Split wedge for gate valve
Split wedge for gate valve
(OP)
my clint requires gate valve with split wedge, but i could not find any reputed manufacturer manufacturering plit wedge, they all are manufacturing flexible wedge. Can any one guide me whether any reputed manufacturer is manufacturing split wedge.
RE: Split wedge for gate valve
Talk to the vendors.
RE: Split wedge for gate valve
The flexible wedge type is just that- flexible. By the addition of a groove or slot around its periphery, the flexible disc can adapt to temperature changes and adverse piping stresses without binding. The flexible design also is a little easier to manufacture, in that minor imperfections in the seating surface angles can be compensated for by the disc's flexibility. The "flex-wedge" design is by far the most common type seen on commodity gate valves used in industrial applications.
The split wedge type consists of a two-piece design with mating surfaces on the back side of each disc half. These mating surfaces allow the downward stem thrust to be uniformly transferred to the disc faces and onto the seats. This flexible design also provides protection against jamming due to thermal expansion. A disadvantage to the split design is that in "dirty" services, residue or debris can cake in between the disc halves, causing the valve to improperly seat or even jam. Split wedge designs are commonly found on stainless steel and high alloy valves, as well as many small bronze valves.
My focus: Alloy Valves Duplex Valves Monel Valves Inconel Valves Titanium Valves Hastelloy Valves
RE: Split wedge for gate valve
Many thanks for your advise. Do you know if they are manufacturing valves with split wedge. Do you know if flexible wedge can be used in place of split wedge. Do you know if flexible wedge is better than split wedge. Do you know if any manufacurer is manufacturing valves with split wedge
RE: Split wedge for gate valve
RE: Split wedge for gate valve
RE: Split wedge for gate valve
Flex Wedge offers thermal compensation almost as well as split wedge, and most manufactures make their gates with it. (I know my company provided plenty for steam service/cyclical thermal cycle etc)
RE: Split wedge for gate valve
You can try the below manufacturers that they have for split wedge manufacturers:
http://www.remosa-valves.com
http://www.ailvalves.com
http://www.lntvalves.com
http://www.ampo.es