P/V Vent With Flame Arrestor

P/V Vent With Flame Arrestor

Defender Series® Pressure/Vacuum (P/V) vents regulate the pressure at which vapor is allowed to escape from the underground storage tank and the vacuum at which outside air is allowed to enter the tank. The P/V vent’s internal rolling diaphragm delivers consistent and controlled cracking for both low leak and high-pressure conditions while the superior construction of UV-resistant materials extends the overall service life. The in-line vault provides added protection and facilitates at-grade servicing and testing. This eliminates the added expense of lift trucks as well as the potential safety concerns of conducting work at height.

SUPERIOR QUALITY, SAFE SERVICING, MINIMAL MAINTENANCE

With typical Pressure/Vacuum (P/V) vents only lasting a single 3-year test cycle, Defender Series® P/V vents are built to outlast other vents in their class. With high-grade, UV-resistant materials and premium internal components, Defender Series® P/V vents provide precision regulation of storage tank pressure for the long-haul.

TECHNICAL ADVANTAGES

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In-Line Vault

The in-line vault allows for safe, cost-effective grade level testing and maintenance while also providing extreme protection from the outdoor elements.

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Grade Level Maintenance

The in-line vault promotes safety for the service technician by bringing the P/V vent down to grade level.

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PREMIUM TANK VENTING

Defender Series® P/V vents regulate the pressure at which vapor is allowed to escape from the underground storage tank and the vacuum at which outside air is allowed to enter the tank. Check out these premium design highlights.

PV Vent - Premium Tank Venting.psd

Debris Screen & Rain Cover

A stainless steel wire mesh debris screen keeps dirt, insects, and animals from disrupting the venting system. The rain cover protects vent lines and storage tanks from water intrusion.

Inlet Screen

An internal inlet screen protects the P/V vent from tank debris.

One-Turn Locking Mechanism

The one-turn locking mechanism provides easy installation and removal for servicing.

Compatibility

P/V vents are compatible with all fuel types and manifolded applications, UL2583 listed, and meet the requirements of EPA 40 CFR part 63 for gasoline dispensing facilities.

PV Vent - Grade Level Wide.psd
BRING TANK VENTING IN-LINE

Almost half of all injuries in our industry come from falls at height. The in-line vault allows for safe, cost-effective grade level testing and maintenance while also providing extreme protection from the outdoor elements.

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Solid Construction

The cast iron construction, tamper-resistant security bolts, and stainless steel faceplate guard the P/V vent from weather and tampering while placing it at grade level.

Easy Access

The stainless steel gasketed faceplate includes a swivel pin that holds it in place during service.

Drain Plug

An integrated drain plug facilitates draining of condensate.

Rain Cap

The in-line vault utilizes a UV-resistant Vent (rain) Cap with a stainless steel mesh debris shield for the top of the vent stack.

VERSATILE INSTALLATION CAPABILITES

Install in-line at grade with the vault and rain cap or end-of-line with the Defender Series® vent stack adapter.

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In-Line Vent Stack Application

Install in-line at grade with the in-line vault and rain cap.

End-of-Line Application

Install end-of-line with the Defender Series® vent stack adapter

AVAILABLE TO MEET LOCAL CODES

These three models are designed to meet the cracking pressure requirements for regions following the US, UK, and China standards. These models also are designed to incorporate a flame arrestor for regions requiring this option (sold seperately).

PV Vent - Flame - US.psd

US Model

6.2 to 14.9 mbar pressure setting, -14.9 to 24.9 mbar vacuum setting. 

PV Vent - Flame - UK.psd

UK Model

35 mbar maximum pressure setting, -2 mbar maximum vacuum setting. 

PV Vent - Flame - CH.psd

China Model

20 to 30 mbar pressure setting, -15 to -20 mbar vacuum setting. 

General

  • Pressure setting:
    • US model: 6.2 to 14.9 mbar
    • UK model: 35 mbar maximum
    • CN model: 20 to 30 mbar
  • Vacuum setting:
    • US model: -14.9 to 24.9 mbar
    • UK model: -2 mbar maximum
    • CN model: -15 to -20 mbar
  • Pressure leak rate: ≤ .05 CFH at +2" WC
  • Vacuum leak rate: ≤ .21 CFH at -4" WC
  • Maximum flow rate: 8,000 SCFH at 2 PSI
  • Operating temperature: -22° to 122° F (-30° to 50° C)

Components

  1. P/V vent
  2. Rain cap
  3. In-line vault
  4. In-line vault faceplate
  5. Defender Series® vent stack adapter
  6. Flame Arrestor option (fits both adapters and vault applications with 804101 P/V vent models)
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Dimensions

PV Vent Flame Dims.psd

Materials

  • P/V vent body: UV-resistant polymer
  • Seals: UL Listed elastomers
  • Screens: Stainless steel
  • Rain cap: UV-resistant polymer
  • In-line vault body: E-coated cast ductile iron
  • In-line vault cover: Stainless steel

Approvals/Certifications

  • UL2583 listed.
  • Three models to meet the cracking pressure requirements for regions following the US, UK, and China standards.
  • Flame Arrestor meets EN ISO 16852.

In-LineVault

Model Number Description
804110909 Vault Assembly with 2" NPT Inlet/Outlet threads
804110910 Vault Assembly with 2" BSPT Inlet/Outlet threads
  • Vault Assembly includes vault body, cover, cover seal, and cover fasteners only (P/V Vent Valve, Vent (rain) Cap, and Flame Arrestor options sold separately)

P/V Vent Valves

Model Number Description
804101901 P/V Vent Valve with US cracking pressures
804101902 P/V Vent Valve with UK cracking pressures
804101903 P/V Vent Valve with CN cracking pressures
  • P/V Vent Valves include vent valve, sealing o-ring, and inlet screen only (Adapters, Vaults, and Flame Arrestor options sold separately).

Adapters & Replacement Parts

Model Number Description
804110906 End of Line Adapter with 2" NPT Inlet threads
804110907 End of Line Adapter with 2" BSPT Inlet threads
804110908 Flame Arrestor Kit (includes arrestor and replacement P/V sealing o-ring)
804110902 Vault faceplate gasket
804110903 (2) replacement tamper-resistant screws for vault faceplate
804110905 Vault L-key wrench (T40 tip size)
804110904 Vault service plug, prevents vapors from escaping during maintenance
804023901 Vent (rain) cap