The FISHER SS¬263 volume booster is used in conjunction with FISHER control valves with double-acting piston actuators. Large piston actuators require proportionally larger volumes of air to stroke; typical valve positioner output cannot usually provide enough of a volume of air to quickly and fully stroke actuators such as these. The SS¬263 volume booster solves this by amplifying the output from the valve positioner to increase actuator stroking speed. The dual-ported design of the booster amplifies both the supply and exhaust flow, which are both precisely controlled by means of a pneumatic signal from the valve positioner.
- 1/4 NPT diagnostic connection for easy testing
- 1/4 NPT actuator bypass assembly connection for use on an actuator with a handwheel
- 3/4 NPT connection, with the removal of a bushing, for use with a high capacity dump valve
Supply port: 19 mm (0.75 inches)
Exhaust port: 19 mm (0.75 inch)
Supply: 9.5 Cv Exhaust: 9.5 Cv
Input signal:1/4 NPT
Supply:1 NPT
Output: 1 or 1-1/4 NPT
Complies with the requirements of ATEX Group II Category 2 Gas and Dust
Aluminum: 3.6 kg (8 lb)
Stainless steel: 10.8 kg (24 lb)
Contact us for more information.
Used in conjunction with a positioner on a throttling control valve to increase stroking speed.