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CH Series check valves offer reliable cracking and resealing in CNG fueling stations, sampling systems, natural gas vehicles and other high-pressure, high-cycle and high-flow applications requiring reliable cracking and resealing in high-pressure and high-flow applications.

Specifications
  • MAWP: Up to 6000 psig (413 bar)
  • Temperature Range: -40 to 400° F (-40 to 204° C)
  • Flow Coefficient: up to 4.7
  • Materials: 316 Stainless Steel, Other materials available
  • Cracking Pressures: 1/3 to 100 psig (0.023 to 6.89 bar)
  • Highly durable metal to metal seal
  • End Connections: Tube fitting, MNPT, FNPT, Male and Female BSPT
  • ECE R110 Approved

Options
Our website contains the most popular CH Series Check Valve configurations - more configurations are available.  To specify other configurations, please contact SSP Customer Service.  Special ordering instructions for the options below are included in the CH Series Catalog.

Cracking Pressures
(Non-standard items are in bold.  Call for availability)

  • 1/3
  • 1
  • 5
  • 10
  • 20
  • 25
  • 50
  • 75
  • 100

O-ring Materials
SSP offers the following O-ring materials.

  • FKM (Standard)
  • NBR
  • NBR3 - Low-temperature Nitrile
  • EP
  • FFKM

Tube Fitting End Connections
SSP offer three tube fitting designs. 

  • Duolok 2-ferrule end connections (Standard).
  • Unilok single-ferrule end connections
  • Griplok dual ferrule end connections
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Body Material

Connection 1 - Type

Connection 1 - Size

Connection 2 - Type

Connection 2 - Size

Cv

Cracking Pressure (psig)

Part #

Body Material

Connection 1 - Type

Connection 1 - Size

Connection 2 - Type

Connection 2 - Size

Cv

O-ring Material

Cracking Pressure

CAD

List Price

CH16-12PF-1/3-316 N/A 316 SS N/A FNPT N/A 3/4 in N/A FNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 1/3 psig N/A CAD -
CH16-12PF-10-316 N/A 316 SS N/A FNPT N/A 3/4 in N/A FNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 10 psig N/A CAD -
CH16-12PF-1-316 N/A 316 SS N/A FNPT N/A 3/4 in N/A FNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 1 psig N/A CAD -
CH16-12PF-25-316 N/A 316 SS N/A FNPT N/A 3/4 in N/A FNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 25 psig N/A CAD -
CH16-12PF-5-316 N/A 316 SS N/A FNPT N/A 3/4 in N/A FNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 5 psig N/A CAD -
CH16-12PM-1/3-316 N/A 316 SS N/A MNPT N/A 3/4 in N/A MNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 1/3 psig N/A CAD -
CH16-12PM-10-316 N/A 316 SS N/A MNPT N/A 3/4 in N/A MNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 10 psig N/A CAD -
CH16-12PM-1-316 N/A 316 SS N/A MNPT N/A 3/4 in N/A MNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 1 psig N/A CAD -
CH16-12PM-25-316 N/A 316 SS N/A MNPT N/A 3/4 in N/A MNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 25 psig N/A CAD -
CH16-12PM-5-316 N/A 316 SS N/A MNPT N/A 3/4 in N/A MNPT N/A 3/4 in N/A 3.25 N/A FKM N/A 5 psig N/A CAD -
CH16-16PF-1/3-316 N/A 316 SS N/A FNPT N/A 1 in N/A FNPT N/A 1 in N/A 3.25 N/A FKM N/A 1/3 psig N/A CAD -
CH16-16PF-10-316 N/A 316 SS N/A FNPT N/A 1 in N/A FNPT N/A 1 in N/A 3.25 N/A FKM N/A 10 psig N/A CAD -
CH16-16PF-1-316 N/A 316 SS N/A FNPT N/A 1 in N/A FNPT N/A 1 in N/A 3.25 N/A FKM N/A 1 psig N/A CAD -
CH16-16PF-25-316 N/A 316 SS N/A FNPT N/A 1 in N/A FNPT N/A 1 in N/A 3.25 N/A FKM N/A 25 psig N/A CAD -
CH16-16PF-50-316 N/A 316 SS N/A FNPT N/A 1 in N/A FNPT N/A 1 in N/A 3.25 N/A FKM N/A 50 psig N/A CAD -
CH16-D12-1/3-316 N/A 316 SS N/A Duolok Tube Fitting N/A 3/4 in N/A Duolok Tube Fitting N/A 3/4 in N/A 3.25 N/A FKM N/A 1/3 psig N/A CAD -
CH16-D12-10-316 N/A 316 SS N/A Duolok Tube Fitting N/A 3/4 in N/A Duolok Tube Fitting N/A 3/4 in N/A 3.25 N/A FKM N/A 10 psig N/A CAD -
CH16-D12-1-316 N/A 316 SS N/A Duolok Tube Fitting N/A 3/4 in N/A Duolok Tube Fitting N/A 3/4 in N/A 3.25 N/A FKM N/A 1 psig N/A CAD -
CH16-D12-50-316 N/A 316 SS N/A Duolok Tube Fitting N/A 3/4 in N/A Duolok Tube Fitting N/A 3/4 in N/A 3.25 N/A FKM N/A 50 psig N/A CAD -
CH16-D12-5-316 N/A 316 SS N/A Duolok Tube Fitting N/A 3/4 in N/A Duolok Tube Fitting N/A 3/4 in N/A 3.25 N/A FKM N/A 5 psig N/A CAD -
CH16-D16-1/3-316 N/A 316 SS N/A Duolok Tube Fitting N/A 1 in N/A Duolok Tube Fitting N/A 1 in N/A 3.25 N/A FKM N/A 1/3 psig N/A CAD -
CH16-D16-10-316 N/A 316 SS N/A Duolok Tube Fitting N/A 1 in N/A Duolok Tube Fitting N/A 1 in N/A 3.25 N/A FKM N/A 10 psig N/A CAD -
CH16-D16-1-316 N/A 316 SS N/A Duolok Tube Fitting N/A 1 in N/A Duolok Tube Fitting N/A 1 in N/A 3.25 N/A FKM N/A 1 psig N/A CAD -
CH16-D16-25-316 N/A 316 SS N/A Duolok Tube Fitting N/A 1 in N/A Duolok Tube Fitting N/A 1 in N/A 3.25 N/A FKM N/A 25 psig N/A CAD -
CH16-D16-5-316 N/A 316 SS N/A Duolok Tube Fitting N/A 1 in N/A Duolok Tube Fitting N/A 1 in N/A 3.25 N/A FKM N/A 5 psig N/A CAD -
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