Pressure Switches

Transcat distributes the most reliable pressure switches for general purpose, air/water, gas and differential applications. The pressure switch will detect changes and open or close an electrical contact according to a predetermined set point. Differential switches sense pressure from both a low and a high pressure port and respond to the difference. Switches may be categorized according to their technology, such as diaphragm or piston. Our pressure device selection features switches with a wide scope of ranges to support virtually every application. We also offer Dwyer switch/gage combination instruments that measure and control positive, negative or differential pressures of air and gases.

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  1. Clearance
    Mid-West Instrument 120AA
    Mid-West Instrument 120AA Piston Differential Pressure Switch,15PSID
    Order #: 120AA-00-ACA-15 PSID
    Mfg #: 120AA-00-ACA-15 PSID
    Availability: In stock
    Special Price $213.92 Regular Price $389.20
    Piston Differential Pressure Switch,15PSID Learn More
  2. Ashcroft B4
    Ashcroft B420B/30PSI Ashcroft Pressure Switch, 30psi Buna-N, 1/4npt Female
    Order #: B420B/30PSI
    Mfg #: B420B/30PSI
    Availability: In stock
    Special Price $298.57 Regular Price $333.61
    Ashcroft Pressure Switch, 30psi Buna-N, 1/4npt Female Learn More
  3. Ashcroft NPIN4DLS02XEA Pressure Switch,60PSI,1/4"NPT SPDT,120V,External Adjustment
    Ashcroft NPIN4DLS02XEA Pressure Switch,60PSI,1/4"NPT SPDT,120V,External Adjustment
    Order #: NPIN4DLS02XEA-60PSI
    Mfg #: NPIN4DLS02XEA-60PSI
    Availability: Call for availability
    Special Price $1,023.79 Regular Price $1,089.14
    Pressure Switch,60PSI,1/4"NPT SPDT,120V,External Adjustment Learn More
  4. Lincoln Industrial 234-10330-4
    Lincoln Industrial 234-10330-4 Digital Pressure Switch for Single-line Lubrication Systems
    Order #: 234-10330-4
    Mfg #: 234-10330-4
    Availability: Call for availability
    $1,022.15
    Digital Pressure Switch for Single-line Lubrication Systems Learn More
  5. Meriam 1226
    Meriam 1226 Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS
    Order #: Z1226-2-A
    Mfg #: Z1226-2-A
    Availability: Call for availability
    $4,899.28
    Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS Learn More
  6. Newport Electronics SW143-8-M
    Omega Engineering SW143 3-Pole,1/4"DIN Selector Switch
    Order #: SW143-8-M
    Mfg #: SW143-8-M
    Availability: Call for availability
    $272.15
    3-Pole,1/4"DIN Selector Switch Learn More
  7. Ashcroft B7
    Ashcroft B768SXNH/200PSI Pressure Switch, 200 psi Blank Tag, Welded STS, 1/4npt-F
    Order #: B768SXNH/200PSI
    Mfg #: B768SXNH/200PSI
    Availability: Call for availability
    Special Price $1,095.41 Regular Price $1,223.92
    Pressure Switch, 200 psi Blank Tag, Welded STS, 1/4npt-F Learn More
  8. Ashcroft B7
    Ashcroft B724-S-XFM-400PSIG Pressure Switch,400PSIG,Welded Stainless,FM Approval
    Order #: B724-S-XFM-400PSIG
    Mfg #: B724-S-XFM-400PSIG
    Availability: Call for availability
    Special Price $728.23 Regular Price $813.67
    Pressure Switch,400PSIG,Welded Stainless,FM Approval Learn More
  9. Ashcroft T2
    Ashcroft T2 Pressure Transducer,750PSI 1/4"NPTM,0-5VDC
    Order #: T27M0205F3750G
    Mfg #: T27M0205F3750G
    Availability: Call for availability
    Special Price $432.29 Regular Price $483.01
    Pressure Transducer,750PSI 1/4"NPTM,0-5VDC Learn More
  10. Ashcroft B4
    Ashcroft B4 Pressure Switch,200PSI Factory Set Point,AC,Viton
    Order #: B420V-XFS-200PSI
    Mfg #: B420V-XFS-200PSI
    Availability: Call for availability
    Special Price $353.34 Regular Price $394.80
    Pressure Switch,200PSI Factory Set Point,AC,Viton Learn More
  11. Meriam 1224
    Meriam Z1224-1-B Differential Pressure Indicator, Custom Configuration
    Order #: Z1224-1-B
    Mfg #: Z1224-1-B
    Availability: Call for availability
    $5,810.00
    Differential Pressure Indicator, Custom Configuration Learn More
