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Repairing 3 way valve
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newshound
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Repairing 3 way valve
On 22/04/2019 19:21,
wrote:
Honeywell 3 way valve for plan Y. It's shaft was very stiff, I've freed it by waggling but need to disassemble & replace the rubber seal otherwise the problem will just recur.
This is the plate carrying the shaft & ball:
http://i63.tinypic.com/drco5l.jpg
Have removed circlip from topside of shaft, and assumed the shaft would then drop out the bottom. But no joy, even hammering down on it fairly firmly it won't budge. The bottom end of the shaft is peened to the arm carrying the ball, so I'm asking if there's a way to remove it but suspect the worst. I assume it must be disassemblable somehow, but I'm not seeing how.
If it proves impossible, I'm thinking of trying forcing grease into the thing from the top using a grease gun & flexible tube clamped on. Is there any particular grease that would stay in place longest? It's under 2 storeys of water pressure, and runs primary circuit hot water upto 80 degrees C.
Cheers
NT
I don't think grease will work. I imagine the problem is something like
limescale or magnetite taking up all the clearance around the spindle on
the "water" side.
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