Gate Valves
Gate Valves
(OP)
I would appreciate if someone could supply a source of large diameter gate valves (not knife gate). I only found up to 48" on the internet. I am looking for 72".
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RE: Gate Valves
John Nangle
(630)844-4092
jnangle@henrypratt.com
He works for Henry Pratt Company
Or try their website it looks pretty impressive
www.henrypratt.com
RE: Gate Valves
The largest gate valve I've seen was 48", and those were big, heavy, expensive suckers. They were made by American, and I see on their website, they just go up to 48".
You might double check the specifications under which the valve would be produced, to see if there is a size limitation on it.
RE: Gate Valves
Good luck.
http
RE: Gate Valves
RE: Gate Valves
"AWWA C500-02: Metal-Seated Gate Valves for Water Supply Service
This standard covers iron-body, bronze-mounted, nonrising-stem (NRS) gate valves including tapping gate valves, 3 in. (75 mm) NPS through 48 in. (1200 mm) NPS..."
AWWA C509 just covers up through 20". I think these are the only AWWA valve standards. So while you can get larger valves, they won't be "AWWA" valves.
From a practical standpoint, this is probably the point at which you're moving from a cast-body stock item to a welded-steel custom item.
And do check the prices on other valve styles. On a 10" valve, there's not a lot of difference between a BFV and a gate valve, but the larger the valve, the more the difference. The physical size gets to be an issue as well. A 48" gate valve is about 10' high.
RE: Gate Valves
RE: Gate Valves
good luck
RE: Gate Valves
RE: Gate Valves
Parhaps a plug valve would be possible. Don't know if anyone makes such a large valve but it does have the agvantage of a fully open waterway. If the purpose is to be a shuoff valve, rather than a throttling valve, it would be normally open or completely closed.
good luck
RE: Gate Valves
RE: Gate Valves
CVG: The electical is set up for 900 hp pumps and I'm right on the edge of that. This a plant upgrade so the electrical is existing. I'm afraid any addition head on the system will push me over the line.
RE: Gate Valves
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RE: Gate Valves
http://www.charlesfinchvalve.com/ard.htm