OkiePC
Lifetime Supporting Member
This is for a tank fill application that has a PVC ball valve at present. The operators often open the valve and forget about it, overfilling a tank. We are tasked automating this.
I have it all worked out except for choosing a valve.
The problem is that the 100psi water line is 1" PVC, and subject to severe water hammer during both opening and closing.
I have used the slow closing ASCO red hat valves before, but I think they open quickly. We want it simple and reliable but need to open and close slowly. About ten seconds in each direction would be slow enough if not adjustable.
If I use a motorized ball valve, that is overkill for this on/off operation and then there's the concern about what happens if power is lost.
I have searched quite a bit and found a few potential candidates, but they're all either cheap looking, only speed controlled in one direction, or ridiculously overkill motorized valves with analog control.
I know some of you guys probably can direct me to the exact product I need to locate.
Paul
I have it all worked out except for choosing a valve.
The problem is that the 100psi water line is 1" PVC, and subject to severe water hammer during both opening and closing.
I have used the slow closing ASCO red hat valves before, but I think they open quickly. We want it simple and reliable but need to open and close slowly. About ten seconds in each direction would be slow enough if not adjustable.
If I use a motorized ball valve, that is overkill for this on/off operation and then there's the concern about what happens if power is lost.
I have searched quite a bit and found a few potential candidates, but they're all either cheap looking, only speed controlled in one direction, or ridiculously overkill motorized valves with analog control.
I know some of you guys probably can direct me to the exact product I need to locate.
Paul