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Schneider Electric MK4-3xxx Series Pneumatic Damper Actuators

Pneumatic Damper Actuators
MK4-3xxx Series

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Cat #(kPa)(psig)Starting Pressure psigStarting Pressure kPain. (mm)Based on 1.5 psi (10 kPa) Pressure to Actuator lb (N)15 psi (103 kPa) Supply Dual Press. System lb (N)15 psi (103 kPa) Supply Single Press. System **** lb (N)20 psi (138 kPa) Supply Single or Dual Press. System **** lb (N)15 psi (103 kPa) Supply Dual Press. System lb-in. (N-m)15 psi (103 kPa) Supply Single Press. System **** lb-in. (N-m)20 psi (138 kPa) Supply Single or Dual Press. System **** lb-in. (N-m)
MK4-3121*****55 to908 to 138 ±155 ±73-1/2 (89), adjustable 2 to 4 (51 to102)52(231)4(18)16(71)56(249)7(0.79)28(3.16)91(10.28)
MK4-3821*****55 to908 to 138 ±155 ±13-1/2 (89), adjustable 2 to 4 (51 to102)52(231)4(18)16(71)56(249)7(0.79)28(3.16)91(10.28)
Construction:
Housing: Die cast aluminum
Diaphragm: Beaded molded neoprene
Stroke: Refer to Model Chart
Nominal Damper Area: Actuator sizing should be done in accordance with damper manufacturer’s specifications
Start point: Adjustable on most models ±1 psi, refer to Model Chart
Spring: Retracts actuator shaft on loss of air pressure
Maximum air pressure: 30 psig (207 kPa)
Ambient temperature limits:
Shipping: -40 to 160°F (-40 to 71°C)
Operating: -20 to 160°F (-29 to 71°C)
Air connections: 1/8 in. FNPT
Mounting: In any position. Mounting bracket and connector for 5/16 in. (8 mm) diameter push rod included with actuator
Dimensions:
MK-3100, MK4-3100 Series: 12 L x 5-7/8 W x 5-1/2 D in. (305 x 149 x 140 mm)
MK-3800 Series: 20-3/16 L x 7-1/4 W x 6-1/2 D in. (513 x 184 x 165 mm)

 



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