Thermostatic Radiator Valve Head CALEFFI 200000 — thermostatic actuator for radiator valves

Thermostatic radiator valve head CALEFFI 200000 is a compact thermostatic actuator designed to regulate room temperature by modulating the opening of compatible radiator valves. Intended as a replacement head for central heating radiators, this CALEFFI unit senses ambient temperature and moves the valve spindle to maintain the setpoint, enabling individual radiator control and improved comfort in residential and light-commercial installations.

Advantages

This thermostatic actuator offers straightforward temperature control with a compact design that fits standard radiator valve assemblies. It operates without external power, using a temperature-sensitive element to drive valve movement for reliable, maintenance-light performance. The CALEFFI 200000 is engineered to be compatible with a range of valve bodies and to provide a consistent response to setpoint changes, simplifying retrofits and replacements in existing heating systems.

Suitable for

• Individual radiator temperature control in apartments and houses
• Retrofit replacement of existing thermostatic heads on compatible radiator valves
• Light-commercial heating zones where room-level regulation is required
• Systems without electrical control where mechanical thermostatic regulation is preferred

Key specifications

• Function: Mechanical thermostatic actuator for radiator valves
• Control method: Temperature-sensitive element (self-operated)
• Mounting: Designed for direct attachment to compatible valve bodies (standard valve coupling)
• Temperature adjustment: Manual setpoint selection on the actuator head
• Application: Central heating radiators in residential and light-commercial environments
• Construction: Compact housing suitable for confined radiator valve installations

How to use

Install the CALEFFI 200000 by removing the old thermostat head and fitting the new actuator onto the valve spindle according to the valve manufacturer's alignment marks. Ensure the valve is in the open position before mounting the head, then secure it using the built-in coupling mechanism or fixing clip. Set the desired room temperature on the head's dial; the built-in temperature-sensitive element will expand or contract to modulate the valve opening and maintain the selected setpoint. No electrical connection is required.

Usage recommendations

For accurate regulation, position the thermostatic head where it senses room air rather than direct sunlight, drafts, or heat sources. Periodically check operation and clear any dust around the sensing element. When replacing an existing head, verify compatibility with the valve body and consult the valve manufacturer's instructions if necessary.