The Mark 37 Series control valve couples an electronic linear actuator with Jordans sliding gate seat technology to produce a highly accurate controller. This means that the Mark 37 is the ideal final control element for distributed process control systems.
Sliding gate seats help to provide a greater level of accuracy than other controller designs as they have a shorter stroke due to the straight flow through of the system. Faster responses are also given by having a shorter stroke than globe or plug-style valves.
Seats are easily interchangeable and provide a tight shutoff that is ANSI Class IV rated. 306SST / Jorcote and 316SST / Jorcote are used as the seat materials while the body materials used are carbon steel, stainless steel, bronze and ductile iron.
Temperature ranges for the controller are between -20°C and 66°C with the option for a low temperature spec which can operate till -40°C. The enclosure is explosion proof for Class I, Div.1 Group C, D and is Dust-ignition-proof for Class II, Div. 1, Groups E, F, G.
|Sizes||1/4" through 6" (DN8 through DN150). Note: 1/4" & 3/8" sizes uses 1/2" body with reducers.|
|Yoke material||Cast Iron|
|Stem Packing||Spring loaded Teflon (to 500°F/260°C); braided (above 500°F/260°C)|
|Service||steam, water, air, oil, gas and chemicals|
|Shutoff||ANSI Class IV|
Full specifications and further information can be found by downloading the spec sheet here.
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