• API Cast Steel Check Valve  600 mm  in Accordance with ISO17292、API 608、BS 5351、GB/T 12237 System 1
  • API Cast Steel Check Valve  600 mm  in Accordance with ISO17292、API 608、BS 5351、GB/T 12237 System 2
  • API Cast Steel Check Valve  600 mm  in Accordance with ISO17292、API 608、BS 5351、GB/T 12237 System 3
API Cast Steel Check Valve  600 mm  in Accordance with ISO17292、API 608、BS 5351、GB/T 12237

API Cast Steel Check Valve 600 mm in Accordance with ISO17292、API 608、BS 5351、GB/T 12237

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
10 pc
Supply Capability:
500 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:It seems like the shutoff (stop) valve for the toilet is preventing my toilet tank from filling up for flushing. When I shut the valve, and open again, the water flows into the supply tube that flows into the tank for a few minutes. Afterward, the flow of water stops BEFORE filling the tank as if it lost pressure of water flow.I repeat the above (closing and opening valve) and does the same thing. (There is also no sign of leak...)What can I do? I'm hoping I don't have to call the plumber.
Go to Lowe's, Home Depot, Ace Hardware, and buy a Fluid Master Complete kit. It is by far the best I have ever used in 6 houses, in 3 States.
Q:okay, well, I understand partials. But, on a trumpet, what does each valve do? I mean, I had this idea that each one was a half-step up from the previous...but that's not true. Is there some sort of pattern to them? Does each one have a different purpose?...Please answer as basically as possible. I don't play music very often, and I definitely don't speak brass-ish.
Each valve kicks in that pipe that comes out of it and makes the instrument longer... and lower sounding. #1=1step, #2= 1/2 step, #3= 1 and 1/2 steps. Just add them up to see what the combinations do. Each time you lower it you get another overtone series to play up or down on.
Q:Hi, I'm looking for asymmetrical two way valve needed in pipe line liquid product
Valve company has been able to fulfill the requirements of its customers according to the highest standards, and always consider the customer satisfaction, so we would be grateful to receive their viewpoints and comments. So we also hope to contact us if they need further information, confirmation on any product. Please note that according to continually work on improving our products, all products materials, specification, dimensions, and etc. listed are subject to change without notice.
Q:I am 16, and i have a leaky heart valve. What makes it worse so i can try to prevent from it getting worse? please help.
It would be very helpful to know which valve is involved. At your age a bicuspid aortic valve would be the most common congenital heart lesion. Regurgitation tends to increase over time no matter what is done. There is nothing that you will be able to do to prevent this from getting worse if that is the nature of the valvular abnormality. If you provide me with additional information I may be able to offer a more thorough and thoughtful response. I wish you the very best of health and in all things may God bless. JR
Q:anyone know where this switch or whatever you want to call it is located. the car was in accident. so it wont start but cranks. so i wanted to know where the shut off valve is located for the fuel. thanks.
2007 does not have a shut off valve. Sounds as if some one has used a non programed key Nissan Imobilizer has detected the aftermarket non programed or key with chip embedded in the key has failed. After 4 attempts the car turns on lock mode and it is tow truck time. Gather up all the keys you have they all have to be reprogramed. And it is a good time to have two complete sets of keys and remotes money allowing of course. Only computerized lock smiths and Nissan dealerships can introduce keys. Is there a red light that looks like a car with a key lighting up when you attempt to start the car?
Q:I'm trying to estimate the amount of gas lost when a relief/blowoff valve is opened on a pipeline. If I know the valve opening size, pipe size, gas pressure, and the duration the valve is left open. Ex. A 12 inch pipe operating at 400 psi has a 4 inch relief valve that is open for 5 minutes. How much gas has been release? Assume constant flow of gas. Thanks in advance
Below is one of many sites with software for sizing relief valves. Each relief valve has a specific orifice size usually indicated by a letter such as A, B, C etc. With this and the other information on the gas being relieved you can calculate the rate the valve is relieving when it is open. Note: most of the time you will be in the critical flow range so once the valve is open the flow rate will be constant until the pressure falls and the valve reseats.
Q:according to my study only indurial gate valves have both rising and non rising stem through handwheel and it seems that it doesnot apply to golbe valve and globe valves are only non rising stem. i wanted to know if this is right
The valve in the upper left quadrant of the picture on this web page is a rising stem globe valve. This type of globe valve is common in cast steel and forged steel valves like those used in the oil and gas industry. They can be as small as 3/4 up to about 8 sizes.
Q:okay, so i have a 2003 cr125 that i wanted to trade for a 4 stroke bike, and i found someone with a 2006 kx250f that wants to trade. He said all the bike needs to be running are 4 valves. The bike is in very good condition from the pictures i saw. How much are the 4 valves going to cost if i bring it to a mechanic shop? is the trade worth it? or should i just keep looking? thanks!p.s.- my cr is in absolute mint condition, and i never even rode it because it is just to much bike for me and i am not use to 2 strokes
keep looking, they never need just valves, if it needs valves, the top end also needs to be rebuilt. when your already going to be in the motor that far, it would suck to get it back together and then the piston goes or something else that was getting abused when the valves were going. if you can`t do the work yourself it will be expensive, even if you can do the work you need to factor in parts, machine shop,and specialty tools. you could set up your cr125 for way less money, and make it work for you, i`ve seen little kids and girls at the races riding 125`s and they can`t touch the ground without blocks. and you`ll love that 2-stroke when it comes time to rebuild it, you could put all the best parts in it and do it yourself for under $300, compared to sometimes over $1500 for 4-stroke, take it from me i`ve done it, i`ve raced 4-strokes since 2001. if your not racing, stay on those 2-strokes for as long as you can, they will make you a better rider anyway, and keep riding, you`ll get used to it :-)
Q:Do blow off valves serve any purpose besides making the hiss when you shift? how much does one cost?
Blow off valves are used on cars with a Turbo. They act like a safety valve when the pressure gets too high. That's the hiss you hear.
Q:My sprinkler valve I just put in leaks from the top knobs you turn to allow water to pass through to the 3 main pvc pipes. I turn the water on on the main water line, open the little black twisty knobs to allow the water to pass through to the irrigation lines, but water leaks out through all 3 black twisty knobs. What do I need to do?!?!?!
You are turning on electric valves, manually, with the bleeder valve (little black twisty thing). It is normal for this to happen. This valve can turn on and off a zone, but it also releases air from within the lines causing water to spit out with it. After the air is out, you can twist it down enough to stop the leak and still have that zone remain on.

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