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Opposed Piston Differential Pressure Switch
Brand: SOR Inc
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.
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