P/V Vent With In-Line Vault

P/V Vent With In-Line Vault

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.

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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, providing precision regulation of storage tank pressure for the long-haul.


Premium Construction

The P/V vent is constructed of high-grade, UV-resistant materials and premium internal components designed and tested to last.

Grade-Level Service

The game-changing protective in-line vault facilitates safe and cost-effective grade-level maintenance and testing.

Reduce Costs

Minimize maintenance costs by eliminating the need for expensive lift trucks for testing and servicing.

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.

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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.

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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 includes a UV-resistant rain cap with a stainless steel mesh debris shield for the top of the vent stack.

PRECISION ROLLING DIAPHRAGM

Ensure your tank venting system is tight and dependable in any pressure condition. The premium construction of the internal rolling diaphragm delivers consistent and controlled cracking for both low leak and high-pressure conditions.

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Vacuum Cracking

Vacuum pressure causes the poppet to pull away from its upper seal, letting air in to rebalance the tank pressure.

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Pressure Cracking

Vapor pressure in the tank pushes the poppet away from its lower seal, letting vapor out to rebalance tank pressure.

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Over-Pressure Cracking

For high pressure cracking scenarios, the rolling diaphragm allows the poppet to open even further to let a larger volume of vapor out of the tank.

REPLACEMENT-READY

Defender Series®  P/V vents are dual-threaded, making them easy to swap out with existing 2” P/V vents. The standard size hex nut integrated into the top of the rain cap makes installation with a standard wrench simple –no specialized tools required.

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Replacement

The internal female threads are compatible with OPW® vent stack adapters for easy retrofit onto existing sites as well as most common test devices.

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New or Retrofit

Defender Series® P/V vents come with an included vent stack adapter which threads easily on to a 2” vent stack for new or retrofit applications.

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. The P/V vent is also compatible for retrofit onto existing OPW® vent stack adapters.

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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

OPW® Retrofit Upgrade Application

Compatible for retrofit onto existing OPW® vent stack adapters.

General

  • Pressure setting: 2.5" to 6.0" WC
  • Vacuum setting: -6.0" to -10.0" WC
  • 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. OPW® vent stack adapter (not available for purchase)
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Dimensions

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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.
  • Meets the requirements of EPA 40 CFR part 63 for Gasoline Dispensing Facilities

In-Line Tank Venting

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

Part Number Description
DPVV

(1) Defender Series® P/V vent with (1) In-line vault and (1) rain cap

End-of-Line Tank Venting

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

Part Number Description
804100901

Defender Series® P/V vent, and Defender Series®  2"  vent stack adapter

Retrofit & Replacement Parts

Order a P/V vent compatible with OPW® P/V vent adapters to retrofit existing OPW® vent stack adapters.

Part Number Description
804023901

Vent cap

804100930

Defender Series® P/V vent (includes O-rings for both Defender Series® and OPW® vent stack adapters)

804110901

Maintenance kit includes inlet screen (includes O-rings for both Defender Series® and OPW® vent stack adapters)

804110902

Vault faceplate gasket

804110903

(2) replacement tamper-resistant screws for vault faceplate

804110904

Vault service plug, prevents vapors from escaping during maintenance

804110905

Vault L-key wrench (T40 tip size)