAD SHX Text 2"X1"

AutoCAD SHX Text 1"

AutoCAD SHX Text V-401

AutoCAD SHX Text 2"

AutoCAD SHX Text V-180

AutoCAD SHX Text

CSO

AutoCAD SHX Text 1-1/2"X1-1/2"

AutoCAD SHX Text

SET: 90 PSI

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PRV-151

AutoCAD SHX Text 2"

AutoCAD SHX Text V-150

AutoCAD SHX Text 3"X2"

AutoCAD SHX Text 1"

AutoCAD SHX Text V-404

AutoCAD SHX Text

CSO

AutoCAD SHX Text 1"X1"

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SET: 150 PSI

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PRV-400

AutoCAD SHX Text 3"X2"

AutoCAD SHX Text 2"

AutoCAD SHX Text V-402

AutoCAD SHX Text 2"X1"

AutoCAD SHX Text 1"

AutoCAD SHX Text V-406

AutoCAD SHX Text 1"

AutoCAD SHX Text V-407

AutoCAD SHX Text 1"

AutoCAD SHX Text V-405

AutoCAD SHX Text 1"

AutoCAD SHX Text V-160

AutoCAD SHX Text

CSO

AutoCAD SHX Text 1"X1"

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SET: 150 PSI

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PRV-100

AutoCAD SHX Text 1/2"

AutoCAD SHX Text V-190

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VENT

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AutoCAD SHX Text V-100

AutoCAD SHX Text 2"

AutoCAD SHX Text

CV-100

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FCV-100

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AutoCAD SHX Text I/P

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AutoCAD SHX Text A/S

AutoCAD SHX Text

SOV-100

AutoCAD SHX Text I

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REC

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AutoCAD SHX Text 6"X4"

AutoCAD SHX Text 6"

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FCV-200

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SOV-200

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FIQ

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AutoCAD SHX Text A/S

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FCV-500

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SOV-500

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AutoCAD SHX Text A/S

AutoCAD SHX Text 1"

AutoCAD SHX Text V-195

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CSO

AutoCAD SHX Text 1"X1 1/4"

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AutoCAD SHX Text 4"

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CV-200

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AutoCAD SHX Text V-207

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AutoCAD SHX Text V-002

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ODORIZER

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AutoCAD SHX Text V-403

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CSO

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SET: 150 PSI

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PRV-401

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PRESSURE BUILD COIL

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FULL TRYCOCK

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NITROGEN SUPPLY

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ODORANT TANK

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FROM ESD LOGIC

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FROM ESD LOGIC

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FROM ESD LOGIC

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FILTER

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TM-200

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PDM-500

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FH-XXX

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BAC-XXX

AutoCAD SHX Text 4"X3"

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AutoCAD SHX Text PCV-900 FUEL GAS REGULATOR MANUFACTURER: ITRON MODEL: B31IMR INLET SIZE: 3/4" OUTLET SIZE: 1" SET POINT: 7" WC

AutoCAD SHX Text FM-900 FUEL GAS DIAPHRAGM METER MANUFACTURER: ELSTER AMERICAN METER MODEL: AC-630 MAOP: 25 PSI SIZE: 1"

AutoCAD SHX Text PRV-200, PRV-201 RELIEF VALVE MANUFACTURER: ANDERSON GREENWOOD MODEL: 81SF1216-G SIZE: 1-1/2"x2" SET POINT: 150 PSI

AutoCAD SHX Text PRV-202 RELIEF VALVE MANUFACTURER: ANDERSON GREENWOOD MODEL: 81SM88-8 SIZE: 1"x1-1/2" SET POINT: 150 PSI

AutoCAD SHX Text PRV-203 RELIEF VALVE MANUFACTURER: ANDERSON GREENWOOD MODEL: 81SM88-6 SIZE: 1"x1" SET POINT: 100 PSI

AutoCAD SHX Text PRV-204 RELIEF VALVE MANUFACTURER: ANDERSON GREENWOOD MODEL: 81SM68-8 SIZE: 3/4"x3/4" SET POINT: 150 PSI

AutoCAD SHX Text PRV-150, PRV-151 RELIEF VALVE MANUFACTURER: ANDERSON GREENWOOD MODEL: 81SF1216-G SIZE: 1-1/2"x1-1/2" SET POINT: 90 PSI

AutoCAD SHX Text PRV-401 RELIEF VALVE MANUFACTURER: ANDERSON GREENWOOD MODEL: 81SM46-4 SIZE: 1/2"x1/2" SET POINT: 150 PSI

