expansion tank bungs

[circuitman]

Hi,
Does anyone know where I can get the really good bungs (the ones that have a smooth taper and jubilee fitting to go on the external of the expansion pipe). I only seem to be able to find the stepped ones that only fit badly.
Thanks.

 

[lame plumber]

I dont like loft spaces (stiff knees and ladders dont mix), so I prefer a freezer unit, less risk of sudden wet feeling at ankle level as the rad lifts off the wall, however I think I got my bungs off regin display board in merchants

 

[TBServices]

Got a rad valve change this week and considering buying some bungs, although I've never used them. It's on a microbore y plan, I'm just not sure i have the confidence required in these things.

 

[Gmaservices]

I've got regin ones, there very handy save a lot of time!

 

[Skelly87]

I always use my rothenburger electric pipe freezing kit where possible. Got bungs too but have little faith

 

[dancinplumba]

are you changing valves as well ? try a carrot for feed and a spud for vent, works for me :grin:

 

[TBServices]

Freezer would be no good for this job even if I had one lol.

It's a fairly big house, so concerned about filling up problems/air locks etc. how do you use these things safely?

 

[gasmanrob]

tbs, why?
ive done heat exchanger replacements on bungs.
you need to drain out about 3-5 liters after fitting the bungs to get a solid seal on the bungs. word of advice though never attempt it it there is a thermal store fitted as you will end up with a store that resembles a crushed coke can.
regin bungs are the smooth tapered ones got mine from hrpc but dont know if they still do then as i havent been in there for years. a few people on here arer now using jetsweat expansion plugs but they arent cheap.

 

[lame plumber]

why is a freezer no good then, short pipe runs to rad or hidden behind rad

 

[TBServices]

tbs, why?
ive done heat exchanger replacements on bungs.
you need to drain out about 3-5 liters after fitting the bungs to get a solid seal on the bungs. word of advice though never attempt it it there is a thermal store fitted as you will end up with a store that resembles a crushed coke can.
regin bungs are the smooth tapered ones got mine from hrpc but dont know if they still do then as i havent been in there for years. a few people on here arer now using jetsweat expansion plugs but they arent cheap.

I've never used them before, always gone for drain down in past. Got 4 rad valves to swap on 2 rads, so could be a real time saver, just got no confidence in them. Need convincing lol.

Would you turn off all rads or is there enough of a vacuum left open?

 

[TBServices]

why is a freezer no good then, short pipe runs to rad or hidden behind rad

Hep street elbows straight out of wall.

 

[lame plumber]

quality install then, good luck, bungs it is

 

[BLOD]

are you changing valves as well ? try a carrot for feed and a spud for vent, works for me :grin:

lol - boiled or roasted ?

I use a lump of plumbers mate in an old flanel and a push fit stop end

 

[leelister6]

Been using bungs for about 7 years and never had a problem. Just have to make sure they're fitted nice and tight. Saves loads of time and headaches.

 

[Dannyparty92]

Why can't you bung on a system with a thermal store?

 

[albabe]

Try ARK Heating Suppliers. 020 8568 7521. They stock em.

 

[GrahamM]

I've never used them before, always gone for drain down in past. Got 4 rad valves to swap on 2 rads, so could be a real time saver, just got no confidence in them. Need convincing lol.

Would you turn off all rads or is there enough of a vacuum left open?

As gasmanrob. Used reign bungs to change pumps, zone valves and rad TRV's. Just make sure got good seal. Bit of a pain if no outside drain as you need draw off 2-3 litres to get vacuum to hold.

 

[circuitman]

I dont like loft spaces (stiff knees and ladders dont mix), so I prefer a freezer unit, less risk of sudden wet feeling at ankle level as the rad lifts off the wall, however I think I got my bungs off regin display board in merchants

regin bungs is just what i am looking for - thanks for your help.

 

[WHPES]

Been using carrots and spuds all my working life (taught by grandpa) and always work.

Old pointy carrots that are going a bit soft work best.

 

[TBServices]

Might take a speedfit cap and a carrot with me then lol. Should I peel it first?

 

[REDSAW]

make your own with those red test tube bungs, tapered ones.

 

[Dannyparty92]

I though you couldn't change motorised valves using bungs?

 

[PETE 123]

Veg soup for dinner