Sealing threads on central heating pump?

[Tundrawolf]

Hi all a quick question if I may, do you recommend using PTFE or any form of sealing compound on the treads of a central heating pump when it is changed?

 

[Burnerman]

Certainly it can't do any harm, but use non setting compound if you intend to. Make sure that new fibre washers are fitted too!

 

[gaspro1981]

by threads i assume you mean pump unions, clean off the face of the union and fit new washers/gaskets apply a little boss white or jet blue and all will be well

 

[gas_man_gaz]

nope, jus clean the surface of the pump valves and fit new rubber washer's (norm supplied with a grundfos), the thread on the pump doesn't form any part of the seal

 

[kevplumb]

Hi all a quick question if I may, do you recommend using PTFE or any form of sealing compound on the treads of a central heating pump when it is changed?

anything on the threads is a waste of time try putting it on the faces or get some rubber washers

 

[namsag]

THRICE, Rubber washers. no need for anything else

 

[Tundrawolf]

Thanks all.

 

[Norcon]

PTFE or a liquid form of lubricant on the threads will assist dismantling a few years down the line and the three foot stilson and 6 foot scaffolding pole can stay in the van.