Mp913 Pneumatic Variable Volume Damper Actuator; Variable Volume - Honeywell Pneumatic Controls Engineering Manual

MP913 Pneumatic Variable Volume Damper Actuator

MP913A Typical Piping
MP913A
PRIMARY
AIR
CEILING
M5438
Diaphragm Effective
Area
Product Number sq in.
MP913A1003 2.2 sq in.
MP913A1011 2.2 sq in.
MP913A1029 2.2 sq in.
MP913A1037 2.2 sq in.
MP913A1177 2.2 sq in.
DIFFUSER
Spring Range
sq cm (psi) (kPa)
14 sq cm 10 psi to 69 kPa to
15 psi 103 kPa
14 sq cm 10 psi to 69 kPa to
15 psi 103 kPa
14 sq cm 5 psi to 34 kPa to
10 psi 69 kPa
14 sq cm 5 psi to 34 kPa to
10 psi 69 kPa
14 sq cm 3 psi to 21 kPa to
13 psi 90 kPa
Provides proportional control of variable volume dampers in small
high velocity mixing boxes. Replacement devices are available for
Johnson and Robertshaw devices. Suitable for direct replacement
only, do not attempt to replace larger damper actuators with this
unit.
• Compact in size.
• Neoprene rolling diaphragm.
• The MP913 Operator can be used with or without a crankarm.
Actuator Type: Damper
Dimensions, Approximate: 2 5/8 in. high (add 3/4 in. for shaft) x
2 1/4 in. diameter (67 mm high (add 19 mm for shaft) x 57 mm
diameter)
Actuator Force: Low
Fail Safe Mode: Spring Return
Air Connections: Barbed fitting for 1/4 in. O.D. plastic tubing
Temperature Range:
50 F to 140 F (10 C to 60 C)
Maximum Operating Pressure:
Humidity Range:
5 to 95% RH
Accessories:
315321 Crankarm Balljoint (with 1/4 in male threads), fits 5/16 in.
diameter pushrod
315781 Motor shaft balljoint with 3/8 - 16 UNC female threads, fits 5/16
inch diameter pushrods.
27520C Push Rod (5/16 in. dia., 12 in. length)
27520G Push Rod (5/16 in. dia., 24 in. length)
27520K Push Rod (5/16 in. dia., 36 in. length)
27520L Push Rod (5/16 in. dia., 48 in. length)
Stroke
(inch) (mm) Includes
1 in. 25 mm 14002808-001 - Flat Mounting Bracket. Shaft has 1/8 in.
diameter hole for a roll pin.
1 in. 25 mm 14003640-001 - 90 degree Angled Mounting Bracket and
3/8 in.-16 Threaded Shaft
14003640-001 - 90 degree Angled Mounting Bracket and
1 in. 25 mm
3/8 in.-16 Threaded Shaft
1 in. 25 mm 14003640-001 - 90 degree Angled Mounting Bracket.
Shaft has 1/8 in. diameter hole for a roll pin.
1 in. 25 mm 14002809-001 - 90 degree Angled Mounting Bracket (3-
point attachment) and 3/8 inch - 16 threaded shaft
70-6925
Damper Actuator
30 psi (207 kPa)
79