Thermostatic radiator valve straight Herz 1/2" model 1772391

Straight thermostatic radiator valve Herz 1/2" model 1772391 is a compact control fitting for central heating radiators. Designed to accept a separate thermostatic head, this valve enables automatic modulation of hot water flow into a radiator to maintain a set room temperature. The straight connection and 1/2" thread size make it suitable for direct installation on radiators with matching inlet fittings in residential and commercial heating systems.

Advantages

The valve provides precise flow control when combined with a thermostatic head, allowing stable indoor temperature and energy-efficient operation. Its straight-body design simplifies installation in standard radiator connections and replacement jobs. Constructed for compatibility with common central heating setups, the valve offers reliable operation and straightforward maintenance without requiring additional adapters when installed on 1/2" compatible radiators.

Suitable for

• Domestic and apartment radiators with 1/2" inlet connections
• Commercial heating installations where individual radiator control is needed
• Replacement of existing straight radiator valves with 1/2" threads
• New radiator installations requiring thermostatic control heads (sold separately)

Key specifications

• Connection type: straight radiator valve with 1/2" threaded inlet
• Function: thermostatic valve body designed to accept a thermostatic head for automatic temperature regulation
• Application: central heating radiators in residential and commercial buildings
• Material and finish: corrosion-resistant metal construction suitable for hot water systems (manufacturer standard)
• Mounting: inline installation directly to radiator inlet with standard fittings

How to use

Install the valve on the radiator inlet using the matching 1/2" connection, ensuring sealing with appropriate fittings or tape as required by the radiator manufacturer. After mechanical installation, attach a compatible thermostatic head (sold separately) to the valve spindle following the head manufacturer's instructions. The thermostatic head will sense ambient temperature and modulate the valve to control flow and maintain the setpoint. For safe and correct installation, isolate the heating circuit and drain the radiator before removal or fitting of the valve.

Usage recommendations

The valve should be paired with a Herz-compatible thermostatic head or another head that matches the valve's mounting interface. Use on systems with correct water quality and pressure for central heating; perform periodic checks for leaks and ensure the valve spindle moves freely when servicing. For best results, balance the heating system after installation to ensure even heat distribution.