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. Ashcroft B7
    Ashcroft B768SXNH/200PSI Pressure Switch, 200 psi Blank Tag, Welded STS, 1/4npt-F
    Order #: B768SXNH/200PSI
    Mfg #: B768SXNH/200PSI
    Availability: Item ships in about Call for Availability
    Special Price $647.37 Regular Price $723.32
    Pressure Switch, 200 psi Blank Tag, Welded STS, 1/4npt-F Learn More
  2. Ashcroft B4
    Ashcroft B420B/30PSI Ashcroft Pressure Switch, 30psi Buna-N, 1/4npt Female
    Order #: B420B/30PSI
    Mfg #: B420B/30PSI
    Availability: Item ships in about Call for Availability
    Special Price $176.32 Regular Price $197.01
    Ashcroft Pressure Switch, 30psi Buna-N, 1/4npt Female Learn More
  3. 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: Item ships in about Call for Availability
    Special Price $430.07 Regular Price $480.53
    Pressure Switch,400PSIG,Welded Stainless,FM Approval Learn More
  4. Ashcroft T2
    Ashcroft T2 Pressure Transducer,750PSI 1/4"NPTM,0-5VDC
    Order #: T27M0205F3750G
    Mfg #: T27M0205F3750G
    Availability: Item ships in about Call for Availability
    Special Price $255.28 Regular Price $285.24
    Pressure Transducer,750PSI 1/4"NPTM,0-5VDC Learn More
  5. Ashcroft B4
    Ashcroft B4 Pressure Switch,200PSI Factory Set Point,AC,Viton
    Order #: B420V-XFS-200PSI
    Mfg #: B420V-XFS-200PSI
    Availability: Item ships in about Call for Availability
    Special Price $208.67 Regular Price $233.16
    Pressure Switch,200PSI Factory Set Point,AC,Viton Learn More
  6. Meriam 1224
    Meriam Z1224-1-B Differential Press.Switched Indicator,0-15PSID,1 Switch
    Order #: Z1224-1-B
    Mfg #: Z1224-1-B
    Availability: In stock
    Special Price $1,944.32 Regular Price $1,984.00
    Differential Press.Switched Indicator,0-15PSID,1 Switch Learn More
  7. Ashcroft B7
    Ashcroft B7 Pressure Switch,14 Bar,ATEX Belleville,SS Tag,Metric
    Order #: B732BXCNG3K3NHMD/14BAR
    Mfg #: B732BXCNG3K3NHMD/14BAR
    Availability: Item ships in about Call for Availability
    Special Price $610.40 Regular Price $682.02
    Pressure Switch,14 Bar,ATEX Belleville,SS Tag,Metric Learn More
  8. Ashcroft B7
    Ashcroft B7 Pressure Switch,200PSI Narrow Deadband
    Order #: B720B200PSI
    Mfg #: B720B200PSI
    Availability: Item ships in about Call for Availability
    Special Price $371.42 Regular Price $415.00
    Pressure Switch,200PSI Narrow Deadband Learn More
  9. 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: Item ships in about Call for Availability
    Special Price $633.48 Regular Price $707.81
    Electronic Pressure Switch 300PSI,/4"NPTM,250VAC,SPDT Learn More
  10. Ashcroft PPAN
    Ashcroft PPAN7HV25/400PSI Epoxy Coated, Explosion Proof Pressure Switch, 400psi
    Order #: PPAN7HV25/400PSI
    Mfg #: PPAN7HV25/400PSI
    Availability: Item ships in about Call for Availability
    Special Price $495.38 Regular Price $553.50
    Epoxy Coated, Explosion Proof Pressure Switch, 400psi Learn More
  11. 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: Item ships in about Call for Availability
    Special Price $749.53 Regular Price $837.47
    Pressure Switch,100PSI,4-20mA 1/4"NPTM,250VAC Learn More
  12. Dwyer Instruments MFD-1
    Dwyer Instruments MFD-1

