Angular Radiator Shut-off Valve CALEFFI 3/4” (model 431503)

Angular radiator shut-off valve CALEFFI 3/4” is a compact angled valve designed to isolate and regulate flow to a radiator in central heating systems. The valve suits installations with angled connections where a 3/4” thread is required and provides a reliable shut-off point for maintenance, radiator replacement, or flow balancing. Constructed to work with typical residential and commercial heating circuits, this CALEFFI valve is intended to integrate with standard radiator tails and pipework while allowing easy manual operation.

Advantages

This angular shut-off valve offers straightforward isolation and flow control for radiators, enabling quick disconnection during servicing without draining the entire system. Its angled orientation simplifies connection in tight or offset installations and reduces stress on pipe fittings. The valve is made by a reputable heating components manufacturer and is engineered for compatibility with common heating system configurations requiring a 3/4” radiator valve.

Suitable for

• Residential central heating radiators with angled connections
• Commercial heating systems requiring radiator isolation
• Radiator replacement or maintenance where local shut-off is needed
• Installations that require a compact angled valve to fit limited space

Key specifications

• Connection type: angled radiator valve for 3/4” threaded connections
• Function: manual shut-off and flow control for individual radiators
• Application: central heating systems (residential and commercial)
• Orientation: angular/angled body to suit offset piping
• Operation: manual spindle/handle control for opening and closing

How to use

Install the valve on the radiator inlet or outlet using the matching 3/4” threaded connection, ensuring threads and sealing surfaces are clean and use appropriate sealing material if required. Tighten to the recommended torque for your piping material and check alignment so the valve body fits the angled piping run without putting strain on fittings. Operate the valve by turning the spindle or handle to open or close the flow; verify tightness and absence of leaks after pressurising the system. For service, close the valve to isolate the radiator before draining or disconnecting the radiator connection.

Usage recommendations

Use the angular shut-off valve for individual radiator isolation and regular maintenance access. Check seals and connections after installation and periodically inspect for leaks or corrosion. When replacing radiators, close this valve to minimise system drainage and follow local regulations for safe handling of heating system fluids and pressure testing.