Barber Colman Pneumatic Actuators

Robertshaw Pneumatic Damper Actuators

Robertshaw Damper Actuators are used in pneumatic control systems to position air dampers. These actuators can be used for both a gradual or positive action. Actuators include right angle mounting bracket, ball joint, crankarm, and push rod.

Part # Acc & Repair Parts  
21-840 2" Diaphragm Call... Add to Order
21-841 3" Diaphragm Call... Add to Order
21-842 4" Diaphragm Call... Add to Order
CMC-1001 PLASTIC POSITIONER KIT Call... Add to Order
VTD-2250 Feedback Spring- 5# plastic Call... Add to Order
VTD-2253 Feedback Spring- 5# metal Call... Add to Order
VTD-2260 Feedback Spring- 10# span Call... Add to Order

Barber Colman Pneumatic Damper Actuators

Proportional pneumatic actuator used to control dampers, mixing boxes, air valves, etc., for heating, ventilating and air conditioning systems. Mounting bracket included with actuator.

Part # Spring Damper  
MK-3101 3-8# 11-15 sq. ft Call... Add to Order
MK-3111 5-10# 11-15 sq. ft Call... Add to Order
MK-3121 8-13# 11-15 sq. ft Call... Add to Order
MK4-3121 8-13# w/pos 11-15 sq. ft Call... Add to Order
MK-4401 3-8# 4-5 sq. ft. Call... Add to Order
MK-4411 5-10# 4-5 sq. ft. Call... Add to Order
MK-4421 8-13# 4-5 sq. ft. Call... Add to Order
MK4-7121 8-13# w/pos 37 sq. ft Call... Add to Order
MK-7101 3-8# 37 sq. ft Call... Add to Order
MK-7121 8-13# 37 sq. ft Call... Add to Order
AK-42309-500 - Positioner Call... Add to Order

Barber Colman Two-way Straight Valves

These compact Diaphragm Control Valve Assemblies are designed:

  • for the control of hot or chilled water, or low pressure steam
  • to permit installation within a small enclosure
  • to be used for exposed fin tube converters or cast iron radiators
SPECIFICATIONS
Flow Equal Percentage
Maximum Pressure 150psi: Hot Water 35psi: Steam
Connection Inlet: FPT Outlet: MPT Union
Part # Size Cv Spring Ranges  
VK-7211-201-4-04 1/2" 4.4 3-7# N.O. Call... Add to Order
VK-7211-201-4-06 3/4" 7.5 3-7# N.O. Call... Add to Order
VK-7211-201-4-08 1" 14 3-7# N.O. Call... Add to Order
VK-7211-201-4-09 1-1/4" 20 3-7# N.O. Call... Add to Order
VK-7211-202-4-04 1/2" 4.4 5-10# N.O. Call... Add to Order
VK-7211-202-4-06 3/4" 7.5 5-10# N.O. Call... Add to Order
VK-7211-202-4-08 1" 14 5-10# N.O. Call... Add to Order
VK-7211-202-4-09 1-1/4" 20 5-10# N.O. Call... Add to Order
VK-7211-203-4-04 1/2" 4.4 8-13# N.O. Call... Add to Order
VK-7211-203-4-06 3/4" 7.5 8-13# N.O. Call... Add to Order
VK-7211-203-4-08 1" 14 8-13# N.O. Call... Add to Order
VK-7211-203-4-09 1-1/4" 20 8-13# N.O. Call... Add to Order
VK-7221-202-4-04 1/2" 4.4 5-10# N.C. Call... Add to Order
VK-7221-202-4-06 3/4" 7.5 5-10# N.C. Call... Add to Order
VK-7221-202-4-08 1" 14 5-10# N.C. Call... Add to Order
VK-7221-202-4-09 1-1/4" 20 5-10# N.C. Call... Add to Order
VK-7221-203-4-04 1/2" 4.4 8-13# N.C. Call... Add to Order
VK-7221-203-4-06 3/4" 7.5 8-13# N.C. Call... Add to Order
VK-7221-203-4-08 1" 14 8-13# N.C. Call... Add to Order
VK-7221-203-4-09 1-1/4" 20 8-13# N.C. Call... Add to Order

