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HSR-1628-87775

Technical Specifications Parameter Specification Part Number HSR-1628-87775 Description Handwheel Assembly Compatible Actuators Fisher 657/667 Series Pneumatic Actuators (verify specific model compatibility) Function Manual override for valve stem positioning Operation Manual rotation of handwheel to drive valve stem Mounting Bolted connection to actuator yoke Materials - Handwheel/Bracket: Coated carbon steel or aluminum - Lead Screw/Yoke Nut: Stainless steel - Hardware: Zinc-plated or stainless steel Environmental Rating Standard industrial grade (suitable for indoor/outdoor use)

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The Fisher part number HSR-1628-87775 is a Handwheel Assembly designed for manual override operation of Fisher control valves, typically used with pneumatic actuators (e.g., 657 or 667 series). This assembly includes a handwheel, mounting brackets, lead screw, yoke nut, and all necessary hardware to enable manual control of the valve stem position. It allows operators to manually open, close, or modulate the valve during maintenance, power loss, or emergency situations, ensuring operational reliability and safety. The assembly is constructed from corrosion-resistant materials for durability in harsh industrial environments.