hmv4u
Full Member
Posts: 145
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Post by hmv4u on Apr 24, 2019 23:42:13 GMT
on Saturday I intend to do some pipe work which will involve draining the central heating system,the down stair radiators have drain off valves but I'm a bit puzzled about how they work,normal drain off valves have a barbed bit for the hose and a square bit you use to open them but these have a barbed bit with the square inside ?
its appears you have to open them first then jam on the hose,is this correct or am I missing something obvious ?
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Post by dickpuller on Apr 25, 2019 5:26:11 GMT
on Saturday I intend to do some pipe work which will involve draining the central heating system,the down stair radiators have drain off valves but I'm a bit puzzled about how they work,normal drain off valves have a barbed bit for the hose and a square bit you use to open them but these have a barbed bit with the square inside ? its appears you have to open them first then jam on the hose,is this correct or am I missing something obvious ? Is it in the radiator valve matey? |
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Post by rocketmanbkk on Apr 25, 2019 6:01:59 GMT
If it what I’m thinking of you’re right.
Any pics?
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Post by dickpuller on Apr 25, 2019 6:52:39 GMT
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Post by tomplum on Apr 25, 2019 10:47:01 GMT
turn both sides of the rad off, remove the drain off nipple, have a bowl ready to catch drips and attach hose pipe, then open the valves,  |
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Post by cylinderfella on Apr 25, 2019 11:54:04 GMT
You'll be able to remove the nipple with a rad bleeding key. Might need to grip key with some pliers if it's there for years.
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hmv4u
Full Member
Posts: 145
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Post by hmv4u on Apr 25, 2019 19:40:46 GMT
sorry for the delay,yes its like those |
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hmv4u
Full Member
Posts: 145
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Post by hmv4u on Apr 25, 2019 19:53:16 GMT
turn both sides of the rad off, remove the drain off nipple, have a bowl ready to catch drips and attach hose pipe, then open the valves, ah I see,so in effect closing the radiator valve closes the drain off,now it makes sense  I had visions of having to open the bleed nipple,it flying out -water pissing everywhere and being unable to get the hose on ! thanks to everyone for your advise |
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Post by dickpuller on Apr 25, 2019 21:00:47 GMT
turn both sides of the rad off, remove the drain off nipple, have a bowl ready to catch drips and attach hose pipe, then open the valves, ah I see,so in effect closing the radiator valve closes the drain off,now it makes sense I had visions of having to open the bleed nipple,it flying out -water pissing everywhere and being unable to get the hose on ! thanks to everyone for your advise Oh that’s happened to a few Plumbers I know😄😄 As Tom has said, turn the radiator valves off & open the Drain Valve a little until the pressure dies down.👍 |
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