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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Plumbing Questions >> Stop Cock flow direction? https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1124662150 Message started by gullrock on Aug 21^st, 2005, 11:09pm

Title: Stop Cock flow direction?
Post by gullrock on Aug 21^st, 2005, 11:09pm

Please can someone explain to me why a stop cock has an arrow indicating the direction of flow, and what happens if it is fitted the wrong way round?

Title: Re: Stop Cock flow direction?
Post by billythekid on Aug 21^st, 2005, 11:57pm

the arrow indicates the direction of flow, if you put it on the wrong way the water could push the jumper closed, depending on the type of stopcock...

a stopcock is pretty much like a regular tap in construction, water goes in through one end, passes through the valve, and out the other end, but it doesnt go straight through like it would in a gate valve for example, it goes through in an S shape, in-up(through the jumper seating)-turn-out, if it was fitted the wrong way it would go in-turn-past the "tap washer"(pushing it onto the seating) and no further. Most stopcocks have jumpers that are attached via a thread to the handle so that it will hold the jumper up(open) whether the water is pushing against it or not, it still causes extra stress on the stopcock though.

Imagine the outlet on this pic comes from the side and not the bottom...

IN---> --->OUT
btk :)

Title: Re: Stop Cock flow direction?
Post by gullrock on Aug 22^nd, 2005, 9:01am

That was a very comprehensive answer - helps to know how things work rather than just doing the proper thing without knowing why you are doing it!!!!! ;D

Title: Re: Stop Cock flow direction?
Post by supersparky on Aug 28^th, 2005, 10:16pm

funnly enough, found and replaced a stop cock in my cornwall "holiday" because it forced the washer to come away and lodge onto the seating

probrably also why it constantly leaked from the top of the tap spindal even after packing it out?

ss

Title: Re: Stop Cock flow direction?
Post by billythekid on Aug 28^th, 2005, 10:20pm

wrote on Aug 28^th, 2005, 10:16pm:

wouldnt have helped, but I'll guess you didnt pack it properly because your puny little sparky arms couldnt force enough tape in! lol

btk

Title: Re: Stop Cock flow direction?
Post by supersparky on Aug 28^th, 2005, 10:25pm

lol, says the only gay plumber on the forum :o ;D

ss

Title: Re: Stop Cock flow direction?
Post by billythekid on Aug 28^th, 2005, 10:27pm

ROFLMAO

Stupid wanker dafid, could have had a bit of c()ck and bum fun there!

btk ::)

Title: Re: Stop Cock flow direction?
Post by supersparky on Aug 29^th, 2005, 12:35am

lol btk, i were talking about StopCocknot gay cock

all that talk of fitting the cock into the pipe the wrong way and stuffing something round the shaft to stop it leaking got you seeing subliminal meanings in an inocent topic ay!

don't worry btk, theres a whole sociaty out there!!!

lol

ss

Title: Re: Stop Cock flow direction?
Post by thescruff on Aug 29^th, 2005, 12:50am

I can honestly say I never run over a single one in Brighton last Saturday..

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