API Cast Steel Check Valve Flange RF in Accordance with ISO17292、API 608、BS 5351、GB/T 12237
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 pc
- Supply Capability:
- 100 pc/month
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The features of check valve
Bolted Bonnet;Swing and lift disc;Metallic seating surfaces.
Body and Bonnet Connection
The body and bonnet of Class150~Class900 check valves are usually with studs and nuts.And the body and bonnet of Class1500~Class2500 check valves are usually of pressurized seal design.
Body-To-Bonnet Joint
Stainless steel + flesible graphite wounded gasket is used for Class 150 and Class 300 check valve;Stainless steel + flexible graphite wounded gasket is used for Class 600 check valve,and joint gasket is also optional for Class 600 check valve;Ring joint gasket is used for Class900 check valve;Pressurized seal design is used for Class 1500~Class 2500 check valves.
Seat
For carbon steel check valve,the seat is usually forged steel.The sealing surface of the seat is spray welded with hard alloy specified by the customer.Renewable threaded seat is used for NPS<10 check valves ,and welded on seat can be also optional if being requested by the customer.Welded on seat is used for NPS>12 crbon steel gate valves .Forstainless steel check valve,integral seat is usually adopted ,or to weld hard alloy directly integrally.Threaded or welded on seat is also optional for stainless steel check valve if being requested by the customer.
Standard Criteria | ASME/ANSI/API customize |
Pressure Rating | 150 Class 300 Class 600 Class 900 Class 1500 Class 2500 Class 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 650 mm 700 mm 750 mm |
2 inch 2.5 inch 3 inch 4 inch 5 inch 6 inch 8 inch 10 inch 12 inch 14 inch 16 inch 18 inch 20 inch 24 inch 26 inch 28 inch 30 inch customize | |
Actuator | Automatic customize |
Connection | Butt Welding Flange RF Flange RTJ customize |
1-Body Material | A216 WCB A351-CF8 A351-CF8M customize |
2-Seat ring | A105+13Cr A351-CF8M A351-CF8 A105+Tool Steel customize |
3-Disc | 13Cr+A216 WCB A351-CF8 A351-CF8M Tool Steel+A216 WCB customize |
4-Arm | A351-CF8M A216 WCB A351-CF8 customize |
5-Nut | A194-8 A194 2H A194 8M customize |
6-Arm pin | A182-F316 A182-F6a A182-F304 customize |
7-Yoke | A351-CF8M A216 WCB A351-CF8 customize |
8-Bonnet nut | A194 2H A194 8M A194-8 customize |
9-Bonnet bolt | A193-B8 A193-B8M A193-B7 customize |
10-Bolt | A193-B8 A193-B7 A193-B8M customize |
11-Gasket | graphite+304 316+graphite customize |
12-Bonnet | A351-CF8 A216 WCB A351-CF8M customize |
13-Eye bolt | A181 customize |
Design Standard | API 6D BS 1868 customize |
Connection Standard | API 605 ASME B 16.25-2007 ASME B 16.47A ASME B 16.47B ASME B 16.5 MSS SP-44 customize |
Test Standard | API 598 API 6D customize |
Face to Face | ASME B 16.10 customize |
Pressure-temperature ratings | ASME B 16.34-2004 customize |
Wall thickness dimension | API 600 BS 1868 customize |
- Q: i would like to hear from anyone who has actually had the work done. i also would like to know if the valve worked.
- I suggest putting this question anywhere but in cars and transportation.
- Q: I know what a blow off valve is but where does it blow out the air out off does the air blow out threw the exhaust or what?
- Depends on the type of blow off valve. Some vent to atmosphere(just blow it out into open air) others recirculate(blow the air back into the intake farther upstream). Which one it does depends mainly on where the blow off valve is located in the system. If the car has a MAF(mass air flow) sensor and the blow off valve is located after that sensor then it has to be recirculated, because the sensor has already registered that air and if it vents to atmosphere then the engine will run rich because the ECM will be putting too much fuel into the engine.
- Q: What is motor operated valve (MOV) please answer me if anybody have experiance in instrumentation filed, please explain overhauling and troble shooting
- Good approach, correct
- Q: Hi....my boyfriend is currently waiting to have heart valve replacement surgery and im a little worried about the whole thing...he doesnt like talking about it but if someone knows the answer to my questions I'd be so greatful!!First of all a little detail....he is 19, as far as i know he was born with this problem with his valve but it has got worse over time. he was also born with a hole in his heart but had an operation as a baby to fix this. he gets short of breath and often has pains in his chest. he says hes going to have a pigs heart valve to replace his, by open heart surgery (in a few months time). my main worry is whether the operations are always successful? and will this condition/operation affect his life expectancy??please if there are any experts in the field help put my mind to rest....!thanksshelly x
- Open heart surgery is always a risk, as is any major surgery. The main risks are from infection and blood clots. The risks taper off very quickly within a few days after the surgery. Heart valve replacements are a common operation, with a high success rate. Life expectancy is generally better with a valve replacement; but not all valve problems reduce life expectancy to begin with. Sometimes the trade-offs are more of an issue with quality of life, with higher quality achieved with a functioning heart valve, so some people may be taking a medical risk to obtain higher quality of life. No one can tell you for certain what the outcome of this operation will be. The odds are very high that everything will go perfectly and he will fell better than ever before. There is a very small chance that he will end up worse To put the risks in perspective, a person i know had minor surgery to her knee - a simple 1 hour operation done at an outpatient clinic. Ten days later, a clot broke loose and she died in her sleep. I have had the same operation twice and didn't even miss more than a few hours of work. Another person i know had severe heart problems and docs said it was terminal, but an operation could prolong his life maybe 5-7 years. He had the operation and its now been almost 20 years and his cardiologist says his heart is healthy and there's no reason why he might not live another 20 years or more.
