Re: Confused on what controle valve I need
Posted: Mon Feb 25, 2013 3:00 pm
If you can buy two single open center lever control valves cheaper than one double valve, I would go with two. You can attach them together with a "close" NPT nipple. Just connect the "out" on the first to the "in" port of the second. The two bodies will be so close together that you cannot see between them, making them appear as one. Then connect the line from the pump to "in" port of the first valve and continue with the line from the "out" port of the second valve. No deadhead here. The fluid is continually pumping with no stopping.
I think that I am right about this, even though it has been around 40 years since I hooked up valves this way.
I think that I am right about this, even though it has been around 40 years since I hooked up valves this way.