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 $156.26 Regular Price $278.00
    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 $213.26 Regular Price $238.29
    Ashcroft Pressure Switch, 30psi Buna-N, 1/4npt Female Learn More
  3. Dwyer Instruments DA-41-153-9E
    Dwyer Instruments DA-41-153-9E Bourdon Tube Pressure Switch 316SS tube, range 10-300 psig
    Order #: DA-41-153-9E
    Mfg #: DA-41-153-9E
    Availability: In stock
    $1,449.75
    Bourdon Tube Pressure Switch 316SS tube, range 10-300 psig Learn More
  4. Clearance
    Dwyer Instruments PR-2-P2
    Dwyer Instruments PR-2-P2 Gas/Differential Pressure Sw. man. reset, SPST NC, 0.5-5 psig
    Order #: PR-2-P2
    Mfg #: PR-2-P2
    Availability: In stock
    $910.00
    Gas/Differential Pressure Sw. man. reset, SPST NC, 0.5-5 psig Learn More
  5. Dwyer Instruments 1950-10-2F
    Dwyer Instruments 1950-10-2F EP Differential Pressure Switch 3/11"WC,UL/FM/CSA,SPDT
    Order #: 1950-10-2F
    Mfg #: 1950-10-2F
    Availability: In stock
    $333.85
    EP Differential Pressure Switch 3/11"WC,UL/FM/CSA,SPDT Learn More
  6. Dwyer 608-01 Differential pressure transmitter
    Dwyer Instruments 608-01 Differential pressure trnsmttr, range 0-0.25" w.c.
    Order #: 608-01
    Mfg #: 608-01
    Availability: Ships in 3-4 weeks
    $1,422.10
    Differential pressure trnsmttr, range 0-0.25" w.c. Learn More
  7. 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
    $3,925.00
    Differential Pressure Switched Indicator,6"Dial,0-350"H2O Learn More
  8. Dwyer Instruments A3020
    Dwyer Instruments A3020 Pressure Switch/Gage 0-20Wc
    Order #: A3020
    Mfg #: A3020
    Availability: Ships in 3-4 weeks
    $668.70
    Pressure Switch/Gage 0-20Wc Learn More
  9. Dwyer Instruments 1920-0
    Dwyer Instruments 1920-0 Differential Pressure Switch w/ Conduit,HP back port,.15-.55 i
    Order #: 1920-0
    Mfg #: 1920-0
    Availability: Ships in 3-4 weeks
    $106.10
    Differential Pressure Switch w/ Conduit,HP back port,.15-.55 i Learn More
  10. Ashcroft B424B-200PSI Pressure Switch, Weather Proof, 200PSI
    Ashcroft B424B-200PSI Pressure Switch, Weather Proof, 200PSI
    Order #: B424B-200PSI
    Mfg #: B424B-200PSI
    Availability: Ships in 3-4 weeks
    Special Price $196.24 Regular Price $219.27
    Pressure Switch, Weather Proof, 200PSI Learn More
  11. Ashcroft B424B-100PSI Pressure Switch 100 psi
    Ashcroft B4 Pressure Switch 100 psi
    Order #: B424B-100PSI
    Mfg #: B424B-100PSI
    Availability: Ships in 3-4 weeks
    Special Price $196.24 Regular Price $219.27
    Pressure Switch 100 psi Learn More
  12. Dwyer Instruments EDPS-08-2-N
    Dwyer Instruments EDPS-08-2-N Adj. Differential Pressure Sw. 0.08 to 1.20 in H2O, M20
    Order #: EDPS-08-2-N
    Mfg #: EDPS-08-2-N
    Availability: Ships in 3-4 weeks
    $34.85
    Adj. Differential Pressure Sw. 0.08 to 1.20 in H2O, M20 Learn More
  13. 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: Ships in 3-4 weeks
    Special Price $731.28 Regular Price $777.96
    Pressure Switch,60PSI,1/4"NPT SPDT,120V,External Adjustment Learn More
  14. 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: Ships in 3-4 weeks
    $730.11
    Digital Pressure Switch for Single-line Lubrication Systems Learn More
  15. Meriam 1226
    Meriam 1226 Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS
    Order #: Z1226-2-A
    Mfg #: Z1226-2-A
    Availability: Ships in 3-4 weeks
    $3,499.49
    Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS Learn More
  16. Newport Electronics SW143-8-M
    Omega Engineering SW143 3-Pole,1/4"DIN Selector Switch
    Order #: SW143-8-M
    Mfg #: SW143-8-M
    Availability: Ships in 3-4 weeks
    $194.39
    3-Pole,1/4"DIN Selector Switch Learn More
  17. Dwyer APS-450 Switch, point range 7.5-242 inc, 9.7-250
    Dwyer Instruments APS-450 Sch, pt rg 7.5-242 inc, 9.7-250 dec, +/-5.0 rep, 2.5-9psi ddbd
    Order #: APS-450
    Mfg #: APS-450
    Availability: Ships in 3-4 weeks
    $177.00
    Sch, pt rg 7.5-242 inc, 9.7-250 dec, +/-5.0 rep, 2.5-9psi ddbd Learn More
  18. Dwyer 608-17 Differential pressure transmitter
    Dwyer Instruments 608-17 Differential pressure transmitter, range 0-25.0" w.c.
    Order #: 608-17
    Mfg #: 608-17
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-25.0" w.c. Learn More
  19. Dwyer 608-16 Differential pressure transmitter
    Dwyer Instruments 608-16 Differential pressure transmitter, range 0-10.0" w.c.
    Order #: 608-16
    Mfg #: 608-16
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-10.0" w.c. Learn More
  20. Dwyer 608-15B Differential pressure transmitter
    Dwyer Instruments 608-15B Differential pressure trnsmttr, range 5.0-0-5.0" w.c.
    Order #: 608-15B
    Mfg #: 608-15B
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure trnsmttr, range 5.0-0-5.0" w.c. Learn More
  21. Dwyer 608-15 Differential pressure transmitter
    Dwyer Instruments 608-15 Differential pressure transmitter, range 0-5.0" w.c.
    Order #: 608-15
    Mfg #: 608-15
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-5.0" w.c. Learn More
  22. Dwyer 608-14B Differential pressure transmitter
    Dwyer Instruments 608-14B Differential pressure trnsmittr, rnge 2.0-0-2.0" w.c.
    Order #: 608-14B
    Mfg #: 608-14B
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure trnsmittr, rnge 2.0-0-2.0" w.c. Learn More
  23. Dwyer 608-14 Differential pressure transmitter
    Dwyer Instruments 608-14 Differential pressure transmitter, range 0-2.0" w.c.
    Order #: 608-14
    Mfg #: 608-14
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-2.0" w.c. Learn More
  24. Dwyer 608-13B Differential pressure transmitter
    Dwyer Instruments 608-13B Differential pressure trnsmttr, rng 1.0-0-1.0" w.c.
    Order #: 608-13B
    Mfg #: 608-13B
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure trnsmttr, rng 1.0-0-1.0" w.c. Learn More
  25. Dwyer 608-13 Differential pressure transmitter
    Dwyer Instruments 608-13 Differential pressure transmitter, range 0-1.0" w.c.
    Order #: 608-13
    Mfg #: 608-13
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-1.0" w.c. Learn More
Showing 1-25 of 381
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