Pneumatic damper actuator, MP904

Pneumatic actuator for a damper that controls the volume of air in heating, cooling or ventilation systems.

Max. operating pressure	140 kPa
Air connection	barb fitting for 6 mm 1/4" polyethylene tubing
Max. safe air pressure	210 kPa
Stroke	90 mm

Additional description

Pressure operating range for MP904A,C models field adjustable for 3 spans.

Pressure range kPa	Positioner	Effective diaphragm area	Net force at 0 kPa pressure	Net force at 140 kPa pressure	Ambient temperature	Type
		cm²	N	N	^oC
21, 35, 70	•	146	550	600	-30 ... 70	MP904A5047
21...91	—	146	270	600	-30 ... 90	MP904B5037
49...91	—	146	550	600	-30 ... 90	MP904B5052
21, 35, 70	•	65	280	250	-30 ... 70	MP904C1026
14..49	—	65	70	500	-30 ... 90	MP904D1032
49...91	—	65	280	250	-30 ... 90	MP904D1040
21...91	—	65	110	250	-30 ... 90	MP904D1057