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Product Details

Allows system to be sealed by producing a vacuum, thus valves can be changed without draining the system.

Technical Specification
Manufacture ID RVCK
Type Valve Change Kit
Type Accessories
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

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Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 9pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Radiator Valve Change Kit is rated 4.4 out of 5 by 20.
Rated 5 out of 5 by from A clean and simple valve change A heating engineer told me about these rubber stoppers and how it makes changing a radiator or radiator valves really easy, I used them to change for valves and I only got a but a pint of water out of each radiator which I drained in to a rubble sack without any spillage.
Date published: 2019-10-04
Rated 5 out of 5 by from Handy tool Bought to change a leaking radiator valve and how i wished i had bought one years ago. Prepared for the worst just in case i botched it but a ground flor rad leaked off about a pint before the vacuum set up. Valve switched with only a minor dribble. I am a capable DIYer not a professional so i can see why they would use this to save a full drain down.
Date published: 2019-10-01
Rated 4 out of 5 by from Did the job! I bought these to avoid draining the whole system when changing a radiator valve, and they worked very well. They are not all that flexible, so you have to push them pretty hard into the pipes, but they held OK and the vacuum obviously helps when you open the pipe or valve where you are working. I reckon only a pint or so of water came out, and I was able to finish the job very easily. Don't forget you can only work on ONE valve at a time!!! More than one opening in the system will allow air in and water out, so plan your work accordingly :) As a side note, if you have a couple of bottle stops (the kind of thing you use if you don't finish a bottle of wine - yeah, I know, who doesn't finish a bottle of wine???) then these would do an identical job. Or, in my case, a 22mm push-fit stop end would have done for the vent.
Date published: 2019-05-08
Rated 4 out of 5 by from Saved floods Turned what could have been a flood into a dribble.
Date published: 2019-04-30
Rated 5 out of 5 by from Work great Used to replace a radiator valve on my system - worked great and no need to drain the system
Date published: 2019-04-15
Rated 5 out of 5 by from Does exactly what it says Leaking valves on a towel rail, realy didn't want to drain the system. This kit allowed a quick swap of the valves without draining the system, Nice. I'll definately keep these handy in the future.
Date published: 2019-02-20
Rated 5 out of 5 by from Great Wasnt sure about buying this product but good well made product which does work except that i didnt read the instructions correctly first time but was great second time
Date published: 2018-10-27
Rated 5 out of 5 by from Worked perfect Used to assist in changing a downstairs radiator valve. Turned the heating off and shut down all radiator valves in the house. Turned off the inlet to the heating header tank in the loft. Pressed and twisted these rubber bungs in the header tank outlet and expansion tank (fitted firm, secure and aligned with pipes). Gently undid valve to be replaced. Slight dribble of water the the vacumn effect on the pipes worked perfect. Made changing the valve a doddle. However the bungs may become worn and not seat properly after several uses. So use with caution.
Date published: 2018-10-20
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