Post Indicator Valves Boston: UL 789/FM 1110 Listed PIV and PIVA for BFD-Accepted NFPA 24 Private Fire Service Mains

Post Indicator Valves Boston: UL 789 Listed and FM 1110 Approved Post Indicator Valve Assemblies, Wall PIVs and Tamper-Supervised Private Fire Service Mains for Logan Airport, Harvard/MIT/Longwood Campuses, Kendall Square Biotech and Boston Metro Data Centers

ValveAtlas supplies UL 789 Listed, FM Class 1110 Approved post indicator valves (PIVs), post indicator valve assemblies (PIVAs), wall PIVs, roadway box operators and tamper-supervised indicator posts to fire protection contractors, civil underground trades, consulting engineers and general contractors across Boston, Cambridge, Somerville, Quincy, Brookline, Newton, Waltham, Worcester and Springfield. New England metro delivery, factory-coated ductile-iron bodies, frost-protected extension stems for New England winter, 780 CMR Chapter 9 submittals and Boston Fire Department (BFD) approval packages.

This page is the technical reference for Boston specifying engineers, mechanical contractors, sprinkler installers and civil underground contractors selecting PIV packages for Logan Airport (BOS) fire mains, Harvard, MIT, Boston University, Northeastern, Tufts campus loops, Longwood Medical Area hospital campus mains, Kendall Square biotech incoming mains and any NFPA 24 private fire service main application, governed by 780 CMR (Massachusetts State Building Code) Chapter 9, 527 CMR 1.00 (MA Board of Fire Prevention Regulations), NFPA 24, NFPA 13 Chapter 16, UL 789 and FM 1110.

Post indicator valve range for Boston projects

Type	UNIVAL SKU	Size	Max working pressure	Listings	Typical Boston application
PIV complete assembly	UVPIV-6-PIVA	6 inch NPS	250 psi	UL 789, FM 1110	Longwood hospital loop, Kendall biotech incoming main
PIV complete assembly	UVPIV-8-PIVA	8 inch NPS	250 psi	UL 789, FM 1110	Harvard and MIT campus loop, Logan airside fire main
PIV complete assembly	UVPIV-10-PIVA	10 inch NPS	250 psi	UL 789, FM 1110	Everett Marine Terminal, district energy fire loop
Wall PIV (WPIV)	UVPIV-6-WPIV	6 inch NPS	250 psi	UL 789, FM 1110	Seaport District, Fan Pier tight-site retrofit
Roadway box PIV	UVPIV-6-RB	6 inch NPS	250 psi	UL 789, FM 1110	Logan apron, Port of Boston paved surface
Indicator post only	UVPIV-IP	Adjustable 3 to 12 ft bury	N/A	FM 1110	Retrofit to existing gate valve on fire main
Tamper switch kit	UVPIV-TS	All sizes	24 VDC	UL 753	Supervisory tamper switch per NFPA 72 Section 17.16
Extension stem kit	UVPIV-EXT	Variable	N/A	UL 789	Frost protection for New England -10 F winter bury depth

Why Boston contractors choose ValveAtlas post indicator valves

UL 789 and FM 1110 dual listing for BFD acceptance. Every UNIVAL post indicator valve is UL 789 Listed (indicator posts for fire service) and FM Class 1110 Approved. BFD accepts listed PIVs with factory submittal, 780 CMR Chapter 9 compliance letter and NFPA 24 Chapter 6 private fire service main documentation.

Ductile iron body with fusion-bonded epoxy. UVPIV bodies are ductile iron ASTM A536 Grade 65-45-12 with factory-applied fusion-bonded epoxy coating per AWWA C550, rated for direct bury in Boston metro glacial till, fill and corrosive coastal soil. Stainless steel stem, EPDM resilient seat and bronze operating nut rated for 250 psi working pressure.

Frost-protected extension stems for New England winter. UVPIV-EXT extension stem kits sized for Boston metro frost line (48 inches bury minimum per Boston Water and Sewer Commission and MA DEP standards). Telescoping operator stem and indicator window prevents freeze-up for reliable OPEN/SHUT indication through New England -10 F winters.

Tamper-supervised with UL 753 switch. UVPIV-TS tamper switch kit UL 753 Listed, 24 VDC, compatible with BFD-approved fire alarm panels (Notifier, Siemens, Honeywell, Edwards, Gamewell-FCI) per NFPA 72 Section 17.16 supervisory signal requirements. Factory-wired to indicator post for BFD fire alarm acceptance per 527 CMR 1.00.

Coastal corrosion resistance. Fusion-bonded epoxy coating rated for aggressive coastal soil chloride exposure in Seaport District, Fan Pier, Revere Beach, Port of Boston and Everett Marine Terminal. 316 stainless hardware and EPDM seals resist salt spray and marine atmosphere.

