SYSR

SYSR Scotch Yoke Spring Return Actuator Series
The SYSR Scotch Yoke Spring Return Actuator is designed as an economical actuator for moderate duty control applications. The SYSR is typically utilized when applications require the control valve to fail open or closed failure mode. The SYSR incorporates a �scotch-yoke� mechanism. The SYSR can accept power supply gas up to 130 psig (896 kPa). The SYSR Actuator may be easily field configured to reverse failure mode. The SYSR features a compact design that is convenient when installation space is a premium.

Specifications:

Actuator Type: Quarter Turn (90°)
Mechanism: Crank-arm
Usage: Moderate-duty
Action: Single-Acting
(fail open or fail closed)
Applications: Throttling, On-Off
Max. Supply Gas: 130 psig
Bleed to Pressure System: Limited
Below Grade Design: Not recommended
Maximum Valve Size: 36� bore
Minimum Valve Size: 2� bore
Stop Adjustment: Internal
Proffered Installation: Vertical
Available Installation: Any