Clesse Manual Wall Mounted Changeover With CSR OPSO

Clesse CSR485 Wall Mounted Regulator Kit with OPSO – 37mbar 4kg/h (Twin Pigtail)

Wall-mounted low-pressure regulator kit with integrated OPSO (Over Pressure Shut Off) safety system. Complies with UK safety standards for fixed pipework installations. Ideal for use in domestic, commercial, catering, inland waterways, holiday homes, and park home LPG systems.

Features:

• Over Pressure Shut Off (OPSO) safety system
• Wall-mounted manual changeover regulator
• Outlet pressure: 37mbar (preset)
• Flow rate: 4kg/h (approx. 55kW)
• Inlet pressure range: 1 – 16 bar
• Outlet connection: 1/2" BSP female
• Relief valve set at 75mbar
• Suitable for propane LPG cylinders
• Complies with BS 6891 Annex E and COP32 safety standards
• Clesse Part Number: UUCSR485MCO

Kit Includes:

• CSR485 wall mounted manual changeover regulator
• 2 × 20" rubber LPG pigtails
• 1/2" emergency control butterfly ball valve
• 1/2" test point
• LPG safety plaque
• Screws and rawlplugs

Product Notes:

This twin-cylinder regulator kit offers safe, stable gas supply with manual changeover capability. The OPSO mechanism protects downstream installations by shutting off gas in the event of excess pressure, meeting the latest safety requirements for fixed pipework LPG systems.

What is OPSO?

OPSO stands for Over Pressure Shut-Off. It’s a built-in safety feature that automatically cuts off the gas supply if the outlet pressure rises above safe operating levels. This protects appliances from damage and helps prevent gas-related accidents.