ubxdiver
Diver
Posts: 13
Joined: Sun Aug 26, 2012 4:22 pm
First Name: John
Location: Sterling Virginia

Nemrod valve removal (need help)

Sun Sep 27, 2020 7:50 pm

Trying to remove Nemrod valves from a set of triples. I'm a hair away from damaging them. Valves are on tanks last hydro's in '69. Obviously like to keep the original triple, but feel like I'm about to do damage. Have tried using Teflon padded wrenches and rubber mallet and wood shims. Bottles are Teflon taped with minor corrosion.
Help?

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antique diver
Master Diver
Posts: 2060
Joined: Sun Dec 10, 2006 12:50 pm
First Name: Bill
Location: North-Central Texas

Re: Nemrod valve removal (need help)

Mon Sep 28, 2020 8:58 am

I remove odd shaped valves (that won't accommodate a wrench) by taping 1x2 wood pieces the length of the jaws in my bench vise, then turning the tank upside down with the valve being held between the wooden "jaws". You can use thicker boards and even shape the wood somewhat to match the valve shape. The tank can usually be turned with a large strap wrench or chain tongs.
The older I get the better I was.

ubxdiver
Diver
Posts: 13
Joined: Sun Aug 26, 2012 4:22 pm
First Name: John
Location: Sterling Virginia

Re: Nemrod valve removal (need help)

Fri Oct 02, 2020 5:14 pm

The patient survived unscathed. I loathe using the bench vise on vintage pieces, but it was a do it or forget it. Thanks for the support.

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