Swing Check Valve Wafer Type Double Disc DN 400 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.
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.




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Q:3 way valves?
maybe so at the end of the line if it needed to be discharged in a different direction it could, or in case the other side was frozen or something...... and a pump shut off kills pressure,.
Q:Reed valves?
Reed valves were popular when you could get a street two-stroke bike. They allowed air to flow only one-way. I think Yamaha even had a nifty rotary valve thing that squeezed the air that the piston sucked so it would flow a bit faster into the combustion chamber. With a four-stroke, I don't think there's any advantage to complicating the air flow with a reed. That's what cams and valves do. You need to burn more fuel to get more power. There are several ways to do this. You can do this with more RPMs, more fuel/air mixture, or a larger displacement. But that's about power, not necessarily a reed valve.
Q:Valve cover gasket leak?
I have see one time that a car had blown valve cover gasket. It leak very well and Touch on Exhaust Madifold. It cause fire. Engine is High milages. Engine make blow by through piston and cylinder. Bypass gas cause Press gaskets or seals to make oil leaks. Other thing is loose vaccum for brakes. It make hard to press brakes. Like air leak. OR Rubber valve cover gasket getting dry up, and start brittles. Its ten years old, So go and replace valve cover. If you know how, That will be great. Do it asap Than Sorry.
Q:Valve stem seal question?
Yes, you can. There's an excellent article that gives you pretty thorough instructions on how to do that in the link below. Note: If this doesn't stop the smoking check and replace your Cam Position Sensor O-ring, that can cause this condition as well. Best of luck.
Q:Installing kitchen faucet/shut off valves?
You can install a pullout kitchen sink faucet on a wide variety of sinks. There are many options, but the same is not true for the other type of faucet sprayer: A spout sprayer. Let's say you have a old sink to work with. You're probably going to be able to install a pullout sprayer with little problems. You probably won't be able to do the same with a faucet sprayer built in to the spout on an older sink though. These are excellent when you want to spray and wash your vegetables. When you hold your vegetables under a typical faucet, you have to roll them around with your hands in order to loosen any dirt or other contaminants. The sprayer works like a mini hose and can do that work for you.
Q:What is the torque specs for a valve cover?
Valve Cover Torque
Q:Articifical Heart Valves -?
There are three of these things: the caged-ball which utilizes a metal cage to house a metal ball, tilting-disc valves, which have a single circular occluder controlled by a metal strut. They are made of a metal ring covered by a tissue, into which the suture threads are stitched, in order to keep the valve in place once implanted and there's bileaflet valves, which consist of two semicircular leaflets that rotate about struts attached to the valve housing which is the most recent type, eh? So heart valves are considered to be extremely durable. They're made of either pyrolytic carbon or titanium coated with pyrolytic carbon, and the sewing ring cuff is Teflon or polyester or dracon (probably dacron :P). They key to the materials chosen is durability because of the constant fluid flow. I see this as pure engineering, not medicine, specifically fluid mechanics: like if there are rare complications for example thrombus formation is a debilitating side effect of high shear stresses created by design of the valves. Ideal heart valve from an engineering view would produce minimal pressure drops of course have small regurgitation volumes because it's supposed to minimize turbulence and regulate the flow.
Q:hydronic heating zone valves?
Its just an educated guess but I would say it would cause system shock if a valve just snapped shut as against closing gently. Assuming the system was shutting down as a zone valve shuts the control switch opens and turns off the plant whilst the valve is still partly open. With a solenoid unless you fit a timer to pre shut off the plant then shut off the solenoid you would probably cause some plant damage. Also by the time you have wired all that lot up you may as well do the job with a zone valve.
Q:HVAC with older refrigerant valves.?
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:Double valve air pump?
You only need to use the one valve, each valve will do 10-30 gallons so you'll be fine. As to the bubbler problem (sounds like a bubble brick to me, so that's what I'll call it), it's most likely uneven. If the brick isn't level it won't let out as much air in the right places. If leveling it doesn't work try adjust how much air goes into it, but the double valve won't be the problem for this. It came with two check valves for the two outlets, you only need to use one.

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