Parker Hannifin Corporation
Parker Hannifin Corporation
Instrumentation Products Division
1005 A Cleaner Way
Huntsville, AL 35805 USA
Phone: +1 (256) 881-2040
Fax: +1 (256) 881-5072
Email: c-parker@parker.com
Website: www.parker.com
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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.
Low-Pressure-Check-Valves_Low
Ball Type Excess Valves Flow
Unit of Measure
Items Low-Pressure-Check-Valves_Low
CXK4402
Medium Pressure Ball Type Excess Flow Valves 		Low-Pressure-Check-Valves_Low
CXK6602
Medium Pressure Ball Type Excess Flow Valves 		Low-Pressure-Check-Valves_Low
CXK9902
Medium Pressure Ball Type Excess Flow Valves 		Low-Pressure-Check-Valves_Low
CXK1202
Medium Pressure Ball Type Excess Flow Valves 		Low-Pressure-Check-Valves_Low
CXK1602
Medium Pressure Ball Type Excess Flow 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 0.37 N/A 0.66 N/A 0.212 N/A 0.368 N/A 0.864
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 5.12 in130.05 mm N/A 6.50 in165.10 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 4.38 in111.25 mm N/A 5.62 in142.75 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 1.88 in47.75 mm
Note N/A N/A N/A N/A N/A Dimension HEX is distance across flats.
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