Honeywell MP918A, MP918B Catalog Page
Pneumatic Damper Actuators
MP918A,B Pneumatic Damper Actuators
Dimensions in inches (millimeters)
Actuator with External Trunnion Mounting Bracket
1-7/16 
(36) 
6-7/8 (175)
4 (102) MIN.
14004062-001
18-1/4 (465) MP918B
20-1/2 (520) MP918A 
M27099
Actuator with Internal N.C. Trunnion Mounting Bracket
3/8 (10) CLEARANCE 
10-7/8
(275)
MP918A
8-1/2
(215)
MP918B
14004062-002 
18-3/4 (475) MP918B
21 (535) MP918A |
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M27100 |
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Actuator with Internal N.O. Trunnion Mounting Bracket
3-3/8 |
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(86) |
10-3/8 |
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REF. |
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(265) |
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MP918A |
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8 (205) |
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MP918B |
14004062-003 
18-3/4 (475) MP918B 
21 (535) MP918A |
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M27101 |
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Used for proportional control of mediumto large-size dampers in HVAC systems. The MP918A,B are rolling diaphragm, piston-type actuators. The MP918A has a positive positioner. Replacement devices are available for Johnson, Powers, Robertshaw, BarberColman, and older Honeywell actuator models.
•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.
Actuator Type: Damper
Actuator Force: High
Fail Safe Mode: Spring Return
Stroke: 3 1/2 in. (90 mm)
Diaphragm Effective Area: 23.8 sq in. (154 sq cm) Humidity Range: 5 to 95% RH
Approvals:
Underwriters Laboratories, Inc: Components Recognized: Report R18118
Accessories:
CCT2718-Threaded rod for shaft extension CCT2725-Rod coupling for shaft extension 14004062-001-External Trunnion Mounting Bracket 14004062-002-Internal N.C. Trunnion Mounting Bracket 14004062-003-Internal N.O. Trunnion Mounting Bracket
14004106-001-Actuator pushrod for conversion of internal N.C. to external
14004107-001-Crankarm Assembly for conversion from internal N.C. to external Trunnion mounting
14004210-001-Feedback Spring Kit includes orange spring (3 psi [21kPa]), yellow spring (5 psi [34 kPa]), and blue spring (10 psi [69 kPa]).
14004236-001-Coupler, actuator shaft to 5/16 in, 8 mm, pushrod 14004241-002-Hitch Pin (Six Sets)
14004242-001-MP918 Top Mount Operator Assembly 14004667-001-Offset Crank arm assembly with 2 screws (304725-062),
nuts (14004102-001), crank arm (14004655-001) for 1/2 in. Drive Axle
Replacement Parts:
14004264-001-MP918 Repair kit including Positive Positioner, bracket assembly and fittings
14004264-002-MP918 Positive Positioner Retrofit Kit - includes 10 psi feedback spring
<![endif]>Pneumatic
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70-6910 |
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701 |
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Pneumatic Damper Actuators
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Maximum |
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Temperature |
Operating |
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Range |
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Pressure |
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Spring Range |
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Product Number |
(F) |
(C) |
(psi) |
(kPa) |
Air Connections |
(psi) |
(kPa) |
Includes |
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MP918A1024/U |
-20 F to |
-29 C to |
25 psi |
172 kPa |
5/32 in. push-on barb |
Positive positioner |
Positive positioner |
14004062-001 - External Trunnion |
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+158 F |
+70 C |
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(Pilot), 1/4 in. push- |
10 psi span (5 psi |
69 kPa span |
Mounting Bracket with crankarm |
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on barb (main.) |
spring included) |
(34 kPa spring |
assembly. Positive Positioner |
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included) |
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MP918A1057/U |
-20 F to |
-29 C to |
25 psi |
172 kPa |
5/32 in. push-on barb |
Positive positioner |
Positive positioner |
14004062-002 - Internal N.C. |
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+158 F |
+70 C |
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(Pilot), 1/4 in. push- |
10 psi span (5 psi |
69 kPa span |
Trunnion Mounting Bracket with |
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on barb (main.) |
spring included) |
(34 kPa spring |
pushrod assembly. Positive |
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included) |
Positioner |
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MP918A1081/U |
-20 F to |
-29 C to |
25 psi |
172 kPa |
5/32 in. push-on barb |
Positive positioner |
Positive positioner |
14004062-003 - Internal N.O. |
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+158 F |
+70 C |
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(Pilot), 1/4 in. push- |
10 psi span (5 psi |
69 kPa span |
Trunnion Mounting Bracket with |
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on barb (main.) |
spring included) |
(34 kPa spring |
pushrod assembly. Positive |
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included) |
Positioner |
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MP918B1006/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
3 psi to 13 psi |
20 kPa to 90 kPa |
14004062-001 - External Trunnion |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Mounting Bracket with crankarm |
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assembly |
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MP918B1014/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
3 psi to 13 psi |
20 kPa to 90 kPa |
14004062-001 - Internal N.C. |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Trunnion Mounting Bracket with |
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pushrod assembly |
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MP918B1022/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
3 psi to 13 psi |
20 kPa to 90 kPa |
14004062-003 Internal N.O. |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Trunnion Mounting Bracket with |
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pushrod assembly |
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MP918B1030/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
3 psi to 13 psi |
20 kPa to 90 kPa |
Actuator only. No Mounting |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Bracket |
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MP918B1048/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
5 psi to 10 psi |
34 kPa to 69 kPa |
14004062-001 - External Trunnion |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Mounting Bracket with crankarm |
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assembly |
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MP918B1063/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
3 psi to 7 psi |
20 kPa to 48 kPa |
14004062-001 - External Trunnion |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Mounting Bracket with crankarm |
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assembly |
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MP918B1071/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
3 psi to 7 psi |
20 kPa to 48 kPa |
14004062-002 Internal N.C. |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Trunnion Mounting Bracket with |
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pushrod assembly |
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MP918B1089/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
8 psi to 13 psi |
55 kPa to 90 kPa |
14004062-001 - External Trunnion |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Mounting Bracket with crankarm |
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assembly |
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MP918B1097/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
8 psi to 13 psi |
55 kPa to 90 kPa |
14004062-002 Internal N.C. |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Trunnion Mounting Bracket with |
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pushrod assembly |
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MP918B1105/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
8 psi to 13 psi |
55 kPa to 90 kPa |
14004062-003 Internal N.O. |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Trunnion Mounting Bracket with |
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pushrod assembly |
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MP918B1113/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
8 psi to 13 psi |
55 kPa to 90 kPa |
Actuator only. No Mounting |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Bracket |
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MP918B1196/U |
-40 F to |
-40 C to |
29 psi |
200 kPa |
Barbed fitting for 1/4 |
8 psi to 13 psi |
55 kPa to 90 kPa |
14004062-001 - External Trunnion |
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+158 F |
+70 C |
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in. O.D. plastic tubing |
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Mounting Bracket with crankarm |
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assembly |
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702 |
customer.honeywell.com |
70-6910 |
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