• Swing Check Valve Wafer Type Double Disc DN 400 mm System 1
  • Swing Check Valve Wafer Type Double Disc DN 400 mm System 2
  • Swing Check Valve Wafer Type Double Disc DN 400 mm System 3
Swing Check Valve Wafer Type Double Disc DN 400 mm

Swing Check Valve Wafer Type Double Disc DN 400 mm

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
10 pc
Supply Capability:
100 pc/month

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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.
2
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.
3
Small opening pressure, the disc can be opened fully with a very small pressure differential.
4
Inside-set bolt-bearing structure reduces leakage and reliable use.
5
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.
6
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

Actuator

 Automatic customize 

Connection

 Wafer customize 

Medium

 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   

2-Disc

 CF3  CF3M  WCB  CF8  CF8M  CF8C customize   

3-Pivot

 1Cr13  1Cr18Ni9Ti  0Cr18Ni12Mo2Ti  2Cr13 customize   

4-Spring

 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 400 mm

Swing Check Valve Wafer Type Double Disc DN 400 mm

Swing Check Valve Wafer Type Double Disc DN 400 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.




Q: I got an engine knock and backifiring and no power not even to move the car just a few feet. I figured its the vales that are eather broken or burned out. I just started to take my top end apart to check and change borken or damaged valves so i can drive the car once again. My question is, when i take the valve cover off i can see what looks like the valves and the springs and something in the middle of the springs, now what iam i gona be looking at for a broken/damaged valve since i dont see any obvious damages but i could be wrong.
take it in.
Q: Is it possible for car manufacturers to make 32 / 64 / 128 / 512 Valve Car Engine just like in a PC CPU? The highest valve I saw so far is 16-valve engine. Just asking :-)
There's no point. 4 or 5 valves per cylinder are enough for almost every automotive application. Or are you getting valves and cylinders mixed up? Even in that case, there's no point. Eventually the complexity and weight cancel out any benefits you'd get from the added power it could create. Also, you would eventually have too much torque for the crank to take without being ridiculously thick and heavy, further increasing the weight of the engine, or serving as a limiting factor for maximum engine size. Waitasec...you ARE getting them mixed up. There are plenty of 24 and 32 valve engines out there (3 and 4 valve per cylinder V8s) . Valves are parts on the top of the cylinder that let IN air (and in some cars, fuel), and let OUT exhaust gases. The more valves per cylinder, the more freely these gases can flow...but past a certain number, additional valves are pointless. The most CYLINDERS in an automotive engine in current production is the Bugatti Veyron's 16 CYLINDER engine, which has 4 VALVES for each CYLINDER, for a total of 64 VALVES.
Q: Hi. I am planning to install new kitchen faucet and noticed that there are two shut off valves under the sink. One of them is badly rusted and needs to be replaced. I noticed that it is connected to three pipes (one of which is kitchen faucet). The other is clearly water coming in. What is the third one connected to wall? Also how should I go about replacing this? Anything that I should be careful of?
In most installations, its the pipe that comes OUT of the wall, that is the supply line. On old enough faucets, a sprayer could have been attached by connecting it to one side or another (usually the hot water line) A dishwasher would also be connected to one or the other shut - off valves, which would depend on the model of dishwasher. You didn't mention, do you have an instant 'tankless' hot water heater under the cabinet? If so, then yes, your water supply may be coming from it, rather than the wall.... in which case, I'd suspect there was another sink (bathroom?) on the other side of that wall, being fed by the same tankless heater. This would NOT be the normal way to connect a tankless heater....but you wouldn't believe some of the things I've seen over the years, lol. And of course, if your refrigerator has an ice maker, and/or water supply in its door, you'll have a line running to the cold water supply for it.... but it may or may not be under the sink. Often, it gets run right through the floor and connected to the cold water line there. We can't really see enough of the lines to tell where they are going to give a definitive answer. Feel free to email or post more pics of all the lines, and I'll check back later, or you can email me. If both shut-off valves are corroded any at all, I'd go ahead and replace both of them, while I was working under there. Have Fun
Q: Model 28 BS 12.5 HP engine intake valve sticks. Please advise.When under a full load like tall grass, it runs great, but when the load is not as heavy, the intake valve sticks open, spewing gas back through the carb and mis-firing.
