Skip to content
English (865) 486-4003|Spanish (865) 486-4001
(865) 486-4003
partsnow.ai + TalkRev
CatalogTrucksGuides
|Brakes & Wheel EndAir SystemElectrical & LightingEngineFiltrationTrailer PartsAll Parts →

Cart

partsnow.ai + TalkRev

AI-powered truck and trailer agentic commerce platform. 50,000+ parts from trusted dealers.

English (865) 486-4003 Spanish (865) 486-4001 support@partsnow.ai1901 Sutherland Avenue
Knoxville, TN 37921

Categories

  • Brakes & Wheel End
  • Air System
  • Electrical & Lighting
  • Engine
  • Filtration
  • Suspension & Steering
  • Trailer Parts
  • Drivetrain

Resources

  • Catalog
  • VIN Lookup
  • Buying Guides
  • Visual Part ID
  • About
  • Contact

Policies

  • Shipping Policy
  • Return Policy
  • Terms of Service
  • Privacy Policy
© 2026 partsnow.ai. All rights reserved.partsnow.ai is operated by Post Equipment, Inc.
VISAMCAMEXDISCOVER
|Secured by Stripe
Home/parts/Air System/PV26363ALB
Back to catalog
PV26363ALB - OUTBREATHING VAPOR VENT

Image is for illustration purposes only. Actual part may vary.

Betts IndustriesAir SystemIn Stock

PV26363ALB

OUTBREATHING VAPOR VENT

This is a spring-loaded outbreathing vapor vent designed for tank trailers and trucks with vapor recovery systems. It provides emergency pressure relief if the primary recovery line becomes closed or blocked during bottom loading, protecting the tank from overpressure. The vent mounts to a standard 4-inch TTMA flange and begins opening at 1 psig, with a venting capacity of 51,000 cubic feet per hour at 3 psig. Its body is aluminum, the sealing disc is Buna-N rubber, and the stem is stainless steel, making it compatible with petroleum and chemical vapors.

$242.03
Free Pickup Ships nationwide (3–7 days) 30-Day Returns Secure Checkout

Verified fitment

  • Tank trailers and trucks with 4-inch TTMA flange vapor recovery systems
  • Bottom-loading tankers requiring auxiliary overpressure protection

Requires a 4-inch TTMA mounting flange and, if installed inside a tube, a minimum tube inner diameter of 4.375 inches. Not vehicle-specific; fits any tank meeting the flange standard.

Specifications

SKUPV26363ALBBrandBetts IndustriesSupplierPost OnsiteCategoryAir SystemAvailabilityIn StockOpening Pressure1 psigVenting Capacity51,000 cu ft/hr @ 3 psigThrough Area6 sq inBody MaterialAluminumDisc MaterialBuna-N (Nitrile)Stem MaterialStainless SteelSpring MaterialSteel, e-coatedDisc Travel2 inHeight (dimension A)3 3/8 inWidth (dimension C)3 1/4 inFlange Outer Diameter6 5/8 inBolt Circle5 7/8 in

Cross-References / Interchange

4930-01-573-6804 (NSN)
Supplier information

Part Number: PV26363ALB

OUTBREATHING VAPOR VENT

Unit: ea

Dealer: Post Onsite

Ask about this part

Compatibility, alternatives, and more

Complete the Job

Parts commonly needed alongside air system

25107330In StockHardware & Fasteners
McMahon Truck Center

25107330

STUD

$26.63
SA-245825H-SPIn StockBrakes & Wheel End
KP Services Crossville

SA-245825H-SP

24.5 ALUMINUM WHEEL

$394.60
750.22254-klIn StockHardware & Fasteners
KP Services Crossville

750.22254-kl

LOCK NUT

$13.24
179.YK5816In StockBrakes & Wheel End
KP Services Crossville

179.YK5816

CLEVIS

$24.19

Related Parts

View all
TRA32302-106In StockAir System
KP Services Crossville

TRA32302-106

HOSE ASSY. SLIDER 1/2X106

$51.08
TRA32301-106In StockAir System
KP Services Crossville

TRA32301-106

HOSE ASSY. SLIDER 3/8X106

$50.03
32002-072In StockAir System
KP Services Crossville

32002-072

AIR HOSE ASSY, 3/8X72

$16.97
32002-060In StockAir System
KP Services Crossville

32002-060

AIR HOSE ASSY, 3/8X60

$18.80