Barber Colman Two-way Angle Valves

SPECIFICATIONS
Flow Equal Percentage
Maximum Pressure 150psi: Hot Water 35psi: Steam
Connection Inlet: FPT Outlet: MPT Union
Part # Size Cv Range  
VK-7211-201-3-04 1/2" 5 3-7# Call... Add to Order
VK-7211-201-3-06 3/4" 8.5 3-7# Call... Add to Order
VK-7211-201-3-08 1" 16 3-7# Call... Add to Order
VK-7211-201-3-09 1-1/4" 22 3-7# Call... Add to Order
VK-7211-203-3-04 1/2" 5 8-13# Call... Add to Order
VK-7211-203-3-06 3/4" 8.5 8-13# Call... Add to Order
VK-7211-203-3-08 1" 16 8-13# Call... Add to Order
VK-7211-203-3-09 1-1/4" 22 8-13# Call... Add to Order

Barber Colman Oval Pneumatic Valve Actuator

For compact actuation of 1/2'' through 1-1/4'' Barber-Colman valves. Has 6 sq. in. diaphragm area. For new installations, the AV-400 linkage kit is required.

Part # Oval Pneumatic Valve Actuator  
MK-2690 Oval Pneumatic Valve Actuator Call... Add to Order
AV-400 Valve Linkage Kit with 3-7#(yellow), 5-10#(black), and 5-13#(blue) springs included Call... Add to Order
PNV-102-1 Replacement Diaphragm Call... Add to Order

Barber Colman Pneumatic Actuators for Medium Valves

For Medium Duty (11 sq. in. diaphragm) pneumatic actuation of 1-1/2" to 2" Barber-Colman valves.

Part # Range Valve Size  
MK-4601 3-6# 1/2" to 1-1/4" Call... Add to Order
MK-4611 5-10# 1/2" to 1-1/4" Call... Add to Order
MK-4621 10-13# 1/2" to 1-1/4" Call... Add to Order
AV-401 Linkage for MK-46XX series - Call... Add to Order
PNV-002 Replacement Diaphragm - Call... Add to Order

Barber Colman Pneumatic Actuators for Large Valves

For Larger Valves (50 sq. in. diaphragm) to actuate 2-1/2" to 6" pneumatic valves

b - Used on VB-9323-0-5-14,15,16 valve bodies only.

Part # Stroke Range  
MK-6801 1" 3-6# Call... Add to Order
MK-6811 1" 5-10# Call... Add to Order
MK-6821 1" 10-13# Call... Add to Order
MK-6911 1-1/2" 5-10# Call... Add to Order
AV-430 - Linkage for VB-9xx3 and VB-9xx4 (1-1/2", 2"), VB-9232 (1-1/2" to 6") Call... Add to Order
AV-495 - For VB-9313, VB-9323 Call... Add to Order
PNV-202 - Replacement Diaphragm Call... Add to Order

Barber Colman Heavy Duty Pneumatic Valve Actuators

For Higher Closeoff Needs (100 sq. in. diaphragm), this actuator will operate pneumatic valves from 2.5" to 6".

Part # Range Description  
MK-8801 3-8# 1" Stroke for 2-1/2" to 4" Valves Call... Add to Order
MK-8811 5-10# 1" Stroke for 2-1/2" to 4" Valves Call... Add to Order
MK-8821 8-13# 1" Stroke for 2-1/2" to 4" Valves Call... Add to Order
MK-8901 3-8# 2" Stroke for 5" and 6" Valves Call... Add to Order
MK-8911 5-10# 2" Stroke for 5" and 6" Valves Call... Add to Order
MK-8921 8-13# 2" Stroke for 5" and 6" Valves Call... Add to Order
AV-496 - Valve Linkage Call... Add to Order
PNV-312 - Rolling Diaphragm Call... Add to Order