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Old 01-03-2012, 05:39 PM   #1
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Converting a valve


I found a new old stock valve. Only problem mine is (set 10") and the new is (set 3.5"). Remember the Valve is old and parts are not available. Can I convert the valve? The springs in the old valve are corroded.

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Old 01-03-2012, 05:55 PM   #2
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Converting a valve


Quote:
Originally Posted by joebudd View Post
I found a new old stock valve.
Only problem mine is (set 10") and the new is (set 3.5").
Remember the Valve is old and parts are not available.
Can I convert the valve? The springs in the old valve are corroded.
I'm going to assume this is a gas valve of some sort with one (10") intended for LP gas and the other (3.5") intended for natural gas. Close?

The company who makes the valve (Robertshaw? ITT?) will have kits to change the regulator built into combination valves; and some are even adjustable (but don't count on that).

How about a picture of your valve?
Is it something like this:
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Last edited by TarheelTerp; 01-03-2012 at 06:04 PM.
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Old 01-03-2012, 06:26 PM   #3
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Converting a valve


Can I email them to you? Or I will try to post.
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Old 01-03-2012, 06:36 PM   #4
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Converting a valve


Converting a valve-imag0305-small-.jpgHere is a picture I have a few more if needed.
Converting a valve-tdv0234-small-.jpg

Last edited by joebudd; 01-03-2012 at 06:51 PM.
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Old 01-03-2012, 06:39 PM   #5
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Converting a valve


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Originally Posted by joebudd View Post
Here is a picture I have a few more if needed.
at least one more, yes. <-- ignore the pics are formed up now

Looking at this... you have a "pilot safety valve" not a combination valve
but NO I don't think you can change (or adjust) the regulator on that.

I'm gonna suggest that you find a DIFFERENT valve.
I haven't done this stuff in years but I bet a TS-11 will fit & work...
along with a separate gas pressure regulator.




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Converting a valve-ts11.jpg  

Last edited by TarheelTerp; 01-03-2012 at 07:41 PM.
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Old 01-03-2012, 07:57 PM   #6
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Converting a valve


I thought I have a standing pilot. The pilot will stay on all the time I think. Thats why there is an on off valve on the line leaving the main valve to the pilot. Now I was looking online and found something. The screw in the picture near the 3.5" stamped. If I take out the screw that is where the spring and regulator is. Is this correct? I never opened the one on the old valve. If I put that in the new valve how do I set and measure for the 10". What type of gauge will I need?
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Old 01-03-2012, 08:11 PM   #7
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Converting a valve


Quote:
Originally Posted by joebudd View Post
I thought I have a standing pilot. The pilot will stay on all the time I think. Thats why there is an on off valve on the line leaving the main valve to the pilot. Now I was looking online and found something. The screw in the picture near the 3.5" stamped. If I take out the screw that is where the spring and regulator is. Is this correct? I never opened the one on the old valve. If I put that in the new valve how do I set and measure for the 10". What type of gauge will I need?
Will a Honeywell VR8300A3500 fit in the space that you have to work with....?
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Old 01-03-2012, 08:34 PM   #8
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Converting a valve


Maybe. I would need to measure the area. It is going in a wall heater for the garage. Little use. There is what might be a replacement for older valves by it is around $200 plus.
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Old 01-03-2012, 08:37 PM   #9
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Converting a valve


Is Essex The company still around?
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Old 01-14-2012, 02:39 PM   #10
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Converting a valve


OK Heres the deal. I bought the essex natural gas valve. Looks like the one I have. The new valve has in and out on opposite sides the old valve was 90 degrees. Not a big deal, put a 90 in and had to reduced it to 3/8. Took the old spring and put it in the new valve, and made a manometer. Put the burner unit on the bench rigged up the gas and fired it off. Unit was very close to 10" w/c. Adjusted it and shut it down. Put the burner in the heater housing and pipe the gas. I used 1/2 black iron. I put my union and my trap and gas valve in, hook up the gas. I lite the pilot, turned up the thermostat and waited. 30 seconds later the burner lights. A couple of minutes later the fan kicks in. Not too bad for never doing this before. My advice, always read about what you are planning on doing. Ask questions, and read some more.

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