Refrigerant Shut-off Valves



Parker's shut-off valves are designed for the safe handling of air, gases and liquids for many hydraulic, pneumatic, instrumentation, refrigeration and aerospace applications. Our valves ensure clean, reliable and economical operation with high cycle life, resulting in less downtime and lower replacement costs. All valves are available in a wide range of types, styles, materials and configurations for many operating conditions.


RS- Hand Shut- Off/ Expansion Valves


The RS Shut- off/ Expansion Valves were designed and built to maintain reliability both in their seating and back seating functions.


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herl valves clark johnson co


Refrigeration Hand Expansion & Shut- Off Valves- Herl Series


HERL valves are the industry’s standard for rugged, dependable products.


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parker refrigeration Clark Johnson Co

Clark Johnson Company, Inc.       2018®