Flowserve Valtek VR - Page 11

Valtek VR Spring Cylinder Rotary Actuators
VLAIM031-14 (EN/AQ) May 2023
Page 11 of 13
Figure 4: Transfer Case Mounting
Actuator Orientations for Valdisk and ShearStream Control Valves
Shaft Upstream
Shaft Downstream
Right-hand Mounting (standard)
Air-to-Open
Fail Closed
Air-to-Close
Fail Open
Right-hand Mounting (optional)
Air-to-Close
Fail Open
Air-to-Open
Fail Closed
Air-to-Open
Fail Closed
Left-hand Mounting (optional)
Air-to-Close
Fail Open
Air-to-Close
Fail Open
Left-hand Mounting (standard)
Air-to-Open
Fail Closed
Actuator Orientations for MaxFlo Control Valves
Shaft Upstream
Shaft Downstream
Right-hand Mounting (standard)
Air-to-Open
Fail Closed
Air-to-Close
Fail Open
Right-hand Mounting (optional)
Air-to-Close
Fail Open
Air-to-Open
Fail Closed
Air-to-Open
Fail Closed
Air-to-Close
Fail Open
Left-hand Mounting (optional)
Left-hand Mounting (standard)
Air-to-Open
Fail Close
Actuator Orientation
Note: Orientations 2 and 4 are not available
on some actuator sizes.
1 1
Handwheel Orientation
Note: These orientations are in
relation to the pipeline.
D
C
Air-to-Close
Fail Open
2 4
4
2
3
3
A