API Cast Steel Check Valve 300 mm in Accordance with ISO17292、API 608、BS 5351、GB/T 12237

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Product Description:

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.


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 


 Automatic customize 


 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 


 13Cr+A216   WCB  A351-CF8  A351-CF8M  Tool Steel+A216   WCB customize 


 A351-CF8M  A216   WCB  A351-CF8 customize 


 A194-8  A194   2H  A194 8M customize 

6-Arm pin

 A182-F316  A182-F6a  A182-F304 customize   


 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   


 A193-B8  A193-B7  A193-B8M customize   


 graphite+304  316+graphite customize   


 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 

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Q:1+ Tricuspid/Pulmonic valve insufficiency?
Shashank has the interpretation all wrong. The information you provided us with only gives details about the Tricuspid and Pulmonic valves. 1+ valvular insufficiency means that these valves are letting a small amount of bloodflow backward into the chamber it came from. 1+ represents a mild degree of regurgitation which is normal in patients of all ages. I have it as well. If you are concerned about the chest discomfort you are experiencing, it wouldn't be a bad idea to see a doctor but as far as your test results are concerned, those results are perfectly normal.
Q:Can anyone tell me the difference betwen these valves?
Doleful is an adjective which means that it describes a noun. Similar words include: dreary, forlorn gloomy, grieving, lamentable, melancholy, mournful, pitiful, plaintive, sad, sorrowful. It was a very doleful day for Mary when she had to leave her friend behind. Lament is a verb. It means to grieve or to bemoan the loss of something. Frank lamented the death of his beloved cat. Woe is a noun. Other words meaning the same thing are misfortune, sorrow, suffering, grief. misery. Woe to the person who breaks his promise to me. Their woes became unbearable to handle.
Q:Why does plumbing code require a gate valve for the main shutoff?
Gate valves seldom hold 100% with age. Gate valves mechanism is all brass with no washer to deteriorate. I agree modern ball valves are much better for positive shut off of water. It is not against any plumbing code to put a new full port ball valve on your side of the water meter and use it exclusively to shut your main water line off. New ball valve may be made of stainless steel or brass. Carbon steel valves of any kind may not be used on potable water systems anywhere.
Q:how man cups does the miteral valve have.....?
Mitral valve has two cusps. It is located between the left atrium and the left ventricle , oxygenated blood comes from the lungs by pulmonary veins and drains into the left atrium then the left atrium pumps this oxygenated blood through the mitral valve into the left ventricle. After that the left ventricle contracts pumping the blood through the aortic valve to the aorta..
Q:check engine light- valve cover gasket?
Oil drips downward, so the leak is higher than you see the puddle. The valve cover gasket is about the highest up you can have an oil leak. Changing that is not all that difficult. I doubt the check engine light is on for that though. There's no sensor for a cruddy engine. Like the lady said, have the OBD II code retrieved so you can pinpoint the problem. A lot of oil can leak from a valve cover. A head gasket can leak oil under pressure and if that's where it's leaking from the repair is much more difficult and the reason for a head gasket leak is usually tons of miles and often warpage of the head from it not being properly torqued or having been overheated from a coolant boilover and continued engine operation under that condition. If the head gasket is blown from rough service and extreme mileage, there can be low compression accompanying- and possibly a check engine light will come on because of changed emmission.
Q:Can deer hear an artificial heart valve?
I am a deer hunter as well, the deer will more than likely sense your worrying over the thoughts you are having with your dads valve, just relax out there!! Become one with nature, de-stress!! Be grateful to hear the sound of your fathers new valve on life, and be happy he is out there with you!!! These times you will hold with you when he is gone. Make the hunting trips a special time for you and dad. I wish mine were still here to enjoy the hunt with me. Just relax the deer will be there when they are ready. Pray for dad to get the Ultimate buck. Life is short.
Q:Heart Valve replacement????
I'm pretty sure you've got to take a blood thinner with ANY heart valve replacement. The difference is the dosage, really. At any rate, supposedly mechanical don't wear out as easily, and doesn't get rejected as much as with the bovine or porcine valves. I would recommend he calm down a little bit, though. His worrying is only putting more stress on his heart, and if the hospital doesn't consider it enough of an emergency to schedule him immediately, I wouldn't worry so much. There have been amazing advances in cardiac surgeries, and the risks are getting smaller and smaller. Either your boyfriend or his dad's significant other should make absolute sure that he meets his surgeon, and is confident in the surgeon's abilities. If he's not confident, find another one. Good luck with it, and take care.
Q:please i want theory of MOTORIZED VALVE ?
Your question is too broad for this forum Google your question Motorized valves Motorized actuators Hope this properly answers your question
Q:Replaced a Rain Bird control box, Power on and not controlling valves.?
I would test the leads inside the control box first... You will have to run the controls manually to troubleshoot the problem. Get a voltage meter to test for the 24 volts at the transformer connections inside the box... If you do not have the 24 volts then the problem will be the transformer. If you have the correct voltage from the transformer then you can test each of the station terminals to common. Test through each station to see if you have 24 volts at each station terminal, but you may have to remove the wires off to test. If you do not have power coming from each station… then the problem will be the rain bird control. The next step would be testing the wires… If you reconnect the wires… test just prior at each valve location to see if you have the 24 volts between the common and each station wire… if you can prove out that there is 24 volts at this location then you’re down to the final testing. Reconnect the valves – one side to the common and the other to each station wire… Getting the power (24v) to the valve should have cleared your problem. Good Luck… Running the valves manually will not affect the operation of the rainbird control... but with my rainbird valves.. you can shut off the valves completely and disable the electrical controls of the valve... make sure that you have not closed the valve off manually preventing the electrical side... a problem with rainbird controls. This does not have anything to do with residual water in the lines... I would test this side first before you get into the electrical side... could save you a lot of time.
Q:Piece's of metal in my valve cover?
Check your push rods. They may be worn, and maybe the tip of one may have broken off from wear. Its has happened with me on older small block chevy engines, especially with high milage.

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