Product Overview
Strength, compactness, and simple modular design ensure reliable quarter-turn control
Reliable Rack and Pinion Pneumatic Actuators for Industrial Automation
Bray’s Series 92 direct drive and Series 93 spring return pneumatic actuators incorporate design elements of form, strength, compactness, and simplicity. Superior design and precision manufacturing produce a modular product line that reduces overall size requirements and saves costs. Additionally, all Bray accessories are fully modular and mount directly to the actuator, reducing costs while providing flexibility and efficiency. Bray Series 92/93 actuators are rack and pinion opposed piston actuators available in two versions: double-acting with rotations of 90°, 135°, and 180°, and spring return with 90° rotation. Series 92/93 actuators are primarily designed for pneumatic operation with maximum pressure up to 140 psig (10 bar) and temperature range of -4°F to 200°F (-20°C to 93°C). Consult the factory for higher and lower temperature applications. All double-acting and spring return units are suitable for on/off and modulating applications. As an option, actuators driven by other media such as hydraulic oil or water are also available. The Series 92/93 is completely self-enclosed and self-contained. Its various features reduce maintenance and make disassembly and installation safer and easier. Two independent adjustable travel stop screws and cams on the output shaft provide precise bidirectional adjustment of 90° rotary valve movement in open and closed positions (+5° to -5° limit adjustment) Integral porting Standard units feature an anodized aluminum body with polyester-coated end caps Special coatings and materials for corrosive environments NAMUR accessory compatibility Direct mounting Bray actuators conform to ISO 5211 mounting dimensions and mount directly to Bray valves without requiring external couplings. Field installation is simple, minimizing misalignment and reducing contaminant accumulation between the valve and actuator. Bray Series 92/93 actuators are specified as direct replacements for Flow-Tek Series 92/93.
Technical Specifications
| Parameter | Value |
|---|---|
| Output Torque | Up to 44,130 in-lb (4,986 Nm) |
| Control Options | On/Off, Modulating, Double-Acting, Spring Return |
| Temperature Range | -40°F to 300°F (-40°C to 149°C) |
| Power Source | Pneumatic |
| Maximum Allowable Operating Pressure | Up to 140 psig (10 bar) |
| Ingress Protection | IP66/IP67M per IEC 60529 |
| Mounting | ISO 5211: 2001(E) |
| Supply Medium | Dry Compressed Air, Inert Gas |
| Certifications | ABS, ATEX, Bureau Veritas, PED, SIL 3 |
| Options | Single-Acting or Double-Acting Extended Travel Stop |
| Valve Compatibility | Butterfly Valves, Ball Valves |