Isolating or Gate valve?

As part of the on going saga of fitting the new en-suite I have added isolating valves to all the pipes. The only thing is that I notice that even when fully open the flow rate of the taps isn't what it was before there were any valves. This has led me to be concerned that my power shower will also be "downgraded" due to the smaller bore through the isolating valves. I am considering changing the valves on the shower supply pipes to gate valves (the ones with the hand wheel). Is this a good move or am I just talking bollox?

Al.

Reply to
Allan
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Gate valves are not good at isolating. What you want are full-bore versions of the valves you are currently using, which normally have a lever arm on them rather than a screwdriver slot.

Reply to
Andrew Gabriel

You need full flow isolation valves. They're slightly larger than the service type and more expensive. They have a lever rather than a screw. A gate valve is likely not to shut off the water fully - which might be ok for washer changing, but not for removal etc if this is ever needed.

Reply to
Dave Plowman (News)

Don't ever install a gate valve. They are appalling designs. If you are worried about flow, then use full bore quarter turn lever valves.

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?ts=36042&id=17293Christian.

Reply to
Christian McArdle

Ti's so. I have just ordered a pile of full flow lever ball valves from Screwfix...now I wonder when they might be delivered!

Al.

Reply to
Allan

Like everyone else I've had problems with screwfix recently, so I tried here instead:

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and found them to be excellent. They are generally cheaper than screwfix and delivery is free on any value up to xmas.

Reply to
mackem

Toolstation also have them, part 98261 on page

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've used Toolstation more recently after the troubles with Screwfux, notable differences are:

You ALWAYS seem to get your stuff next day They are cheaper for a lot of things There is NO shipping charge at the moment They don't take down their entire website every day just before you want to look up a part / see past orders / etc. Toolstation don't have quite such a large range

Reply to
Mark Begbie

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