• API Cast Steel Lift Check Valve 300 Class System 1
  • API Cast Steel Lift Check Valve 300 Class System 2
  • API Cast Steel Lift Check Valve 300 Class System 3
API Cast Steel Lift Check Valve 300 Class

API Cast Steel Lift Check Valve 300 Class

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

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API Cast Steel Lift Check Valve 150 Class

The features of Cast Steel Lift Check Valve

Bolted Bonnet;Swing and lift disc;Metallic seating surfaces.

Body and Bonnet Connection of Cast Steel Lift Check Valve:

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 of Cast Steel Lift Check Valve:                                                                                                         

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 of Cast Steel Lift Check Valve:

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="" 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.

Parameter of Cast Steel Check Valve:

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

 A351-CF8  A351-CF8M  A105+13Cr  Tool   Steel+A105 customize 

3-Disc

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

4-Arm

 A351-CF8  A216   WCB  A351-CF8M customize 

5-Nut

 A194   8M  A194-8  A194 2H customize 

6-Arm pin

 A182-F6a  A182-F316  A182-F304 customize   

7-Yoke

 A351-CF8  A351-CF8M  A216   WCB customize 

8-Bonnet nut

 A194   8M  A194-8  A194 2H customize 

9-Bonnet bolt

 A193-B8  A193-B8M  A193-B7 customize   

10-Bolt

 A193-B7  A193-B8  A193-B8M customize   

11-Gasket

 graphite+304  graphite+316 customize   

12-Bonnet

 A216   WCB  A351-CF8M  A351-CF8 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

 

FAQ of Cast Steel 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.


