Honeywell Pneumatic Controls - MP913 Pneumatic Variable Volume Damper Actuator; Variable Volume

Damper Actuator
Humidistats
and
Thermostats Controllers Sensors Relays Switches Actuators Valves Accessories
Engineering
Guide
Cross
Reference
70-6925 79
MP913 Pneumatic Variable Volume Damper Actuator
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.
MP913A Typical Piping
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: 30 psi (207 kPa)
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)
M5438
PRIMARY
AIR
MP913A
CEILING
DIFFUSER
Product Number
Diaphragm Effective
Area Spring Range Stroke
Includessq in. sq cm (psi) (kPa) (inch) (mm)
MP913A1003 2.2 sq in. 14 sq cm 10 psi to
15 psi
69 kPa to
103 kPa
1 in. 25 mm
14002808-001 - Flat Mounting Bracket. Shaft has 1/8 in.
diameter hole for a roll pin.
MP913A1011 2.2 sq in. 14 sq cm 10 psi to
15 psi
69 kPa to
103 kPa
1 in. 25 mm
14003640-001 - 90 degree Angled Mounting Bracket and
3/8 in.-16 Threaded Shaft
MP913A1029 2.2 sq in. 14 sq cm 5 psi to
10 psi
34 kPa to
69 kPa
1 in. 25 mm
14003640-001 - 90 degree Angled Mounting Bracket and
3/8 in.-16 Threaded Shaft
MP913A1037 2.2 sq in. 14 sq cm 5 psi to
10 psi
34 kPa to
69 kPa
1 in. 25 mm
14003640-001 - 90 degree Angled Mounting Bracket.
Shaft has 1/8 in. diameter hole for a roll pin.
MP913A1177 2.2 sq in. 14 sq cm 3 psi to
13 psi
21 kPa to
90 kPa
1 in. 25 mm
14002809-001 - 90 degree Angled Mounting Bracket (3-
point attachment) and 3/8 inch - 16 threaded shaft