Are you sure that the valve is sticking or is the carburetor flooding?
Q: I live in Houston (where it hardly EVER freezes during the winter..) This winter it froze and the valve on the sprinkler system flew off and water started shooting straight up. Now that it's getting warmer and I'm going to need the sprinkler.. I have to repair it. Is this an easy fix that I can do myself? Or should I call someone.
easy.. just dig around the valve a little bit.. unscrew the valve .. and screw new 1 in...removing the dirt is necessary so when the broken valve is removed dirt dont fall into the open pipe... it is probably only about 8 inches deep... and 7 dollars for a new valve
Q: I think on old AC units They had a different valve than the shrader. It might be called a king? Anyway, I can't get my gauge to read the pressure. The needles don't move at all. How can I measure, refill this type of HVAC?
Unless you are EPA certified, you have no business checking the refrigerant in old AC units. If you get caught, you could face a hefty fine.
Q: whaT ARE THE SYMPTON OF A BAD EGR Valve Position Sensor loss of power ?1998 toyota camry v6
Typically when those sensors start to go bad, the EGR valve doesn't modulate properly between open and closed. When that happens you usually notice a sort of fluttering in the power delivery, often when cruising at a set speed but sometimes also when accelerating as a result of the wrong amount of exhaust gas being recycled back into the engine. You sometimes will notice a loss of power when accelerating as well. If the EGR valve is opening more than necessary it will be allowing more exhaust gas back into the engine than is beneficial....and that will reduce the amount of power the engine produces. If the EGR valve is staying closed more than necessary, you might not notice as many driveability issues but you'll probably notice your average fuel mileage decreasing a little and/or a check-engine light being triggered and/or a failure of an emissions test (even if the check engine light hasn't tripped) if you live somewhere that emissions checks are required.
Q: I want to put a blow off valve in my car to make it sound cool lol but i dont have a turbo yet ... do i even need one?
A blow off valve is completely pointless without a turbocharger. Without a turbocharger, there is vacuum, not pressure in the air intake. There is no pressure to blow off therefore the valve will never operate. You would never get the sound that you are looking for. So the device would be completely pointless. It would not even look cool. When someone would see it, they would think. What idiot would put a turbocharger blow off valve on an engine without a turbocharger. So it would look stupid, not cool.
Q: Can a clogged EGR regulator valve cause my car to stall out and die when it's idling at red lights?If I give it a little has it wakes the car up and keeps it from dying.One mechanic told me it was clogged up and that it can cause that issue. My boss says there's no way that's the problem... I say we've fixed cleaned or replaced just about everything else...Is this true or is the mechanic just trying to pocket a bit more $$??
Before I answer I am not specifically an auto technician but have worked on my own cars my whole life even rebuilding a 350 chevy small lock motor so I know a few things ???? ,,,, yes a malfunctioning egr valve can cause this issue but can be a number of things causing you motor to not get the right fuel/air mixture including a bad oxygen sensor, I suggest finding a second opinion to actually look at and test what is causing it
Q: My pressure reducing valve (or restricting valve) was looked at by three master plumbers and they all said I need a new one. My water pressure has been low for weeks. It measures about 100 psi at the outside hose bibs, but it is very low inside and suddenly reduces after you turn on the facets inside. The shower is ok. My automatic sprinkler system is not able to work now due to low pressure. A relative of mine thinks we can just add a handle (as one is missing) on the valve and adjust the pressure ourselves. The repair of the valve is around $500-600! I am told in Texas that we have to have a permit and inspection to repair this valve. Also I was told by the last plumber that came out, that I have to install a expansion tank on my new hot water heater according to code. I'm not sure if that is a city code or federal. Please respond as to information you may have on this problem. The expansion tank is required I'm told when you have a pressure reducing valve for safety, is this true?
The cost you quoted seems a bit high to me. Mine didn't cost anywhere near that amount in East Texas. A pressure reducing valve acts like a check valve when there is no flow. That is it closes as the pressure rises when you are not using any water. In this condition, the hot water heater can raise the pressure even higher since there is no place for the expanding water to go. That is the reason for the expansion tank. Without the expansion tank the pressure relief valve on the hot water heater can relieve unnecessarily or weep a bit.

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