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extropic
Correct Orientation of a Ball Valve?

When installing a ball valve, should the handle of the open valve be over the "supply" side pipe or over the down stream pipe? I presume there's a convention (accepted standard) and hope someone can tell me what it is.
Regards.

A. Spruce
Re: Correct Orientation of a Ball Valve?

With the handle inline with the pipe, the valve should be in the "on" position. When the handle is at a right angle to the pipe it should be in the "off" position. This is how the valve should have been set up from the manufacturer, if this is not the case with your valve, then it's likely been tampered with and should be replace with a new valve.

Bay Area..Ca
Re: Correct Orientation of a Ball Valve?

the open position can face either the supply side or down stream direction but handle should have enough room to be fully on or off.

MSSP
Re: Correct Orientation of a Ball Valve?

There is no direction of a ball valve. i usually postion it so when it is off the words are right side up and can be read.

Fencepost
Re: Correct Orientation of a Ball Valve?

Spruce, you misread the question. The question was whether or not a ball valve has an "inlet" and an "outlet" side like a globe valve or angle stop has. The answer, as others have posted, is that it can be installed in either direction.

That said, I kind of like to orient it so the handle is pointing in the direction of flow, unless clearance is an issue.

Hey, we could start another debate, just like whether it's better to put the ground pin up or down on a receptacle outlet!

jdwhiteii
Re: Correct Orientation of a Ball Valve?

I have to replace a 70-year-old globe valve that is now completely useless (i.e., don't close) in the water inlet to the house. Also, another one on a line to an outside outlet. It is copper pipe. I am installing ball valves and questioned the orientation, hence, reading this string. The posts have been most educational.

My take: Both ball valves I purchased (3/4 inch and 1/2 inch) have a "relief" port (my description) to the side, which has a small, threaded, knob to close the port. It is on the side of the valve that the handle points to when in the open position. Looking at the current globe valves, all of which have the same relief port (70 years ago!), the port is on the discharge side of the globe valve. My surmise is that, after closing the inlet source, this relief valve allows pressure relief and water draining to do maintenance downstream.

So, I am going to install the globe valves with the relief port to the downstream side, which also coincides with the orientation of the handle (downstream) when in the open position.

ed21
Re: Correct Orientation of a Ball Valve?

The ground pin goes down. No reason. That's just the way it's usually done in my neck of the woods ;)

JLMCDANIEL
Re: Correct Orientation of a Ball Valve?
jdwhiteii wrote:

I have to replace a 70-year-old globe valve that is now completely useless (i.e., don't close) in the water inlet to the house. Also, another one on a line to an outside outlet. It is copper pipe. I am installing ball valves and questioned the orientation, hence, reading this string. The posts have been most educational.

My take: Both ball valves I purchased (3/4 inch and 1/2 inch) have a "relief" port (my description) to the side, which has a small, threaded, knob to close the port. It is on the side of the valve that the handle points to when in the open position. Looking at the current globe valves, all of which have the same relief port (70 years ago!), the port is on the discharge side of the globe valve. My surmise is that, after closing the inlet source, this relief valve allows pressure relief and water draining to do maintenance downstream.

So, I am going to install the globe valves with the relief port to the downstream side, which also coincides with the orientation of the handle (downstream) when in the open position.

You are correct, any valve with a pressure relief should be installed so the relief is on the output side.

Jack

jdwhiteii
Re: Correct Orientation of a Ball Valve?

Jack, thanks for the confirmation ... :-) ...

jdwhiteii
Re: Correct Orientation of a Ball Valve?

Fencepost, ed21,

The outlet ground pin installed in the down position has another advantage besides convention ... all the "flat" cord plugs (my description) that I have seen (e.g., on my window AC, and several power strips) the ground pin is so oriented that it allows the cord to extend down, not forced to go up and loop down. I have made sure all my outlets have the ground pin down.

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