Plug Valve Mechanism

Contact a local valves distributor directly and discuss the requirements.

Uuuummmm ... no?!?

What you're describing is probably a gate valve; it's certainly not a plug valve.

Plug valves are rotary ones where a cylindrical section (perhaps tapered at top or bottom) has a channel that passes through it. When it's closed, the channel is perpendicular to the fluid flow; when it's open, the channel is in line with it.

Inother words, plug valves are like ball valves except that instead of having a rotating sphere that modulates or shuts off flow, a cylinder is used instead.

For the life of me, I used to have a lot of trouble remembering this. To any normal person,a plug valve ought to plug, that is fit into a socket or something like a cork fits into a bottle neck. But for some reason, the Namers Of Old decided to call what I might have called 'cylinder valves' plug valves.

Anyway, what you're describing sounds like a globe valve or a gate valve. For safety, I'd go with a 'real' plug valve or a gate valve to shut off the flow. The plug valve will be rotary, the gate valve will have an up-down motion. As for a lever or a handle: there aren't any for plug valves, but there may be some for gate valves.

Sorry for not being more helpful, but at least we've cleared up this valve-naming mess.

Cheers! DZ

What does a fast opening gate or globe valve look like? All the ones I've dealt with are slow to fully open and fully close.

Thanks,

Gary

Please immediately contact M/s Larsen & Toubro Ltd., AUDCO INDIA LTD. at Chennai, India and obtain an OFFER of suitable Plug valve for sulfuric acid, specifying the size. It has been years since I left that company, but I am aware of their continuing manufacture of these famous valves. You must ensure that appropriate lubricant is always filled into the valve stem to enable smooth manual operation via a tubular steel star head wrench or gear drive unit for both manual and motorized/remote control actuation for "Open"/"Close" operation.

Hope this is of use to you!!

D.Ramakrishna Naidu

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