Product Name: Fisher 644 and 645 Actuators Product Brand: Fisher Product Code: 644 and 645 Product Artikel: Fisher 644 and 645 Actuators
Fisher 644 and 645 actuators are used to automatically control steam-driven boiler feedwater pumps (reciprocating or turbine). The 644 or 645 actuator, when used in combination with one of several push-down-to-close sliding-stem valves, forms a pump governor. 644 and 645 actuators may also be combined with push-down-to-open valves to be used as relief governors. Specifications Actuation Manual Certifications CUTR Control Type On/Off Operating Temperature Standard Temperature Power Source Manual Valve Type Globe Valve Other Configurations Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.
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