SOR Opposed Piston Differential Pressure Switch
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Opposed Piston Differential Pressure Switch

Brand: SOR Inc
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SOR Opposed Piston Differential Pressure Switch SOR 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.

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Specifications

Brand

Adjustment Type

  • Field Adjustable

Ambient Temperature Range

  • -54° to 204° C (-65° to 400° F)

Approvals & Certifications

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

Approvals & Certifications

  • Calibration
  • Compliance/Conformance
  • Dielectric Test
  • Hydrostatic Pressure Test
  • Inspection Report
  • Insulation Resistance
  • SIL 1 & 2 Certification
  • Typical Material of Wetted Parts

BSP Connection

  • Pressure Port: 1/2” BSP Female
  • Pressure Port: 1/4” BSP Female

Deadband

  • Typical psi: 0.15 to 20 (kPa: 1 to 140, bar: 0.01 to 1.4)

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 (TCP)
  • Viton

Differential Pressure

  • Maximum

Electrical - Free Leads

  • 18”, 18 AWG Wire Leads

Electrical Connectors

  • 1/2” NPT Female
  • 3/4” NPT Female
  • 6-place Compression Typical Terminal Block
  • M20 x 1.5

Electrical Contacts

  • Low Power Gold Contacts

Electrical Rating

  • 0.3 A at 125 Vdc, Resistive - High Ambient Temperature Rating 204.4° C (400° F)
  • 0.4 A at 125 Vdc, Resistive - Normal Service AC
  • 0.5 A at 125 Vdc, Resistive - Wide Dead Band AC, AC or DC, Narrow Dead Band DC, High Ambient Temperature Rating 204.4° C (400° F)
  • 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 - Low Power Gold Contacts, Wide Dead Band DC
  • 10 A at 30 Vdc, Resistive - Wide Dead Band DC
  • 11 A at 250 Vac - AC or DC
  • 15 A at 250 Vac - Normal Service AC, Wide Dead Band AC or DC
  • 5 A at 250 Vac - Narrow Dead Band DC, High Ambient Temperature Rating 204.4° C (400° F)
  • 5 A at 30 Vdc, Resistive - Normal Service AC, AC or DC, Narrow Dead Band DC

Enclosure Finish

  • Epoxy Coated (Exterior Only)
  • Epoxy Powder-Coated
  • Fungicidal Varnish

Enclosure, Body Material

  • Aluminum
  • Cast Iron
  • Stainless Steel

Environmental Protection

  • Explosion-proof
  • IP65
  • IP66
  • NEMA 4
  • NEMA 4X
  • Weatherproof

Gasket Material

  • Cover Gasket: Neoprene

Maximum System Pressure

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

Mounting

  • Pipe Mounting (Stanchion) Kit for 1-1/2 to 2” Pipe

Name Plate, Tag Material

  • Stainless Steel
  • Fiber

NPT Connection

  • Pressure Port: 1” NPT Female
  • Pressure Port: 1” NPT Male
  • Pressure Port: 1/2” NPT Female
  • Pressure Port: 1/2” NPT Male
  • Pressure Port: 1/4” NPT Female
  • Pressure Port: 1/4” NPT Male
  • Pressure Port: 2” NPT Female
  • Pressure Port: 3/4” NPT Male

Nut & Bolt Material

  • Adjusting Nut: Stainless Steel for Carbon Steel Body

O-Ring Material

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

Pressure Range

  • psi: 0.5 to 1,000 (kPa: 3.5 to 7,000, bar: 0.035 to 70)

Pressure Type

  • Differential

Process Connection Material

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

Proof Pressure

  • psi: 0 to 2,500 (kPa: 0 to 17,000, bar: 0 to 170)

Set Point - Decreasing

  • bar: 0.035 to 70
  • kPa: 3.5 to 7,000
  • psi: 0.5 to 1,000

Set Point - Increasing

  • bar: 0.035 to 70
  • kPa: 3.5 to 7,000
  • psi: 0.5 to 1,000

Spring Material

  • Elgiloy

Switch Type

  • DPDT
  • SPDT

System Pressure

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

  • Fluid Power Applications
  • Process Applications

Documentation

Data Sheets

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