Buying Used Regulators?

[USdiver1]

Not an illness or an addiction. See IRS form 8949. It is an investment.

That's what I keep telling her, that and It's cheaper than therapy.

 

[sharky0127]

Hi

Does anyone have the service manual for Conshelf SE First Stage and 2nd Stage? Also, please part numbers of the service kits.

Thanks
Angel

 

[USdiver1]

Ask and ye shall receive..

 

[Rubidium777]

I bought a new regulator 20 years ago and had it serviced before putting it away sealed in plastic bag.
I am wondering, if properly stored, is it possible the seals and rubber is still good (no exposure to ozone or temperature. I realize it has to be serviced before anyone uses it, but curious if anyone has experience?

 

[happy-diver]

Following a quick check and leak test I would have no hesitation in using it sans service

 

[sharky0127]

Ask and ye shall receive..

Hi USDiver1

Thanks a lot

 

[Zef]

Hi

Does anyone have the service manual for Conshelf SE First Stage and 2nd Stage? Also, please part numbers of the service kits.

Thanks
Angel

According to the Aqualung 2022 spare parts catalog, the conshelf 1st stage service kit part # is RA121122, the 2nd stage is listed as 900013:

-Z

 

[sharky0127]

According to the Aqualung 2022 spare parts catalog, the conshelf 1st stage service kit part # is RA121122, the 2nd stage is listed as 900013:

-Z

Very Much Appreciated Zef

 

[Eric Sedletzky]

I bought a new regulator 20 years ago and had it serviced before putting it away sealed in plastic bag.
I am wondering, if properly stored, is it possible the seals and rubber is still good (no exposure to ozone or temperature. I realize it has to be serviced before anyone uses it, but curious if anyone has experience?

In theory it *should* be good to go.
But the problem is O-rings can take a set when they are squeezed and set into a position. With 20 yo O-rings it’s possible they have been sitting static under pressure for so long that they have lost their internal spring or cushiness to provide the proper seal, especially on dynamic O-rings with a high durometer.

 

[Rubidium777]

In theory it *should* be good to go.
But the problem is O-rings can take a set when they are squeezed and set into a position. With 20 yo O-rings it’s possible they have been sitting static under pressure for so long that they have lost their internal spring or cushiness to provide the proper seal, especially on dynamic O-rings with a high durometer.

Thanks. Eric. Is it hard to DIY replacement of orings (I have excellent mechanical skills).