AutoCAD SHX Text PRV-100, PRV-400 RELIEF VALVE MANUFACTURER: ANDERSON GREENWOOD MODEL: 81SM88-6 SIZE: 1"x1" SET POINT: 150 PSI

AutoCAD SHX Text 2"

AutoCAD SHX Text 2"X3"

AutoCAD SHX Text 1"

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AutoCAD SHX Text A

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AutoCAD SHX Text B

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GRADE

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FUEL GAS

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FROM VINE STREET

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AutoCAD SHX Text

PCV-900

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AutoCAD SHX Text

FM-900

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AutoCAD SHX Text 1"X3/4"

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FUEL GAS

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TO GENERATOR

AutoCAD SHX Text 3/4"

AutoCAD SHX Text V-901

AutoCAD SHX Text 3"X4"

AutoCAD SHX Text 1"

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PRV-300

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SET 60-65 PSI

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PCV-400

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SET 55 PSI

AutoCAD SHX Text 2"

AutoCAD SHX Text 3"

AutoCAD SHX Text 2"

AutoCAD SHX Text V-170

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CSO

AutoCAD SHX Text 1-1/2"X1-1/2"

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SET: 90 PSI

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PRV-150

AutoCAD SHX Text V-200

AutoCAD SHX Text 4"

AutoCAD SHX Text

CLOUD DENOTES NEW WORK

AutoCAD SHX Text FCV-100 FLOW CONTROL VALVE ACTUATOR MANUFACTURER: FISHER ACTUATOR MODEL: 657 VALVE SIZE: 2"

AutoCAD SHX Text 1"

AutoCAD SHX Text V-214

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CSO

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3"-NG-0001-FD

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3"-NG-0002-FD

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NFPA 54

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49 CFR 192

AutoCAD SHX Text 1/2"

AutoCAD SHX Text V-302

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TIT

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AutoCAD SHX Text 1/2"

AutoCAD SHX Text V-301

AutoCAD SHX Text

TIC

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SP=60 F

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TH1

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TH2

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TH3

AutoCAD SHX Text

TRIM HEATER CONTROL PANEL

AutoCAD SHX Text H=335 F

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TSHH

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TH1

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TSHH

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TH2

CanniffColin Highlight

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SECTION

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ALL NEW ASTM A312 SS STEEL PIPE DOWNSTREAM OF TRIM HEATER TO EXISTING V-203

