SOW Medical Center Steam trap replacement and repair Final.docx

VA New England Healthcare System Manchester VA Medical Center 718 Smyth Road Manchester, NH 03104

STATEMENT OF WORK

Medical Center Steam trap replacement & repair

1.0 INTRODUCTION

Main Medical Center steam supply and condensate return are not working properly or efficiently. Raw steam is being discharged to the exterior of the building through a vent and is condensing on the cool brick of the building. The condensate is infiltrating through the exterior building walls and is causing moisture issues in several locations of the building including the Medical Center Server Room. In addition, the facility has many failed, plugged, and blowing by steam traps that causes a lot of waste and severe water hammer.

There are many steam traps that have failed, and this is contributing to raw steam being discharged is not returning to the boilers (Building 7). An itemized list is attached (Attachment A).

Some isolation valves required to shut down zones are in a confined space (sub-basement) of the medical center. To enter the confined space, contractors are required to be trained in confined space and a rescue team shall be always present when contractors are in the confined space. VA Manchester Safety shall review and approve the contractors confined space program. Contractor shall not enter the confined space until the program has been approved by VA Safety. The responsibility for the confined space staffing and training are the solely the responsibility of the contractor.

VA Boiler Plant & Maintenance will assist with any required shutdowns, contractor shall use their own lock-out tag-out equipment to secure steam/condensate while working is occurring. VA Manchester Safety shall review and approve the contractor’s lockout tagout program. Contractor shall work with VA to develop a shut-down plan for the Medical Center once the labor effort has been determined. All shutdowns require 14 calendar day notice minimum. Contractor shall provide a full calendar of proposed work activates prior to the start of the work and a 3-week lookahead calendar at weekly meetings.

The work includes but is not limited to; confined space entry; testing, equipment, material, tools, labor, as well as all work associated with the replacement and repair of steam system.

The VA shall be considered the Engineer of record and all RFI’s and submittals shall be sent to them for resolution through the Contracting Officer.

After Contract Award the Contractor is required to provide a Payment Bond, a Performance Bond and an Insurance certificate within 10 days. Once received and confirmed, the period of performance for the above-mentioned project will begin with a Notice to Proceed (NTP) issued at a Pre-Construction Meeting (Pre-Con). As part of this solicitation the General Contractor (GC) shall submit a preliminary schedule using Microsoft Project showing the methodology for accomplishing the project.

The overall period of performance for this work is 180 calendar days after NTP has been issued. This period of performance can be adjusted as needed to support the work. Upon notification to the contracting officer a no cost extension can be granted to the contract.

2.0 PROJECT STAFF

CONTRACTING OFFICER (CO)

TBD

718 Smyth Road| BSB Suite 105| Manchester, NH 03104

CONTRACTING OFFICERS TECHNICAL REPRESENTATIVE (COR):

Eugene Moser Boiler Plant Supervisor 718 Smyth Road | Manchester, NH 03104 Phone 603.624.4366 x6173 | Email eugene.moser@va.gov

3.0 PRICING

Project pricing shall be submitted in Three (3) separate tasks as outlined below.

Task 1: Radiator Steam Traps, Radiator Control Valves (TCVs), and Insulation Existing: These items to be replaced are located generally under exterior windows. Condition documentation and list of locations are attached (Attachment A). Contractor shall include all costs associated with the following (but not limited to): documentation, confined space entry, testing of system components, equipment, tools, labor, and support/administration services for the replacement and repair of condensate.

Task 2: Mechanical Distribution Steam Traps and Insulation: These items to be replaced are located at end of runs/drip legs and at steam consuming equipment. The sizes would range from ½” line feeds to 2” line feeds. See attachment A for Steam Traps sizing and location. The contractor will also carry and allowance for approximately 1000’ of 2” schedule 80 pipe and associated insulation that will also need to be replaced.

