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The Safety Spring (for single acting pneumatic actuators) allows the removal of the end caps for maintenance or changing of the fail orientation without the fear of injury due to the stored energy of the springs. We have incorporated a captive spring design (shown as the black, green and yellow items) into the concentric spring pack so that they are contained, and the stored energy remains just that; stored.
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The Integral travel stop (for single and double acting pneumatic actuators) allows for independent adjustment of the close stroke (0°) from -2 ° to +5 °, and independent adjustment of the open stroke (90°) from -5 ° to +2 °.
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The end caps have been redesigned such that they are secured to the actuator body with the use of 316 Stainless Steel socket head cap screws; eliminating the need for specialty tools.
- Actuator design:
Double rack and pinion
- Body and end cap material:
316 Stainless Steel
- Output Shaft:
303 SS for BS79, CS79 & DS79
316 SS for ES79
All sizes provided with double O-Ring seal on top and bottom of shaft
- Temperature range:
-25 °F - 195 °F
- O-Ring material:
Self-lubricating BUNA-N
- Output torque range:
100 in/lbs - 1592 in/lbs
(Previously 100 in/lbs - 557 in/lbs)
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- Piston guide and guide ring material:
Polyacetyl for BS79, CS79 & DS79
PTFE and bronze for ES79
- Spring Material:
Cataphoresis coated DIN-17223-C
- Spring Design:
Concentric safety spring with spring retainer, all Cataphoresis coated
- Supply air:
60psi - 120psi
- Air connections:
¼" FNPT
- Mounting dimensions:
ISO and NAMUR
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