Clesse High Pressure OPSO Internally Sensed 3/4" – In-Line Over Pressure Slam Shut Valve for LPG Systems
The Clesse High Pressure OPSO Internally Sensed Unit (3/4") is a must have for LPG bulk tank installations especially where polyethylene (PE) pipework is used. Designed to protect gas systems from overpressure situations, this in-line OPSO is installed after the first-stage regulator to give downstream protection.
When system pressure exceeds the pre-set limit the OPSO’s slam-shut mechanism will automatically shut off the gas supply, no damage and no danger. Reset can only be done manually to give controlled reactivation and maximum safety.
Only suitable for LPG applications the Clesse OPSO unit is for situations where the first-stage regulator does not have an integrated OPSO device. Built to BS EN 13785 it’s accurate, durable and compliant in one robust design.
Features
Extra Safety – Protects gas installations especially PE pipework from overpressure events with a slam-shut safety mechanism.
Automatic Shut-Off – Cuts gas supply when pressure goes above the pre-set limit, gives downstream protection.
Manual Reset – Can only be reactivated manually via a clear reset cap, gives controlled and safe operation.
Internally Sensed OPSO – Designed for internal pressure monitoring and reliable activation.
LPG Only – Only for LPG installations, adds safety to bulk tank systems.
Customisable – Adjustable activation range (2–4 bar) with factory set point at 2.5 bar.
Robust – Built to BS EN 13785 for long lasting safety and compliance.
Ideal Add-On Safety – For installations where the first-stage regulator does not have OPSO protection.
Ideal For
Domestic & commercial LPG bulk tank installations
Systems with polyethylene (PE) pipework that requires extra safety
Setups without OPSO in the first-stage regulator
Installers and engineers that need a adjustable slam-shut safety device
Upgrade your LPG system’s safety with the Clesse High Pressure OPSO Internally Sensed 3/4" – designed to deliver reliable overpressure protection and peace of mind. Order now for professional-grade safety in your bulk tank installation!
Specification
Clesse High Pressure OPSO Internally Sensed 3/4" Specification
Brand
Clesse
Standards
BS EN 13785
Capacity
120 kg/h
Inlet
3/4" Bsp female
Outlet
3/4" Bsp female
Operating Pressure
OPSO only – 2.5 bar (adjustable 2–4 bar)
OPSO
Yes – internally sensed
UPSO
No
Inlet Pressure
1.5 to 16 bar
Pressure Release Valve
No
Pressure Test Point
No
Stage
First Stage High Pressure
Suitable Application
Propane bulk tank installations
Guarantee
2 Years
Features
Clesse High Pressure OPSO Internally Sensed 3/4" Features
Enhanced Safety – Protects gas installations, especially PE pipework, from dangerous overpressure events with a slam-shut safety mechanism.
Automatic Shut-Off – Cuts gas supply when pressure rises above the pre-set limit, ensuring downstream protection.
Manual Reset – Can only be reactivated manually via a clear reset cap, ensuring controlled and safe operation.
Internally Sensed OPSO – Designed for accurate internal pressure monitoring and dependable activation.
LPG Only – Exclusively suitable for LPG installations, enhancing safety in bulk tank systems.
Customisable Settings – Adjustable activation range (2–4 bar) with factory set point at 2.5 bar.
Robust Construction – Engineered to meet BS EN 13785 standards for long-lasting safety and compliance.
Ideal Add-On Safety – Perfect for installations where the first-stage regulator does not include OPSO protection.
