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작성자워너비 조회 21회 작성일 2021-06-11 08:21:07 댓글 0

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Swing Check Valve

Swing check valve

Welco valve company provides swing check valves with bolted cover or pressure seal cover structure. The basic design specifications are manufactured in accordance with BS 1868, API 6D or other standards as per client’s requirement.

The main structure features:
1. Seat: the seat can be welded, threaded or integral process on the body.

For more information, please visit our website www.welcovalve.com or contact us info@welcovalve.com.

How Swing Check Valves Work

This 3D animated video explains how a swing check valve works. We look at all the main components of the swing check valve as well as how it operates. The 3D animation shows the movement of the check valve disc as it moves from the open to closed position; saVRee’s cross section feature is used to highlight areas of interest and individual components.

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Ultimate Valve Playlist with detailed video tutorials of each valve type!

https://www.youtube.com/playlist?list=PLjoH8XiKuSWlZA8IMStMGEbtMHx7WrU5s

Or watch each video separately!

Valve Construction and Components Explained
https://www.youtube.com/watch?v=naXxsXJzLvg

How Globe Valves Work
https://www.youtube.com/watch?v=GSEIpwf5FBI

How Ball Valves Work
https://www.youtube.com/watch?v=RvD1R8Tlr9M

How Gate Valves Work
https://www.youtube.com/watch?v=C5ZMLWujKGs

How Butterfly Valves Work
https://www.youtube.com/watch?v=jZgOb55J8Eg

How Diaphragm Valves Work
https://www.youtube.com/watch?v=dxelSWY6bhg

How Plug Valves Work
https://www.youtube.com/watch?v=WwrWKBydxeM

How Pinch Valves Work
https://www.youtube.com/watch?v=v1BE4wtUOfw

How Pneumatic Valves Work
https://www.youtube.com/watch?v=fwCmcD8p2Kw

How Swing Check Valves Work
https://www.youtube.com/watch?v=d9e9rQmyR0s

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FREE Introduction to Valves App!

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https://play.google.com/store/apps/details?id=com.trafol.valves

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https://itunes.apple.com/us/app/process-valves/id1439609788

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The swing check valve is one of the most common check valve designs employed today, along with the tilting disc, butterfly, ball and lift check valve designs.

The valve benefits from an almost unobstructed flow path and is often used in series with gate valves which possess similar flow characteristics.

Swing check valves open and close due to the pressure differential on the inlet and outlet sides of the valve. The disc can be installed straight or at an angle (tilted disc).

We discuss each of the main components and their individual functions. The components discussed in the video are the:
Disc
Seat
Body
Flange
Bonnet
Hinge

This video lesson is taken from the saVRee 3D technical Encyclopedia and is part of our Introduction to Valves course:

https://savree.com/en/3d-model-library/

https://savree.com/en/list-of-savree-courses/

Want to use this 3D model in your training course or lesson? Simply join saVRee!

Access all courses and over 250 interactive 3D models for only €14.99 a month.

If you need a custom 3D model for your interactive 3D presentation or marketing video, please visit:

https://savree.com/en/custom-3d-model/

If you need a custom 3D animation for your interactive 3D presentation or marketing video, please visit:

https://savree.com/en/custom-3d-animation/

Need a custom product configurator similar to that shown in the video? Get in touch!

https://savree.com/en/contact


#saVRee #Valve #IndustrialEngineering
Stephen L : Nice animation. Thanks.
GOERGE MENSAH : very intuitive and useful for self studies
Ben YAN : Is this a API 6D CHECK OR BS1868 CHECK VALVE SHOW IN THE VIDEO? I GUESS ITS API 6D.
DO YOU EVER SEEN THE DISC GOT STUCK IN THE INSIDE OF THE VALVE , CAN NOT BE CLOSED?
Mircea Bulboaca : Great videos. Thank you very much. Wish you the best!
prakash yadav : Nicely explained, can you plz also explain about positioners

What is a swing check valve

Today Professor Jim talks about check valves. Hello class and welcome to another addition of Industrial Valco University, today we are going to talk about the Swing Check Valve...The main reason for the check valve is to prevent back flow.
: Preventing back flow means that water or the media can only flow in 1 direction.
the swing check is literally found in every industry where a pump is located… thus if your heavy in the plumbing world, you will want to be familiar with this valve.
: The swing check is the one of the most basic designs of valves with only 2 or 3 moving part. The swing check valve has a disk that acts as a trap door over the seat. The disc is anchored to a hinge pin with a hanger arm so that the hanger disk assembly pivots around the pin. The hinge lets the disk and holder swing away from the seat.
Turbulence and pressure drop in the Valve are very low; however, special care has to be taken on how the valve is installed
VIDEO When water flows through a check valve. It pushes against the disk. This flow pushes the disk away from the seat and up against the top of the valve. Swing checks can only be installed with the flow horizontal or vertical upward flow only. When properly installed, the valve will close automatically. This is a result of the weight of the disc closing the valve. When water tries to flow backward gravity pulls the disk down around the seat. The pressure of the backwards flow helps provide a firmer seal against the seat.
To work properly the valve must be installed properly so the disk naturally falls against the seat. How is this done….. aha!
Every valve will have an arrow that indicates the direction of the flow through the valve.
also , They should never be installed on their sides or upside down. Which leads us to a special check valve edition of “did you know”
Did you know:__ did you know that the song from former __NWA Rapper IceVube’s first solo album, Check yo self contrary to popular opinion, is not actually about check valves at all. It is actually about making sure you call out an individual who made a grave mistake, so they canthink about what they have done and atone for their lack of judgement.
So an example of this would be, say you were to buy a Swing Check from anyone but Industrial Valco, I would then say, you should probably check yo self before you wreck yourself…. OK lets talk about the advantages and disadvantages of the check valve.


Advantages:
• Low pressure drop
• Only 3 moving parts
• Simple to maintain and repair
Disadvantages
• Does not seal at low pressures
• Requires a backflow to close valve quickly
• Most valves are not pigable
• Susceptible to Water Hammer

lets talk quickly about what water hammer is: In viscous (VISCUS) or slow moving liquid or fluids the valve may close slowly.
As a result, a back flow may occur. The back flow will aid the valve in closing quicker; however, this can lead to a water hammer situation. Water hammer (or, more generally, fluid hammer) is a pressure surge or wave resulting when a fluid in motion is forced to stop or change direction suddenly Water hammer commonly occurs when a valve is closed suddenly.
This pressure wave can cause major problems, from noise and vibration to pipe collapse. Ok lets review what we learned today.
The swing check is the one of the most basic designs of valves with only 2 or 3 moving parts. When water flows through a check valve. It pushes against the disk. This flow pushes the disk away from the seat and up against the top of the valve. When properly installed, the valve will close automatically. This is a result of the weight of the disc closing the valve. When water tries to flow backward gravity pulls the disk down around the seat. The pressure of the backwards flow helps provide a firmer seal against the seat.

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