Task 3: Adding Isolation Valves on Risers and Feeders: These items to be added will allow the VA Facility Employees and Contractors to be able to isolate a certain portion of the steam system to do work making it safe and possibly not requiring a plant shutdown to do this work especially during winter season. The sizes would range from ½” line feeds to 2” line feeds. There are 5 zones and 8 subzones per zone (40 subzones total). Each subzone will require installation of a double block and bleed valve configuration for isolation of the subzone.

4.0 SCOPE

This project involves the following items as part of the project scope that has been broken down into three specific divisions:

TASK 1: Steam trap and radiator control valves and insulation replacement

Attachment A contains the exact listing of the number of traps that need to be replaced as well as any deficiencies documented. All traps listed are to be replaced. Traps are to be replaced with traps from the same manufacturer (model may differ depending on location). Manufacturer to be Watson McDaniel.

While traps are being replaced contractor shall take notice of the condition of the piping to and from each trap. If the piping is severely tuberculated it shall be replaced under this contract via the allowance for additional piping and insulation.

At all radiator locations (see attachment A) new radiator thermostatic control valves (TCVS) shall be installed. TCVs are to be installed at all radiator locations with valves from the same manufacturer.

At all locations of work, insulation is to be installed upon completion of this task.

TASK 2: Mechanical Distribution Steam Traps and Insulation:

Attachment A contains the exact listing of the number of traps that need to be replaced as well as any deficiencies documented. All traps listed are to be replaced. Traps are to be replaced with traps from the same manufacturer (model may differ depending on location). Manufacturer to be Watson McDaniel.

While traps are being replaced contractor shall take notice of the condition of the piping to and from each trap. If the piping is severely tuberculated it shall be replaced under this contract via the allowance for additional piping and insulation.

At all locations of work, insulation is to be installed upon completion of this task.

TASK 3: Adding Isolation Valves on Risers and Feeders

In order to reduce areas affected by shutdowns and prevent whole building shutdowns when steam systems need to be isolated, isolation valves in the double block and bleed configuration are to be installed. This task shall be the first task executed as part of the contract.

Building 1 has 8 floors consisting of 5 zones 1, 2, 2A, 3, 3A. Each zone at each floor requires the ability to isolate the floor from the rest of the hospital. This requires the installation at 40 different locations. This shall reduce the need for shutdowns and shall expedite the project. All valves installed as part of this task shall be by the same manufacturer. Milwaukee Valve, Bonney Forge or equal.

While isolation valves are being install contractor shall take notice of the condition of the piping to and from each location. If the piping is severely tuberculated it shall be replaced under this contract via the allowance for additional piping and insulation.

At all locations of work, insulation is to be installed upon completion of this task.

ALLOWANCE FOR ADDITIONAL PIPING AND ADDITIONAL INSULATION:

Not knowing the internal condition of the piping, it is impossible to know what the present condition is. The contractor shall carry and allowance for approximately 1000’ of 2” schedule 80 pipe and associated insulation that will also need to be replaced. If greater or less than length of the estimated piping requires replacement an equitable adjustment (contract modification) can be done, or a credit be given to the VA.

Under each separate task the contractor will also provide tags for all the valves and traps and note their locations and tag numbers on a blueprint and the excel spreadsheet provided by the VA.

Metal Valve and Trap tags will be marked as follows WW-XXX-Y-ZZ. Legend below. Marked on as built paper print, spreadsheet and at each device.

Example: Trap located in Room D209 on the second Floor. 02-D209-T-01 Example: Valve located in West Stairwell on the Basement Floor. 0B-WSTR-V-01

SPECIFICATIONS

All piping that is replaced shall be replaced with the following:

· Steam Piping: Steel, ASTM A53/A53M, Grade B, seamless or ERW; ASTM A106/A106M Grade B, seamless; Schedule 40.

· Steam Condensate and Pumped Condensate Piping: Steel, ASTM A53/A53M, Grade B, seamless or ERW; or ASTM A106/A106M Grade B, seamless, Schedule 80.

· Vent Piping: Steel, ASTM A53/A53M, Grade B, seamless or ERW; ASTM A106/A106M Grade B, seamless; Schedule 40, galvanized.

