Pressure Switches

Electric–Pneumatic Relays: Plastic

The EP101 series is a plastic 3-way valve with molded barbed connections for 1/4'' pneumatic tubing. They can be wall or panel mounted. Lighter and more compact than our EP201 series. Ports are marked 1-2-3. Flow is 600 SCIM at 20psi. The Pneuline models are an exact substitute for the brands on this selection chart:

PNEUMATIC RELAY CROSS-REFERENCE CHART
Pneuline Honeywell Barber-Colman Landis & Gyr Powers
EP101-24 RP818A1012 AL-180 265-1001
EP101-120 RP418A1107 AL-181 265-1002
EP101-208 RP418A1081 AL-182 265-1003
EP101-240 RP418A1099 AL-183 265-1004
EP101-277 RP418A1073 265-1005
EP101-480 RP418A1065 AL-185 265-1006
EP102-24 RP818B1010 AL-170 265-1007
EP102-120 RP418B1071 AL-171 265-1008

Part # Relay MFG Price  
265-1001 Siemens Powers $116.22 Add to Order
265-1002 Siemens Powers [Contact us for a price or a substitute]
265-1003 Siemens Powers [Contact us for a price or a substitute]
265-1004 Siemens Powers [Contact us for a price or a substitute]
265-1005 Siemens Powers [Contact us for a price or a substitute]
265-1006 Siemens Powers [Contact us for a price or a substitute]
265-1007 Siemens Powers [Contact us for a price or a substitute]
265-1008 Siemens Powers [Contact us for a price or a substitute]
AL-170 Barber-Colman $134.00 Add to Order
AL-171 Barber-Colman $134.00 Add to Order
AL-180 Barber-Colman $144.00 Add to Order
AL-181 Barber-Colman $144.00 Add to Order
AL-182 Barber-Colman [Contact us for a price or a substitute]
AL-183 Barber-Colman [Contact us for a price or a substitute]
AL-185 Barber-Colman [Contact us for a price or a substitute]
EP101-240 Pneuline [Contact us for a price or a substitute]
EP101-277 Pneuline [Contact us for a price or a substitute]
EP101-480 Pneuline [Contact us for a price or a substitute]
EP102-120 Pneuline [Contact us for a price or a substitute]
EP102-24 Pneuline [Contact us for a price or a substitute]
RP417A1009 Honeywell [Contact us for a price or a substitute]
RP417A1082 Honeywell [Contact us for a price or a substitute]
RP418A1065 Honeywell $154.44 Add to Order
RP418A1073 Honeywell $176.21 Add to Order
RP418A1081 Honeywell $139.34 Add to Order
RP418A1099 Honeywell $192.29 Add to Order
RP418A1107 Honeywell $107.22 Add to Order
RP418B1071 Honeywell $100.77 Add to Order
RP818A1012 Honeywell [Contact us for a price or a substitute]
RP818B1010 Honeywell $106.38 Add to Order

Electric–Pneumatic Relay: Metal

Change branch or main signals from one source or pressure to another with this compact, 3-way diverting solenoid valve. Ideal for occupied– unoccupied, outdoor changeover, summer–winter or many other uses.

The EP201 is a cast metal valve with 1/8'' NPT ports marked N.O., N.C., and common. Includes two barbed fittings for either 1/4'' or 5/32'' pneumatic tube. The Pneuline models are an exact substitute for the devices in this selection chart:

Part # Relay MFR Price  
AL-150 Barber-Colman $296.00 Add to Order
AL-151 Barber-Colman $296.00 Add to Order
AL-155 Barber-Colman [Contact us for a price or a substitute]
EP201-120 Pneuline $324.38 Add to Order
EP201-208 Pneuline $306.27 Add to Order
EP201-24 Pneuline $345.08 Add to Order
EP201-240 Pneuline $306.27 Add to Order
EP201-277 Pneuline $338.15 Add to Order
EP201-480 Pneuline $306.27 Add to Order
V-2410-1 Johnson Controls $534.23 Add to Order
V-2410-2 Johnson Controls $455.24 Add to Order
V-2410-3 Johnson Controls $405.74 Add to Order
V-2410-4 Johnson Controls $405.74 Add to Order
V-2410-5 Johnson Controls $426.09 Add to Order
V-2410-6 Johnson Controls $306.27 Add to Order
V11HAA-100 Johnson Controls $324.38 Add to Order
V11HBA-100 Johnson Controls $306.27 Add to Order
V11HCA-100 Johnson Controls $306.27 Add to Order
V11HDA-100 Johnson Controls $306.27 Add to Order
V11HFA-100 Johnson Controls $338.15 Add to Order
V11HGA-100 Johnson Controls $345.08 Add to Order
V11PNA-105 Johnson Controls $345.08 Add to Order
EP201-24DC Pneuline $345.08 Add to Order

