Differential Pressure

Differential pressure switches

Differential pressure switches for monitoring, alarm, shutdown, and control duties in industrial, process, and hazardous applications.

Products Differential Pressure Differential pressure switches
Watertight differential pressure switch

Watertight differential pressure switch

  • Use: reliable DP control, shutdown, and alarm operation with long-cycle life.
  • Setpoint: single setpoint, factory set or field adjustable from 15% to 100% of range.
  • Accuracy: +/-1% of span setpoint repeatability.
  • Range: 30 in. H2O differential through 600 psid.
  • Protection: NEMA 4X / IP66 epoxy coated aluminum enclosure.
  • Materials: Buna-N, Teflon, Viton, 316L stainless steel, or Monel diaphragms available.
  • Approvals: SIL 3 capable, FM, UL, CE, CRN, and RoHS compliant.
  • Applications: offshore oil rigs, chemical plants, power plants, water treatment, pumps, compressors, boilers, filters, HVAC, marine, and OEM equipment.
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Explosion proof differential pressure switch

Explosion proof differential pressure switch

  • Use: DP control, shutdown, and alarm operation in hazardous locations.
  • Setpoint: single setpoint, factory set or field adjustable from 15% to 100% of range.
  • Accuracy: +/-1% of span setpoint repeatability.
  • Range: 30 in. H2O differential through 600 psid.
  • Protection: NEMA 7/9 and IP66 explosion proof enclosure.
  • Materials: epoxy coated aluminum or 316 stainless steel enclosure with Buna-N, Teflon, Viton, 316L stainless steel, or Monel diaphragm options.
  • Approvals: UL, CSA, ATEX, IECEx hazardous approvals, FM, CE, CRN, SIL 3 capable, and RoHS compliant.
  • Applications: offshore oil rigs, chemical plants, power plants, water treatment, pumps, compressors, filters, HVAC, marine, and OEM equipment.
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Compact watertight differential pressure switch

Compact watertight differential pressure switch

  • Use: DP control, safety shutdown, or alarm operation where independent setpoints or adjustable deadbands are required.
  • Setpoint: independent setpoint, single setpoint adjustable deadband, or single setpoint fixed deadband configurations.
  • Accuracy: +/-1% of span setpoint repeatability.
  • Range: 30 in. H2O differential through 400 psid.
  • Protection: NEMA 4X / IP66 epoxy coated aluminum enclosure.
  • Materials: Buna-N, Teflon, Viton, 316L stainless steel, or Monel diaphragm options.
  • Approvals: FM, UL, CSA, CE, and RoHS compliant.
  • Applications: refineries, chemical plants, power plants, water treatment, pumps, compressors, boilers, reverse osmosis, filters, OEM equipment, and pharmaceutical plants.
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Stainless steel differential pressure switch

Stainless steel differential pressure switch

  • Use: DP control, shutdown, or alarm operation for tough industrial applications.
  • Setpoint: independent setpoint, single setpoint adjustable deadband, or single setpoint fixed deadband configurations.
  • Accuracy: +/-1% of span setpoint repeatability.
  • Range: 0-6 in. H2O to 0-150 in. H2O.
  • Protection: NEMA 4X / IP66 enclosure for demanding environments.
  • Materials: Buna-N, Viton, or Teflon diaphragm options.
  • Design: easy field installation with direct access to microswitch wiring.
  • Applications: refineries, chemical plants, power plants, water treatment, pumps, compressors, boilers, reverse osmosis, filters, OEM equipment, and pharmaceutical plants.
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Heavy-duty explosion proof differential pressure switch

Heavy-duty explosion proof differential pressure switch

  • Use: DP control, shutdown, or alarm operation in hazardous locations requiring uncompromising protection.
  • Setpoint: dual independent setpoints, single setpoint adjustable deadband, or single setpoint fixed deadband configurations.
  • Accuracy: +/-1% of span setpoint repeatability.
  • Range: 30 in. H2O differential through 400 psid.
  • Protection: NEMA 7/9 and IP66 explosion proof epoxy coated aluminum enclosure.
  • Design: dual chamber construction allows safe field calibration even with power connected.
  • Materials: Buna-N, Teflon, Viton, 316L stainless steel, or Monel diaphragm options.
  • Approvals: UL and CSA hazardous approvals, CRN approved, RoHS compliant, and NSF-61 compliant.
  • Applications: refineries, chemical plants, water treatment, steel mills, pumps, compressors, boilers, and reverse osmosis systems.
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