  12. Ashcroft B7
    Ashcroft B7 Pressure Switch,14 Bar,ATEX Belleville,SS Tag,Metric
    Order #: B732BXCNG3K3NHMD/14BAR
    Mfg #: B732BXCNG3K3NHMD/14BAR
    Availability: Call for availability
    Special Price $1,031.53 Regular Price $1,152.55
    Pressure Switch,14 Bar,ATEX Belleville,SS Tag,Metric Learn More
  13. Ashcroft B7
    Ashcroft B7 Pressure Switch,200PSI Narrow Deadband
    Order #: B720B200PSI
    Mfg #: B720B200PSI
    Availability: Call for availability
    Special Price $628.93 Regular Price $702.72
    Pressure Switch,200PSI Narrow Deadband Learn More
  14. Ashcroft NPI
    Ashcroft NPI Electronic Pressure Switch 300PSI,/4"NPTM,250VAC,SPDT
    Order #: NPI-N4-D-V-S02XEA-300PSI
    Mfg #: NPI-N4-D-V-S02XEA-300PSI
    Availability: Call for availability
    Special Price $1,072.68 Regular Price $1,198.53
    Electronic Pressure Switch 300PSI,/4"NPTM,250VAC,SPDT Learn More
  15. Ashcroft PPAN
    Ashcroft P Epoxy Coated, Explosion Proof Pressure Switch, 400psi
    Order #: PPAN7HV25/400PSI
    Mfg #: PPAN7HV25/400PSI
    Availability: Call for availability
    Special Price $838.82 Regular Price $937.23
    Epoxy Coated, Explosion Proof Pressure Switch, 400psi Learn More
  16. Ashcroft NPI
    Ashcroft NPI Pressure Switch,100PSI,4-20mA 1/4"NPTM,250VAC
    Order #: NPI-N4-I-V-S02-XEA-100PSI
    Mfg #: NPI-N4-I-V-S02-XEA-100PSI
    Availability: Call for availability
    Special Price $1,269.38 Regular Price $1,418.31
    Pressure Switch,100PSI,4-20mA 1/4"NPTM,250VAC Learn More
  17. Ashcroft D4
    Ashcroft D4 Pressure Switch,150"H2O 1/4"NPTF,Wall Bracket
    Order #: D420VXBPHXTA150IWD
    Mfg #: D420VXBPHXTA150IWD
    Availability: Call for availability
    Special Price $875.58 Regular Price $978.31
    Pressure Switch,150"H2O 1/4"NPTF,Wall Bracket Learn More
  18. Ashcroft B7
    Ashcroft B7 Air/Water Pressure Switch
    Order #: B724S-06-XCNFSNH-0/7BR
    Mfg #: B724S-06-XCNFSNH-0/7BR
    Availability: Call for availability
    Special Price $866.92 Regular Price $968.63
    Air/Water Pressure Switch Learn More
  19. Ashcroft LPDN4
    Ashcroft LPDN4 Pressure Switch, 60PSI
    Order #: LPDN4-KK-S-06-60PSI
    Mfg #: LPDN4-KK-S-07-60PSI
    Availability: Call for availability
    Special Price $682.05 Regular Price $762.08
    Pressure Switch, 60PSI Learn More
  20. Jackson Safety 1921-00
    Jackson Safety 1921-00 Differential Pressure Switch HP back port,0.07 - 0.15 in H2O
    Order #: 1921-00
    Mfg #: 1921-00
    Availability: Ships in 3-4 weeks
    $145.60
    Differential Pressure Switch HP back port,0.07 - 0.15 in H2O Learn More
  21. Ashcroft B7
    Ashcroft B7 Pressure Switch,60PSI,1/2FM Connection,Dual Switch Element
    Order #: B768SX0760PSI
    Mfg #: B768SX0760PSI
    Availability: Call for availability
    Special Price $1,162.29 Regular Price $1,298.65
    Pressure Switch,60PSI,1/2FM Connection,Dual Switch Element Learn More
  22. Meriam 1226
    Meriam 1226 Differential Pressure Switched Indicator,6"Dial,0-350"H2O
    Order #: Z1226-2-B
    Mfg #: 1226-2-B
    Availability: Ships in 3-4 weeks
    $5,495.00
    Differential Pressure Switched Indicator,6"Dial,0-350"H2O Learn More
  23. Ashcroft PPT2
    Ashcroft PPT Pressure Sensor,0-15PSIA,0.1%
    Order #: PPT2BIAPSI15A
    Mfg #: PPT2BIAPSI15A
    Availability: Call for availability
    Special Price $1,566.62 Regular Price $1,740.69
    Pressure Sensor,0-15PSIA,0.1% Learn More
  24. Ashcroft PPT1
    Ashcroft PPT Pressure Sensor,0-25"H2O,0.1%
    Order #: PPT1BADINWC25A
    Mfg #: PPT1BADINH2O25A
    Availability: Call for availability
    Special Price $1,460.01 Regular Price $1,622.24
    Pressure Sensor,0-25"H2O,0.1% Learn More
  25. Ashcroft B7
    Ashcroft B7 Pressure Switch,60PSI (FS)30PSI Decr.,Blank Tag
    Order #: B724S-06-XFSNH/60PSI
    Mfg #: B724S-06-XFSNH/60PSI
    Availability: Call for availability
    Special Price $749.53 Regular Price $837.47
    Pressure Switch,60PSI (FS)30PSI Decr.,Blank Tag Learn More
Showing 1-25 of 134
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