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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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Showing 51-75 of 240
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  1. Dwyer Instruments DA-7031-153-6
    Dwyer Instruments DA-7031-153-6 Bourdon Tube Pressure Switch Brass tube, range 5-100 psig
    Order #: DA-7031-153-6
    Mfg #: DA-7031-153-6
    Availability: Ships in 3-4 weeks
    $1,054.40
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    Bourdon Tube Pressure Switch Brass tube, range 5-100 psig Learn More
  2. Dwyer Instruments DA-7031-153-5
    Dwyer Instruments DA-7031-153-5 Bourdon Tube Pressure Switch Brass tube, range 2-60 psig
    Order #: DA-7031-153-5
    Mfg #: DA-7031-153-5
    Availability: Ships in 3-4 weeks
    $1,054.40
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    Bourdon Tube Pressure Switch Brass tube, range 2-60 psig Learn More
  3. Dwyer Instruments DA-7031-153-2
    Dwyer Instruments DA-7031-153-2 Bourdon Tube Pressure Switch Brass tube, range 0-30" Hg Vac
    Order #: DA-7031-153-2
    Mfg #: DA-7031-153-2
    Availability: Ships in 3-4 weeks
    $1,054.40
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    Bourdon Tube Pressure Switch Brass tube, range 0-30" Hg Vac Learn More
  4. Dwyer Instruments DA-7021-153-9S
    Dwyer Instruments DA-7021-153-9S Bourdon Tube Pressure Switch 403SS tube, range 10-300 psig
    Order #: DA-7021-153-9S
    Mfg #: DA-7021-153-9S
    Availability: Ships in 3-4 weeks
    $1,611.35
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    Bourdon Tube Pressure Switch 403SS tube, range 10-300 psig Learn More
  5. Dwyer Instruments DA-7021-153-9AS
    Dwyer Instruments DA-7021-153-9AS Bourdon Tube Pressure Switch 403SS tube, range 40-350 psig
    Order #: DA-7021-153-9AS
    Mfg #: DA-7021-153-9AS
    Availability: Ships in 3-4 weeks
    $1,611.35
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    Bourdon Tube Pressure Switch 403SS tube, range 40-350 psig Learn More
  6. Dwyer Instruments DA-41-153-21E
    Dwyer Instruments DA-41-153-21E Bourdon Tube Pressure Switch 316SS tube, range 30-400 psig
    Order #: DA-41-153-21E
    Mfg #: DA-41-153-21E
    Availability: Please contact Transcat Customer Service for availability.
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    Bourdon Tube Pressure Switch 316SS tube, range 30-400 psig Learn More
  7. Dwyer Instruments DA-31-153-8
    Dwyer Instruments DA-31-153-8 Bourdon Tube Pressure Switch Brass tube, range 10-200 psig
    Order #: DA-31-153-8
    Mfg #: DA-31-153-8
    Availability: Please contact Transcat Customer Service for availability.
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    Bourdon Tube Pressure Switch Brass tube, range 10-200 psig Learn More
  8. Dwyer Instruments DA-31-153-6
    Dwyer Instruments DA-31-153-6 Bourdon Tube Pressure Switch Brass tube, range 5-100 psig
    Order #: DA-31-153-6
    Mfg #: DA-31-153-6
    Availability: Ships in 3-4 weeks
    $1,143.05
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    Bourdon Tube Pressure Switch Brass tube, range 5-100 psig Learn More
  9. Dwyer Instruments MVS-6
    Dwyer Instruments MVS-6 Miniature Vacuum Switch min. pt 81" H2O,max. pt 330"H2O
    Order #: MVS-6
    Mfg #: MVS-6
    Availability: Ships in 3-4 weeks
    $37.75
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    Miniature Vacuum Switch min. pt 81" H2O,max. pt 330"H2O Learn More
  10. Dwyer Instruments MVS-4
    Dwyer Instruments MVS-4 Miniature Vacuum Switch min. pt 3" H2O, max. pt 8" H2O
    Order #: MVS-4
    Mfg #: MVS-4
    Availability: Ships in 3-4 weeks
    $38.35
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    Miniature Vacuum Switch min. pt 3" H2O, max. pt 8" H2O Learn More
  11. Dwyer Instruments MVS-3
    Dwyer Instruments MVS-3 Miniature Vacuum Switch min. pt 81" H2O,max. pt 330"H2O
    Order #: MVS-3
    Mfg #: MVS-3
    Availability: Ships in 3-4 weeks
    $36.95
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    Miniature Vacuum Switch min. pt 81" H2O,max. pt 330"H2O Learn More
  12. Dwyer Instruments MVS-2
    Dwyer Instruments MVS-2 Miniature Vacuum Switch min. pt 9" H2O, max. pt 80" H2O
    Order #: MVS-2
    Mfg #: MVS-2
    Availability: Ships in 3-4 weeks
    $36.95
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    Miniature Vacuum Switch min. pt 9" H2O, max. pt 80" H2O Learn More
