Swing Check Valve Wafer Type Double Disc DN 450 mm

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Product Description:

Products Description of Swing Check Valve

Check valves are used in pipes under pressures between PN1.6~16.0MPa(Class150~2500Lb), working temperatures-196~600, They are used in industries include oil, chemistry, pharmaceutical, fertilizer, and power gene-ration to prevent the backward flux of the media.

The main structure features of Swing Check Valve:

1The products feature a reasonable structure, reliable seal, good performance and nice modeling.
Either soft or hard seal can be selected for the product upon different working conditions.The sealing face is built up with Co-based 
carbide alloy, leaving a better wearability, corrosion and scrap resistance and a longer duration.
Small opening pressure, the disc can be opened fully with a very small pressure differential.
Inside-set bolt-bearing structure reduces leakage and reliable use.
PN≥16.0Mpa (class1500), the middle cavity uses a self-tightening sealing structure to have the sealing performance reinforced along 
with the pressure rise so as to ensure the sealing performance.
Different parts materials and different sizes for flange, butt-welding are available for sensible combination according to different working facts and customers' requirements.

Parameter of Swing Check Valve:

Standard Criteria

 GB customize 

Pressure Rating

 1 Mpa  1.6 Mpa  2.5   Mpa  4 Mpa  6.4 Mpa  10 Mpa  16   Mpa customize 

Valve Size

 50 mm  65 mm  80   mm  100 mm  125 mm  150 mm  200   mm  250 mm 300 mm  350 mm  400   mm  450 mm  500 mm  600 mm customi


 Automatic customize 


 Wafer customize 


 Oil  Steam  Water customize   

Medium Temperature

 -196~600 customize   

Structural style

 Swing double-clack   structure customize 

Application Fields

 Agriculture  Electricity  Medical  Petrochemical customize   

1-Body Material

 CF3  CF8C  CF8  WCB  CF8M  CF3M customize   


 CF3  CF3M  WCB  CF8  CF8M  CF8C customize   


 1Cr13  1Cr18Ni9Ti  0Cr18Ni12Mo2Ti  2Cr13 customize   


 60Si2Mn  1Cr18Ni9Ti  4Cr13  0Cr18Ni12Mo2Ti customize   

Design Standard

 GB/T 12224 customize 

Connection Standard

 GB/T 9113  HG   20592  JB/T 79 customize 

Test Standard

 JB/T 9092-1999 customize 

Face to Face

 GB/T 15188.2-1994 customize 

Images of Swing Check Valve:

Swing Check Valve Wafer Type Double Disc DN  450 mm

Swing Check Valve Wafer Type Double Disc DN  450 mm

Swing Check Valve Wafer Type Double Disc DN  450 mm

FAQ of Swing Check Valve:

Q1:I can’t find the type of steel check valve which I need. what can I do?

The chart above only lists out some common composition of steel check valve parts.We may provide other different parts material composition according to the customer's request or the actual valve working condition.

Q2:Which certification do your products pass?

  Our products are in accordance with ISO 9001ISO 14001API 6AAPI 6DTS CEAPI607/6FA/BS6755.

Q3:How can I place an order?

  The only one thing you should do is to tell us the sepecification about type quantity and  mode of transportation, then we will send you quotation within 24 hours.

