Swing Check Valve Wafer Type Double Disc DN 250 mm

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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 250 mm

Swing Check Valve Wafer Type Double Disc DN 250 mm

Swing Check Valve Wafer Type Double Disc DN 250 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:1+ Tricuspid/Pulmonic valve insufficiency?
well ill expalin in laymans terms to help you understand it says that ventricles are slightly inefficient in pumping blood to the parts of body, you are advised to go to your doctor with your new test results, because health is wealth and prevention is better than cure. it may be due to less amount of oxygen reaching heart it may result in bradychardia and CHF... do see a cardiologist soon
Q:effects of a bypass valve on a car?
bypass valves are for cars with forced induction IEturbocharger,supercharger it allows the air that would normally be expelled into the atmosphere blow off valve and instead putting it back into the intake which helps with less lag in building boost again. If your car is not turboed or supercharged then forget it.
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:Do you need a turbo to use a blow off valve?
look on youtube theres a way but its a very getto way lol. there youtube user name is mightycarmods
Q:can EGR valve make engine run hot, melt pistons?
Yes, very true. It would help if you stated what vehicle it was for. But let's say it's a Ford F-series truck with the 6.0L diesel, highly known for this problem. You can actually purchase an EGR delete which actually bypasses the valve so it won't burn the piston rings (the actual part that burns up). Buying this item only costs a few hundred and will save you thousands in the long run.
Q:will correcting of mild dextroscoliosis will affect existing mitral valve prolapse?
Q:Painting valve cover?
Best if you replace the gasket anytime you remove a valve cover. Looks tacky to have a nice shiny painted valve cover with oil leaking onto the engine. Also, it is important to correctly torque the valve cover fasteners. A common mistake is to crank the fasteners down until they are really tight. This over crushes the gasket and can distort the valve cover which can cause leaks. These fasteners when correctly torqued are not as tight as you might think.
Q:bicuspid aortic valve information?
If your bicuspid aortic valve doesn't leak or is not stenosed, it should not be a significant problem.
Q:How is a pig hearts valve used to replaced ours?
cape.uwaterloo.ca/che100projects/... They also use cow - bovine - for valve replacements.
Q:Kayak-self bailing drain valve?
Self Bailing Kayak

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