40 73 13 - Pressure and Differential Pressure Gauges.pdf
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- Attached to
- Skytop Lodge Sewage Treatment Plant Improvements Project – Contract : 2026-01- Project Number 005153. 0436
- Solicitation number
- Not on record
- Issued by
- Monroe County, Pennsylvania
About this file
This is a technical specification document for pressure and differential pressure gauges required for the Skytop Lodge Sewage Treatment Plant Improvements Project (Project Number 005153.0436) in Pennsylvania. The project encompasses sewage treatment plant upgrades including installation of an influent screening system, equalization tank, chemical feed system, two clarifier tanks, a post aeration tank, a UV disinfection system, and associated work. The specification establishes requirements for pressure gauges with 2.5-inch photo-luminescent dials, weatherproof liquid-filled cases constructed from phenolic or Pocan thermoplastic materials, and Bourdon tube measuring elements made of stainless steel. Approved manufacturers include Ametek US Gauge, Ashcroft Inc., and Omega Engineering, Inc., with substitutions permitted under Section 01 61 00. The pre-bid conference is scheduled for August 25, 2026 at 10:30 AM at Skytop Lodge STP in Canadensis, Pennsylvania, with bid opening on Friday, September 18, 2026 at 10:00 AM through PennBid. Bid security in the form of a certified check or bid bond is required in an amount not less than 10%, with all questions and notifications to be submitted via the PennBid platform.
The specification requires gauges to comply with ASME B40.100 standards and materials in contact with potable water must be certified to NSF 61 and NSF 372 standards. Measuring elements must achieve accuracy within plus or minus 0.5 percent of full-scale range. Connections shall be located at the bottom with 1/2-inch NPT male threads and brass forging sockets extending minimum 1.25 inches below the gauge cases. Gauges must include pressure snubbers constructed of Type 316 stainless steel with isolation valves, removable rear plates, and clear shatterproof glass windows with gaskets. Manufacturers must demonstrate minimum three years of documented experience in producing specified products. Shop inspection and testing of completed assemblies, along with demonstration of equipment startup, shutdown, routine maintenance, and emergency repair procedures to Owner's personnel, are required prior to project completion.
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Text version
40 73 13 - PRESSURE AND DIFFERENTIAL PRESSURE GAUGES
Herbert, Rowland & Grubic, Inc. 40 73 13 - 1 005153.0436
SECTION 40 73 13 - PRESSURE AND DIFFERENTIAL PRESSURE GAUGES
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes: Pressure gages.
B. Related Requirements:
1. Section 43 05 20 - Common Work Results for Liquid Handling Equipment:
Pressure measurement and control requirements as specified in this Section.
1.2 REFERENCE STANDARDS
A. ASME International:
1. ASME B40.100 - Pressure Gauges and Gauge Attachments.
B. NSF International:
1. NSF 61 - Drinking Water System Components - Health Effects.
2. NSF 372 - Drinking Water System Components - Lead Content.
1.3 COORDINATION
A. Section 01 31 13 – Project Coordination: Requirements for coordination.
B. Coordinate Work of this Section with piping Work pump installation.
1.4 SUBMITTALS
A. Section 01 33 00 - Submittal Procedures: Requirements for submittals.
B. Product Data: Submit manufacturer information for system materials and component equipment, including connection requirements.
C. Shop Drawings:
1. Indicate system materials and component equipment.
2. Submit installation requirements and other details.
D. Manufacturer's Certificate: Certify that products meet or exceed specified requirements.
E. Source Quality-Control Submittals: Indicate results of factory tests and inspections.
F. Qualifications Statement:
1. Submit qualifications for manufacturer.
1.5 CLOSEOUT SUBMITTALS
A. Section 01 77 00 - Closeout Procedures: Requirements for submittals.
Herbert, Rowland & Grubic, Inc. 40 73 13 - 2 005153.0436
B. Project Record Documents: Record actual locations of equipment and accessories.
1.6 MAINTENANCE MATERIAL SUBMITTALS
A. Section 01 78 23 – Operations & Maintenance Data: Requirements for maintenance materials.
1.7 QUALITY ASSURANCE
A. Ensure that materials of construction of wetted parts are compatible with process liquid.
B. Materials in Contact with Potable Water: Certified to NSF 61 and NSF 372.
1.8 QUALIFICATIONS
A. Manufacturer: Company specializing in manufacturing products specified in this Section with minimum three years' documented experience.
