Applied Control - Emerson Impact Partner

Fisher® Valve Accessories

Applied Control offers a broad range of valve accessories for use with control valves.

Fisher® 377 Pressure-Sensing Trip Valve
Instruction Manual Product Bulletin
377 - Valve AccessoryFisher® 377 pressure-sensing trip valve is used for control applications where a specific valve/actuator action is required when supply pressure falls below a specific point. 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 Series trip valve automatically resets, allowing the system to return to normal operation. The trip valve can be top-mounted on a manifold, yoke-mounted, or bracket-mounted to match the application requirements.
Fisher® 2625 & 2625NS Volume Booster
Instruction Manual Product Bulletin
2625 Valve AccessoryThe Fisher® 2625 or 2625NS volume booster is used in conjunction with a positioner on a throttling control valve to increase stroking speed. The 2625NS is a nuclear-service version and uses elastomeric components that better withstand high temperature and radiation environments.  The booster incorporates fixed deadband, soft seat construction and an integral bypass restriction to eliminate positioner saturation problems that can occur with volume boosters that do not have these features.
Fisher® VBL Volume Booster
Instruction Manual Product Bulletin
The Fisher® VBL volume booster is used in conjunction with a positioner on a throttling control valve to increase stroking speed. The booster incorporates fixed deadband, soft seat construction, and an integral bypass restriction to eliminate positioner saturation problems that can occur with volume boosters that do not have these features. The volume booster delivers high-volume output for fast stroking when large, rapid input signal changes occur.
Fisher® 4200 Electronic Position Transmitter
Instruction Manual Product Bulletin
4200 Valve AccessoryFisher® 4200 electronic position transmitters combine field-proven electronic and mechanical expertise in a versatile, accurate instrument that senses the position of a device, and sends a standard (4 to 20 milliampere) output signal to an indicating device. The 4200 transmitters are available as a transmitter only, a transmitter with integral high and low electronic travel limit alarms or with high and low position switches only.
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