honeywell valves

[peterpan]

after removing the powered head of a honeywell 3 port valve and exposing the spindle how far should you be able to turn the spindle? ie should you be able to spin it completely around.all answers welcome thanks.

 

[AlanE]

Yes and easily.

 

[Rob]

Not exactly. Yes idealy you should be able to turn it with your fingers (not need grips) however not 360 degrees. It will only turn a very short distance due to the ball inside.

 

[peterpan]

so maybe 180 degrees,i'm trying to find out if the valve needs replacing or just the head,the spindle only moves slighty and i think it should move more.

 

[Rob]

More like 90.

Might be easier just telling us the problem.

 

[nickso]

honeywell valves only turn 90 degrees or so dont they? most of the rubber ball types do.

edit....too late

 

[peterpan]

sisters never been able to get hot water or heating only both by turning the room stat up.asked to go and look last night because now she can't get either.bolier fires up for a short while but not enough to heat the cylinder.suspected the honeywell valve is faulty because of only originally being able to get both.

 

[spacethegas]

if you can just move it a couple of mm each way the chances are that the internal ball has expanded & is restricting the water flow.
i understand there is a service kit available although i've never had cause to buy one.

 

[D_Hailsham]

how far should you be able to turn the spindle? ie should you be able to spin it completely

Yes and easily.

More like 90.

honeywell valves only turn 90 degrees or so dont they? most of the rubber ball types do.

Honeywell's leaflet How a Mid position Valve Works states: The valve spindle swings the diverting ball on a very small range of movement, approx 10-15 degrees