Gate Valve Types

Solid hollow split and flexible wedge.

Gate valve types.

The parallel gate valves use a flat gate between two parallel seats and a popular type is the knife gate valve designed with a sharp edge on the bottom of the gate. The gate faces can be parallel but are most commonly wedge shaped in order to be able to apply pressure on the sealing surface. A gate valve also known as a sluice 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. A gate valve is the most common type of valve used in any process plant.

In service these valves are either in a fully open or fully closed position. Gate valves are used in almost all fluid services such as air fuel gas feedwater steam lube oil hydrocarbon and all most. It is a linear motion valve used to start or stop fluid flow. A third type of gate valve called conduit valve is shown in fig.

Their mechanism usually involves a round knob that when turned lowers or raises an internal gate or wedge to control the water flow rate. In service these valves are either in a fully open or fully closed position. Two basic types of gate valves are the manufactured wedge type and the double disc type and there are several variations within each of these types. When the gate valve is fully open the disk of a gate valve is completely removed from the flow.

The familiar outdoor spigot for a garden hose offers an example of a gate valve. There are four types of wedges. The mechanical device that controls the flow and pressure within a system or process is called valves and there are many types of valves such as gate valve globe valve ball valve etc. Ball valve for on off control without pressure drop ideal for quick shut off since a 90 turn completely shuts off compared to multiple 360 turns for other manual valves.

Gate valves are usually divided into two types. There are many types of 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. The parallel gate valve uses a flat disc gate between two parallel seats upstream and downstream.

Gate valve is a linear motion valve used to start and stop the flow of fluid. It is a linear motion valve used to start or stop fluid flow. It s a full opening closing valve. They are essential components of a piping system that conveys liquids gases and vapors etc.

Gate valves also called sluice valves are more likely to be found in older houses. A gate valve is the most common type of valve in any process plant. Valves can be categorized into the following types based on their operating mechanism.