- Q: i recently adjusted my valves on my 01 civic with a 1.7 sohc vtec motor and i did it to the specs under the hood and i didnt have them too tight or too loose on the feeler gauge and they are pretty loud are these motors just that noisy? has anyone else adjusted them to something different that works better?
- 1.7 SOHC VTEC? I thought that used hydraulic lifters with the small flat plates under the lobes like a subaru or the DOHC older style hondas no? Otherwise i've never adjusted those valves unless they are the same as my old engine like a 1.6 SOHV ---V for valves Where you adjust the top screw and loosen the nut then adjust with the guage. Question are you useing the manual while adjusting from Honda? You can't just take the valve cover off and start sticking the feeler guage at every spot, Do know where each piston is at and at what stroke? also don't get the adjustment wrong for EX. and IN. side because that will just mess everything up even more. Is it high mileage also? and if you know you did it right and it still sounds loud you might have a bent valve or just engine damage like piston slap or something else. I've never had to adjust the valves for that vehicle in all the years i've worked on hondas or acuras, even though they say to adjust every 100k or something we've never had one that was really loud in that model plus those engines are dirt cheap and easy to swap if any engine damage is done... But ya, the honda manual is best for step by step instructions specially when you have to check certain ones at certain piston positions and after you can learn a trick to do it even faster and you can check a few at the same time then turn the engine and check the other ones but theres not enough space to explain in detail if you don't know.... Good luck though....( and do not leave the guage under the valve while your tightening the bolt down, you will squish the guage and then your specs will be off to )
- Q: Hello, I went to my garage last friday because my exhaust emmisions light was on, on my Bora MK4 2003 52 plate 1.6 16V. They said its a faulty EGR valve which could be from being clogged up with sh*t. But they said it would be fine to drive, and that the rough idle wouldn't harm the car, and to unplug it if the rough idle became annoying. Its now sunday 3 days since the garage diagnosed it I drove about 250 miles over these days. With the exhaust emissions light coming on then sometimes going off. I think the EGR Valve keeps sticking closed and the engine is very hard to start. Is there anything I can do to help start the car? which is better having it plugged in or unplugged? how do you take the EGR Valve out and clean it what tools are needed is it complicated. any ideas on how I can help it start ? I've tried unplugging it, it makes no difference really.
- EGR stands for Exhaust Gas Recirculation, and is not really good for a car. It causes deposits on the back of the valves, and ruins the valve guides. If the EGR sticks, it also won't let the engine start or have maximum power. Unplugging it, and plugging up the vacuum hose, will prevent it from opening if it is closed, but will not close it if stuck open already. What you need to do then is to remove and clean it will chemicals or wire brush, until if closes again. You can also plug it off with a plate underneath it. The only time you ever need EGR is if you have a high compression engine that would have pre-ignition without the EGR being used to poison the mixture and prevent pre-ignition. But if you run premium gas, then you should not need an EGR at all, and you should consider removing and plugging it.
- Q: List all the brass instruments with valves? Thanks. I need it for the history exam -.-
- Trumpet, cornet, tuba, baritone, alto horn, mellophone, mellophonium, Flugelhorn, valve trombone, french horn, Rein horn, Helicon, Wagner Tuba, descant horn, piccolo trumpet, alto trumpet, bass trumpet, some hunting horns (cor chasse), keyed bugles, ophioclide,unihorner, frumpet. and all those drum and bugle corp instruments. I have listed maybe 1/10 of the instruments that have come up over the years with valves.
- Q: We have a 4 station sprinkler set-up. On the 4 station (last station to run) the Sprinkler headers are struggle to pop up water. From inside the house I hear the valve making a noise, that continues through out the entire run cycle. Any ideas on what causes these 2 problems to occur?
- Sounds like you have a valve that is not opening up fully. Is the noise coming from within the valve box or from the plumbing inside the house? I am assuming that it is coming from the valve box itself. If the valve is not opeing fully at that 4th station, the low volume of water flowing through the opening is causing a humming sound. And, with a low volume of water entering the lateral lines, your last station heads will not popup all the way, or may not popup at all. Check to make sure that you have no soft, wet, mushy areas on the turf in the last station area that would indicate a lateral line breakage or leek. If you do not see this occuring, you more than likely need to change out the valve and replace it with a new one for that particular system... Hope this answers your question. ...Billy Ray
- Q: In place of actual valve oil, can I use WD40? How about baby oil? Are there any household products which work?
- One of the best oil that will really give you a smooth action PLUS, not having to put all the time PLUS, really oiling those sticky valve problem. I recommend Sewing machine oil. It may look like water because it is not slimy, nor thick BUT once you apply it, it goes to work immediately. I recommended that for one of the trumpet play er who had issues with sticky valves. He tried it and been using it ever since. the good thing... its odorless not like Wd-40
- Q: I'm thinking of buying a used 2006 Volkswagen Jetta. It has a 1.5 liter 20 valve engine, and I really don't know what that means. That's good, right?And is this a good used car to buy?
- Most okorder , and check the service records for the car you are interested in buying.
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API Cast Steel Check Valve Flange RF in Accordance with ISO17292、API 608、BS 5351、GB/T 12237
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 pc
- Supply Capability:
- 100 pc/month
OKorder Service Pledge
OKorder Financial Service
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