Stop cocks on heating system pump

[bushmins]

There is a stop cock on the inflo and outflow side of the pump.

Are both of these anti clockwise to open them?

 

[Watchmaker]

If they have a handwheel on the spindle, they are likely to be "gate valves" and, yes, normally, the operation would be anticlockwise to open them. I assume that they are not "ball valves", with a lever on the spindle which, with the handle lying along the line of the pipework, is in the open position and with the handle across the pipe, the closed position.

 

[bushmins]

EDIT : Ignore this ive started a new thread as im talking about something else now.


So now i have the pump off, its definatally spinning and there is a small amount of suction and blowing. How powerful should the pump be?
It not like its pulling my finger off or anything and the blow on it is like someone was blowing in your face.

 

[Watchmaker]

"How powerful should the pump be? "
That sounds about right. I sometimes think that it is wrong to even call it a pump. A rotary,or piston type of pump "positively" displaces the volume of liquid which is in it's chamber or bore. The CH type of "pump" is really a circulating device which, usually quite gently, assists nature in making hot water rise (as it is lighter) and cold water to fall.

 

[muggles]

"How powerful should the pump be? "
That sounds about right. I sometimes think that it is wrong to even call it a pump. A rotary,or piston type of pump "positively" displaces the volume of liquid which is in it's chamber or bore. The CH type of "pump" is really a circulating device which, usually quite gently, assists nature in making hot water rise (as it is lighter) and cold water to fall.

Well technically it is wrong to call it a pump, it's actually called a circulator, but people will use the wrong word for this in the same way that they say "tank" when they mean "cylinder" or "cistern", "sink" when they mean "basin", or "pressure" when they mean "flow"