Direct substitution for Kennedy, Clow, Mueller, M&H and AVK. UNIVAL UVPIV-6-PIVA, UVPIV-8-PIVA and UVPIV-10-PIVA are UL 789/FM 1110 listed equivalent to Kennedy K81, Clow F-5850, Mueller A-20806, M&H 129 and AVK series 01/80. BFD accepts listed equivalent substitutions with engineer-of-record approval and factory submittal package.

Code and listing acceptance for Boston

780 CMR Chapter 9 (MA Building Code). 780 CMR Chapter 9 adopts IBC Chapter 9 with MA amendments for fire protection systems. Section 903.3.5 water supplies for sprinkler systems references NFPA 13 and NFPA 24. PIV isolation required on sprinkler incoming main and hydrant/standpipe feed.

527 CMR 1.00 (MA Board of Fire Prevention). 527 CMR 1.00 adopts NFPA 1 Fire Code with MA amendments. Requires UL 789/FM 1110 listed PIVs with tamper supervision per NFPA 72. UVPIV UNIVAL ships 527 CMR compliant.

NFPA 24 private fire service mains. NFPA 24 Chapter 6 governs Boston PIV selection, installation and supervision. Section 6.3.3 requires OS&Y or indicator post valves on private fire service mains. Section 6.2.9.4 requires supervision per NFPA 72. UNIVAL UVPIV ships NFPA 24 compliant.

Boston Water and Sewer Commission (BWSC) standards. BWSC Water Service Connection Regulations for fire service tap from municipal main. Backflow prevention (DCDA or RPDA) and isolation PIV required at property line per BWSC Rules. UVPIV-6-PIVA and UVPIV-8-PIVA satisfy BWSC requirements.

MA Fire Code supervision requirements. 527 CMR and NFPA 72 Section 17.16.2 require tamper switches on all control valves of sprinkler systems. UVPIV-TS UL 753 tamper switch factory-wired for addressable SLC loop compatibility with Notifier NFS2-3030, Siemens FireFinder XLS, Honeywell FS250, Edwards EST3, Gamewell-FCI E3.

Kennedy, Clow, Mueller, M&H, AVK substitution for Boston projects

Kennedy K81 and 4950 series PIV. Substitute UVPIV-6-PIVA, UVPIV-8-PIVA or UVPIV-10-PIVA at matching size. Same UL 789/FM 1110 listing, ductile iron body with fusion-bonded epoxy, resilient wedge gate valve with bronze stem. Boston standard brand substitution.

Clow F-5850 and F-5840 post indicator. Substitute UVPIV-6-PIVA or UVPIV-8-PIVA at matching duty. Same vertical indicator post with adjustable extension stem for Boston metro 48 inch bury requirements.

Mueller A-20806 and A-2360 series. Substitute UVPIV-6-PIVA, UVPIV-8-PIVA or UVPIV-10-PIVA. Matching resilient wedge construction with UL 789 indicator post assembly. Common BFD-approved substitution for Longwood, Kendall and Seaport work.

M&H 129 and 4067 series. Substitute UVPIV-6-PIVA or UVPIV-8-PIVA at matching size and working pressure. Same 250 psi rating and AWWA C515 compliance.

AVK Series 01/80 resilient seated gate valve with indicator post. Substitute UVPIV-6-PIVA or UVPIV-8-PIVA. Matching EPDM resilient seat, ductile iron body and UL/FM listing.

Installation scenarios for Boston private fire service mains

Logan Airport BOS and Hanscom Field fire mains. Massport airside fire mains feeding Logan Terminal A/B/C/E, cargo ramps, Delta Sky Club and maintenance hangars with UVPIV-8-PIVA and UVPIV-10-PIVA at airside/landside boundary isolation. Freeze-protected extension stems for New England winter exposure and coastal salt corrosion resistance.

Longwood Medical Area hospital campus mains. Brigham and Women’s, Dana-Farber, Boston Children’s, Beth Israel Deaconess, Massachusetts General Hospital (MGH), Tufts Medical Center campus fire loops with UVPIV-6-PIVA and UVPIV-8-PIVA at building feeds and campus isolation. Tamper-supervised per NFPA 24 Section 6.2.9.4, monitored at LMA central fire alarm command center.

Harvard, MIT, BU, Northeastern, Tufts campus fire mains. Harvard Cambridge and Allston, MIT Cambridge campus, Boston University Charles River campus, Northeastern, Tufts Medford campus fire loops with UVPIV-6-PIVA and UVPIV-8-PIVA at academic building isolation. BFD, Cambridge Fire Department and Medford Fire Department approvals.

Kendall Square biotech incoming mains. Moderna, Biogen, Vertex, Alexion, Takeda, Sanofi, Novartis, Pfizer, Genzyme Cambridge Kendall Square R&D fire mains with UVPIV-6-PIVA on biotech R&D building sprinkler and separate PIV on cleanroom and vivarium clean agent loops.

