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:Are all the valve games tied together?
The only Valve games that exist within the same universe are Half Life and the Portal series. Aside from referencing each other, Left 4 Dead, Counter Strike, and Team Fortress 2 and all other valve games exist in their own respected universes. Left 4 Dead cant exist within the same universe as Portal since l4d takes place in the year 2008. And as Portal and Half Life share the same timeline, the combine would have already taken over the planet at this point and in left 4 dead you don't see any of this. Also in Half life 1, the portal that allowed the combine to enter earth in the first place took place in 2000 in the game's story, again you dont see any of this in l4d. There are some other stuff in there but I don't feel like getting more into it. Oh yeah one more thing, In L4D2, Louis mentions that he feels like Gordon Freeman when he is on the minigun, the protagonist from Half Life. So according to L4D universe, half life is a video game just like in the real world so that would mean that Portal is too because both those series are tied in.
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Well first, you need to get them inspected, and they'll only adjust the valves if it's needed, even at 6k mile intervals, if your valves are still in spec or very close without lobe drag, they probably won't be changed, so check your bill and ask your tech directly if they were changed, some less reputable dealers may try to pull a fast one on you. If you actually needed ALL 16 shims changed, you're easily talking $1000 in labor, esp. on the 748/916 style heads, which have access ports on the heads instead of being able to remove the whole top of the heads like the newer DESMOQUATTRO heads, and are a PITA to work on because of it. The bad thing is that until recently (and they still need improvement) Ducati's quality control is lower than other manufacturers, meaning very inconsistent performance reliability, just from variances in manufacturing. If you get a GOOD tech to do the bike right in the first place though, not just valves but all-important TPS resetting, cam timing/belt tension, and balanced CO's in your exhaust, you will have a lot less headaches with your Duc.
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There are different type of valves, (ball, gate, globe, needle, diaphram) each have their own characteristics in how they operate and the effect they have on flow. Inherent characteristic would be an effect that valve has on the fluid flowing through it.(steam can also be considered a fluid ) An example is a globe valve used to throttle a flow does so by adjusting the size of its opening. In essense its a variable orifice. Flow through an orifice results in a pressure drop across that orifice. So, an inherent characteristic of a globe valve is a pressure drop.
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try using this link here to help you out. Dont know if you have engine brake or not. but u should be able to still adjust the valves correctly if you follow along with the process.
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Butterfly Valve: a piece that rotates in the pipe 360 degrees Ball Valve- a (circular) plate that goes up and down
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basically component to the diverter valve is broken, besides the undeniable fact that, it extremely is terrific to replace to total diverter stem. If their are 3 handles, you are able to do away with the middle one devoid of turning the water off. Then convey total stem with you to the ironmongery shop. There are quite some video clips on youtube and different ironmongery shop factors of interest in case you like help. good success.
Q:The plastic drain valve on my water heater drips. Unable to stop the drip, I have placed a hose cap on it.?
Easy method, change washer in valve Right method: Turn off main , attach hose to existing valve, route out side to a point as lows with respect to furnace height, open valve and drain water, remove plastic valve. Sweat on new brass valve with torch, turn main back on or just keep bucket under to collect drips and finally Pressure will not build so the thing is not going to explode or any thing - i.e. you are safe E-mail me if you don't fully understand Joe
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Check your fill valve (inside the tank) first. If it appears to be working properly, turn the water off outside the house, drain the tank, take the filler tube ( from the valve to the bottom of the tank on the outside) loose at the valve. Remove the valve and inspect for obstructions, such as calcium and or lime deposits. You may need to replace the valve as they will occasionally wash out over time. Reverse this process to put everything back together, and be sure to wrap the male threads on the supply line (pipe sticking out of the wall) with teflon tape.
Q:Trumpet Valves Question?
No, it's ok, they are both the same. I've been using trumpet oil on my trombone slide for the past 4 yrs. It is less expensive, ad usually in stock. It's not bad. If i've used it for 4 yrs. I'm sure you can use it too! my BFF even used to use my trombone oil, that's how i ran out in the first place. I hope you do well with your instrument! Both are made of the same oil products. But i don't reccomend using cooking oil, or vegtable oil, it is too thick and makes the slide/valves greasy and is very hard to get off. Hope this helps.
Q:erg valve for 2000 honda accord vtec v6?
the accord is one of the best engineered cars that honda has ever produced and if the one you are looking at has a sunroof and leather it is a ex-L model witch is the top of the line model the milage on it is good and the price is as well your are getting a good deal but there are two things you need to know the automatic trannys that came in the v6 accord have alot of problems but dont let that worry you the trannys in the v6 accords from 98 to 02 the 6th gen model normally go out between 100000 and 110000 miles but honda extended the warranty on them to cover this problem so you wont have to pay for it that right there is a great bonus because even though the tranny will go out honda will cover the cost and you get a brand new tranny that is good for another 100000 miles now the second thing is the timing belt is recomended to be replaced between 90000 and 110000 miles but with only 76000 miles on it you have a ways to go before you have to worry about that I myself have an 02 accord 2dr ex-L 4cyl. and i love it it had 68000 miles on it when i got it and now has 80000 and i have only had it for 11 months but i drive my car alot and i drive it even harder i dont think i have ever shifted to the next gear untill it redlined witch i know is really bad for the car but even with as hard as i drive mine i have never had one problem with it well except for the damage i did the under carraige from having it lowered 2 and a half inch when i bottomed out going 127 on the interstate haha good times but yes you are geeting a good deal and if you get this car you will love it

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