CanniffColin Text Box A

CanniffColin Rectangle

CanniffColin Text Box B

CanniffColin Text Box

ALL NEW ASTM A312 SS STEEL PIPE UPSTREAM OF TRIM HEATER FROM EXISTING V-205

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ENG-M-001

CanniffColin Callout

ADD 3" ASTM A182 F304 BLIND FLANGE FOR PRESSURE TEST

CanniffColin Callout

ADD 3" ASTM A182 F304 BLIND FLANGE FOR PRESSURE TEST

CanniffColin Callout

TAP V-302 FOR PRESSURE TEST ENG-M-001, SECTION B

CanniffColin Callout

TAP V-301 FOR PRESSURE TEST ENG-M-001, SECTION A

CanniffColin Callout

V-214 TO BE CLOSED DURING SECTION B PRESSURE TESTING

CanniffColin Callout

OLET FOR TW-202 TO BE PLUGGED DURING PRESSURE TEST

MIDDLEBOROUGH GAS & ELECTRIC TRIM HEATER REPLACEMENT PROJECT

AutoCAD SHX Text DRAWING INDEX SHEET# REV TITLE REV TITLE TITLE PROCESS 25286-P-2000 C PROCESS & INSTRUMENTATION LEGEND SHEET 1 C PROCESS & INSTRUMENTATION LEGEND SHEET 1 PROCESS & INSTRUMENTATION LEGEND SHEET 1 25286-P-2001 C PROCESS & INSTRUMENTATION LEGEND SHEET 2 C PROCESS & INSTRUMENTATION LEGEND SHEET 2 PROCESS & INSTRUMENTATION LEGEND SHEET 2 25286-P-2100 C PROCESS & INSTRUMENTATION DIAGRAM SHEET 1 C PROCESS & INSTRUMENTATION DIAGRAM SHEET 1 PROCESS & INSTRUMENTATION DIAGRAM SHEET 1 25286-P-2101 C PROCESS & INSTRUMENTATION DIAGRAM SHEET 2 C PROCESS & INSTRUMENTATION DIAGRAM SHEET 2 PROCESS & INSTRUMENTATION DIAGRAM SHEET 2 MECHANICAL 25286-M-4300-DEMO C EXISTING PIPE DEMOLITION C EXISTING PIPE DEMOLITION EXISTING PIPE DEMOLITION 25286-M-3000 C GENERAL ARRANGEMENT C GENERAL ARRANGEMENT GENERAL ARRANGEMENT 25286-M-4000 C PIPING SECTION 1 OF 2 - TRIM HEATER STAINLESS STEEL PIPING C PIPING SECTION 1 OF 2 - TRIM HEATER STAINLESS STEEL PIPING PIPING SECTION 1 OF 2 - TRIM HEATER STAINLESS STEEL PIPING 25286-M-4001 C PIPING SECTION 2 OF 2 - ELECTRIC TRIM HEATER C PIPING SECTION 2 OF 2 - ELECTRIC TRIM HEATER PIPING SECTION 2 OF 2 - ELECTRIC TRIM HEATER 25286-M-4100 C DETAILS - PIPE SUPPORTS C DETAILS - PIPE SUPPORTS DETAILS - PIPE SUPPORTS 25286-M-4500 C MECHANICAL GENERAL NOTES C MECHANICAL GENERAL NOTES MECHANICAL GENERAL NOTES 25286-M-5000 C MECHANICAL BILL OF MATERIALS C MECHANICAL BILL OF MATERIALS MECHANICAL BILL OF MATERIALS ISOMETRICS 25286-3IN-NG-0001-FD C ISOMETRIC SHEET 1 - TRIM HEATER INLET PIPING C ISOMETRIC SHEET 1 - TRIM HEATER INLET PIPING ISOMETRIC SHEET 1 - TRIM HEATER INLET PIPING 25286-3IN-NG-0002-FD C ISOMETRIC SHEET 2 - TRIM HEATER OUTLET PIPING C ISOMETRIC SHEET 2 - TRIM HEATER OUTLET PIPING ISOMETRIC SHEET 2 - TRIM HEATER OUTLET PIPING CIVIL 25286-C-5000 C GENERAL NOTES C GENERAL NOTES GENERAL NOTES 25286-C-5500 C FOUNDATION DETAILS - GENERATOR C FOUNDATION DETAILS - GENERATOR FOUNDATION DETAILS - GENERATOR 25286-C-5510 C FOUNDATION DETAILS - TRIM HEATER C FOUNDATION DETAILS - TRIM HEATER FOUNDATION DETAILS - TRIM HEATER 25286-C-5520 C CIVIL DETAILS - ELECTRICAL RACK C CIVIL DETAILS - ELECTRICAL RACK CIVIL DETAILS - ELECTRICAL RACK 25286-C-5900 C TYPICAL DETAILS C TYPICAL DETAILS TYPICAL DETAILS ELECTRICAL 25286-E-1000 C ONE LINE DIAGRAM C ONE LINE DIAGRAM ONE LINE DIAGRAM 25286-E-6000 C AREA CLASSIFICATION PLAN C AREA CLASSIFICATION PLAN AREA CLASSIFICATION PLAN 25286-E-6001 C AREA CLASSIFICATION DETAILS C AREA CLASSIFICATION DETAILS AREA CLASSIFICATION DETAILS 25286-E-6100 C CONDUIT PLAN C CONDUIT PLAN CONDUIT PLAN 25286-E-6101 C CONDUIT & INSTRUMENTATION DETAILS C CONDUIT & INSTRUMENTATION DETAILS CONDUIT & INSTRUMENTATION DETAILS 25286-E-6200 C GROUNDING PLAN C GROUNDING PLAN GROUNDING PLAN 25286-E-6201 C GROUNDING DETAILS C GROUNDING DETAILS GROUNDING DETAILS 25286-E-6500 C CABLE SCHEDULE C CABLE SCHEDULE CABLE SCHEDULE 25286-E-6501 C ELECTRICAL BILL OF MATERIALS C ELECTRICAL BILL OF MATERIALS ELECTRICAL BILL OF MATERIALS 25286-E-7100 C WIRING DIAGRAMC WIRING DIAGRAMWIRING DIAGRAM

AutoCAD SHX Text

MIDDLEBOROUGH, MASSACHUSETTS

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PREPARED BY:

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ISSUED FOR 90% REVIEW

REVISION CC

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SCALE:

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DRAWING INFO

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ENGINEERING INFO

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DRN:

