A couple of question about HOG isolation manifold.

[elan]

1. What type of seal do you, guys, use between the stem and the bonnet nut ? Is it radial with a backup ring like Halcyon or it's a face seal with teflon washer like say thermo?
2. Which side of the manifold is closed by the seat when the isolator valve is closed ?

Is there any schematic diagram available ?

Thanks a lot.

 

[cerich]

like thermo

don't understand your second question

yes, It's however on my desktop at work and I am a week away from that... :-(

 

[eelnoraa]

Wait, my thermal manifold uses 2 radio o-ring on each side just like the halycon. It is definitely not face sealed. I think only very old thermal uses face seal.

 

[elan]

like thermo

don't understand your second question

yes, It's however on my desktop at work and I am a week away from that... :-(

Thanks a lot for the answers.
Let me elaborate on the second question.

When the isolator is closed one side is blocked by the seat sealing on the orifice and the other side remains open and the air is locked by the stem and bonnet nut seal.
IIRC on termo its the left side that is closed by the seat and on halcyons its the right.

One more question. What type of the seal is used between the bonnet nut and the valve body: copper washer or an o- ring?

Thanks again

 

[elan]

Wait, my thermal manifold uses 2 radio o-ring on each side just like the halycon. It is definitely not face sealed. I think only very old thermal uses face seal.

Thats correct , but I was asking about stem to bonnet nut seal.