Poppet check valve CK4 series

for gasmalebackflow

The Type CK4A Check Valves prevent backward flow of fluid in refrigerant suction, hot gas or liquid lines. Parker’s CK4 check valves are designed to be close coupled to a control valve which will reduce overall installation length, complexity, and cost. These valves are designed to prevent backflow in a variety of refrigeration applications and can be mounted on a valve or as a standalone component. The CK4 can be mounted in any orientation when used as a standalone part of the refrigeration system. These compact valves are spring closing with a lapped, stainless steel or chrome plated seat for positive closing action and low leakage. A minimum pressure difference of 0.05 bar (0.75 psi) is required to hold the valve in the open position. Removable seat plate with combination O-ring and metal to metal knife edge seal allows the valve to be disassembled for maintenance. They may be ordered with male adapter rings for close-coupling to other Refrigerating Specialties valves. Features and Benefits: • UL Listed (Thru 3” Size) • May be installed in any position • Lightweight • Inline Applications: • Re-circulating (overfeed) systems • High speed compressor discharge • Pump discharge • Suction temperatures down to -45°C (-50°F) • Hot gas lines (pan to evaporator) • Not suitable for discharge of reciprocating compressor or economizer port of screw compressor