SOR
The history of SOR Inc. is founded on simple ideas that work – and they work for a very long time. It all began in 1956 with the invention of the static o-ring (SOR) pressure switch. Since the ring is static, there is no friction, and no wear and tear.
Today’s SOR® products are descendents of that original static o-ring, with minimal moving parts for unmatched quality, reliability and durability. We now manufacture nearly one hundred process instruments that are used in a variety of applications such as power generation, oil and gas, cement and water treatment.
Pressure Products
805PT Pressure Transmitter
Weather Proof (Pressure/Vacuum/Compound) Pressure Switch
Weather Proof, terminal block connections (Pressure/Vacuum/Compound) Pressure Switch
Explosion Proof, UL/CSA/ATEX (Single diaphragm) Differential Pressure Switch
Explosion Proof (Pressure/Vacuum/Compound) Pressure Switch
Explosion Proof, UL/CSA/ATEX (Pressure/Vacuum/Compound) Pressure Switch
Big Hermet - Explosion Proof, Hermetically Sealed (Pressure/Vacuum/Compound) Pressure Switch
Mini-Hermet - Explosion Proof, Hermetically Sealed (Pressure/Compound) Pressure Switch
Dual Hi-Lo - Weather Proof (Pressure/Vacuum/Compound) Pressure Switch
Dual Hi-Lo - Explosion Proof, Hermetically Sealed (Pressure/Vacuum/Compound) Pressure Switch
Adjustable Dead Band Weather Proof Pressure Switch
Omni - Weather Proof (Pressure) Pressure Switch
Adjustable Dead Band Explosion Proof Pressure Switch
Sub Mini-Hermet - Explosion Proof, Hermetically Sealed (Pressure) Pressure Switch
Weatherproof, Fixed Range Pressure Transmitter
Immersible, Fixed Range Pressure Transmitter
Mini-Hermet - Explosion Proof/Adjustable Pressure Transmitter
Pivot Seal (Pressure) Pressure Switch
Series 522CR Electronic Pressure Switch
Weather Proof (Single diaphragm) Differential Pressure Switch
Explosion Proof (Single diaphragm) Differential Pressure Switch
SGT® Electronic Pressure Instrument (Discontinued)
Mini-Hermet - Explosion Proof, Hermetically Sealed (Single diaphragm) Differential Pressure Switch
Weather Proof (Dual, opposed piston) Differential Pressure Switch
Explosion Proof (Dual, opposed piston) Differential Pressure Switch
Weather Proof (High static operation) Differential Pressure Switch
Explosion Proof, Hermetically sealed (High static operation) Differential Pressure Switch
Weather Proof (Low range) Differential Pressure Switch
Explosion Proof, Hermetically sealed (Low range) Differential Pressure Switch
Weather Proof Differential Pressure Switch (Low-range Series 20)
Explosion Proof Differential Pressure Switch (Low-range Series 20)
Bourdon Tube Weather Proof Pressure Switch
Bourdon Tube Explosion Proof Pressure Switch
Series 522CR Electronic Pressure Switch
Level Products
echOsonix® Ultrasonic Level Transmitter
echOwareTM Sensor Interface Software
Submersible Hydrostatic Pressure Transmitter
RF Level Transmitter
1500 Series Level Switches
Type 1710 Level Switch
Flanged Chamber Level Switches
Sealed Chamber Level Switches
Single Point RF Level Switch
Dual Point Ultrasonic Level Switch with Self Test
Single Point Ultrasonic Level Switch with Self Test
Top Mounted Displacer Level Switches
Thermal Differential Switch
Single Point RF Level Switch with Self Test
Top Mounted Float Level Switches
Side Mounted Level Switches
Steam Trap Level Switches
Single Point Ultrasonic Level Switch
Multipoint RF Level Switch
echOware
Temperature Products
Weather Proof (Direct or remote mount) Temperature Switch
Weather Proof, Terminal block connections (Direct or remote mount) Temperature Switch
Explosion Proof (Direct or remote mount) Temperature Switch
Explosion Proof, UL/CSA/ATEX (Direct or remote mount) Temperature Switch
Big Hermet - Explosion Proof, Hermetically sealed (Direct or remote mount) Temperature Switch
Mini Hermet - Explosion Proof, Hermetically sealed (Direct or remote mount) Temperature Switch
Flow Products
Vane Operated Flow Switch
OEM Flow Switch
Thermal Differential Switch
Nuclear Products
Pressure - Carbon steel housing for HELB applications
Pressure - Ductile iron housing for LOCA
Pressure - Stainless steel housing for HELB applications
Low Differential Pressure - High Static Pressure
Vacuum - Carbon steel housing for HELB applications
Vacuum - Ductile iron housing for LOCA
Vacuum - Stainless steel housing for HELB applications
Temperature - Carbon steel housing for HELB applications
Temperature - Stainless steel housing for HELB applications
Custom Engineered Solutions for the Nuclear Power Industry