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HVAC and Refrigeration

98 Results Found that Include 156 Products

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Results per page: 16 | 32 | 48
Calibration/Wrench Kit
Solenoid Air Valve,3-Way,120VAC,1-20 psi
  • SIEMENS
  • Solenoid Air Valve, 3-Way, 120VAC, 1-20 psiSolenoid Air Valve,3-Way,120VAC,1-20 psi
  • Item # 44C453
  • Mfr. Model # 265-1028
  • Solenoid Air Valve, Normally Closed, Control Air Pressure 1 to 20 psi, 1/4 In. Barb Air Connections, Max. Air...More

Relative Humidity Duct Sensor,24VAC
  • SIEMENS
  • Relative Humidity Duct Sensor, 24VACRelative Humidity Duct Sensor,24VAC
  • Item # 5WYF0
  • Mfr. Model # QFM2100
  • Humidity Duct Sensor, For Use With 0 - 10Vdc Controller Inputs, Color White, Height (In.) 1.625, Width (In.)...More

Room Sensor,Setpoint,Fahrenheit,Beige
Solenoid Air Valve,3-Way,120VAC,0-50 psi
  • SIEMENS
  • Solenoid Air Valve, 3-Way, 120VAC, 0-50 psiSolenoid Air Valve,3-Way,120VAC,0-50 psi
  • Item # 4E725
  • Mfr. Model # 265-1022
  • Solenoid Air Valve, Normally Open/Normally Closed, Control Air Pressure 0 to 50 psi, 1/4 In. Barb Air...More

Room Sensor,Setpoint,Fahrenheit,White
Reverse Acting Relay,Pneumatic,30 PSI
  • SIEMENS
  • Reverse Acting Relay, Pneumatic, 30 PSIReverse Acting Relay,Pneumatic,30 PSI
  • Item # 2KGR5
  • Mfr. Model # 243-0024
  • Reverse Acting Relay, Pneumatic, Pressure Range 30 PSI, 1/4 In Barb, Max Air Pressure 30 PSI, Capacity 29...More

Valve And Actuator,Pneumatic,Pipe 1/2 In
  • SIEMENS
  • Valve And Actuator, Pneumatic, Pipe 1/2 InValve And Actuator,Pneumatic,Pipe 1/2 In
  • Item # 2KGR2
  • Mfr. Model # 257-02041
  • Valve And Actuator, Pneumatic, Pipe 1/2 In, Valve Body Material Bronze, Width 4 In, Height 4 In, Valve Type...More

Airflow Switch,Auto Reset,SPDT
  • SIEMENS
  • Airflow Switch, Auto Reset, SPDTAirflow Switch,Auto Reset,SPDT
  • Item # 2KGR4
  • Mfr. Model # 141-0574
  • Airflow Switch, Auto Reset, Differential 0.06 To 0.6 WC, SPDT Switch Type, Pressure Setting Range 0.05 To 1.0...More

Valve,Pneumatic,1/2 In
  • SIEMENS
  • Valve, Pneumatic, 1/2 InValve,Pneumatic,1/2 In
  • Item # 6YC71
  • Mfr. Model # 257-02038
  • Pneumatic Valve, Valve Size 1/2 Inch, Coefficient of Volume 2.5, Maximum Pressure 15 PSI, Spring Range 3-8...More

Pneumatic T-Stat Cover,Beige
  • SIEMENS
  • Pneumatic T-Stat Cover, BeigePneumatic T-Stat Cover,Beige
  • Item # 4E679
  • Mfr. Model # 192-256
  • Pneumatic Thermostat Cover, Plastic, Height 3 1/4 In, Width 2 1/4 In, Depth 1 1/2 In, For Use With 190 Series...More

Valve,Pneumatic,3/4 In
  • SIEMENS
  • Valve, Pneumatic, 3/4 InValve,Pneumatic,3/4 In
  • Item # 6YC72
  • Mfr. Model # 257-02044
  • Pneumatic Valve, Valve Size 3/4 Inch, Coefficient of Volume 6.3, Maximum Pressure 15 PSI, Spring Range 3-8...More

Room Sensor,Setpoint,Override,Beige
Valve,Pneumatic,1/2 In
  • SIEMENS
  • Valve, Pneumatic, 1/2 InValve,Pneumatic,1/2 In
  • Item # 6YC73
  • Mfr. Model # 258-02069
  • Pneumatic Valve, Valve Size 1/2 Inch, Coefficient of Volume 4, Maximum Pressure 15 PSI, Spring Range 8-13...More

