Angle thermostatic valve Comap R808604 1/2" Kv 0.55 without presetting

The Comap angle thermostatic valve R808604 1/2" Kv 0.55 is a compact control valve intended for radiator and heating circuit temperature regulation. Designed for angle mounting, the valve delivers proportional flow control depending on the actuator or thermostatic head position. It is supplied without presetting to allow installers to adjust flow characteristics on site to match system requirements.

Advantages

This angle thermostatic valve offers a compact footprint suited for connections with limited space and provides stable proportional control with a Kv of 0.55 for moderate flow applications. Supplied without factory presetting, the valve gives flexibility during commissioning and balancing. The construction and flow characteristic are intended to ensure predictable behaviour with common thermal actuators and heads, supporting accurate temperature control and reduced hydraulic noise when correctly set.

Suitable for

• Domestic radiator temperature control in apartments and houses
• Small commercial heating circuits and localized zone control
• Systems requiring compact angle-mounted valves due to piping layout
• Installations where on-site balancing and manual presetting are preferred

Key specifications

• Connection type: angle (90°) connection
• Nominal size: 1/2"
• Flow coefficient (Kv): 0.55 m3/h
• Control characteristic: proportional flow depending on actuator position
• Supply condition: delivered without presetting to allow manual adjustment

How to use

Install the valve in the radiator return or supply line according to the piping layout, ensuring correct orientation for angle mounting. Connect the matched thermostatic head or actuator to the valve spindle and verify mechanical compatibility. During system commissioning, set the valve flow either by adjusting the actuator position or by manual balancing if required. Ensure tight, leak-free connections and test operation across the range of control positions to confirm the expected proportional response and stable temperature regulation.

Usage recommendations

For accurate control and low noise, commission the valve with the intended actuator and perform hydraulic balancing after the system reaches operating temperature. If fine adjustment is needed, use the on-site presetting procedure and verify resulting flow rates. Follow local installation standards and Comap guidelines for mounting orientation and sealing methods.

Keywords: Comap angle thermostatic valve, 1/2" thermostatic valve, Kv 0.55 valve, radiator valve without presetting, angle heating valve.