Decorative angled thermostatic valve set ZTM31WH (thermostatic head + thermostatic valve + lockshield) white

The decorative angled thermostatic valve set ZTM31WH comprises a thermostatic head, an angled thermostatic radiator valve and a lockshield (isolation) valve in a white finish. It is designed to regulate radiator temperature by controlling the flow of hot water in angled installations. The compact construction and neutral white appearance make the set suitable for domestic heating systems and light commercial applications where a discrete, space-saving connection and straightforward temperature control are required.

Advantages

The set combines a thermostatic head and two valves in a matched finish to provide coordinated appearance and simple installation. The angled valve body allows connection to radiators where the pipework enters at an angle, reducing the need for additional fittings. The thermostatic head enables automatic temperature regulation at the radiator level, improving zone comfort and reducing energy consumption compared with manual valves. The lockshield valve offers isolation and balancing capability for system commissioning and maintenance.

Suitable for

• Domestic radiators with angled inlet connections
• Light commercial heating systems requiring compact valve fittings
• Retrofit projects where matched decorative finishes are preferred
• Rooms needing individual radiator temperature control and balancing

Key specifications

• Configuration: angled thermostatic radiator valve with thermostatic head and lockshield isolation valve
• Finish: white decorative coating
• Function: automatic temperature regulation at radiator; manual isolation/balancing via lockshield
• Connection orientation: angled inlet suitable for radiators with non-axial pipe connections
• Typical installation: closed hot-water central heating systems for domestic and light commercial use

How to use

Mount the angled thermostatic valve set in place of the existing radiator valves, ensuring correct orientation for the angled inlet. Connect the supply and return pipework according to the radiator manufacturer’s guidance and secure the lockshield valve on the return side. Fit the thermostatic head onto the valve spindle and set the desired control position; the head will modulate flow automatically to maintain the selected room temperature. Use the lockshield for system balancing and to isolate the radiator when maintenance or removal is required.

Usage recommendations

For reliable operation, install the set where the thermostatic head is not obstructed by curtains or furniture and is exposed to room air for accurate temperature sensing. Commission the heating system by balancing radiators with the lockshield valve and follow standard practices for bleed and refill procedures. If uncertain about compatibility with existing pipework or radiator fittings, consult a qualified heating engineer.