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All Categories > High Pressure Fittings and Tubing > High Pressure Fittings and Tubing > High Pressure Check and Excess Flow Valves > High Pressure O-Ring Check Valves > View Items  
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High Pressure O-Ring Check Valves

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Provide unidirectional flow and tight shut-off for liquids and gases with high reliability. When differential drops below cracking pressure*, valve shuts off. (Not for use as relief valve.)

Materials: 316 Stainless Steel: body, cover, poppet and cover gland. 300 Series Stainless Steel: spring Standard O-ring: Viton, for operation to 500° F (260°C). Buna-N or Teflon available for 250°F (121°C) or 400°F (204°C) respectively; specify when ordering.

Cracking Pressure: 20 psi (1.38 bar) ±30%. Springs for higher cracking pressures (up to 100 psi (6.89bar)) available on special order for O-ring style check valves only.

Minimum operating temperature for standard o-ring check valves 0°F (17.8°C).
For low temperature option to -423°F (-252°C) add suffix LTTO (Low temperature spring & Teflon o-ring).

Caution: While testing has shown O-Rings to provide satisfactory service life, both cyclic and shelf life may vary widely with differing service conditions, properties of reactants, pressure and temperature cycling and age of the O-ring. FREQUENT INSPECTIONS SHOULD BE MADE to detect any deterioration, and O-rings replaced as required.

Note: For optional material see Technical Information.

All dimensions for reference only and subject to change.
For prompt service, Autoclave stocks select products. Consult your local representative.
All general terms and conditions of sale, including limitations of our liability, apply to all products and services sold.




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  Results 1 - 5 of 5 1 

Item #

Fits Connection Type

Pressure Rating

Orifice

Rated Cv

CKO4400 F250C 60000 psi
4136.79
bar
0.094 Inch
2.39
mm
0.15
CKO6600 F375C 60000 psi
4136.79
bar
0.125 Inch
3.18
mm
0.28
CKO9900 F562C 60000 psi
4136.79
bar
0.187 Inch
4.75
mm
0.63
40CKO9900 F562C40 40000 psi
2757.85
bar
0.250 Inch
6.35
mm
0.78
43CKO16 F1000C43 43000 psi
2964.70
bar
0.438 Inch
11.13
mm
4.3
  Results 1 - 5 of 5 1 

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