    Micro Fluidizer Disk

    Order #: MFD-1
    Mfg #: MFD-1
    Availability: Item discontinued
    $36.75

    Micro Fluidizer Disk

    Learn More
  13. Dwyer Instruments SA1113E-S5-K2
    Dwyer Instruments SA1113E-S5-K2 Diaphragm Operated Pressure Sw. 32 - 500 psig, 1/2" NPT(F), Al
    Order #: SA1113E-S5-K2
    Mfg #: SA1113E-S5-K2
    Availability: Item ships in about 2 - 3 Weeks
    $370.30
    Diaphragm Operated Pressure Sw. 32 - 500 psig, 1/2" NPT(F), Al Learn More
  14. Dwyer Instruments SA1113E-S5-K1
    Dwyer Instruments SA1113E-S5-K1 Diaphragm Operated Pressure Sw. 31 - 500 psig, 1/4" NPT(F), Al
    Order #: SA1113E-S5-K1
    Mfg #: SA1113E-S5-K1
    Availability: Item ships in about 2 - 3 Weeks
    $362.10
    Diaphragm Operated Pressure Sw. 31 - 500 psig, 1/4" NPT(F), Al Learn More
  15. Dwyer Instruments SA1113E-A4-K1
    Dwyer Instruments SA1113E-A4-K1 Diaphragm Operated Pressure Sw. 30 - 500 psig, 1/4" NPT(F), Al
    Order #: SA1113E-A4-K1
    Mfg #: SA1113E-A4-K1
    Availability: Item ships in about 2 - 3 Weeks
    $335.00
    Diaphragm Operated Pressure Sw. 30 - 500 psig, 1/4" NPT(F), Al Learn More
  16. Dwyer Instruments SA1112E-S5-K2
    Dwyer Instruments SA1112E-S5-K2 Diaphragm Operated Pressure Sw. 22 - 250 psig, 1/2" NPT(F), Al
    Order #: SA1112E-S5-K2
    Mfg #: SA1112E-S5-K2
    Availability: Item ships in about 2 - 3 Weeks
    $370.30
    Diaphragm Operated Pressure Sw. 22 - 250 psig, 1/2" NPT(F), Al Learn More
  17. Dwyer Instruments SA1112E-S5-K1
    Dwyer Instruments SA1112E-S5-K1 Diaphragm Operated Pressure Sw. 21 - 250 psig, 1/4" NPT(F), Al
    Order #: SA1112E-S5-K1
    Mfg #: SA1112E-S5-K1
    Availability: Item ships in about 2 - 3 Weeks
    $362.10
    Diaphragm Operated Pressure Sw. 21 - 250 psig, 1/4" NPT(F), Al Learn More
  18. Dwyer Instruments SA1112E-A4-K1
    Dwyer Instruments SA1112E-A4-K1 Diaphragm Operated Pressure Sw. 20 - 250 psig, 1/4" NPT(F), Al
    Order #: SA1112E-A4-K1
    Mfg #: SA1112E-A4-K1
    Availability: Item ships in about 2 - 3 Weeks
    $335.00
    Diaphragm Operated Pressure Sw. 20 - 250 psig, 1/4" NPT(F), Al Learn More
  19. Dwyer Instruments SA1111E-S5-K2
    Dwyer Instruments SA1111E-S5-K2 Diaphragm Operated Pressure Sw. 10 - 150 psig, 1/2" NPT(F), Al
    Order #: SA1111E-S5-K2
    Mfg #: SA1111E-S5-K2
    Availability: Item ships in about 2 - 3 Weeks
    $370.30
    Diaphragm Operated Pressure Sw. 10 - 150 psig, 1/2" NPT(F), Al Learn More
  20. Dwyer Instruments SA1111E-S5-K1
    Dwyer Instruments SA1111E-S5-K1 Diaphragm Operated Pressure Sw. 10 - 150 psig, 1/4" NPT(F), Al
    Order #: SA1111E-S5-K1
    Mfg #: SA1111E-S5-K1
    Availability: Item ships in about 2 - 3 Weeks
    $362.10
    Diaphragm Operated Pressure Sw. 10 - 150 psig, 1/4" NPT(F), Al Learn More
  21. Dwyer Instruments SA1111E-A4-K1
    Dwyer Instruments SA1111E-A4-K1 Diaphragm Operated Pressure Sw. 10 - 150 psig, 1/4" NPT(F), Al
    Order #: SA1111E-A4-K1
    Mfg #: SA1111E-A4-K1
    Availability: Item ships in about 2 - 3 Weeks
    $335.00
    Diaphragm Operated Pressure Sw. 10 - 150 psig, 1/4" NPT(F), Al Learn More
  22. Dwyer Instruments DS-7231-153-9
    Dwyer Instruments DS-7231-153-9 Bourdon Tube Pressure Switch fixed deadband, 10 - 300 psig
    Order #: DS-7231-153-9
    Mfg #: DS-7231-153-9
    Availability: Item ships in about Ships in 2-3 weeks
    $411.00
    Bourdon Tube Pressure Switch fixed deadband, 10 - 300 psig Learn More
  23. Dwyer DS-7231-153-7
    Dwyer Instruments DS-7231-153-7 Bourdon Tube Pressure Switch fixed deadband, 5 - 150 psig
    Order #: DS-7231-153-7
    Mfg #: DS-7231-153-7
    Availability: Item ships in about Ships in 2-3 weeks
    $372.00
    Bourdon Tube Pressure Switch fixed deadband, 5 - 150 psig Learn More
  24. Dwyer DS-7231-153-6
    Dwyer Instruments DS-7231-153-6 Bourdon Tube Pressure Switch fixed deadband, 5 - 100 psig
    Order #: DS-7231-153-6
    Mfg #: DS-7231-153-6
    Availability: Item ships in about Ships in 2-3 weeks
    $372.00
    Bourdon Tube Pressure Switch fixed deadband, 5 - 100 psig Learn More
  25. Dwyer Instruments DS-7231-153-5
    Dwyer Instruments DS-7231-153-5 Bourdon Tube Pressure Switch fixed deadband, 2 - 60 psig
    Order #: DS-7231-153-5
    Mfg #: DS-7231-153-5
    Availability: Item ships in about 1-2 Weeks
    $372.00
    Bourdon Tube Pressure Switch fixed deadband, 2 - 60 psig Learn More
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