Seaport District and Fan Pier data center/office fire mains. Massachusetts Eye and Ear, Vertex 50 Northern Ave, Boston Consulting Group, Fidelity, State Street, Wayfair Seaport District fire mains with UVPIV-6-PIVA and wall-mounted UVPIV-WPIV for tight-site urban retrofits.

Everett Marine Terminal and Port of Boston. Everett Marine Terminal LNG/LPG berth, Conley Terminal container port and South Boston energy fire mains with UVPIV-8-PIVA and UVPIV-10-PIVA. FM Global and NFPA 30 compliant for marine terminal fire protection.

Frost protection and winter installation for New England

Minimum bury depth. BWSC and MA DEP standards require minimum 48 inches (1.22 m) bury depth for municipal water mains and 42 inches for private fire service mains below grade. UVPIV-EXT extension stem kits accommodate 3 to 12 ft operator stem length for standard Boston metro installations.

Telescoping operator stem. UVPIV operator stem is non-rising telescoping design with stainless steel drive pin and bronze operating nut. Open/Shut indicator window glazed with polycarbonate rated for -40 F to +140 F operation.

Frost break design. Factory-installed frost break at indicator post base prevents ice wedging during New England freeze/thaw cycles. Epoxy-coated cast iron post with weep hole drainage for condensation management.

Salt and de-icer corrosion. Fusion-bonded epoxy coating AWWA C550 and 316 stainless hardware resist MassDOT road salt, calcium chloride and magnesium chloride de-icers common on Logan airside, I-90/I-93/I-95 service areas and Boston DPW streets.

Related products for complete Boston private fire service main package

Fire pumps. UVFP-HSC, UVFP-ES and UVFP-VIL fire pumps to feed private fire service mains per NFPA 20 and NFPA 24 Chapter 7. See Fire Pumps Boston.

Butterfly valves. UVB-G310 grooved butterfly with integral tamper for indoor sprinkler control valve applications. See Butterfly Valves Boston.

Gate valves. UVG-OS&Y rising stem gate valves for indoor sprinkler control per NFPA 13 Section 16.9.3. See Gate Valves Boston.

Check valves. UVC-NR silent-closure check valves for fire pump discharge and backflow prevention. See Check Valves Boston.

Frequently asked questions (Boston)

Is UNIVAL accepted by BFD? Yes. UNIVAL post indicator valves are UL 789 Listed and FM 1110 Approved. BFD accepts listed PIVs with factory submittal, 780 CMR Chapter 9 compliance letter and NFPA 24 Chapter 6 private fire service main documentation.

Do I need a PIV on my sprinkler incoming main? NFPA 13 Section 16.9.3 requires the sprinkler control valve on the incoming main be an indicator post, OS&Y, listed butterfly or listed equivalent. For outdoor underground main, the standard Boston solution is a UVPIV-6-PIVA or UVPIV-8-PIVA.

What about direct bury vs roadway box on Logan apron? Logan airside apron installations use UVPIV-6-RB roadway box PIV with curb valve operator and marker plate to accommodate aircraft and ground support equipment traffic. Landside parking and green lawn zones use UVPIV-PIVA direct bury.

Wall PIV for Seaport District tight sites? Wall PIV (UVPIV-WPIV) mounts to exterior building wall for tight-site Seaport, Fan Pier and Financial District retrofits where yard installation is not feasible. Same UL 789/FM 1110 listing with wall-mounted indicator window.

What is the delivery time to Boston? Factory-assembled UVPIV-PIVA ships 3 to 4 weeks from order. Stock UVPIV-6-PIVA and UVPIV-8-PIVA ship 1 to 2 weeks. Truck freight from Toronto HQ to Boston metro 2 to 3 business days.

How do I substitute Kennedy or Clow on a Boston project? Submit substitution letter with UNIVAL UL 789/FM 1110 certificates, factory submittal drawing and NFPA 24 Chapter 6 compliance. Engineer-of-record approval follows; BFD accepts listed equivalent substitutions per 780 CMR and 527 CMR.

Contact ValveAtlas for Boston post indicator valve quotation

For PIV and PIVA quotations, Kennedy K81, Clow F-5850, Mueller A-20806, M&H 129 or AVK 01/80 substitution submittals for BFD approval, or factory-assembled NFPA 24 Chapter 6 private fire service main packages with tamper supervision and frost-protected extension stems for Logan Airport airside, Longwood Medical Area hospitals, Harvard/MIT campus, Kendall Square biotech or Seaport District data center projects, email the project civil drawings, bury depth, pipe size and fire alarm panel matrix to burakpadr@gmail.com or use the contact form. Same-day response on Boston urgent orders.