Pneu Temp Transmitter,DA,30 to 180F
  • SIEMENS
  • Pneu Temp Transmitter, DA, 30 to 180FPneu Temp Transmitter,DA,30 to 180F
  • Item # 4E683
  • Mfr. Model # 356-0750
  • Pneumatic Temperature Transmitter, Direct Acting, Max. Air Pressure 30 psi, Max. Ambient Temp. 225 Degrees F,...More

Zone Valve,Globe, 1/2 in. NPT
  • SIEMENS
  • Zone Valve, Globe, 1/2 in. NPTZone Valve,Globe, 1/2 in. NPT
  • Item # 25DW44
  • Mfr. Model # 257-02039
  • Zone Valve, Globe, Height (In.) 11, Width (In.) 4, Depth (In.) 1-1/2, 2.5, 45, 250, 0, Spring Return, For Use...More

Pneumatic T-Stat Cover
  • SIEMENS
  • Pneumatic T-Stat CoverPneumatic T-Stat Cover
  • Item # 4E680
  • Mfr. Model # 192-262
  • Pneumatic Thermostat Cover, Plastic, Height 3 1/4 In, Width 2 1/4 In, Depth 1 1/2 In, For Use With 190 Series...More

Threaded Globe Valve,1/2 In,24VAC,NO
  • SIEMENS
  • Threaded Globe Valve, 1/2 In, 24VAC, NOThreaded Globe Valve,1/2 In,24VAC,NO
  • Item # 5GED3
  • Mfr. Model # 243-00211
  • Threaded Globe Valve, Normally Open, Height 4 1/4 In., Width 11 1/4 In., Depth 2 In., Voltage 24VAC, For Use...More

Pressure Signal Selector, Pneumatic Type
  • SIEMENS
  • Pressure Signal Selector, Pneumatic TypePressure Signal Selector, Pneumatic Type
  • Item # 2KGR6
  • Mfr. Model # 243-0019
  • Pressure Signal Selector, Pneumatic Type, Air Consumption 44 SCFM, Max Safe Air PSI 30, Max Safe Operating...More

Air Velocity Sensor,24VAC
  • SIEMENS
  • Air Velocity Sensor, 24VACAir Velocity Sensor,24VAC
  • Item # 5WYF1
  • Mfr. Model # QVM62.1
  • Air Velocity Sensor, For Use With Modulating Fan Control, Color White, Height (In.) 1.75, Width (In.) 4.5,...More

Switch, Auxiliary External
  • SIEMENS
  • Switch, Auxiliary ExternalSwitch, Auxiliary External
  • Item # 2WXU8
  • Mfr. Model # ASC77.2U
  • Switch, Auxiliary Switch Kit External, Full Load Amps 2, Locked Rotor Amps 12, Input Voltage 24 to 250, Depth...More

Duct CO2 Sensor,24VAC
  • SIEMENS
  • Duct CO2 Sensor, 24VACDuct CO2 Sensor,24VAC
  • Item # 5WYE9
  • Mfr. Model # QPM2100
  • CO2 Duct Sensor, For Use With 0 - 10Vdc Controller Inputs, Color White, Height (In.) 1.625, Width (In.) 1.25,...More

Controller,Receiver
  • SIEMENS
  • Controller, ReceiverController,Receiver
  • Item # 4E685
  • Mfr. Model # 195-0003
  • Pneumatic Receiver Controller, Pressure Rating Operating 22, Maximum 30 PSI, Air Consumption 60 SCIM, Input...More

Pneumatic Valve Actuator,10 to 15 Spring
  • SIEMENS
  • Pneumatic Valve Actuator, 10 to 15 SpringPneumatic Valve Actuator,10 to 15 Spring
  • Item # 25DW56
  • Mfr. Model # 599-01088
  • Pneumatic Valve Actuator, Operating PSI Range 3 to 8, 8 to 13, 10 to 15, Max. Air Pressure 35 psi, Stroke...More

Room Sensor,Series 1000,Logo,White
Valve,Pneumatic,1/2 In
  • SIEMENS
  • Valve, Pneumatic, 1/2 InValve,Pneumatic,1/2 In
  • Item # 6YC70
  • Mfr. Model # 256-02008
  • Pneumatic Valve, Valve Size 1/2 Inch, Coefficient of Volume 2.5, Maximum Pressure 15 PSI, Spring Range 10-15...More

Room Sensor,Series 1000,Logo,Beige
Results per page: 16 | 32 | 48
Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More