Cameron Opposed Piston Differential Pressure Switch
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Opposed Piston Differential Pressure Switch

Brand: Cameron
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Cameron Opposed Piston Differential Pressure Switch Cameron Opposed Piston Differential Pressure Switch
The Opposed Piston differential pressure switch is essentially two static o-ring type pressure sensors connected at opposite ends of a common piston shaft.

Housings are weathertight or explosion proof. Switching elements are SPDT or DPDT.
Features
Complete Product Line
  • Standard models with many options cover pressure range 0.5 to 1,000 psid. Customized specials available.
Robust Construction
  • Rugged, high-cycle rate tolerance, long life, not critical to vibration, high overrange and proof pressures, excellent corrosion resistance to hostile environments.
Instrument Quality
  • High repeatability, narrow dead band, negligible temperature effect.
Wetted Parts
  • Wide selection of materials, process connections configuration and size.
Snap-Action Electrical Switching Element
  • Wide selection UL Listed and CSA Certified switching elements for AC and DC service.
Field Adjustable
  • Excellent resolution of Set Points, selflocking adjustment, no special tools required. No charge for factory calibration.
Agency Listings/Certification
  • Select Models with ATEX, CSA
  • Meets Most Code and Customer Requirements

View Details

Specifications

Brand

Adjustment Type

  • Field Adjustable - Excellent Resolution of Set Points, Selflocking

Ambient Temperature Range

  • -54° to 204° C (-65° to 400° F)

Applications

  • Fluid Power Applications
  • Process Applications

Approvals & Certifications

  • Calibration
  • Compliance/Conformance
  • Dielectric Test
  • Hydrostatic Pressure Test
  • Inspection Report

Approvals & Certifications

  • ATEX Ex ia IIC T6 to T4 Gb
  • CSA Class I, Groups A, B, C, D, Class II, Groups E, F, G DIvision 1 & 2
  • UL

BSP Connection

  • 1/2” BSPT Female
  • 1/4” BSPT Female

Deadband

  • psi: 0.15 to 20 (kPa: 1.034 to 140, bar: 0.01 to 1.4) - Typical

Diaphragm Material

  • 316L Stainless Steel
  • Buna-N
  • Carpenter 20 Stainless Steel / Alloy 20 or Incoloy
  • Ethylene Propylene (EPR)
  • Hastelloy B
  • Hastelloy C
  • Kalrez
  • Monel
  • Neoprene
  • Tantalum
  • Teflon-Coated Polyimide
  • Viton

Electrical Connectors

  • 3/4” NPT Female
  • M20 x 1.5
  • Terminal Block

Electrical Contacts

  • Gold-Plated

Electrical Rating

  • High Ambient Temperature Rating 204.4° C (400° F): 0.3 A at 125 Vdc, Resistive
  • High Ambient Temperature Rating 204.4° C (400° F): 0.5 A at 125 Vdc, Resistive
  • High Ambient Temperature Rating 204.4° C (400° F): 5 A at 250 Vac
  • Low Power Gold Contacts: 1 A at 125 Vac
  • Low Power Gold Contacts: 1 A at 28 Vdc, Resistive
  • Low Power Gold Contacts: 1 A at 30 Vdc, Resistive

Enclosure Finish

  • Epoxy Powder-Coated
  • Fungicidal Varnish

Enclosure, Body Material

  • Aluminum
  • Cast Iron

Environmental Protection

  • Explosion-proof
  • IP65
  • NEMA 4
  • NEMA 4X
  • Weatherproof
  • Weathertight

Gasket Material

  • Neoprene Cover Gasket

Materials of Construction

  • Stainless Steel - Tag, Nameplate

Maximum System Pressure

  • psi: 2,000 (kPa: 14,000, bar: 140)

Mounting

  • Pipe (Stanchion)

NPT Connection

  • 1” NPT Female
  • 1” NPT Male
  • 1/2” NPT Female
  • 1/4” NPT Female
  • 2” NPT Female
  • 3/4” NPT Male

Nut & Bolt Material

  • Adjusting Nut: Stainless Steel

O-Ring Material

  • AFLAS
  • Buna-N
  • Ethylene Propylene (EPR)
  • Kalrez
  • Neoprene
  • Viton
  • Viton GLT

Process Connection Material

  • 316 Stainless Steel Wrought CF8M Casting - Pressure Port Material
  • 347 Stainless Steel Wrought CF-8C Casting - Pressure Port Material
  • Aluminum Series 2,000 Wrought 356 or 360 Casting - Pressure Port Material
  • Brass Half Hard Yellow Wrought Silicon Brass Casting - Pressure Port Material
  • Carbon Steel Ledloy AX Wrought WCB Casting - Pressure Port Material
  • Carpenter 20 Stainless Steel Wrought CF-7M Casting - Pressure Port Material
  • Hastelloy B - Pressure Port Material
  • Hastelloy C - Pressure Port Material
  • Monel - Pressure Port Material

Proof Pressure

  • psi: 0 to 2,500 (kPa: 0 to 17,240, bar: 0 to 172.4)

Set Point - Decreasing

  • bar: 0.034 to 70
  • kPa: 3.447 to 7,000
  • psid: 0.5 to 1,000

Set Point - Increasing

  • bar: 0.034 to 70
  • kPa: 3.447 to 7,000
  • psid: 0.5 to 1,000

Spring Material

  • Elgiloy

Switch Type

  • DPDT
  • Hermetically Sealed
  • SPDT

System Pressure

  • bar: 0 to 140
  • kPa: 0 to 14,000
  • psi: 0 to 2,000

Documentation

Data Sheets

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