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AutoCAD SHX Text B

AutoCAD SHX Text C

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CLIENT

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PROFESSIONAL ENG. STAMP

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PREPARED BY

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ENG:

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CHK:

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APP:

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SET REV:

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446 MAIN STREET - SUITE 2001 WORCESTER, MA 01604

AutoCAD SHX Text

SHEET 1

AutoCAD SHX Text

PROCESS & INSTRUMENTATION DIAGRAM LEGEND

AutoCAD SHX Text

MIDDLEBOROUGH, MA

AutoCAD SHX Text

TRIM HEATER REPLACEMENT PROJECT

AutoCAD SHX Text C

AutoCAD SHX Text N/A

AutoCAD SHX Text 25286.10-P-2000

AutoCAD SHX Text

CMC

AutoCAD SHX Text

ETP

AutoCAD SHX Text

DML

AutoCAD SHX Text

ARS

AutoCAD SHX Text

MIDDLEBOROUGH GAS & ELECTRIC

AutoCAD SHX Text

NOT FOR CONSTRUCTION

AutoCAD SHX Text

CONTAINS CRITICAL ENERGY INFRASTRUCTURE INFORMATION DO NOT RELEASEDO NOT RELEASE

AutoCAD SHX Text

REVISION HISTORY

AutoCAD SHX Text

REV

AutoCAD SHX Text

DATE

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REVISIONS

AutoCAD SHX Text

CHK

AutoCAD SHX Text

APP

AutoCAD SHX Text A

AutoCAD SHX Text 06/20/25

AutoCAD SHX Text

ISSUED FOR 30% REVIEW

AutoCAD SHX Text

DML

AutoCAD SHX Text

ARS

AutoCAD SHX Text B

AutoCAD SHX Text 12/10/25

AutoCAD SHX Text

ISSUED FOR 60% REVIEW

AutoCAD SHX Text

CMC

AutoCAD SHX Text

RRG

AutoCAD SHX Text C

AutoCAD SHX Text 04/28/26

AutoCAD SHX Text

ISSUED FOR 90% REVIEW

AutoCAD SHX Text

CMC

AutoCAD SHX Text

ARS

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REFERENCE DRAWINGS

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COMPANY

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DRAWING NO.

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DRAWING TITLE

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CAPILLARY TUBE

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MECHANICAL LINK

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SOFTWARE OR DATA LINK

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VARIABLE AREA FLOW INSTRUMENT

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TARGET FLOW INSTRUMENT

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VORTEX FLOW INSTRUMENT

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MOTOR ACTUATOR

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ELECTRO-HYDRAULIC ACTUATOR

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SUMMING FUNCTION

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AVERAGING FUNCTION

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INTEGRAL FUNCTION

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MULTIPLYING FUNCTION

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DIVIDING FUNCTION

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UNSPECIFIED FUNCTION

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TIME FUNCTION

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HIGH SELECTING FUNCTION

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LOW SELECTING FUNCTION

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HIGH LIMITING FUNCTION

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LOW LIMITING FUNCTION

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ULTRASONIC FLOW INSTRUMENT

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AutoCAD SHX Text M

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PRESSURE SETTING

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SUBTRACTING FUNCTION

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XXX

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XXX

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CONNECTION TO PROCESS LINE

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INVERSE DERIVATIVE FUNCTION

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SPRING OPERATED PRESSURE REGULATOR

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PANEL/RACK MOUNTED (CONTROL ROOM/FIELD PANEL)

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DISTRIBUTED CONTROL SYSTEM

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SAFETY LOGIC SYSTEM

AutoCAD SHX Text P

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ANGLE GLOBE VALVE

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HOSE VALVE

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BALL VALVE

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CHECK VALVE

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SINGLE BASKET STRAINER

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CONTINUATION LEADER

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VENT/DRAIN VALVE

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FLAME ARRESTOR

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CENTRIFUGAL PUMP

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GEAR PUMP

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BUTTERFLY VALVE

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TRIPLE DUTY VALVE

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RELIEF VALVE-SINGLE PORT

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SERIAL COMMUNICATION

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FLOW RATE CALCULATION

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RECIPROCATING PUMP

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SS TUBING

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PISTON ACTUATOR (DOUBLE OR SINGLE ACTING)

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SELF CONTAINED PRESSURE REGULATOR

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PILOT OPERATED

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TURBINE FLOW METER

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TYPE

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NORMALLY OPEN

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NORMALLY CLOSED

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RELIEF VALVE-DUAL PORT

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COMBO WORKER-MONITOR

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PNEUMATIC BINARY SIGNAL

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ELECTRIC BINARY SIGNAL

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MULTIPLE VALVE MANIFOLD (INSERT NUMBER FOR X)

