Specifications
Scotch Yoke Pneumatic Actuator – Series 98
Output Torque
2,744 to 885,100 in-lb (310 to 100,000 Nm)
Control Options
On/Off, Direct Acting, Spring Return
Temperature Range
-50°F to 300°F (-46°C to 149°C)
Power Source
Pneumatic
Pressure Ratings
40 – 150 psi (2.8 – 10.3 bar)
Enclosure Ratings
IP66/IP67M per IEC 60529
Mounting
ISO 5211: 2001(E), MSS SP-101-1989
Supply Media
Dry Compressed Air, Inert Gas
Certifications
ATEX, PED, SIL 3, ABS
Testing Standard
EN 15714-3:2009
Options
Symmetrical Yoke, Canted Yoke, Extended Stop, Hydraulic Override, Jack Screw, Jack Screw Gear Driven Override, Hydraulic Damper, Partial Stroke/Lockout
Applications
Emergency Shutdown
Valve Compatibility
Ball Valves, Butterfly Valves
Features & Benefits
Bray’s engineering excellence and precision manufacturing have produced the Series 98 pneumatic actuator, part of our modular, fully configurable product line optimized for direct mounting on Bray valves for flexibility and efficiency at reduced cost. Series 98 actuators were designed primarily for pneumatic operation to a maximum pressure of 150 psi (10.3 Bar) and for temperature ranges of -50°F (-46°C) to 300°F (+149°C).
Features
- Compact design offers a high torque to weight ratio
- Modular Design offers easy configuration in the field
- Module alignment ensured by precision machined centering rings
- Torque Output ranging from 2,744 to 885,100 in-lb (310 to 100,000 Nm)
- Spring End Torque ranging from 2,744 to 445,261 in-lb (310 to 50,306 Nm)
- Standard premium epoxy/polyurethane coating
Operating Conditions
- Pressure Range: 40 – 150 psi (2.8 – 10.3 bar)
- Media: Dry Compressed Air/Inert Gas
- Temperature Range Options:
- Standard: -20°F to 200°F (-29°C to 93°C)
- High Temperature: Up to 300°F (149°C)
- Low Temperature: Down to -50°F (-46°C)
- Torque Base: Mounting Dimensions per ISO 5211: 2001(E)
- Accessories: Shaft Driven Accessories Mounting per NAMUR-VDE
- Performance Testing: EN 15714-3:2009
- Ingress Protection: IP66/IP67M per IEC 60529
- Safety: ATEX, SIL 3 suitable, PED on request
