Rack and Pinion Pneumatic Actuator Series 9293 https://www.bray.com/images/default-source/products/controls/s92-93/s92_s93_sz119_ht_01thumbnail.webp?sfvrsn=97a8c308_8

Rack and Pinion Pneumatic Actuator

Series 92/93

Output Torque
Up to 44,130 in-lb (4,986 Nm)
Temperature Range
-40°F to 300°F (-40°C to 149°C)
Maximum Allowable Operating Pressure
Up to 140 psig (10 Bar)


Rack and Pinion Pneumatic Actuator - Series 92/93

Output Torque
Up to 44,130 in-lb (4,986 Nm)
Control Options
On-Off, Throttling, Double Acting, Spring Return
Temperature Range
-40°F to 300°F (-40°C to 149°C)
Power Source
Maximum Allowable Operating Pressure
Up to 140 psig (10 Bar)
Enclosure Ratings
IP66/IP67M per IEC 60529
ISO 5211: 2001(E)
Supply Media
Dry Compressed Air, Inert Gas
Design Standard
EN 15714-3
ABS, ATEX, Bureau Veritas, PED, SIL 3
Testing Standard
EN 15714-3:2009
Single or Double Acting
Extended Travel Stops
Valve Compatibility
Butterfly Valves, Ball Valves

Features & Benefits

Output Torques to 44,130 in-lb (4,986 Nm)


Styling, strength, compactness, and simplicity of design have been combined to produce the Bray Series 92 direct acting and the Series 93 spring return pneumatic actuators.

Engineering excellence and precision manufacturing has produced a modular product line with reduced overall size requirements and economic savings. In addition all Bray accessories are fully modular and directly mount to the actuator – providing flexibility and efficiency at reduced cost.

Bray Series 92/93 actuators are rack and pinion, opposed-piston actuators available in two versions: double acting for rotation of 90°, 135° and 180°, and spring return for 90° rotation.

The Series 92/93 actuators were designed primarily for pneumatic operation up to a maximum pressure of 140 psig (10 Bar) and for temperature ranges of -4°F to 200°F (-20°C to 93°C). For higher and lower temperature applications, consult factory.

All double acting and spring return units are suitable for both on/off and throttling applications. Actuators which can be actuated with other media such as hydraulic oil or water are also available as an option.

The Series 92/93 is completely enclosed and self contained. The many features minimize maintenance and provide safe, simple disassembly and assembly.

  • Two independently adjustable travel stop screws and a cam on the output shaft to permit precise bidirectional adjustment of movement in both the open and closed positions for quarter turn valves (+5° to -5° limit adjustment)
  • Integral porting
  • Standard units have anodized aluminum bodies with polyester coated end caps
  • Special coatings and materials available for corrosive environments
  • NAMUR accessory compatible


Direct Mounting

Bray actuators comply with ISO 5211 dimensions and mount directly to Bray valves without using external linkages. Field installation is simple, misalignment is minimized and contamination buildup between valve and actuator is reduced.

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