  13. Dwyer Instruments MP-010
    Dwyer Instruments MP-010 Mini-Photohelic Differential Pressure Sw/Gauge, 0-10 in H2O
    Order #: MP-010
    Mfg #: MP-010
    Availability: Ships in 3-4 weeks
    $584.95
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    Mini-Photohelic Differential Pressure Sw/Gauge, 0-10 in H2O Learn More
  14. Dwyer Instruments MP-002
    Dwyer Instruments MP-002 Mini-Photohelic Differential Pressure Sw/Gauge, 0-2 in H2O
    Order #: MP-002
    Mfg #: MP-002
    Availability: Ships in 3-4 weeks
    $584.95
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    Mini-Photohelic Differential Pressure Sw/Gauge, 0-2 in H2O Learn More
  15. Dwyer Instruments MP-001
    Dwyer Instruments MP-001 Mini-Photohelic Differential Pressure Sw/Gauge, 0-1 in H2O
    Order #: MP-001
    Mfg #: MP-001
    Availability: Ships in 3-4 weeks
    $584.95
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    Mini-Photohelic Differential Pressure Sw/Gauge, 0-1 in H2O Learn More
  16. Dwyer MHS-5
    Dwyer Instruments MHS-5 Hi Sensitivity Pressure Switch min. pt 416", max. pt 1664" H2O
    Order #: MHS-5
    Mfg #: MHS-5
    Availability: Ships in 3-4 weeks
    $31.90
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    Hi Sensitivity Pressure Switch min. pt 416", max. pt 1664" H2O Learn More
  17. Dwyer Instruments H3S-3SL
    Dwyer Instruments H3S-3SL XP Differential Pressure Switch 5 - 70 psid, SPDT Snap Switch
    Order #: H3S-3SL
    Mfg #: H3S-3SL
    Availability: Ships in 3-4 weeks
    $2,249.45
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    XP Differential Pressure Switch 5 - 70 psid, SPDT Snap Switch Learn More
  18. Dwyer Instruments H3A-1SL
    Dwyer Instruments H3A-1SL XP Differential Pressure Switch 10 - 180 in H2O, SPDT Snap Sw
    Order #: H3A-1SL
    Mfg #: H3A-1SL
    Availability: Ships in 3-4 weeks
    $1,685.20
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    XP Differential Pressure Switch 10 - 180 in H2O, SPDT Snap Sw Learn More
  19. Dwyer Instruments H2S-2
    Dwyer Instruments H2S-2 Duotect Dual-action XP Pressure Sw, 25-250psig lo,30-400psig h
    Order #: H2S-2
    Mfg #: H2S-2
    Availability: Ships in 3-4 weeks
    $2,408.35
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    Duotect Dual-action XP Pressure Sw, 25-250psig lo,30-400psig h Learn More
  20. Dwyer Instruments H2S-1
    Dwyer Instruments H2S-1 Duotect Dual-action XP Pressure Switch, 3-40psig lo,5-75psig h
    Order #: H2S-1
    Mfg #: H2S-1
    Availability: Ships in 3-4 weeks
    $2,408.35
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    Duotect Dual-action XP Pressure Switch, 3-40psig lo,5-75psig h Learn More
  21. Dwyer Instruments 201-WT-7810-C1-60
    Dwyer Instruments 201-WT-7810-C1-60 Chamber Type Level Control side mounted, SPDT snap switch
    Order #: 201-WT-7810-C1-60
    Mfg #: 201-WT-7810-C1-60
    Availability: Please contact Transcat Customer Service for availability.
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    Chamber Type Level Control side mounted, SPDT snap switch Learn More
  22. Dwyer Instruments A9-2
    Dwyer Instruments A9-2 Snap-Action Pressure Switch Range 7.3-17.4 psig 0.5-1.5 bar
    Order #: A9-2
    Mfg #: A9-2
    Availability: Ships in 3-4 weeks
    $40.55
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    Snap-Action Pressure Switch Range 7.3-17.4 psig 0.5-1.5 bar Learn More
  23. Dwyer Instruments A3330
    Dwyer Instruments A3330 PHOTOHELIC Pressure Switch/Gage Range 15-0-15" w.c.
    Order #: A3330
    Mfg #: A3330
    Availability: Ships in 3-4 weeks
    $802.05
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    PHOTOHELIC Pressure Switch/Gage Range 15-0-15" w.c. Learn More
  24. Dwyer Instruments A3320
    Dwyer Instruments A3320 PHOTOHELIC Pressure Switch/Gage Range 10-0-10" w.c.
    Order #: A3320
    Mfg #: A3320
    Availability: Ships in 3-4 weeks
    $802.05
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    PHOTOHELIC Pressure Switch/Gage Range 10-0-10" w.c. Learn More
  25. Dwyer Instruments A3310
    Dwyer Instruments A3310 PHOTOHELIC Pressure Switch/Gage Range 5-0-5" w.c.
    Order #: A3310
    Mfg #: A3310
    Availability: Ships in 3-4 weeks
    $802.05
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    PHOTOHELIC Pressure Switch/Gage Range 5-0-5" w.c. Learn More
Showing 51-75 of 240
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