Description

These Actuators are used for proportional control of variable volume terminal units, mixing boxes, and small to medium sized dampers. MP909 Series Actuators are rolling diaphragm, piston-type pneumatic damper actuators. MP909A,B, and C were manufactured with steel housings and in many stroke length and spring range combinations. The MP909D and E are manufactured with aluminum alloy housings and in only two stroke lengths and four spring ranges. The MP909H is an MP909E with a positive positioner providing adjustable start point and 3,5,or 10 psi span. MP909D models replace most MP909A models and MP909E models replace most MP909B models.

The MP918B replaces MP909C models. Listed are some commonly used models with the Spring Range, Stroke, and Shaft Thread noted. Please contact us for other models and prices.

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