3/8 Ball Valve Rubber Internal Parts?

[Pollys13]

I don't think 3/8 ball valve has rubber parts inside, that could be damaged when removing with butane torch. Just thought I'd ask to be sure
Cheers.

 

[123hotchef]

it has a rubber washer dont it and nylon slider?

 

[Pollys13]

it has a rubber washer dont it and nylon slider?

Is one of this type.

 

[WorkshopChris]

Often PTFE seals internally.

 

[Pollys13]

Often PTFE seals internally.

Are these likely to have been damaged by using butane torch to get them off

Often PTFE seals internally.

Do you they make actual PTFE internal seals, is this what you mean? Not PTFE gas tape?

 

[WorkshopChris]

Are these likely to have been damaged by using butane torch to get them off

Do you they make actual PTFE internal seals, is this what you mean? Not PTFE gas tape?

Yes, the ball often sits in a machined PTFE part to seal its not a metal to metal design.

 

[armalites]

Personally i would say if you are using heat to get it off then just fit a new one. They cost a few quid

 

[Pollys13]

Yes, the ball often sits in a machined PTFE part to seal its not a metal to metal design.

Ah, ok, so even if the valve appears to open and shut correctly. The heat could, would have damaged the seal and wouldn't find that out until I run air through them? If so will do as armalites suggests and buy replacements.

 

[brightspark]

herehttps://www.ebay.co.uk/itm/Red-Lever-Ball-Valve-Female-to-Female-Sizes-1-4-4-BSP-Full-Flow-WRAS/111476325008?hash=item19f481ba90:m:mc54Dplrf-umVd9tUDzVszQ

 

[jimi_boom]

Most cheap ball valves have soft seals, in something like that they will be PTFE or some sort of Nylon. the spindle seal wont necessarily be a soft seal its likely to be a graphite seal so that static cant build up on the ball itself.
I used to design valves so in my opinion if you've had to heat it up then its going to be better to replace it, PTFE ball valves are likely to be good to 150 degree but I wouldn't risk it.

 

[winchman]

Some you can buy kits for but I suspect a new valve wont be much

 

[Pollys13]

herehttps://www.ebay.co.uk/itm/Red-Lever-Ball-Valve-Female-to-Female-Sizes-1-4-4-BSP-Full-Flow-WRAS/111476325008?hash=item19f481ba90:m:mc54Dplrf-umVd9tUDzVszQ

Yes I saw those ones thanks

 

[Pollys13]

Some you can buy kits for but I suspect a new valve wont be much

Not a lot for full flow, bought several to cover my needs.

 

[Pollys13]

So if a seal did go because of using heat, how would the ball valve leak?

 

[brightspark]

probably just pass air when closed

 

[Pollys13]

probably just pass air when closed

ok

 

[graffian]

The ones I have taken apart have a pair of O rings sealing the ball.

 

[Pollys13]

The ones I have taken apart have a pair of O rings sealing the ball.

Thanks.