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Prevent reverse flow where leak-tight shut-off is not mandatory. When differential drops below cracking pressure, valve closes. With all-metal components, valve can be used up to 1200°F (649°C). See Technical Information section for connection temperature limitations. (Not for use as a relief valve.)

Ball and poppet are an integral design to assure positive, in-line seating without “chatter”. Poppet is designed essentially for axial flow with minimum pressure drop.

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

Minimum operating temperature for standard ball check valves -110° (-79°C).
For low temperature option to -423°F (-252°C) add suffix LT (Low temperature spring).

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.
Low-Pressure-Check-Valves_Low
Ball Check Valves Flow
Unit of Measure
Items Low-Pressure-Check-Valves_Low
CXB4400
Medium Pressure Ball Check Valves
Low-Pressure-Check-Valves_Low
CXB6600
Medium Pressure Ball Check Valves
Low-Pressure-Check-Valves_Low
CXB9900
Medium Pressure Ball Check Valves
Low-Pressure-Check-Valves_Low
CXB12
Medium Pressure Ball Check Valves
Low-Pressure-Check-Valves_Low
CXB16
Medium Pressure Ball Check Valves
Fits Connection Type N/A SF250CX N/A SF375CX N/A SF562CX N/A SF750CX N/A SF1000CX
Pressure Rating N/A 20000 psi1378.93 bar
Orifice N/A 0.125 in3.18 mm N/A 0.218 in5.54 mm N/A 0.359 in9.12 mm N/A 0.516 in13.11 mm N/A 0.688 in17.48 mm
Rated Cv N/A 0.28 N/A 0.84 N/A 2.30 N/A 4.70 N/A 7.40
A - Length N/A 2.94 in74.68 mm N/A 3.12 in79.25 mm N/A 4.18 in106.17 mm N/A 5.50 in139.70 mm N/A 6.63 in168.40 mm
B - Length N/A 2.50 in63.50 mm N/A 2.62 in66.55 mm N/A 3.50 in88.90 mm N/A 4.75 in120.65 mm N/A 5.75 in146.05 mm
C - Length N/A 0.38 in9.65 mm N/A 0.47 in11.94 mm N/A 0.53 in13.46 mm N/A 0.62 in15.75 mm N/A 0.72 in18.29 mm
D - Typical Hex N/A 0.5 in12.70 mm N/A 0.62 in15.75 mm N/A 0.94 in23.88 mm N/A 1.19 in30.23 mm N/A 1.38 in35.05 mm
HEX N/A 0.81 in20.57 mm N/A 1.00 in25.40 mm N/A 1.38 in35.05 mm N/A 1.75 in44.45 mm N/A 2.12 in53.85 mm
Note N/A
Tubing Engagement Depth N/A 0.55 in14.0 mm N/A 0.69 in17.6 mm N/A 0.81 in21.0 mm N/A 1.00 in25.4 mm N/A 1.38 in35.0 mm