The Honeywell MP904A5047, also cataloged as the MP904A5047 Pneumatic Motor, operates as a dedicated hardware component for mechanical valve and damper actuation execution within pneumatic control platforms.
Hardware Specifications
Parameter
Specification
Model
MP904A5047
Brand
Honeywell
Origin
USA
Weight
12.00 lbs (5.44 kg)
Dimensions
Standard pneumatic actuator frame footprint
Operating Temp
-20 to +66 deg C
Power Consumption
Pneumatic air driven (0 Watts electrical)
Maximum Operating Pressure
140 kPa (20 psi)
Maximum Safe Air Pressure
210 kPa (30 psi)
Actuator Stroke
90 mm (3.5 inches)
Air Connection Interface
Barb fitting for 6 mm (1/4 in) O.D. polyethylene tubing
Process Control & Pneumatic Actuation Performance
Engineered for reliable mechanical positioning, the MP904A5047 translates variable pneumatic control signals into linear mechanical displacement across a full 90 mm stroke length. Operating at a standard maximum working pressure of 140 kPa, the motor interfaces cleanly with 4-20 mA HART I/P positioners or central pneumatic controllers to modulate final control elements. Internal diaphragm and return spring assemblies maintain linear force delivery while resisting pressure fluctuations up to a maximum safe limit of 210 kPa.
Frequently Asked Questions
Q: What air supply tubing dimensions are required to connect to the MP904A5047 pneumatic port?
A: The pneumatic connection features an integrated barb fitting designed specifically for 6 mm (1/4 in) outer diameter polyethylene air tubing.
Q: What is the maximum safe air pressure rating to prevent internal diaphragm damage?
A: The maximum safe air supply limit for the MP904A5047 is 210 kPa (30 psi); operating pressure should not exceed the nominal 140 kPa rating.
Field Installation Guidelines
Isolate the main compressed air header and depressurize the pneumatic line prior to installing or servicing the actuator assembly.
Mount the motor frame securely to the valve body or damper mounting bracket using heavy-duty bolts to withstand mechanical actuation forces.
Align and couple the 90 mm stroke drive shaft to the valve stem or linkage, ensuring zero angular binding across the full travel range.
Push clean 6 mm (1/4 in) polyethylene tubing firmly onto the barb fitting until fully seated, verifying leak-free pneumatic sealing.
Apply regulated instrument air slowly and check for smooth stem movement without mechanical binding across the complete 0 to 140 kPa operating range.
