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131/141 Differential Pressure Switch
Brand: SOR Inc
131/141 differential pressure switches are robust field-mounted instruments.
The 131/141 pressure sensing assembly is a diaphragm-piston combination. Switching elements are SPDT or DPDT.
Features- Built-In Quality - Rigid quality standards maintained from raw material to finished product.
- Complete Product Line - Standard models with many options cover pressure range 5" wcd to psi: 180 (kPa: 1,241, bar: 12.4)
- Instrument Quality - High repeatability, narrow dead band, negligible temperature effect and long-term stability
- Field Adjustable - Excellent resolution of Set Points, self-locking adjustment, no special tools required
- Construction - Rugged, long life, not critical to vibration, high static pressures, low differential pressures, excellent corrosion resistance to hostile environments
Specifications
Brand
Adjustment Type
- Field Adjustable
Ambient Temperature Range
- -34° to 108° C (-30° to 227° F)
Deadband
- psi: 0.18 to 10.8 (kPa: 1.2 to 74.7, bar: 0.01 to 0.7)
Diaphragm Material
- 316L Stainless Steel
Differential Pressure
- psi: 0 to 300 (kPa: 0 to 2,100, bar: 0 to 21) - Max.
Electrical Connectors
- Conduit Seal Connector with 17 feet Lead Wire Length
Electrical Rating
- 0.3 A at 125 Vdc
- 5 A at 250 Vac Resistive
Enclosure, Body Material
- Carbon Steel
Materials of Construction
- Mounting: Stainless Steel
Maximum System Pressure
- psi: 1,850 (kPa: 12,500, bar: 125)
Mounting
- Mounting Bracket
Name Plate, Tag Material
- Stainless Steel
NPT Connection
- Pressure Port: 1/4” NPT Female
O-Ring Material
- EPR at -34° to 93° C (-30° to 200° F)
Pressure Type
- Differential
Process Connection Material
- 316 Stainless Steel
Repeatability
- ± 1 % of Full Scale as Defined by ANSI/ISA S51.1
Seat / Seal Material
- Seal: Ethylene Propylene (EPR)
Set Point - Decreasing
- bar: 0.01 to 12.41
- Inches WC: 5 to 300
- kPa: 1.2 to 1241.1
- psi: 0.18 to 180
Set Point - Increasing
- bar: 0.01 to 12.41
- Inches WC: 5 to 300
- kPa: 1.2 to 1241.1
- psi: 0.18 to 180
Switch Type
- DPDT
- SPDT
System Pressure
- bar: 1.4 to 12.4
- kPa: 137.9 to 1,241
- psi: 20 to 180
Temperature Effect
- Decreasing Set Point Shift: 5 psi/37.78° C (100° F) Average
- Increasing Set Point Shift: 5 psi/37.78° C (100° F) Average
- Set Point Shift: ± 1.5” WC/37.78° C (100° F)