Vapor Check Valve

Use this Vapor Check Valve to return vapor to the truck during terminal loading and service station drops. The 3" poppet opens when coupled and closes when disconnected, preventing the vapors from escaping into the atmosphere. The valve has 3" or 4" female NPSM threads, a 4" cam and groove, and tapped mounting holes for the EBW Air Interlock Brake. The 303 series is available without a poppet to serve as a male quick coupler with an Air Interlock Valve mounting pad.

Order Info
  • Highlights

    • Anodized aluminum construction.
    • Stainless steel stem and spring.
    • Buna-N gasket.
    • Aluminum guide.
  • Specs

    Model Unit301-300-01301-300-02301-300-03303-333-03303-444-04
    Thread Size3.00-NPSM4.00-NPSM3.00-BSPP3.00-NPSM4.00-NPSM
    Weight (Lbs./Kg.)4.50/2.044.81/2.182.55/1.163.81/1.734.31/1.96
  • Order Info

    Part NumberDescription
    301-300-013" N.P.S.M. Vapor Recovery Adapter, with Poppet
    301-300-033" BSPP Vapor Recovery Adaptor, with Poppet
    301-300-024" N.P.S.M. Vapor Recovery Adapter, with Poppet
    303-333-033" N.P.S.M. Vapor Recovery Adapter, no Poppet
    303-444-044" N.P.S.M. Vapor Recovery Adapter, no Poppet
    Part NumberPart Name
    300-305-02Vapor Recovery Adapter - 3" N.P.S.M.
    300-302-02Vapor Recovery Adapter - 4" N.P.S.M.
    300-305-32Vapor Recovery Adapter - 3" B.S.P.P.
    300-105-01Spring - Poppet
    300-205-01Guide - Poppet Stem
    11090-02Retaining Ring
    770-201-023" Gasket Cover
    770-201-034" Gasket Cover
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