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PRIMARY PIPING

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SECONDARY PIPING

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INSULATED LINE

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ELECTRIC HEAT TRACED AND INSULATED

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TO DRAIN HEADER

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TO VENT HEADER

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DRAIN TO GROUND/SOURCE

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ATMOSPHERIC VENT

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ELECTRIC HEAT TRACED

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SKID OR PANEL LIMIT

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TIE POINT

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SPEC BREAK

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SCOPE BREAK

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X-VALVE

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NOTES

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DRAWING NUMBER

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NOTES

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LIGHT "Y" - YELLOW/AMBER "W" - WHITE "B" - BLUE "R" - RED "G" - GREEN

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FIELD MOUNTED INSTRUMENT

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XXX

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XXX

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POSITIVE DISPLACEMENT FLOW INSTRUMENT

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OVP

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OVER-VOLTAGE PROTECTOR/SOLID STATE DE-COUPLER

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MANUAL WHEEL/EXTENDED BONNET

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RESET OPTION

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DIAPHRAGM ACTUATOR

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PRESSURE BALANCED DIAPHRAGM ACTUATOR

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WEIGHT ACTUATOR

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HYDRAULIC

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ELECTRIC SIGNAL

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SIGNAL LINES

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SPECIALTY

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ANODELESS RISER

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RELIEF VALVE-DUAL PORT PILOT OPERATED

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RELIEF VALVE-SINGLE PORT PILOT OPERATED

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ANGLE HOSE VALVE

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NEEDLE VALVE

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GLOBE VALVE

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GATE VALVE

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PLUG VALVE

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AutoCAD SHX Text CONVERT FUNCTION E = VOLTAGE I = CURRENT P = PNEUMATIC H = HYDRAULIC A = ANALOG D = DIGITAL O = ELECTROMAGNETIC OR SONIC R = RESISTANCE

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DERIVATIVE FUNCTION

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PROPORTIONAL FUNCTION

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FLOW INDICATOR

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AVERAGING PITOT TUBE

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MAGNETIC FLOW INSTRUMENT

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CORIOLIS FLOW METER

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PINCH VALVE

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FLOAT VALVE

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3-WAY VALVE

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4-WAY VALVE

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DIAPHRAGM VALVE

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AXIAL FLOW VALVE

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DELUGE VALVE

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YALE CAP

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CNG HOSE TRAILER COUPLING

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BREAKAWAY COUPLING

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BREATHER VENT

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INSULATION GASKET

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INSULATION UNION

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VENTURI TUBE

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NOZZLE

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FLANGE / BLIND FLANGE

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ORIFICE FLANGE

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ORIFICE WITH TAPPED FLANGES

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SPECTACLE BLIND

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OPEN PADDLE SPACER

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PLUG

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CAP

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THREADED CAP

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CONCENTRIC REDUCER

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ECCENTRIC REDUCER

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HOSE CONNECTION

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END CLOSURE

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TRAP

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AIR VENT

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AUTO DRAIN

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THREADOLET

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THREADOLET WITH TH. THERMOWELL

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WELDOLET

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SOCKOLET

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SOCKOLET WITH SW. THERMOWELL

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RAIN/VENT CAP

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UNION

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VENT SILENCER

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IN-LINE SILENCER

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EXPANSION JOINT

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FLEXIBLE HOSE

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TEE STRAINER

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Y STRAINER

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TRUNCATED CONE STRAINER

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CONE STRAINER

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FLAT PLATE STRAINER

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DIAPHRAGM PUMP

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FLOW CONDITIONER

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AIR SEPARATOR

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SUCTION DIFFUSER

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AMBIENT HEATER

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RUPTURE DISK

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ELECTRIC HEATER "C" IF CATALYTIC

AutoCAD SHX Text REMOTE TELEMETRY UNIT SIGNAL A=ANALOG D=DISCRETE I=INPUT O=OUTPUT HSC=HIGH SPEED COUNTER P=PULSE S=SERIAL

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INSTRUMENT & SIGNAL IDENTIFICATION

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OFF-LINE INSTRUMENTS

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EQUIPMENT

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FITTINGS

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VALVES

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INSTRUMENT COMPONENT LABELS

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IN-LINE INSTRUMENTS

AutoC…

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File details come from the government source that posted it. Updated Jul 10, 2026.