Inline Check Valves


PORT SIZE : 1" thru 3" (25mm – 80mm)

SUPERFREEZE WSCK-Series dependable, compact rugged in-line check valves (Non-return valves) are ideally suitable for refrigerant flow control applications. Valves open wide for flow in the arrow direction on the valve body. Valves close quickly and reliable when flow reversal occurs. Plated bodies, stainless steel disc, and spring enable them to withstand expected industrial refrigeration conditions. Furthermore, these valves can be mounted in any position.


Refrigerants : Suitable for all common refrigerants including R-717 (ammonia), R-22, R-134a,

Neutral Gaseous and liquid media

Safe working pressure : 365 psig (25 bar)
Operating Temp : -46oC to 116oC (-50`F to 240`F)
Compact size occupies very little space
Can be installed in any position
Low pressure drop


These in-line check valves are designed to provide refrigerant flow control to hot gas lines, liquid lines, compressor discharge lines, suction lines and hot gas heated drain pan. These valves are not recommended for slow speed compressor discharge lines or for any compressor discharge where a low-speed machine discharges into the same downstream header, or for use on side port suction lines on a screw compressor installation.