SOR Controls Group

⚙️ Pressure runs high in oil and gas. When it crosses the line, equipment fails fast, and workers get hurt.

Mechanical pressure switches protect wellheads, compressors, and refinery vessels without needing outside power. They act the moment pressure hits the set point, no control loop required.

📍 Where they matter most:
⚡ Remote wellheads with unreliable instrument power
⚡ Compressor suction and discharge protection
⚡ Refinery overpressure alarms independent of the DCS
⚡ Safety Instrumented Systems under IEC 61511

Read the full breakdown on where mechanical pressure switches fit and how to specify one for your application: https://hubs.la/Q04nYbqg0

Shopping for a pressure transmitter? Here is what separates a good fit from a bad one. 🔧

📏 Process range: does it cover your full operating and overpressure range?

🌡️ Temperature limits: media temperature and ambient temperature both matter

🔩 Wetted materials: compatible with your process fluid?

⚡ Output signal: 4-20mA, HART, or digital protocol?

🏭 Area classification: is the location hazardous?

✅ Approvals and certifications: FM, CSA, ATEX, SIL?

📐 Process connection: does it fit your existing piping?

🛠️ Non-standard requirements: SOR Measurement and Control offers Engineered-to-Order configurations for applications standard catalog products do not cover

https://hubs.la/Q04nDnBH0

In an overpressure event, the safety layer needs to work without power, without a network, and without delay.

A mechanical pressure switch reacts the instant pressure reaches the setpoint. It closes a contact directly, no sampling or signal conversion required. That is why switches remain the standard for hardwired safety shutdowns, even on systems that also run a transmitter for continuous monitoring.

🔩 Hardwired protection that works without facility power
⚡ Direct contact closure at setpoint, no signal processing delay
🏭 Proven in oil and gas, chemical processing, power generation, and water treatment

Transmitters and switches solve different problems. Many critical applications use both.

Use our product selector to review our Mechanical Pressure Switch Options:
https://hubs.la/Q04nDkQB0