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SS-263 Volume Booster

Brand: Fisher
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The SS-263 volume booster is used exclusively in Fisher Optimized Digital Valve (ODV) packages. 

It amplifies the output signal from the FIELDVUE™ digital valve controller to increase the stroking speed of pneumatic actuators. 

It can deliver high-volume output for fast stroking speeds when responding to large input signal changes or smooth, stable, low-volume output when responding to small input signal changes. 

This allows stable, accurate throttling control which is often necessary during the startup or commissioning of process control equipment.
Features
  • Fast Response: The SS-263 delivers high-volume output for fast stroking speeds when responding to large input signal changes and low-volume output when responding to small input changes.
  • High capacity: Flow capacities of roughly three times higher than the 2625 booster result in the need for fewer fittings, tubing, and units.
  • Noise Attenuation: Exhaust is passed through specially-designed passages to reduce the amount of ambient noise that is generated.
  • Adjustable Response: The integral bypass restriction allows the booster to be easily and readily tuned to operate under small or large input signal changes.
  • Auxiliary Supply Connections: Supply air is readily available through two 1/4 NPT connections that are built into both sides of the unit for use with a Fisher 377 trip valve or other accessory.
  • 3 in 1 Connection: This special connection can provide any of the following connections, if needed: 1/4 NPT diagnostic connection for easy testing, 1/4 NPT actuator bypass assembly connection for use on an actuator with a handwheel, and 3/4 NPT connection, with the removal of a bushing, for use with a high capacity dump valve.
  • Soft-Seated Construction: Soft seated exhaust and supply valves provide for bubble tight shutoff to reduce unnecessary air consumption and ensure fail mode upon loss of plant air.
  • Robust Mounting: Flanged-style actuator mounting provides ease of maintenance, simplified tubing, compactness, and high vibration resistance.
The SS-263 volume booster is used exclusively in Fisher Optimized Digital Valve (ODV) packages. 

It amplifies the output signal from the FIELDVUE™ digital valve controller to increase the stroking speed of pneumatic actuators. 

It can deliver high-volume output for fast stroking speeds when responding to large input signal changes or smooth, stable, low-volume output when responding to small input signal changes. 

This allows stable, accurate throttling control which is often necessary during the startup or commissioning of process control equipment.
Features
  • Fast Response: The SS-263 delivers high-volume output for fast stroking speeds when responding to large input signal changes and low-volume output when responding to small input changes.
  • High capacity: Flow capacities of roughly three times higher than the 2625 booster result in the need for fewer fittings, tubing, and units.
  • Noise Attenuation: Exhaust is passed through specially-designed passages to reduce the amount of ambient noise that is generated.
  • Adjustable Response: The integral bypass restriction allows the booster to be easily and readily tuned to operate under small or large input signal changes.
  • Auxiliary Supply Connections: Supply air is readily available through two 1/4 NPT connections that are built into both sides of the unit for use with a Fisher 377 trip valve or other accessory.
  • 3 in 1 Connection: This special connection can provide any of the following connections, if needed: 1/4 NPT diagnostic connection for easy testing, 1/4 NPT actuator bypass assembly connection for use on an actuator with a handwheel, and 3/4 NPT connection, with the removal of a bushing, for use with a high capacity dump valve.
  • Soft-Seated Construction: Soft seated exhaust and supply valves provide for bubble tight shutoff to reduce unnecessary air consumption and ensure fail mode upon loss of plant air.
  • Robust Mounting: Flanged-style actuator mounting provides ease of maintenance, simplified tubing, compactness, and high vibration resistance.
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Specifications

Brand

Approximate Weight

  • Aluminum: 3.6 kg (8 lbs)

Connections

  • Input Signal: 1/4 NPT

Declaration of SEP

  • Fisher Controls International LLC Declares This Product to be in Compliance with Article 3 Paragraph 3 of the Pressure Equipment Directive (PED) 97/23/EC. It Was Designed & Manufactured in Accordance with Sound Engineering Practice (SEP) & Cannot B

Hazardous Area Classification

  • Complies with the Requirements of ATEX Group II Category 2 Gas & Dust

Input Signal

  • Positioner Output

Input to Output Pressure Ratio

  • Fixed at 1 to 1

Maximum Flow Coefficients

  • Supply: 9.5 Cv

Maximum Input Signal Pressure

  • 10.3 bar (150 psig)

Operating Temperature

  • -40° to 71° C (-40° to 160° F)

Other Configurations

  • Contact Your Local Emerson Business Partner or Sales Office to Learn About Additional Specifications or Options for This Product.

Port Diameters

  • Supply Port: 19 mm (0.75”)

Supply Pressure Ranges

  • Maximum
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