Fisher™ 377 Pressure Sensing Trip Valve

Fisher 377 trip valves help you maintain normal process operation in applications where a specific valve or actuator action is required. When supply pressure falls below the trip point, the trip valve causes the actuator to fail up, lock in the last position, or fail down. When the supply pressure rises above the trip point, the 377 trip valve automatically resets, allowing the system to return to normal operation.

Features

Cost Effective — Single trip valve construction reduces costs and spare part requirements of those systems using three separate switching valves to perform the failure functions. A single trip valve greatly simplifies piping requirements.
Ease of Mode Conversion — Conversion to any of the fail modes requires only minor hookup changes.
Adjustable Trip Valve — The trip point is adjustable for specific supply pressure requirements.
Reliable Operation — The trip valve design includes large diaphragm areas and few moving parts for efficient performance, minimum maintenance, and long service life.

Technical Data

Certifications ATEX, CUTR

Diagnostics No

Input Signal Pneumatic

Max Outlet Pressure 150 psig

Mounting Type Actuator Mount

Operating Temperature Standard Temperature, High Temperature

Position Control On/Off

Safety Certification SIL 3 capable

Supply Media Air, Natural Gas

Other Configurations Contact us to learn about additional specifications or options for this product

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