VP33 Series 1-Piece Check Valves

Features

  • Fixed and adjustable cracking pressure.
  • Reliable DK-LOK Tube Fitting, NPT and ISO pipe end connections.
  • Stainless and Brass material construction.
Item # Series End Connection Size Inlet x Outlet Spring Nominal Cracking Pressure
VP33A-F4N-1/3-S Cv Reduction – 0.35 Female NPT 1/4″ Female NPT x 1/4″ Female NPT 1/3 psi (0.02 bar)
VP33A-F4R-1/3-S Cv Reduction – 0.35 Female ISO Tapered 1/4″ Female ISO Tapered x 1/4″ Female ISO Tapered 1/3 psi (0.02 bar)
VP33A-M4N-1/3-S Cv Reduction – 0.35 Male NPT 1/4″ Male NPT x 1/4″ Male NPT 1/3 psi (0.02 bar)
VP33A-M4R-1/3-S Cv Reduction – 0.35 Male ISO Tapered 1/4″ Male ISO Tapered x 1/4″ Male ISO Tapered 1/3 psi (0.02 bar)
VP33A-MF4N-1/3-S Cv Reduction – 0.35 Male NPT, Female NPT 1/4″ Male NPT x 1/4″ Female NPT 1/3 psi (0.02 bar)
VP33A-FM4N-1/3-S Cv Reduction – 0.35 Female NPT, Male NPT 1/4″ Female NPT x 1/4″ Male NPT 1/3 psi (0.02 bar)
VP33B-F8N-1/3-S Cv Reduction – 1.20 Female NPT 1/2″ Female NPT x 1/2″ Female NPT 1/3 psi (0.02 bar)
VP33B-M8N-1/3-S Cv Reduction – 1.20 Male NPT 1/2″ Male NPT x 1/2″ Male NPT 1/3 psi (0.02 bar)
VP33B-MF8N-1/3-S Cv Reduction – 1.20 Male NPT, Female NPT 1/2″ Male NPT x 1/2″ Female NPT 1/3 psi (0.02 bar)