1.9 DELIVERY, STORAGE, AND HANDLING
A. Section 01 61 00 - Product Requirements: Requirements for transporting, handling, storing, and protecting products.
B. Inspection: Accept materials on Site in manufacturer's original packaging and inspect for damage.
C. Store materials according to manufacturer instructions.
D. Protection:
1. Protect materials from moisture and dust by storing in clean, dry location remote from construction operations areas.
2. Provide additional protection according to manufacturer instructions.
PART 2 - PRODUCTS
2.1 PRESSURE GAGES
A. Manufacturers:
1. Ametek US Gauge
2. Ashcroft Inc.
3. Omega Engineering, Inc.
4. Or Equal.
5. Substitutions: As specified in Section 01 61 00 - Product Requirements.
B. Type: Pressure.
C. Dials:
1. Nominal Diameter: 2-1/2 inches.
2. Face: Photo-luminescent with black graduations.
3. Scale: Extend over arc not less than 270 degrees.
Herbert, Rowland & Grubic, Inc. 40 73 13 - 3 005153.0436
4. Ranges and Graduation Units: As required.
D. Cases:
1. Weatherproof, Liquid filled.
2. Material: Phenolic or Pocan Thermoplastic.
3. Type: Blowout protected.
4. Blowout Disc Encasement Material: Phenolic or Pocan Thermoplastic.
5. Provide removable rear plate.
6. Windows:
a. Material: Clear, shatterproof glass.
b. Thickness: 1/8 inch.
c. Provide gasket.
E. Connection:
1. Location: Bottom.
2. Socket:
a. 1/2-inch NPT male thread.
b. Material: Brass forging.
c. Extend minimum 1-1/4 inches below gage cases.
d. Provide wrench flats.
3. Mounting: As indicated on Drawings.
F. Measuring Element:
1. Bourdon Tubes:
a. Material: Stainless steel.
b. Provide welded, stress-relieved joints.
2. Accuracy:
a. Comply with ASME B40.100.
b. Plus and minus 0.5 percent of full-scale range.
G. Adjustment:
1. Provide for zero-reading adjustment.
2. Adjusting Screws: Accessible from rear of case without need for disassembly.
H. Accessories:
1. Pressure Snubber:
a. Material: Type 316 stainless steel.
b. Provide isolation valve.
2. Shutoff Cocks: Furnished by gage manufacturer.
2.2 SOURCE QUALITY CONTROL
A. Section 01 40 00 - Quality Requirements: Requirements for testing, inspection, and analysis.
B. Provide shop inspection and testing of completed assembly.
Herbert, Rowland & Grubic, Inc. 40 73 13 - 4 005153.0436
PART 3 - EXECUTION
3.1 EXAMINATION
A. Section 01 73 00 - Execution Requirements: Requirements for installation examination.
B. Verify that items provided by other Sections of Work are ready to receive Work of this Section.
3.2 INSTALLATION
A. According to manufacturer instructions.
B. Coordinate location and orientation of gages and seal assemblies with final piping and equipment installations.
C. Ensure that gages are located to be easily read during operation and easily accessible for maintenance.
3.3 FIELD QUALITY CONTROL
A. Section 01 40 00 - Quality Requirements: Requirements for inspecting and testing.
B. Equipment Acceptance:
1. Adjust, repair, modify, or replace components failing to perform as specified and rerun tests.
2. Make final adjustments to equipment under direction of manufacturer's representative.
3.4 DEMONSTRATION
A. Section 01 73 00 - Execution Requirements: Requirements for demonstration and training.
B. Demonstrate equipment startup, shutdown, routine maintenance, and emergency repair procedures to Owner's personnel.
END OF SECTION
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