Split Wedge Type Gate Valve

Split wedge gate valves are self adjusting and self aligning gate valves.

Split wedge type gate valve.

Split wedge or flexible wedge type gate valves are expected to perform better than solid wedge gate valves when thermal binding is a concern. The disk is free to adjust itself to the seating surface. Split wedge disk consists of two solid pieces and holds together with the help of a special mechanism. The split disk can be in a wedge shape or a parallel disk type.

These are self adjusting and self aligning to both seating surfaces. Split wedge gate valves as shown in below figure are of the ball and socket design. Ranging of the gate valves is usually made by the type of wedge used. The disc is free to adjust itself to the seating surface if one half of the disc is slightly out of alignment due to some foreign matter lodged between the disc and the seat ring.

You can see the same in images. The disk is free to adjust itself to the seating surface if one half of the disk is slightly out of alignment because of foreign matter lodged between the disk half and the seat ring. Gate valves are available with different disks or wedges. Zeco wedge gate valve is one of the gate valve types.

These are the socket and ball design valves. Split wedge gate valve. Wedge gate valves are named because the two sealing surfaces resemble wedges in the body. In general the two wedge gate valve sealing surface and the angle of the vertical center line of 2 52 3 30 5 8 and so on.

In case one half of the disk is out of alignment. Split wedge gate valves have a compact design with body guided two piece gates that provide reliable operation and sealing. Description of wedge gate valve. Split wedge or parallel disks gate valve.

Pressure binding sometimes in high temperature applications the flow medium such as water or steam is trapped in the valve bonnet area when the valve is closed for system shutdown. The valve trim consists of the stem the gate the disc or wedge and the seat rings.