Switche

Switche
Switches are sensors with an electrical contact output at a specific pressure. Used on air, non-corrosive gas or liquid service compatible with wetted parts. Applications vary from Single Pressure Switch to switch.
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  1. MVS-6
    Miniature vacuum switch, min. set point 81" w.c. (200 mbar), max. set ...
    $32.25
  2. AP-7021-153-33
    Diaphragm operated pressure switch, range 10" vac-50" w.c. (2.5-12.4 k ...
    $585.50
  3. AP-7021-153-37
    Diaphragm operated pressure switch, range 1-30 psig (.07-2.1 bar), SPD ...
    $585.50
  4. AP-7021-153-39
    Diaphragm operated pressure switch, range 10-125 psig (.69-8.6 bar), S ...
    $585.50
  5. Series DA/DS Bourdon Tube Pressure Switches
    Bourdon Tube Pressure Switches have extremely high sensitivity and g ...
  6. Series A9 Snap-Action Pressure Switch
    Snap-Action Pressure Switch is designed for controlling pressure wit ...
    Starting at $34.55
  7. Series SA1100 Diaphragm Operated Pressure Switches
    Diaphragm Operated Pressure Switches are weatherproof and economical ...
    Starting at $554.30
  8. Series 1000W Weatherproof Diaphragm Operated Pressure Switches
    Weatherproof Diaphragm Operated Pressure Switches have weatherproof ...
    Starting at $697.85
  9. Series H2 Dual-Action Explosion-proof Pressure Switches
    Dual-Action Explosion-Proof Pressure Switches have a design that is ...
    Starting at $2,064.40
  10. Series AP Diaphragm Operated Pressure Switch
    Diaphragm Operated Pressure Switches are compact for instrument air ...
    Starting at $585.50
  11. Series CS & CD Diaphragm Pressure Switch
    Diaphragm Pressure Switch combines advanced design and precision con ...
    Starting at $402.50
  12. Series APS/AVS Adjustable Pressure Switch
    Adjustable Pressure Switch is a reliable switch for pressure/vacuum ...
    Starting at $170.75
  13. Series A1PS/A1VS Economical Pressure Switch
    Economical Pressure Switch is designed for direct control of pumps a ...
    Starting at $71.40
  14. Series MVS Miniature Vacuum Switch
    Miniature Vacuum Switch is a compact, lightweight, and adjustable wh ...
    Starting at $30.95
  15. Series A2 Subminiature Pressure Switch
    Subminiature Pressure Switch is designed for OEM applications and is ...
    Starting at $44.35
  16. Series MHS Miniature High Sensitivity Pressure Switch
    Miniature High Sensitivity Pressure Switch can be used with air or com ...
    Starting at $27.15
  17. Series CX Compressor Pressure Switch
    Compressor Pressure Switch is used for direct control of pumps and m ...
    Starting at $4.97
  18. Series CXA Water Pump Pressure Switch
    Water Pump Pressure Switch is popular for use on water well pumps an ...
    Starting at $15.75
  19. Series A6 Durable Pressure Switch
    Durable Pressure Switch is designed to stand up to extended duty app ...
    Starting at $29.15
  20. Series 1000E Explosion-Proof Diaphragm Operated Pressure Switches
    Explosion-Proof Diaphragm Operated Pressure Switches has a Bellville ...
    Starting at $1,112.80
  21. Series A1F OEM Pressure Switch
    OEM Pressure Switch is ideal for OEM applications and the open case ...
    Starting at $180.95
  22. Series EDA Electronic Pressure Controller
    Electronic Pressure Controller is versatile and compact. Weatherproo ...
    Starting at $508.55
  23. Series MDPC Mini Digital Pressure Controller
    Mini Digital Pressure Controller is a slim sensor that is light. Sup ...
    Starting at $125.25
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Questions

Question
For which pressure switch applications are gold contacts recommended?
Answer
For "dry circuit" applications where little or no current is flowing in the circuit to help burn off contact dirt and oxidation. Switches used with solid state circuits often fall in this category.
Question
Can the standard H2 pressure switch be used with water?
Answer
No. The brass or SS housing must be specified for compatibility reasons. The aluminum housing can leak into the switch.
Question
A customer would like to get switching capability, local pressure indication, and a 4-20 mA output signal all in one device. Do we have a product to offer them?
Answer
Yes. The DH, DHII or DH3 possess high/low set points, digital gage display and 4-20 mA full scale output signal for air and compatible gas. The EDA, DPG-200, DPT and the MDPC possess high/low set points, digital gage display and 4-20 mA full scale output signal for compatible fluids.
Question
Will the MVS series vacuum switch work if they are in the box with the vacuum. I need to signal when the vacuum in the box, in which the switch is placed reaches a level. The electrical connections are through a hermetic connector on the box.
Answer
No, the MVS needs to be mounted externally to the vacuum in a reference area or an area open to the atmosphere and connected to the vacuum source via appropriate process tubing depending on the model.
Question
I am trying to buy a replacement part for a mercoid pressure switch. The part number given on the device is DA-31-153 RG 9. What does the "RG" stand for? Is buying the DA-31-153-9 an equivalent part? Thank you in advance.
Answer
RG stands for Range. In this case, RG 9 means Range 9. You full model number is DA-31-153-9.