Swing Check Valve Wafer Type Double Disc DN 350 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 350 mm

Swing Check Valve Wafer Type Double Disc DN 350 mm

Swing Check Valve Wafer Type Double Disc DN 350 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:bleed valve 97 taurus?
drain valve is under the plastic cover that shields the are between the front bumper cover and the frame... You didn't say what motor in the taurus but most had a 3.0 2 valve motor and there is no bleed valve... refill the coolant, leave the radiator cap off the bottle, start the car, turn the heater on and fan on high with the air direction pointing to vents (usually first one on the left after the off switch) run the engine till the heater gets hot (reving at 2,000 rpm does help)... when it gets hot, it's bled out... That's how most Fords and this taurus for sure is done
Q:Help, my water heater pressure valve is leaking?
Same thing happened to me.. The valve is probably older and needs replaced. Most likely dirt/sediment has reached the valve sea when you opened the valve. Solution: Replace Valve You will need: Pipe wrench teflon tape and a valve from the hardware store The valve is threaded into the tank. Turn water off to the tank and drain a few inches such that the valve is not submerged. Use the pipe wrench to remove the old valve. Replace with new valve (using teflon tape on the threads). Fixed!
Q:Having difficulty putting valve rocker back on pushrods and valves...?
Okay, here we go. I have been doing this for 150 years, so I think I know why you are having the problem. The piston must be at Top-Dead-Center (TDC) on the FIRING stroke. Both valves will be what is known as On The Rock. That is or means the push-rods will be resting on the camshaft inside the engine where there is no lift (bottomed). The best way to find this out is to look at the flywheel and see where the magnet is in relation to the ignition coil. The engine actually fires twice (it's just the way it is), but if yo see the magnet on the ignition coil then chances are you are either at TDC on the compression stroke or BDC on the induction stroke. Confused yet? Let's make it easy to tell the difference. When the piston is at TDC the piston will be at the to p of the bore and the magnet will be on the ignition coil. The valve push-rods will be at the same height. This is when you fit the rockers. As you can see there will be two nuts or a single nylock nut that has a nylon insert. If you have the nylock nut then then just tighten the inlet to 0.007 and the exhaust to 0.010. The same applies with the two nut system, except that when you have set the gaps you have to spin the locking nut down and hold the set nut (the first one) and then tighten the other nut down tight to the set nut. But I guess you knew all this, eh. Good to go, eh. I hope I might have been some help. mmalky: 50 years fixing small and large lawnmowers.
Q:How serious are multiple leaking heart valves?
yes, it is more dangerous! have someone take that person to the ER right away or call 911!
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the gate valve is a very important one in flow measurement and also used to help the measure of flow. for example if you know the pneumatic comparator operation, you can easily under stand the gate valve. the gate valve is mainly used for to adjust the float in the tube to zero position or the clearance value.
Q:Where is the egr valve located in a 1999 Kia Pride?
all EGR valves should ( unless a very odd engine) on exhaust manifold. they will have a tube outlet returning back to inlet manifold and a control mechanism on it ( electrical connection) . these valves are known to carbon up and fail both due to soot.heat .wear etc. very possible this is the problem. a temporary fix can occasionally be found by soaking over night in cleaning fluid such as easing oil or petrol etc and washing out but this sort of fix never lasts. be aware these valves are not cheap.
Q:What happens before, during, and after an aortic valve replacement?
They will probably do a tissue valve replacement so there would be no need for life long therapy of blood thinners. As for the post op. Our hospital recovers heart surgeries right in our cardiovascular intensive care unit. We do not reverse anesthesia, we let our patients wake up on their own. Because of this, we have them on a ventilator until they wake up and are functional enough to breath on their own. We also monitor things very invasively, so there are a lot of lines. We have a Swan Gantz catheter which measures the pressures in the heart, an ART line, which measures your blood pressure internally, and an I.V. that goes directly into your heart called a central venous line. Usually after you wake up from surgery, if all your pressures look good, we start to take out those invasive lines and we get you out of bed. Most of our patients are in our unit for 1-2 days if all goes well. Then we transfer them up to the telemetry floor for a couple of days and then we send them home. Valve replacement surgery is still a major surgery but we do them every day and the majority of our patients come out of surgery just fine and are home in a week.
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Heart valves are barriers, described as doors by the Texas Heart Institute (see Resources) that control how the blood flows through the heart, and ultimately throughout the body. When one of the four heart valves becomes diseased or damaged, you are at risk for more serious heart problems because your body must work too hard to get the blood flowing. There are several causes of heart valve disease that can be treated through medications and corrective surgery. Infection Heart valve disease can be caused by certain types of infection. Older people who had rheumatic fever before antibiotics were used to treat the disease may have sustained heart valve damage. Infection of the valves themselves and the walls of the heart can cause heart valve disease. Congenital Causes Some people have heart valve disease simply due to how they were born. Congenital defects of the heart include a mitral valve that is narrower than usual, or a misshapen aortic valve. Tissue Degeneration Older people may have valve dysfunction due to a degeneration of the tissue of the mitral valve. This condition is called myxomatous degeneration. Thickening A thickening of the valve itself, most often in the aortic and mitral valves, can lead to valve disease. This is another cause that is more commonly seen in the elderly. Heart Disease You can develop heart valve disease if you have had other types of heart problems, including coronary artery disease or a heart attack.
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Multi Valve

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