A wedge gate valve is a type of valve that has the capability of sealing in a fluid flow system. It has been developed with the aim of providing maximum resistance to wear and tear. This valve can be installed in a wide range of applications, such as sewage, water, and other working mediums. The valve can also be used in low-temperature and high-pressure environments.
The main parts of these valves are the bonnet, wedge halves, seat, and stem. The wedge halves are coupled together with springs. These springs boost the load at lower pressures.
There are many different types of wedge gate valves. However, the most common type is the solid wedge type. The valve body is a single piece of metal that is machinated to match the seat. Although the solid wedge type has a tight seal, it is susceptible to leaks.
Wedge gate valves have good manufacturability. However, this type of valve is subject to thermal locking. Therefore, it is not a good choice for harsh applications.
Features of Wedge Gate Valves
Utility
There are several different types of wedge gate valves. These are used in a number of industrial applications. They are especially good for shut-off systems. However, there are also other uses for them. For example, they can be used in the automotive industry.
Materials
The material of the wedge valve is stainless steel or a hard alloy. Some manufacturers use surface coating treatment to enhance the durability of the valve.
Size
Another factor that determines the size of the valve is its maximum operating temperature. When it comes to the internals, the stem is the part that transfers the torque from the handwheel to the gate. Moreover, the bonnet is the component that covers the internal parts. It can be bolted or screwed into the valve.
Applications
Among the other features, the wedge gate valve is suitable for applications in which the fluid is turbulent. It can also be used in a variety of industrial and residential applications.
Design
Aside from its flexibility, the wedge gate design also ensures that the convex surface of the valve does not get damaged during transportation. This feature is particularly helpful for applications involving slurries.
Maintenance
As for maintenance, the wedge gate valve can be repaired easily. However, you should first turn off the fluid source before reassembling the valve. Once the parts are removed, inspect them for damages. If you find any problems, dismantle the valve and repair them.
Types
The most common type is the solid wedge gate valve. This type features unmatched simplicity and excellent strength. However, this valve can lock up because of slight deformation in the body. The flexible wedge gate valve is another type. It is designed to overcome the lockup problem of the solid wedge. With this valve, the wedge is allowed to flex within the body seat. In this way, it is possible to adapt to the changes in load.
XINTAI Valve is an industry leader in producing a wide variety of valves. The Xintai company’s products include control, gate, cryogenic and hydraulic valves. They also offer a full range of related services and ancillary equipment.
Wedge Gate Valve Systems with XINTAI Valve are used in oil and gas fields, the chemical industry, the food and beverage industry, industrial systems, wastewater treatment plants, and in fire protection systems. These valves are made of strong metals that can withstand high pressures. The valves have a wedge-shaped metal piece in their disc that clears the flow path.
