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

Materials: 316 Stainless Steel: body, cover, sleeve, cover gland. 300 Series Stainless Steel: ball

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.

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.

Caution: See Tubing section for proper selection of tubing.
Note: For optional material see Technical Information.

Note: Special material check valves may be supplied with four flats in place of standard hex.

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


Rated Cv

Add To Cart/Request Quote
CXK4402 N/A SF250CX N/A 20000 psi1378.93 bar N/A 0.125 in3.18 mm N/A 0.37 Request Quote
CXK6602 N/A SF375CX N/A 20000 psi1378.93 bar N/A 0.218 in5.54 mm N/A 0.66 Request Quote
CXK9902 N/A SF562CX N/A 20000 psi1378.93 bar N/A 0.359 in9.12 mm N/A 0.212 Request Quote
CXK1202 N/A SF750CX N/A 20000 psi1378.93 bar N/A 0.516 in13.11 mm N/A 0.368 Request Quote
CXK1602 N/A SF1000CX N/A 20000 psi1378.93 bar N/A 0.688 in17.48 mm N/A 0.864 Request Quote
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