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The MacTRV 15mm White Head TRV & Lockshield Pack is a complete solution for controlling radiator temperature efficiently. Featuring a 15mm angled thermostatic radiator valve and matching lockshield, it allows precise heat regulation while improving energy efficiency. With a liquid-filled sensor and built-in frost protection, it ensures consistent performance in domestic heating systems.
The MacTRV 15mm White Head TRV & Lockshield Pack is designed to provide accurate and reliable temperature control within central heating systems. Supplied as a complete set, it includes a 15mm angled thermostatic radiator valve (TRV) and a lockshield valve, offering everything needed for effective radiator management.
The TRV features a liquid-filled sensing element, allowing it to respond quickly to changes in room temperature and maintain a consistent level of comfort. This helps reduce energy consumption by preventing overheating and improving overall system efficiency. Integrated frost protection ensures the system continues to operate safely during colder conditions, helping to protect pipework and radiators from freezing.
Its fully reversible design allows for flexible installation, making it suitable for a wide range of radiator configurations. Manufactured to meet EN215 standards, the valve delivers dependable performance and long-term reliability in domestic heating applications.
The included lockshield valve enables system balancing by controlling the return flow, ensuring even heat distribution across all radiators. Together, the components in the MacTRV 15mm White Head TRV & Lockshield Pack provide a practical and efficient heating control solution.
Features & Benefits ✅ 15mm angled TRV with matching lockshield valve ✅ Liquid-filled sensor for responsive temperature control ✅ Built-in frost protection for cold conditions ✅ Fully reversible design for flexible installation ✅ Helps improve energy efficiency and reduce heating costs ✅ Enables precise room temperature regulation ✅ Lockshield valve allows system balancing ✅ Manufactured to EN215 standards ✅ Ideal for domestic heating systems
Unmatched value I wouldn't buy anything else from anywhere else
Brilliant service and great pricing for us plumbers Thank you guys
MacDonald Plumbing & Heating Supplies
August 19, 2026 | Peter Butler
can't buy better
You can't buy better
Use these all the time & I am very happy with the service
MacDonald Plumbing & Heating Supplies
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