Radiator Angle Valve ARCO 1/2" x 1/2" M30 (model 501275)

Radiator Angle Valve ARCO 1/2" x 1/2" M30 (model 501275) is a right-angle shut-off and regulating valve designed for use on radiator connections in central heating systems. It provides a compact connection between the radiator inlet and the supply pipe, using standard 1/2" thread dimensions and an M30 fitting interface to match common radiator tailpieces. The valve is intended to allow isolation, flow regulation and balancing of individual radiators during installation, maintenance or system tuning.

Advantages

The angle valve offers a space-saving 90° design that simplifies piping layout in confined installation areas. It enables reliable shut-off and incremental adjustment of flow to a radiator section, supporting accurate balancing of heating circuits. The valve construction is compatible with standard radiator fittings, facilitating quick replacement or retrofitting without major modifications to existing plumbing. Its straightforward mechanical operation requires no external power.

Suitable for

• Domestic and small commercial central heating radiators
• Replacement or retrofit of existing radiator valves
• Isolation of a single radiator for maintenance or repair
• Balancing hydraulic circuits within heating systems

Key specifications

• Connection type: right-angle (90°) radiator valve
• Thread dimensions: 1/2" x 1/2" compatible with standard radiator and supply pipe fittings
• Radiator tailpiece interface: M30 thread-compatible connection
• Function: shut-off and flow regulation for radiator sections
• Application: central heating systems, hot water heating circuits

How to use

Install the angle valve between the radiator tailpiece and the supply pipe using appropriate sealing (for example PTFE tape or sealing washers) and follow standard plumbing practices. Ensure the system is depressurized and cooled before removing any existing fitting. Tighten connections to a secure, leak-free fit without over-torquing the fittings. Use the valve spindle to close or open flow; small adjustments allow balancing of radiator output. After installation, slowly repressurize the system and check for leaks.

Usage recommendations

For safe installation and reliable operation, use compatible 1/2" supply fittings and verify the M30 radiator tailpiece fit before purchase. When performing maintenance, isolate and drain the circuit as needed and retighten connections after thermal cycling. If uncertain about installation, consult a qualified heating engineer to ensure correct sealing, alignment and system balancing.