A gate valve can be an isolation valve. An isolation valve is a term used to describe the purpose of the valve. A gate velve is a type of valve
a gate valve is a one way totally open or closed valve, a control valve is a variable valve.
A ball cock is self closing a gate is manually turned on and off
A check valve allows for flow in one direction and a gate valve is used for positive shut off and a globe valve is used for throttling
A Knife Gate Valve is used to slice through sludge /sewerage and a gate is used fro normal positive shut off If you want to find the photo of Knife Gate Valve,you can enter to the link:http://www.kolinkcn.com/
A knife gate is normally used on a sewerage system to cut though waste under the gate seat to allow for positive shut off
The Gate valve is the stop valve & the Globe valve is the fluid Regulating valve.
The difference is that a sluice gate is made out of cast iron while a slide gate isn't.
a gate valve is a one way totally open or closed valve, a control valve is a variable valve.
A ball cock is self closing a gate is manually turned on and off
A check valve allows for flow in one direction and a gate valve is used for positive shut off and a globe valve is used for throttling
A check valve allows for flow in one direction and a gate valve is used for positive shut off and a globe valve is used for throttling
A Knife Gate Valve is used to slice through sludge /sewerage and a gate is used fro normal positive shut off If you want to find the photo of Knife Gate Valve,you can enter to the link:http://www.kolinkcn.com/
A knife gate is normally used on a sewerage system to cut though waste under the gate seat to allow for positive shut off
In globe valve we just handle small amount and small pressure of fluid while in gate valve we can handle a large amount and large pressure of fluid.
Gate valve shuts straight down to close off the line. A ball valve has a hole through it and is rotated to close the line. Gate is used for liquid and ball is for gas but can also be used for liquid.
The external housing (shell) of gate and globe valves are similar, but the globe valve is designed to serve as a regulating valve, meaning that it can adjust the flow by the percentage of the opening. However, the gate valve is not designed to regulate flow, but to stop the flow. A gate valve should always be either fully open or fully closed. The main difference is in the form of the inner elements and the form of the flow inside the valves. In addition, the gate valve may have a rising or non rising stem while the globe valve is typically a rising stem design. The direction of flow through a gate valve is not important. However a globe valve has a flow direction indicated on the outer shell (body) which indicates the direction of flow from beneath the seat. In a gate valve, the closure element is a plate or disk which travels parallel to the plane of the seat. The gate in a dam is a well known example. In a globe valve, the closure element is usually called a "poppet", and it travels perpendicular to the plane of the seat. There are specific advantages and disadvantages to each type depending on the application. The application for a globe valve is regulating flow. It is not well suited for full stop isolation. The gate valve is an isolation valve and not designed to regulate flow.
An air valve is a spring loaded plastic valve for ventilation. A gate valve is an old fashioned type of water valve where turning a handle lowers a blocking gate over the water inlet. Any sensible plumber now uses ball valves instead.