Electric–Pneumatic Relay: Miniature

  • High capacity miniature EP relay
  • Metal body at a popular price
  • Compact size is convenient for panel mounting
  • For up to 120psi
  • 3-way, 1/8'' FPT connection

Part # Miniature EP Relay Price  
EP401-120 Miniature EP Relay 1/8" Threaded Connections [Contact us for a price or a substitute]
EP401-24 Miniature EP Relay 1/8" Threaded Connections [Contact us for a price or a substitute]
EP401-240 Miniature EP Relay 1/8" Threaded Connections [Contact us for a price or a substitute]
EP401-24dc Miniature EP Relay 1/8" Threaded Connections [Contact us for a price or a substitute]
HMPS-1200-121-SPL 1/4'' - 5/32'' barb x 1/8'' MPT Adapter $471.05 Add to Order

Pneumatic–Electric Relay: DPST

The PE201 closes or opens an electrical circuit using a predetermined air pressure signal. Typical applications includes the control of air conditioners, fans, electrical heating elements, ducts furnaces and more.

Connection: 1/4'' barb
Switch: 12A
Signal: 3 to 30 psi adjustable

Part # Switches Price  
PE201 Opens on drop $290.26 Add to Order
PE202 Opens on rise $305.24 Add to Order

Pneumatic–Electric Relay: SPDT

The PE301 series switches are SPDT snap switch activated by an adjustable pneumatic signal. Typical uses are to activate fans, heaters, pumps, chillers, alarms and more.

Connection: 1/4'' barb
Switch: 16A
Signal:
3 to 30 psi adjustable

Part # Stages Differential Price  
PE301-1 1 2 psi $167.13 Add to Order
PE301-2 2 2 psi $269.64 Add to Order
PE301-3 1 0.25 psi $184.56 Add to Order

Pneumatic–Electric Relay: Two-stage

The P10FC-4 provides two-stage pressure electric control for self-contained heating-cooling unit ventilators with mechanical refrigeration.

Connection: 1/4'' barb

  • Features two enclosed snap-acting SPDT switches with color-coded terminals
  • Includes a calibrated indicator scale for the high trip point

Part # 2-Stage EP Switch Price  
P10FC-4 Two-stage P/E switch $269.64 Add to Order

Johnson Controls Pneumatic–Electric Relay: Duplex

The P10PA provides continuous fan operation and damper control during day cycle and intermittent fan operation during night cycle. It has three normally closed SPST switches. Two of the switches are mechanically joined and operate together.

3-SPST 6A Switches: 1 opens high 6#, 2 & 3 open high 18#
Connection: 1/4'' barb
Signal: 3 to 30 psi adjustable

  • Three enclosed normally closed SPST switches
  • Factory calibration of the mechanically joined switches
  • Two calibrated indicator scales to display high trip points

Part # Duplex EP Switch Price  
P10PA-11 Duplex P/E switch $351.60 Add to Order

Pneumatic Relays

Pneumatic relays perform very useful functions in control systems. All brands work in the same pneumatic signals and can be easily interchanged. Don’t be stuck on a single brand. Pneuline Controls perform the same function just as reliably as brands costing more than double. Standardize and stock one model and use it as your universal replacement. This chart will show you the Pneuline model you need.

PNEUMATIC RELAY SELECTION CHART
Relay Type Pneuline Powers Kreuter Johnson Honeywell
Diverting-Switching RPP100 243-0001 RCC-1009 V-6135-1 RP670A1001
HI-Pressure Selector RPP400 243-0018 RCC-1008 C-5226-3 RP470A1003
Low-Pressure Selector RPP500 243-0020 RCC-1006 C-5226-3 RP970A1008
Hi & Lo Pressure Selector RPP900 243-0019 RCC-1111 C-2220 RP913A1008
Booster-Repeater Ratio-1:1 RPP700 243-0009 RCC-1516 R-2080-1 RP970A1008
Reversing RPP300 RCC-1504 R-3030-1 RP972A1006
Min. Position C-5230-2 SP970A1005
Averaging RPP800 243-0011 RCC-1514 C-2040-1 RP973A1013