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Q:Can I myself fix/replace a hydronic zone control valve?
You would need to isolate the valve from the line, and depressurize the system, and I would think that turning off the heater and letting the temperature fall would probably be necessary if you don't want a relief to lift in the boiler. If you make a mistake here you have a very good chance of being scalded to death, or permanently scarred. Also, you may need to sweat and braise the new valve with a torch, so you had better be sure you know what you are doing and don't burn your house down.
Q:valve covers?
Yep those are the old Mickey Thompson valve covers. He was a great drag racer and tire maker. M/T slicks are one of the most used tires in drag racing today. He was murdered (shot IIRC) around 30 years ago by a hired gunman that his biz partern hired to gun Mickey down
Q:installing shutoff valves for kitchen faucet?
Before you think about cutting the pipe. You should know there is water pressure behind it. You must first shut your water off at the meter. If you opt to take on this endeavor by yourself you have some easy options. There are four types of connections to my knowledge. Soldered is most common and very effective but takes know how. Then there is compression, threaded (which involves sweating a connection on the copper, and then some genius has came out with this new type of connector commonly refered to as shark bite or gator bite (those being the top two leading brands). With these connectors all you must do is put the little plastic insert in the pipe then push the connector on. Ta da! Then your done. I would even bet they make a push on connector with the shut off valve. So to recap. Shut off water, cut the copper and remove burs from pipe, take that piece to the hardware store so you know you have the correct size of pipe fitting. Go home and push it on and then turn your water back on and your done.
Q:Do you need a turbo to use a blow off valve?
Buy a compressed air tank that you can fill at a gas station like you would air up a tire. Mount this tank in your trunk and route air hose from the trunk through the passenger compartment and into the engine compartment. Add a simple valve in your center console or wherever you prefer to turn the air on or off. Drill a hole though your hood and affix the air hose to it. With the air tank filled up, just open the valve and WHOOSH, instant blow off valve sound. You could even fill the hose with confetti for a colorful display. If you wanted to get real fancy you could rig up an electric air compressor under your hood for a continuous air supply. Thats the only way you cant get the release of compressed air to make a blow off valve sound without a turbo. Oh, and while you buying all the supplies for this don't forget to get some fake spinner bling-bling hub caps!! Then you will have the ultimate pimped out ride!
Q:Subs killing EGR Valve?
Thank you for having such a powerful system! I am investing in hearing aids, and you and hundreds of thousands like you will make me rich in my retirement! The sub-woofers are not affecting your EGR valve. It is operated by a vacuum controlled by the ECM to regulate how much exhaust gas is to be fed back into the engine to control the NOx emissions. You want to make sure that there is no recall on the controller, or that it hasn't' failed. Follow the vacuum hose on the EGR valve to where it goes. That is the controller. Do a google search or look on Expert Village for a video.
Q:Idle air control valve cleaned?
There should be a VECI map under your hood that shows you where this valve is located. In a pinch, find a Haynes manual or a Robert Bentley manual that has pictures in it. If you can find the valve, you can clean it yourself with a can of spray Gum-out. While you're at it, clean the throttle body and PCV valve, too. Hopefully, you have had the good sense to have used only genuine Toyota coolant in this car, since Toyota heads require a special coolant formulation to prevent aluminum deterioration. More older Japanese engines are ruined with improper coolant than I can write about here. Sensor damage is caused as well! You might take your car to the Toyota dealer and ask them to clean out the valve for you. Since this is only a 2 minute job, they just might do it for free. If they do, at least offer to tip the technician under the table. Be sure to power wash your entire engine bay before you take the car in. They will LOVE you for this!!!
Q:2003 civic valve adjustment?
Honda valves don't NEED adjustment unless you have serious problems.. If you give it the correct gas...keep the oil changed and don't beat on the engine, it won't need LOTS of work...
Q:Pinch Valve?
a pinch valve has a membrane (or sleeve) inside the valve. When the valve handle is screwed down the membrane is pinch closed. This type of valve is good when the flow needs to be finely controlled. It is also good for slurry (abrasive) flows, as the membrane can be replaced when worn. Gate valves are less effective when the flow must be controlled. They are not used in slurry applications at all, as the gate will be quickly worn away. Knife gate valves can be used in slurry, but are generally totally open or totally closed. The valve must be installed the correct way around, as when closed the weight of the product against the knifegate helps seal the valve. If you have the wrong way around it will tend to leak.
Q:Can you put a blow off valve on a non turbo?
Simply put...No...If you mount it on a cold air intake, you will intake air from where you mount it, and most likely throw off your MAFS and make your car run poorly
Q:Help! Sticky Trumpet Valve?
My valves have had many issues over the past few years. Your problem is either 1. horn is dirty 2. there is a tiny dent (even 1/2mm is enough to stop the valve, happened to me last month). If your horn is dirty, there are plenty of youtube videos on how; it generally involves using water and rising all the gunk out. You could also have too much oil buildup. If there is a dent, don't even try to repair it yourself--it is waaaaay to hard, and you'll ruin the instrument even more. Take it to the store; it should only cost $20-30. I suggest you clean the trumpet first and then try to get it fixed if it is not good.

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