are washers needed on brass fittings on hot water cylinders

[2 cautious]

Hi all, am about to re-new my copper direct hot water cyl. i have some parallel threaded brass unions to fit, do I need any washer between these and the cyl. or just say, tape/and or none setting paste?

Thanks for help ( and patience with such a basic question )

2

 

[justlead1]

Hi, PTFE is the norm but plenty of it. This in it self will form a washer with the surplus.

 

[SafeGasInstall]

yes ptfe will do

 

[Barry98]

the P in ptfe stands for PLENTY

 

[2 cautious]

Thanks guys.

 

[stevetheplumber]

i prefer the loose nut connectors like a 28mm tap con

 

[diamondgas]

Used that thread string just last week along with a little ptfe ... worked a treat! .......... Forgotten the name of the bleedn' stuff!! Sheeesh! Got a good tight feel when tightening up and no leaks

 

[ecowarm]

Used that thread string just last week along with a little ptfe ... worked a treat! .......... Forgotten the name of the bleedn' stuff!! Sheeesh! Got a good tight feel when tightening up and no leaks

Locktite55 ??

 

[Gray0689]

Locktite55 ??

Love it use it on everything exept rap tails as a bit messy looking on rad

 

[diamondgas]

Locktite55 ??

Thats the stuff ecowarm !! lol ... my memory's goin!! lol