Part # MFG Relay Type Price  
243-0001 Powers Diverting-Switching $331.24 Add to Order
243-0009 Powers Booster-Repeater Ratio-1:1 $470.41 Add to Order
243-0011 Powers Averaging $464.92 Add to Order
243-0018 Powers HI-Pressure Selector $152.83 Add to Order
243-0019 Powers Hi & Lo Pressure Selector $430.50 Add to Order
243-0020 Powers Low-Pressure Selector $99.02 Add to Order
C-2040-1 Johnson Averaging $458.01 Add to Order
C-5226-3 Johnson Low-Pressure Selector $107.01 Add to Order
C-5230-2 Johnson Min. Position $280.95 Add to Order
R-2080-1 Johnson Booster-Repeater Ratio-1:1 $287.61 Add to Order
R-3030-1 Johnson Reversing $418.85 Add to Order
RCC-1006 Kreuter Low-Pressure Selector $27.77 Add to Order
RCC-1008 Kreuter HI-Pressure Selector $26.47 Add to Order
RCC-1009 Kreuter Diverting-Switching $83.06 Add to Order
RCC-1111 Kreuter Hi & Lo Pressure Selector $114.65 Add to Order
RCC-1504 Kreuter Reversing $145.94 Add to Order
RCC-1514 Kreuter Averaging [Contact us for a price or a substitute]
RCC-1516 Kreuter Booster-Repeater Ratio-1:1 [Contact us for a price or a substitute]
RP470A1003 Honeywell HI-Pressure Selector $76.03 Add to Order
RP670A1001 Honeywell Diverting-Switching $125.26 Add to Order
RP913A1008 Honeywell Hi & Lo Pressure Selector $338.19 Add to Order
RP970A1008 Honeywell Booster-Repeater Ratio-1:1 $120.58 Add to Order
RP972A1006 Honeywell Reversing $123.65 Add to Order
RP973A1013 Honeywell Averaging [Contact us for a price or a substitute]
RPP100 Pneuline Diverting-Switching $83.06 Add to Order
RPP300 Pneuline Reversing $145.94 Add to Order
RPP400 Pneuline HI-Pressure Selector $26.47 Add to Order
RPP500 Pneuline Low-Pressure Selector $27.77 Add to Order
RPP700 Pneuline Booster-Repeater Ratio-1:1 [Contact us for a price or a substitute]
RPP800 Pneuline Averaging [Contact us for a price or a substitute]
RPP900 Pneuline Hi & Lo Pressure Selector $114.65 Add to Order
SP970A1005 Honeywell Min. Position $112.87 Add to Order
V-6135-1 Johnson Diverting-Switching $468.27 Add to Order
HMPS-100-23-SCS Johnson Hi & Lo Pressure Selector $200.44 Add to Order

Differential Pressure Switch

The Differential Pressure Switch senses the operation of fans or blowers associated with ducted ventilation systems, and static pressure drop across filters. Pressure differentials as small as .05" W.C. are sufficient to actuate the SPDT contacts, which operate remote status indicators, alarms, control circuits or other devices.

  • Responds to positive, negative, or differential air pressure
  • Furnished with one 6'' piece 1/4'' O.D. flexible tubing, nuts, and ferrules.
  • Can be mounted in any position
  • 1/4'' compression connections

Part # Diff Pressure Switch Price  
A301 Static pressure tip $9.90 Add to Order
AFS-460 SPST, 15A with manual reset on overpressure  $91.00 Add to Order
DP222 SPDT, 10A $25.00 Add to Order

Pneumatic Differential Pressure Switch

Low Pressure In - Pneumatic Out

The PDP300 switch senses the flow of air in ducts or where differential pressure exists. Fan interlocking is very common. It includes a bracket for direct or surface mounting.

  • Connections: High-1/8" FPT, Lo-1/8" FPT, Out-1/4" Barb
  • Max. Pressure: 1 psig

Part # Pneumatic Differential Pressure Switch Price  
PDP300 .12 to 2.0" WC-Close High $1,446.99 Add to Order
SP401 4" flanged sensing tube, 2 fittings and gasket $37.38 Add to Order

Air Flow Pressure Switch

Low Pressure In - SPDT Out

This switch provides low or line voltage control of pressure for air and noncombustible gases. It controls static pressure, differential static pressure, velocity pressure, total pressure, or differential total pressure.

