. Had a leek caused by this here are two male half inch but the one on the right has a very thin wall therefore less surface area causing it to cut through rubber washer like a shear

 

 

 

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A trap for young players. 

You mean the one on the left, right?

 

Sorry left


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Just now, builder said:

Sorry left


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Right.

4 hours ago, grollies said:

Right.

Left right

just an extra 100m of ptfe tape......what are you whinging about

Ptfe tape would make it worse it has to seat on gasket hence compression


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Are you sure those fittings are to use with a gasket/seal.

 

Don't normally get a fitting screwing down on a gasket/seal, it will chew it up.

 

They look like the regular tapered thread and as "eycatcher" said use more tape.

 

 

 

 

On 07/09/2017 at 0:38 PM, builder said:

 

These are two different fittings with different uses.

 

The one on the left is a standard BSPT (tapered thread) fitting.

 

 

The one on the right is a flat-face BSPP (parallel thread) fitting.

 

The fitting on the left can be used with pipe dope, PTFE, whatever as the seal is made on the threads.

 

The fitting on the right should not be used with PTFE as the joint seal is provided by a rubber gasket.

1 hour ago, Daffy D said:

Are you sure those fittings are to use with a gasket/seal.

The one on the right, yep.

 

1 hour ago, Daffy D said:

 

Don't normally get a fitting screwing down on a gasket/seal, it will chew it up.

Who told you that?

 

1 hour ago, Daffy D said:

 

They look like the regular tapered thread and as "eycatcher" said use more tape.

Er, no.

Well thank you grolies for clearing that up I did question it at the store and was told same same but and it is a big but water on top of a sheet rock coffered ceiling


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