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Series CD1H, CD2H

Housed Diaphram Switch

NEMA 4 Housing, Tamper-proof external adjustment dials, pressure up to 150psi.

VCD1H, VCD2H Series

NEMA 4 housing, tamper-proof external adjustment dials, vacuum ranges from .06 - 30 inches Hg. Accuracy of +/-.5% of range. With tamper-proof external adjustment.


Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches provide an ideal solution for pressure control applications requiring tamper proof external adjustment and environments , which require watertight NEMA 4 housings. These pressure switches are available in single or dual control settings for both positive pressure and vacuum models, to 150 psi. These snap-action switches may be wired normally open or normally closed through a 3/4"-14 NPT conduit connector to free leads to 18". All models feature self-locking set screw adjustment and dials, which are calibrated for increasing setting. For applications requiring a highly accurate switch in a durable package, Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches are the ideal choice. Stripped models are also available.

  • Hermetically sealed
  • Explosion proof housing for hazardous location
  • Tamper proof set point adjustment
  • Ideal for pressure or vacuum
  • UL, CSA, ATEX approved
  • NEMA 4, 7,9 & IP66
  • Medical
  • Water equipment
  • Food & beverage
  • Air proving in HVAC systems
  • Engine monitoring
  • Factory automation