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Protects pressure gauges and pressure instrumentation from surges in flow or sudden venting in the event of line failure.

Materials: Body, cover, sleeve: Type 316 Annealed Stainless Steel, Ball: 300 Series Annealed Stainless Steel, Cover gland: annealed stainless steel.

Vertical Installation: Since this type of check valve employs a non-spring loaded ball, valve MUST be installed in VERTICAL position with arrow on valve body pointing UP. (cover gland up).

Resetting Valve: Equalize the pressure across the ball. The ball will drop and reset automatically.

Note: All sour oil and gas valves and fittings supplied without collars and glands unless otherwise specified.

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.

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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Item #

Fits Connection Type

Pressure Rating


Add To Cart/Request Quote
CK4402-SOGWO N/A F250C N/A 30000 psi2068.39 bar N/A 0.094 in2.39 mm Request Quote
CK6602-SOGWO N/A F375C N/A 30000 psi2068.39 bar N/A 0.125 in3.18 mm Request Quote
CK9902-SOGWO N/A F562C N/A 30000 psi2068.39 bar N/A 0.187 in4.75 mm Request Quote
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