Valve interlocking
Valve interlocking
(OP)
Good morning all,
I'm trying to mechanically interlock three small 3/8" valves so that only one of the three is available at any one time. This is three gas supplies to a piece of small equipment, which are subsequently tied together. The interlock is to prevent backflow from one to the other.
Searching eng-tips has shown up Castell and similar interlocks and interlocking via AOVs and the DCS. Given the line size, both of these seem rather over the top. I'm thinking along the lines of discs with cutouts, but can not come up with a layout that I can convince myself will work. Any other suggestions from anyone?
Thanks,
Matthew
I'm trying to mechanically interlock three small 3/8" valves so that only one of the three is available at any one time. This is three gas supplies to a piece of small equipment, which are subsequently tied together. The interlock is to prevent backflow from one to the other.
Searching eng-tips has shown up Castell and similar interlocks and interlocking via AOVs and the DCS. Given the line size, both of these seem rather over the top. I'm thinking along the lines of discs with cutouts, but can not come up with a layout that I can convince myself will work. Any other suggestions from anyone?
Thanks,
Matthew





RE: Valve interlocking
RE: Valve interlocking
ht
These are actuated by air.
But max port size is 1/4"
Best regards
Morten
RE: Valve interlocking
http://www.conantcontrols.com/
RE: Valve interlocking
Thank you all for these. I clearly need to do a bit more digging to get a system that's happy with 230 bar, but I've got a few more ideas to work with.
RE: Valve interlocking
RE: Valve interlocking