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 Sliding Gate Control Valves > Mark 76 Series



Mark 76 Series For many control valve applications, a modulating, linear style valve is adequate. However, on/off control is more effective, or necessary, in some control valve processes. While many pneumatic, modulating control valves can be used for on/off service by supplying air pressure to the actuator in excess of the spring range they are sometimes an inappropriate solution to control a process. True on/off control valves, like the Mark 76, offer many advantages over this approach.

The Mark 76 (1/2" - 2") typically functions using a 0 psi or 20 psi control signal. Through the use of a solenoid, either 0 psi or 20 psi is supplied to the actuator. Depending on the configuration of the sliding gate seats, 20 psi will either open or close the valve.

Features & Benefits




Extremely fast opening and closing times — it is able to achieve rapid control for two reasons: short stroke and the flow is straight through the valve and does not force the seats towards the open or closed position.
Lower pressure requirements —A low amount of force is needed to open and close the valve.
Longevity — The Mark 76 provides the user with very long valve life, especially the actuator. Lab testing has shown that even after exceeding 10 million cycles, the MK76 displayed no visible wear on the diaphragm.
Steam application capability — Since our sliding gate valves do not require soft seals, we can offer our MK76 for virtually all steam related on/off service.