22mm Full Bore Isolating Valve
torque to operate too high
Before fitting I found the torque required to close the valve excessive, but thought it may reduce once broken away and with a pipe to help hold it.
Fitted fine and no leaks. However breakaway torque required to open or close the valve is far too high, and the screwdriver flats are rounding out already - so fearful am I whether there is any chance of operating these in two years time with restricted access that I am stripping them out now and replacing them with a lever operated full bore valve. I suggest you go straight for one of those instead.
Easy fit with hex on body
No leaking on first fit
Breakaway torque far too high so screwdriver flats already rounding out
Need to be really precise to shut off flow
16 Feb 2015
Leaked - don't buy
Worked fine for 15 months but then had to use for the first time to isolate the hot and cold supply to a bathroom. As soon as the screw was turned they both started leaking through the screw hole. Had to drain down the entire system so they were were useless for the task for which they were bought. Given that other reviewers have reported similar problems Screwfix should stop selling. Have replaced with WRAS and British Gas approved full bore lever valves. Would have got top marks for value had they worked, but it's cost me a lot to replace them so they were a false economy.
13 Mar 2014
I used a pair of these valves to plumb in a booster pump for my hot water system. They seal so well that I have been able to use them to isolate the hot system instead of relying on the old gate valve, which these days would let a double decker bus through.
Most important:The full bore design does not hinder the water flow too and from the pump, which is essential.
# Quality is excellent.
# Fitting is a piece of cake.
# I can't comment on the reliability, they have only been installed a month, but I think they should be very reliable give the build quality.
28 Aug 2013
Installed one during renovation project.
Ball seized after several months, tried soaking in penetration / lube oil - no good. Would not buy 22mm version again. Would not budge. Rubbish
(15mm version installed alongside ok) - will try 22mm lever option instead
16 Aug 2013