Honeywell Essential 15mm TRV & Lockshield Valve Pack VTL15-15A

This is an Essential 15 mm TRV & LS Pack, a matched thermostatic radiator valve and lockshield valve set for controlling heat output on a radiator circuit. It is supplied under the Honeywell Controls range and carries the product code VTL15-15A. The TRV regulates flow according to the set temperature, while the lockshield valve balances the radiator on the return side.

• The valve head no longer responds to the set position or the radiator stays cold regardless of adjustment
• Water weeping from the spindle, gland nut or compression joint
• The valve body is seized, so the radiator cannot be isolated or balanced
• The head is damaged, cracked or has been knocked off the body
• Persistent overheating or underheating that cannot be corrected by balancing

• Confirm the pipework is 15 mm at the valve positions on both flow and return
• Check the valve tails and connections match the existing radiator tappings
• Verify whether both valves on the radiator require replacement before ordering a pack
• Note the system type and drain-down requirements before starting the swap