Any fittings that are replaced shall be replaced with the following:

· 50 mm (2 inches) and Smaller: Screwed or welded.

· Cast iron fittings or piping is not acceptable for steam and steam condensate piping. Bushing reduction or use of close nipples is not acceptable.

· Forged steel, socket welding or threaded: ASME B16.11, 13,790 kPa (2000 psig) class with ASME B1.20.1 threads. Use Schedule 80 pipe and fittings for threaded joints. Lubricant or sealant shall be oil and graphite or other compound approved for the intended service.

· Unions: Forged steel, 13,790 kPa (2000 psig) class or 20,685 kPa (3000 psig) class on piping 50 mm (2 inches) and under.

· Steam line drip station and strainer quick-couple blowdown hose connection: Straight through, plug and socket, screw or cam locking type for 15 mm (1/2 inch) ID hose. No integral shut-off is required.

· 65 mm (2-1/2 inches) and Larger: Welded or flanged joints.

· Cast iron fittings or piping is not acceptable for steam and steam condensate piping.

· Butt welding fittings: ASME B16.9 with same wall thickness as connecting piping. Elbows shall be long radius type, unless otherwise noted.

· Welding flanges and bolting: ASME B16.5:

· Steam service: Weld neck or slip-on, raised face, with non- asbestos gasket. Non-asbestos gasket shall either be stainless steel spiral wound strip with flexible graphite filler or compressed inorganic fiber with nitrile binder rated for saturated and superheated steam service 400 degrees C (750 degrees F) and 10,342 kPa (1500 psig).

· Flange bolting: Carbon steel machine bolts or studs and nuts, ASTM A307, Grade B.

· Welded Branch and Tap Connections: Forged steel weldolets, or branchlets and threadolets may be used for branch connections up to one pipe size smaller than the main. Forged steel half-couplings, ASME B16.11 may be used for drain, vent and gauge connections.

Any valves that are replaced shall be replaced with the following:

· Asbestos packing is not acceptable.

· All valves of the same type shall be products of a single manufacturer.

· Provide chain operators for valves 150 mm (6 inches) and larger when the centerline is located 2.1 m (7 feet) or more above the floor or operating platform.

· Shut-Off Valves:

· Gate Valves:

· 50 mm (2 inches) and smaller: Forged steel body, rated for 1380 kPa (200 psig) saturated steam, 2758 kPa (400 psig) WOG, bronze wedges and Monel or stainless-steel seats, threaded ends, rising stem, and union bonnet.

· 65 mm (2-1/2 inches) and larger: Flanged, outside screw and yoke.

· High pressure steam 110 kPa (16 psig) and above system): Cast steel body, ASTM A216/A216M grade WCB, 1035 kPa (150 psig) at 260 degrees C (500 degrees F), 11-1/2 to 13 percent chrome stainless steel solid disc and seats. Provide 25 mm (1 inch) factory installed bypass with globe valve on valves 100 mm (4 inches) and larger.

· All other services: Forged steel body, Class B, rated for 850 kPa (123 psig) saturated steam, 1380 kPa (200 psig) WOG, bronze or bronze face wedge and seats, 850 kPa (123 psig) ASME flanged ends, OS&Y, rising stem, bolted bonnet, and renewable seat rings.

· Globe and Angle Valves: o Globe Valves:

· 50 mm (2 inches) and smaller: Forged steel body, rated for 1380 kPa (200 psig) saturated steam, 2758 kPa (400 psig) WOG, hardened stainless steel disc and seat, threaded ends, rising stem, union bonnet, and renewable seat rings.

· 65 mm (2-1/2 inches) and larger:

· Globe valves for high pressure steam 110 kPa (16 psig): Cast steel body, ASTM A216/A216M grade WCB, flanged, OS&Y, 1035 kPa (150 psig) at 260 degrees C (500 degrees F), 11- 1/2 to 13 percent chrome stainless steel disc and renewable seat rings.

