LavaTap Radiator Valve Change Kit – Vacuum Seal Radiator Bung for Radiator Valve Replacement Without Draining – Fits 15mm & 22mm Pipes – Plumbing Tool for Central Heating Maintenance

• Change Valves Without Draining : Prevents system drain-down by sealing radiator pipes with vacuum-sealing rubber bungs, saving time and avoiding water waste
• Creates a Vacuum Seal to Prevent Air Locks: Maintains system pressure and prevents air entering during valve changes, ensuring efficient radiator performance
• Fits 15mm and 22mm Radiator Pipes: Compatible with standard UK pipe sizes often referred to as ½ inch and ¾ inch, making this kit suitable for most systems
• Durable Rubber Bungs for Reuse: Each bung is made from chemical-resistant rubber for repeated use in plumbing work, resisting pressure and maintaining shape
• Compact Solution for Fast Valve Replacement: Ideal for emergency fixes or planned upgrades, this kit speeds up radiator servicing in homes or commercial jobs
• Works with Common Plumbing Tools: Use alongside radiator bleed kits, drain down hoses or inhibitor treatments to streamline heating maintenance tasks

The LavaTap Radiator Valve Change Kit is a must-have plumbing solution for radiator servicing in central heating systems. This compact tool allows you to change or service radiator valves without draining the entire system, thanks to a pair of precision-engineered rubber bungs that create a temporary vacuum seal at the pipework. By inserting the bungs into the exposed radiator valve inlets, the LavaTap kit safely isolates the radiator, preventing water from leaking and minimising disruption to the rest of the system. It works with standard 15mm and 22mm radiator pipe sizes — equivalent to ½ inch and ¾ inch pipes — making it widely compatible with UK homes and commercial systems alike. Ideal for use when replacing TRVs (thermostatic radiator valves), lockshield valves, or applying central heating inhibitor, this tool is trusted by heating engineers, plumbers, and savvy DIYers. It can be used in conjunction with radiator bleeding kits, pressure testers or chemical dosing devices, streamlining multiple heating tasks into one efficient process. Each bung is made from durable, pressure-resistant rubber and is reusable across jobs, offering long-term value for maintenance professionals. Whether you're responding to an emergency repair or upgrading an entire system, the LavaTap Radiator Valve Change Kit makes the job cleaner, faster, and more efficient — all without draining the heating system.