How Gate Valves Work

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This 3D animated video explains how a gate valve works. We also look at the operating characteristics of the gate valve, its advantages, disadvantages, and its applications.

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▶️Gate valves are linear motion valves. They are multi-turn type valves as the actuator requires numerous turns to change from the fully open to fully closed position. Linear motion valves are slower to operate than rotary motion valves, but this is beneficial in some instances because this trait helps avoid water hammer when opening the valve.

Gate valves are usually installed with in-line piping that requires very little obstruction to flow. When the gate valve is fully open, there is a very low pressure drop across the valve.

The gate valve bonnet allows easy access to the internal valve components. The internal valve components are referred to as the ‘trim’.

Gate valve discs are either of the inclined or parallel design. Three inclined disc designs are used, these are the solid, split and flexible wedge designs.

Gate valve seats are machined directly into the body, or, seat rings are used. Seat rings can be attached to the valve using a screw thread.

Gate valves utilise either a rising or non-rising stem design.

In service temperatures are between approximately -20 to 60 °C. In service pressure can be up to 16 bar. The maximum flow through the valve is between 5-20 metres per second depending upon if the flowing medium is a liquid or gas.

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Want to continue learning about engineering with videos like this one? Then visit:

Want to teach/instruct with the 3D models shown in this video? Then visit:

savree-d
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I know nothing about valves, and I could follow this really easily. Thank you for the informative video!

kaamil-inaamnaicker
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One of the best explanations available online..thank you savree team..looking forward for more detailed explanations of different valve's

raaheraza
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Brilliant . this is so useful for people who want to understand valve better . Especially this is perfect for juniors and in some cases seniors alike !!!

ManuB
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depiction looks very interesting and makes the concept understandable very utterly

ouzytheoriginal
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Great video, it's helping me get through my architectural engineering classes!

Scar-letting
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Nicely explained working of gate valve with the help of animation, thanks

gajananramchandrameshram
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Love from India... helped me prepare for my momentum transfer exams

annaamalabenny
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Thanks very much, am a teacher, this will help me explain how the gate valve works

hlalelemohale
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This video hepled me much for doing my practical exams👍🏾😁

janasvaz
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Thanks a lot for the helpful explanation!

majedaljaber
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Very nice and detailed explanation of gate valve operation.

pipingengineering
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really easy to watch and very clear ! Keep up the great work

chrisjones
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High quality content, congratulation!

zejean
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For the rising stem. When it’s fully closed is the stem flush with the handle or does some thread stick out?

flyside
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Thanks for this my dishwasher has been breaking this is very helpful.

novathefirst
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I hope you will show us how the purifier works.

cristallagrosa
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Thakyou for the course about gate valve. Please if you can simulate the grease with valves when are diffictive such as passing, stuck, loosing and leaking.
Thank you very much

talatajjawi
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a very informative video clip. thanks a lot!

bycljlm
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it's very amazing and informative video, is it from 3d drawing? what the software to draw like that?

Inchacha