What is the functional difference between gate valve and sluice valve?

Answer 1

a gate valve is a positive shut off valve for liquids and gases and should only be used in the fully open or closed positions, different temperatures and pressures must be considered to insure the correct type of valve to install. a sluice valve is a non-positive shut off valve used for heavier materials such as stone,grain,sand,etc.

Answer 2

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.

Answer 3

operating disc

A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restric­tion is desired.

And a globe valve is a type of valve used for regulatin fluid_dynamics in a piping, consisting of a movable disk-type element and a stationary ring seat in a generally body.

Answer 4

In short, location and design, but their purpose is very similar.

Unless I am very much mistaken, a shut off valve is usually placed nearest the source of the fluid or gas that the pipe will flow. For example, a natural gas shut off valve is placed outside the building at the spot where the gas enters the house. This way, utility workers, firefighters, or anyone who needs to can shut the valve and prevent gas from flowing into the house. These are designed to require a simple handle to be turned.

A gate valve is typically placed within the system (i.e. near the kitchen of a restaurant or leading to a seldom used section of a factory). These allow only part of the system to be shut down, so gas does not get wasted by flowing to places it does not need to go (in such a way that the remainder of the factory can stay operable), or to section off a leak (again, without affecting the rest of the system).

Answer 5

A knife gate is normally used on a sewerage system to cut though waste under the gate seat to allow for positive shut off

Answer 6

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.

Answer 7

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