• Check Valve of High Quality with API 6A Standard System 1
  • Check Valve of High Quality with API 6A Standard System 2
  • Check Valve of High Quality with API 6A Standard System 3
Check Valve of High Quality with API 6A Standard

Check Valve of High Quality with API 6A Standard

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

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1. Structure of Check Valve Description


This product is designed and manufactured fully in accordance with API Spec 6A wellhead and Christmas tree equipment standards,and can thus be used interchangeably with the products manufactured at home and aboard,which tally with API Spec 6A specifications ,or used to form a complete system.


This is a type of check valves which rely on the pressure of working medium to get meal-to-meal sealing between the core and body(seat). The higher the medium pressure,the better the sealing performance. It is always able to withstand the pipeline pressure within the value cavity.


The body of the valve is forged with alloy steel,which has solid mechanical properties and is able to withstand high pressure in safty and reliability.


The bonnet and the body of the valve are connected with blinding bolts. Sealing washers are used to seal up the bonnet and the interior wall, which reduces the space in between to a minimum (designed as 0),thereby considerably minimizes the erosion of the bolts and the bolt holes,caused by erosive  media,and also decreases the load taken by the bolts.


2. Main Features of Check Valve


1) Fitted  with a valve-opening indicator
2) Designed with the relief valve
3) Designed with the plane thrust bearing structure
4) Designed with the meal-to-meal sealing structure
5) Fitting with the valve stem sealed by using some special material made lip-shaped packing
6) Made of high wear-resising& corrosion-resising materials, both the valve core and bean are durable
7) Designed and manufactured strictly in accordance with API Spec 6A ,ANSI and NACE MR-0175 standards.


3. Check Valve Images

Check Valve of High Quality with API 6A Standard

Check Valve of High Quality with API 6A Standard

Check Valve of High Quality with API 6A Standard


4. Check Valve Specification


Check Valve of High Quality with API 6A Standard


5. FAQ of Check Valve


We have organized several common questions for our clients,may help you sincerely:


①How about your company?

One of the leading manufacturers and suppliers specializing Oilfield products in China, mainly offering various of oilfild products consists of our one-stop sales. The integrated sales & service ensures customers with various demands an easier access for purchasing management.


②How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.


③How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible.


Q: I have a curtis toledo compressor at my house. While moving it a helper dropped it on its side into the tank and broke off these 2 valves off the very top of the compressor. They had a copper line that ran off both of them and went over to the auto on/off switch, I'm guessing that's what it is. Where can I buy these or at least what are they called?
They are the unloader valves. Look online for places that sell parts for air compressors.
Q: hey...im kinda confusedis cochlear an artificial valve???and if not..what is an artificial valve??
The cochlea is the auditory portion of the inner ear. A cochlear implant (CI) is a surgically implanted electronic device that provides a sense of sound to a person who is profoundly deaf or severely hard of hearing. The cochlear implant is often referred to as a bionic ear. An artificial heart valve is a device implanted in the heart of a patient with heart valvular disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery.
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: I am being sent for a level 2 Ultrasound Thursday because my previous US showed one of the babies valves was enlarged. She said all 4 chambers were there but she was very vague on what this means. Care to shed some light?
I don't know what this means in a fetus at 20 weeks since a lot of changes still lie ahead, but you can glean some info from the nature of this type of defect in adults. If the abnormality doesn't change and if no other abnormalities arise, the flaps of the affected valve will poke into one of the heart chambers. This situation is called valve prolapse. Look up mitral valve prolapse as an example. Typically a valve prolapse is not a serious defect, but if the prolapse is severe it might require treatment at some point in life or maybe even multiple treatments. What the heart will look like at birth is probably the bigger question. Some abnormalities signal a genetic defect that might cause other problems as well. Some defects cause a chain of problems in later steps of development. Your doc should have a good idea if any of these concerns exist. Maybe genetic testing will be suggested, but many defects occur with no explanation and they do not cause other complications. I would guess that after the chambers are developed, a dilated valve would be unlikely to cause any significant complications in later heart development, but this is just a guess.
Q: For a project I need to know the ingredients of a product I use and I decided to use valve oil. All it says on the sticker is petroleum distillates. Can someone give me the ingredients? I need it to have atleast 5
Valve oils use proprietary formulas so it is unlikely you will be able to find out an exact composition. The basic ingredients of petroleum (as opposed to synthetic) valve oils are light machine oil (kerosene), mineral spirits and fragrance.
Q: my EGR valve has gone on my Vauxhall Vectra 2.0 DI LS, 1998, 5 DOOR HATCHBACK, so i am getting a new one next week, what i want to know is, is it an easy job to replace them if so how do i do it? or is it better just to let a garage do the job?
Easy. Just google it and it will tell you how. It will take a minute to change.
Q: I did a compression test, and I have a broken valve. everything else is in perfect condition besides this valve and I have carbon getting built up in one of my pistons. Can I run the car like this? What cause this from happening what was the cause age?1999 Ford Explorer 4.0 OHV with 146k,miles
Let me guess, cylinder number 3? (passenger rear) Let me explain. In the last year, we've had three 4.0 Explorer's in our shop with a hung valve on #3. The last one we had in the shop, the valve broke without warning and broke the rod which cracked the block on the drivers side. They said it was running fine one second and made some noise and it started missing. It wasn't even knocking when it came in. Something about the #3 on those.
Q: are the carborator reed valves supposed to be open or closed on a 1999 yz 250?dirt bike
the aggregate is slightly skinny. The exhaust will smoke much less, however the appropriate end will ware quicker then standard. replace the piston rings as quickly as a 12 months could shop the engine risk-free.
Q: I'm looking for a way to fix my noisy piston valves on my full sized Yamaha tuba. It makes a loud, metallic clang whenever any of the valves are pressed or released. Thanks!
Piston valves normally have cork or felt cushions so that they don't clank when you operate them. You may be able to get replacements at the music store where you get your valve oil, and they may have a repairman on site or on contract who can do a professional referb on your instrument.
Q: Its stuck to an angle where the metal parts of the wheel block the air pump from letting it secure itself around the valve so i cant put air in, it all comes out the sides, i dont want to have to replace anything for i dont know much about bikes, but any solution to my problem? Thanks
you will need to undo the valve and straighten up the tube, then try to pump it up again. The wosrt case seario you may need a new tube, which will only cist about $5

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