· All other services: Steel body, rated for 850 kPa (123 psig) saturated steam, 1380 kPa (200 psig) WOG, bronze or bronze-faced disc (Teflon or composition facing permitted) and seat, 850 kPa (123 psig) ASME flanged ends, OS&Y, rising stem, bolted bonnet, and renewable seat rings.

· Angle Valves:

· 50 mm (2 inches) and smaller: Cast steel 1035 kPa (150 psig), union bonnet with metal plug type disc.

· 65 mm (2-1/2 inches) and larger:

· Angle valves for high pressure steam 110 kPa (16 psig): Cast steel body, ASTM A216/A216M grade WCB, flanged, OS&Y, 1035 kPa (150 psig) at 260 degrees C (500 degrees F), 11- 1/2 to 13 percent chrome stainless steel disc and renewable seat rings.

· All other services: 861 kPa (125 psig), flanged, cast steel body, and bronze trim.

· Swing Check Valves:

· 50 mm (2 inches) and smaller: Cast steel, 1035 kPa (150 psig), 45-degree swing disc.

· 65 mm (2-1/2 inches) and Larger:

· Check valves for high pressure steam 110 kPa (16 psig) and above system: Cast steel body, ASTM A216/A216M grade WCB, flanged, OS&Y, 1035 kPa (150 psig) at 260 degrees C (500 degrees F), 11- 1/2 to 13 percent chrome stainless steel disc and renewable seat rings.

· All other services: 861 kPa (125 psig), flanged, cast steel body, and bronze trim.

If any dissimilar metals are noticed, dielectric fittings shall be used as follows:

· Provide where dissimilar metal pipe are joined.

· 50 mm (2 inches) and Smaller: Threaded dielectric union.

· 65 mm (2-1/2 inches) and Larger: Flange union with dielectric gasket and bolt sleeves, ASME B16.42.

· Temperature Rating, 121 degrees C (250 degrees F) for steam condensate and as required for steam service.

· Contractor’s option: On pipe sizes 50 mm (2 inches) and smaller, screwed end steel gate valves (or dielectric nipples) may be used in lieu of dielectric unions.

The period of performance for this work is 180 calendar days after NTP has been issued to the contractor to begin the work. The period of performance can be adjusted as needed to support the work. Upon notification to the contracting officer a no cost extension can be granted to the contract.

5.0 PERFORMANCE REQUIREMENTS

· All work is to be completed with minimal disturbance to the Medical Center and close coordination will be required with the VA COR.

· All tools must always be kept in eye contact, when workers are taking breaks or leaving the site, tools must be secured.

· All work shall be performed off hours with 2 weeks given to the COR and CO to allow for proper planning involving the shutdown(s).

· Work can occur during normal business hours, excluding Federal holidays (M-F, 7am- 4:30pm)

· Some work will need to be performed after hours (M-F, 5pm- 5:00am, and Saturday and Sunday all day)

· All work shall be in accordance with this scope of work.

· Contractor shall comply in accordance with all OSHA Construction Safety Guidelines

· The contractor shall have the capability of producing electronic documents that shall be able to interface with the systems used by the VA, Facilities Management Service (FMS) at the VAMC- Manchester. The contractor shall submit electronic copies of all drawings, documents, and submittals via email whenever possible to the Contracting Officer (CO) or Contracting Officer’s Representative (COR).

· Proposed schedule for completion of work

· Safety Data Sheets (SDS’s) must be submitted to the COR for approval for all hazardous materials before they are brought to the work site.

6.0 WARRANTY

All work shall be warranted for a period of one year, as specified under Warranty of Construction FAR clause 52.246-21, to be free of any defect in equipment, material, or design furnished, or workmanship performed by the Contractor or any subcontractor or supplier at any tier.

Contractor shall also, as specified under Warranty in FAR clause 52.246-21, obtain all warranties that would be given in normal commercial practice executed, in writing, for the benefit of the Government.

This contract shall be subject to all parts of FAR clause 52.246-21 and its Alternate I.

***END OF THIS SCOPE OF WORK***

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