Description

Designed for proportional control of medium to large dampers in HVAC systems, the MP918A and MP918B are rolling diaphragm, piston-type actuators. The MP918A model features a positive positioner. Replacement units are compatible with Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell actuator models

Features

Rolling diaphragm operated.
Low friction shaft bearing.
Close tolerance on operating range and stroke.
Versatile mounting and connecting hardware.
Non-overlapping spring ranges for sequencing.
Reliable-long life.

Specs

Air Connections:

1/8″ NPT

5/32″ push-on barb (Pilot), 1/4″ push-on barb (main.)

Product Type:

Actuator

Actuator Type:

Pneumatic

Temperature Range (F):

-20°F to 158°F

Actuator Spring Range:

10 psi

Fail Safe Mode:

Spring Return

Stroke:

3-1/2″

Max Pressure (PSI):

25

Features:

Internal N.C. trunnion mounting bracket


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Specificationsheet.pdf

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