Part # Desc Input Output Price  
PC-301 Low Pressure Switch 0.07 to 1.0 in WC SPDT-6A $198.00 Add to Order

Air Flow Pressure Switch

Low Pressure In - SPDT Floating Out

These switches are used with reversible electric actuators to control differential pressures, low static pressures, or air velocities in duct systems.

Connection: 3/8'' O.D. Barb

Don’t Forget …
When installing these pressure switches, you’ll need sensing tubes, fittings and tubing.

Part # Range (in WC) Velocity (fpm) Price  
PF-305 -0.5 to +0.5 400 to 2800 $872.00 Add to Order
PF-306 0.2 to 1.3 1800 to 4600 $872.00 Add to Order
PF-307 1.1 to 3.5 4200 to 7500 $872.00 Add to Order
PF-308 3.2 to 10 7200 to 14000 [Contact us for a price or a substitute]

Universal Pneumatic Gradual Switch

This manual switch is used to provide a variable pneumatic signal to any brand of pneumatic device. Used for remote positioning or as a testing device.

Part # Grad Switch Price  
HDO-1101 BLANK, Scale plates not included [Contact us for a price or a substitute]
HDO-1102 0 to 100%, Scale plates not included $7.34 Add to Order
HDO-1103 Increase CW Arrow, Scale plates not included [Contact us for a price or a substitute]
YMC-1001 Pne. Grad. Switch [Contact us for a price or a substitute]

2 Position Pneumatic Selector Switches

This manual selector switch is used to direct one or two signals to either one of two ports. Ten scale plates available to perform a variety of functions. Vented and non-vented models are available.

Part # 2-Pos Selector Switch Price  
HDO-1201 Occ-Unocc, Scale plates not included $7.34 Add to Order
HDO-1202 Summer-Winter, Scale plates not included [Contact us for a price or a substitute]
HDO-1203 On-Off, Scale plates not included $7.34 Add to Order
HDO-1205 Open-Close, Scale plates not included [Contact us for a price or a substitute]
HDO-1206 1-2, Scale plates not included $7.34 Add to Order
HDO-1207 Day-Night, Scale plates not included $7.34 Add to Order
HDO-1208 Heat-Cool, Scale plates not included [Contact us for a price or a substitute]
HDO-1209 Manual-Auto, Scale plates not included [Contact us for a price or a substitute]
YMC-2001 DPDT-Non-Vented [Contact us for a price or a substitute]
YMC-2002 DPDT-Vented [Contact us for a price or a substitute]

3 Position Pneumatic Selector Switches

This manual selector switch is used to switch a pneumatic signal to one of three ports. Eight scale plates available to perform a variety of functions. Vented and non-vented models available.

Part # 3-Pos Selector Switch Price  
HDO-1301 1-2-3, Scale plates not included [Contact us for a price or a substitute]
HDO-1302 On-Auto-Off, Scale plates not included $7.34 Add to Order
HDO-1303 Day-Auto-Night, Scale plates not included $7.34 Add to Order
HDO-1305 Heat-Auto-Cool, Scale plates not included [Contact us for a price or a substitute]
HDO-1306 Summ.-Auto-Wint., Scale plates not included [Contact us for a price or a substitute]
HDO-1307 Open-Auto-Close, Scale plates not included $7.34 Add to Order
YMC-3001 3 Position Non-Vent [Contact us for a price or a substitute]
YMC-3002 3 Position Vented [Contact us for a price or a substitute]

6 Position Pneumatic Selector Switch

This manual selector switch can be used to switch a pneumatic signal to one of six ports. It’s economical cost make it a good choice for any multiple switching function of six or less positions.

Part # 6-Pos Selector Switch Price  
HDO-1601 1-2-3-4-5-6, Scale plates not included $7.34 Add to Order
YMC-6001 6-Pos. Non-Vented [Contact us for a price or a substitute]
[Contact us for a price or a substitute]
[Contact us for a price or a substitute]
[Contact us for a price or a substitute]
[Contact us for a price or a substitute]
[Contact us for a price or a substitute]
[Contact us for a price or a substitute]
[Contact us for a price or a substitute]
[Contact us for a price or a substitute]
[Contact us for a price or a substitute]
1 2 3 4 5 6