Weatherproof switches are sealed for external use. They are built to stand up to the rigors of the environment and provide long lasting and dependable service. SOR weatherproof differential pressure switches also feature adjustable set points. If your application requires you to monitor differential pressure in a weatherproof environment, look no further.

 

Long lasting and dependable

  • Precise quality standards from raw materials to finished switch
  • Low cost
  • Set point adjustment with calibrated scale

Wide range of standard models

  • SOR has a weatherproof differential pressure switch to fit a wide variety of applications where protection from the elements is vital to your process
  • Extensive range of wetted parts available
  • Several instrument enclosures available including aluminum and stainless steel

Engineered to your specifications

  • Every SOR weatherproof differential pressure switch can be custom made to your exact specifications – talk to a factory Sales Engineer or your local Representative

Safety certified to IEC 61508 (SIL)

  • Most models meet requirements for non-redundant use in SIL1 and SIL2  Safety Instrumented Systems

Versatile features

  • Draft ranges to high differential set points
  •  High static working pressures
  • Capable of full differential pressure reversal

Simple to use

  • Installs easily without the need for special tools
  • Factory calibration at no charge

Adjustable Dead Band Explosion Proof Pressure Switch

DPS_102W1-Weatherproof_1-300x300

Models: 102W1, 103W1
Ranges: 7 in wc to 2500 psid, 18 mbar to 175 bar
Certifications: Unit: ATEX, CSA, GOST, INMETRO, RTN, SIL
Warranty: 3 Years

SOR weatherproof, high static differential pressure switches come in two models – the 102 features a piston/dynamic o-ring and the 103 is a piston/diaphragm model. Both are well-suited for low-to-high differential pressure process or fluid power applications where high and varying static pressures, high over-range, proof, shock pressure or cycle rates are expected. They may be field-mounted and are configured for use in non-hazardous locations.

  • Negligible temperature and/or static influence
  • Ranges from 7 in wc to 2500 psid
  • Models can be configured for Intrinsically Safe protection

Datasheet

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Low Range – Weatherproof Differential Pressure Switch

DPS_107AL_Weatherproof_2-300x300

Models: 107AL
Ranges: 0 to 40 in wc, 0 to 1000 mm wc
Certifications: Unit: CSA, FM, RTN, SIL
Warranty: 3 Years

Designed primarily for air and clean gas applications for low pressures, the weatherproof 107 low range differential pressure switch accurately reads very low pressures in locations requiring protection from the elements. Its diaphragm has a large sensing area and is the perfect choice for pressurized (clean) room applications because it measures the difference between one room and another (air ducts) and lets you know if an air filter is clogged. An external set point adjustment with visual indication is standard, allowing for simplified calibration of the switch.

  • Ranges from 0 to 40 in wc
  • External Set point adjustment with visual indication for simplified calibration

Datasheet

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Opposed Piston – Weatherproof Differential Pressure Switch

DPS_RB-15-Weatherproof_1-300x300

Models: RB
Ranges: 0.5 to 1000 psid
Certifications: Unit: CSA, INMETRO, RTN, SIL
Warranty: 3 Years

The SOR weatherproof opposed piston type differential pressure switch is basically two static o-ring type pressure sensors at opposite ends of a common piston shaft.  The housing is weatherproof or can be upgraded to an explosion proof rating. Basic models with standard wetted parts are normally suitable for air, oil, water and non-corrosive process fluids. Operating performance is optimized when system pressure is relatively constant.

  • Ranges from 0.5 to 1000 psid
  • Set point adjustment with calibrated scale

Datasheet

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Single Diaphragm – Weatherproof Differential Pressure Switch

DPS_NN-101-121-Weatherproof-300x300 (1)

Models: 101NN, 121NN
Ranges: 3 to 500 psid, 0.2 to 35 bar
Certifications: Unit: CE, CSA, INMETRO, RTN, SIL
Warranty: 3 Years

101/121 NN model single diaphragm differential pressure switches are built rugged for low-to-high differential pressure, fluid power or process applications where high and varying static pressures, high overrange, proof, shock pressure or cycle rates are expected.              

These, field-mounted instruments feature a flexible modular design that provides cost effective sensing solutions for air, oil, water and non-corrosive process fluid applications. The two-piece piston design allows for complete differential pressure reversal without damage.

  • Low Cost
  • Ranges from 3 to 500 psid
  • Set point adjustment with calibrated scale

Datasheet

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Single Diaphragm – Weatherproof Differential Pressure Switch with Terminal Block Connections

DPS_RN-101-121-Weatherproof-300x300

Models: 101RN, 121RN
Ranges: 3 to 500 psid, 0.2 to 35 bar
Certifications: Unit: ATEX (IS), CSA, INMETRO, RTN, SIL
Warranty: 3 Years

SOR 101/121 weatherproof differential pressure switches are suited for low-to-high differential pressure, fluid power or process applications where high and varying static pressures, high overrange, proof, shock pressure or cycle rates are expected. They are one of the best performing differential tops in repeatability and designed for use in non-corrosive process media. Optional components may be added for corrosive environments.

The 101RN and 121RN are low-cost, rugged, field-mounted instruments incorporating a flexible modular design that provides cost effective sensing solutions. The two-piece piston design allows for complete differential pressure reversal without damage.

  • Low Cost
  • Ranges from 3 to 500 psid
  • Set point adjustment with calibrated scale
  • Versatile – several housing, switches and diaphragm options
  • Worldwide agency listings

Datasheet

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Weatherproof Low Range Differential Pressure Switch

DPS_22RB-Weatherproof_1-300x300

Models: Series 20
Ranges: 0.25 in. WCD to 75 psid
Certifications: Unit: CSA, SIL
Warranty: 3 Years

The low-range Series 20 weatherproof differential pressure switch is protected by a weatherproof housing that helps preserve the unit from the process media and the elements.  It resists potentially damaging friction and wear while yielding excellent repeatability in non-hazardous environments. Long-lasting durability is further achieved through rigid quality standards that are maintained from raw materials to finished product.

  • High repeatability
  • Narrow dead band
  • Minimal set point drift
  • Negligible temperature effect and static influence
  • Field adjustable with no special tools required

Datasheet

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