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The Mark 978 is designed to meet the required specifications for sterile process control valves. It is suitable for a wide variety of applications in the pharmaceutical, biotechnology, cosmetic, dairy and food & beverage industries. High rangeability, Cv offerings, characterized trim, excellent temperature and pressure ratings and a selection of sealing methods make the MK978 a superior product for liquid, gas and steam services.

The MK978 is available with a Jorlon diaphragm, O-Ring, Lip and Elastomer diaphragm stem seals in sizes 1/2" through 1", and Jorlon and O-Ring seals for 1-1/2" & 2".

Whether the need is control pressure, temperature, flow, pH level, or another variable, the MK978 is the right valve for the job!