High Performance Butterfly Valves Series 36 & 37

The Keystone K-LOK High Performance Valve Line is a top of the line valve series ideal for modulating service, airport refueling, hydrocarbon processing, chemical/petrochemical processing, purified gas, steam and vacuum service, power and utilities, refrigeration, HVAC and alumina refining.

K-LOK polymer and elastomer seats provide bi-directional, drop-tight shut-off in vacuum as well as at full rated differential pressure. Its uniqueness does not rely on pressure to assist sealing therefore seals at high and low pressures, as well as dirty services. A variety of materials allows optimum seat life in all applications.

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