Gate Valve Wedge Types

These are the socket and ball design valves.

Gate valve wedge types.

Gate valves are usually divided into two types. Solid design also minimized the vibration and chatter. The gate faces can be parallel but are most commonly wedge shaped in order to be able to apply pressure on the sealing surface. Wedge gate valves are named because the two sealing surfaces resemble wedges in the body.

One of the most significant characteristics of this type of valves is its. Wedge type gate valves have a disc that is in the shape of a wedge that seats against two inclined seats. 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. Solid wedges are used in high flow or turbulent applications such as steam service.

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. A gate valve is a valve that opens by lifting a barrier gate out of the path of the fluid gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. It is a linear motion valve used to start or stop fluid flow. The mechanical characteristics make the scv wedge gate valve are ideal for bi directional total flow system open shut off applications with minimal.

Split wedge gate valves are self adjusting and self aligning gate valves. In such a design a wedge slides cross a general passageway in order to control fluid flow like a sliding gate hence the name. Gate globe check valves gate valves gate valves serve as efficient on off valves with flow in either direction. A gate valve is the most common type of valve used in any process plant.

The solid or single wedge gate valve is the most widely used and the lowest cost used type in the process industry. Solid wedge gate valve can be installed in any position suitable for almost all fluids and practical for turbulent flow services. 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 purpose of the wedge shape is to introduce a high supplementary seating load.

Description of wedge gate valve. Zeco wedge gate valve is one of the gate valve types. A gate valve can be defined as a type of valve that used a gate or wedge type disk and the disk moves perpendicular to flow to start or stop the fluid flow in piping. Split wedge gate valve.

Shut off is obtained by the free floating seat or disk gate allow the upstream pressure to seal the seat and disk against any unwanted seat leakage. 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.