Adjust Pressure on Watts Feed Line Valve


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Old 02-02-07, 08:23 PM
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Adjust Pressure on Watts Feed Line Valve

I have a Watts Regulator feed line valve with the quick feed lever leading to my gas fired boiler. (looks like this: http://www.watts.com/pdf/ES-1156F.pdf) I would like to adjust the pressure in the boiler upwards slightly (now at 12-14 psi cold, and water is not getting to the radiators on the third story of my house).

I have searched and found threads stating to loosen the lock nut and tighten the screw one turn. Where do I find this locknut and screw? The lever on the top of the valve is attached to a nut. I can remove that whole lever assembly and the rod it pushes down on when lifted to activate water flow. That exposes a hole leading down into the body of the valve. What do I do next?
 
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Old 02-02-07, 11:14 PM
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Be simple... just lift the top lever until you have th desired pressure.
 
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Old 02-02-07, 11:19 PM
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After removing the handle assembly you loosen the locknut at the bottom of the threaded stem that holds the handle assembly. Then turn the threaded stem clockwise (no more than 1/2 turn at a time) until you reach your desired pressure. If you cannot turn the stem by hand you may remove the pin and use a big screwdriver in the slot on top.

Remember to wait for several minutes after each 1/2 turn to be sure the valve completely reseats. When you are done, tighten the locknut without moving the stem and replace the pin (if removed) and then the handle assembly.
 
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Old 02-03-07, 04:21 AM
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I think your handle assembly is removing the adjusting screw along with it. The handle assembly should be hollow with a female thread, and leave the brass male threaded screw with a slot sticking out of the top of the valve.
 
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Old 02-03-07, 05:20 AM
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Yes, that is exactly what is happening. Sounds like I need to free up the handle assembly from the adjusting screw. Thanks for all the advice.

Now off to replace my expansion tank, as I've discovered that my 12-14 psi cold pressure shoots to 30 psi when hot.
 
 

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