Q: when there is fire in the building, the solenoid valve is activated but what happen inside the cylinder actally?
If the pressure in any one zone is different than the other zones it could be one of two reasons; either the pressure is high (usually due to one or more sprinkler heads not poping up), or its low (usually due to a leak in the pipes). Something that could cause low pressure in all the zones are an obstruction in the water line above the valves (unlikely), or a hole in the line above the valve (the water would be filling the valve box and causing damage to the lawn wherever it is located), or leaks in all the lines (again would be easy to identify from the excess water in the ground at the source of the leak). Lastly the valve itself could potentially be faulty. The solenoid inside the valve holds the valve open when electricity is applied across it. If the wires to it are damaged; if the solenoid is bad; or if the valve has any rust or dirt inside that could cause a lower than normal amount of water flow.
Q: Yesterday,my friend told me his ball valve in garden was broken. He want me to help he find a useful ball valve. I find some webs, but not he want. So I want somebody to help me find the useful ball valve. Thanks.
Hi here in the united kingdom the only place you would find a ball valve is in a tank like a header tank in the loft or in a toilet. then it would be a low pressure one or a high pressure one. what you have described sounds more like a stopcock which is a tap to switch off the main water supply to the property. which you should consult the water company about as it maybe there responsibility. so i would consult with them first.
Q: The water in my tub/shower stopped working. I did my research on the net to discover the cause and I also went to Home Depot explained the problem. The worker at home depot helped me get the right part I needed to replace the valve stem. I came home, took the faucet handle off and can see what I need to do next. Everything seems perfect and ready to go, except I can't remove the old valve stem. It seems like the old one should just slide out and the new one replaces it. How do I get the old one out without damaging any of the pipes or hurting myself.
Do you have a valve for the hot and one for the cold, or does one valve control both? If there are two valves they should just unscrew. You might need to go back to Home Depot and get a wrench designed for valve stem removal. (Before you go, spray it with penetrating oil such as WD-40 and let it do it's thing while you're gone. If it's just one valve for both, there's probably a collar that screws on and holds the cartridge in place. After that is off, the cartridge should slide out-ususally with a little 'persuasion' from some pliers. (But don't try to twist it) Hope you get it.
Q: Is there a way to test the EGR valve to see if its still good ? and working right .
Yes there is. Disconnect the rubber hose on top of the EGR valve. Connect a hand-held vacuum pump to this fitting. Start the engine. Slowly apply vacuum to the fitting on the valve. While applying vacuum with the engine running at idle speed, the idle speed should drop or the engine may even stall. In that case the valve is working. If the engine speed doesn't change, the EGR valve may be defective, or EGR tube may be plugged with carbon, or the passages in the intake and exhaust manifolds may be plugged with carbon. In this case remove the EGR valve from the engine. Again apply vacuum to the EGR valve and observe the stem on the EGR valve. If the stem is moving, it can be assumed that the EGR valve is ok. In that case clean the EGR tube and the intake and exhaust manifolds passages Hope this will help you.
Q: i am wanting to know if there is a diagram of the engine or at least if you have to remove the intake manifold to get to the egr valve.
there was an extended warranty on the EGR valve to 8 years or 80,000 miles from new for problems related to insufficient lift of the valve because the port that the exhaust gas flows through gets plugged with carbon. if your car is within the 8/80 take teh car to a honda dealer for a free replacement of the valve and tube if you need to do it yourself or have someone else do it I can scan a bulletin if you want the details of how to do it. if you want that, send me an email by clicking on the icon above my name to the left of this answer and select email be sure to include your real email address that I can send an attached file to because Yahoo Answers doesn't allow attachments. Doing it this way keeps your email address and mine out of the searchable Yahoo Answers database hope that helps
Q: I was looking at the specs on my audi a4 and it said 30 valves and I was looking at a few other cars and they said 24 valves. What do the valves determine? Whats the difference if the car has more valves than another?
Number okorder /.. The picture shows circles inside circles. Think of the larger circle as the cylinder and the smaller ones inside, as valves. In the first one the open area of the valves is 50%. In the second one the open area of the valves is 62%. In the third one the open area of the valves is 68%. And in the fourth one the open area of the valves is 69%. The more open area, the less restriction to flow. This means your engine will pull in more air, which provides more power.
Q: Just wanted to know what the significance of the number of valves is?I know that theres valves for intake and exhaust if i'm correct.if there is four i'm guessing its 1 for air and 1 for fuel if its fuel injected. and 2 for exhaust?are there bikes with 3 valves or more than 4 valves and why?and a basic carburated 2 stroke just has an intake from the carb side and then an exhaust.please give me more info and let me know if i'm correct or not.
3 valves: 2 intake, 1 exhaust (Honda CM400/450, for example) 4 valves: 2 intake, 2 exhaust (very common) 5 valves: 3 intake, 2 exhaust (some Yamaha sport-bikes) 8 valves; 4 intake, 4 exhaust (Honda NR bikes only) Multiple valves allow much greater flow at partial valve openings, when flow is dependent on total valve circumference, rather than total valve area; Multiple valves each weigh less, allowing a higher rev ceiling without valve float;
Q: can anyone tell me the difference between Pressure Safety valveTemperature Safety ValvePressure Relief Valveused in a process industry
Pressure Safety valve and Pressure Relief Valve are essentially the same. When fitted on a pressure vessel they limit the internal pressure to specified limits. When the pressure exceeds a set value they open to release the pressure. Some types will maintain the pressure (Like the pressure regulator on a pressure cooker) others will release all the pressure. Temperature Safety Valves are used in boiler type of vessels containing a boiling liquid, which generates the pressure (Again like a pressure cooker). Usually there is an equilibrium between the pressure and the temperature. In such applications a temperature responsive valve is used to control the inside pressure to safe levels. If based on thermal expansion, they can regulate. Otherwise a fusible alloy just melts and releases all pressure in one go.
Q: I have a 4 diameter column of water 10' tall (filled with water). I need to find a flush valve unit to fit into the bottom of it so that it will flush all of the water out of the column in 1 flush. Essentially this will act as a large toilet but it is for a design project at school. My concerns are that the flapper will close before the water is completely flushed out of the column. Is there any way I can make the flapper stay open thus flushing all the water in column out without holding the chain connecting the float to the flapper valve?
Flapper valves are all about weight and pivot points and center of gravity. The air bubble inside the plug acts like a ping pong ball initially, holding the flapper open. When the water gets down to the level of the flapper, it tends to close too soon as you point out. But you can attach a smal plastic cup to the back of the flapper that fills with water and holds the flapper open when the water level is very low. You put a small hole in the bottom of the cup so that the water in the cup slowly drains out and finally the cg shifts and the flapper closes.
Q: i have been told that a bad EGR valve (exhaust gas recirculation valve) could cause a car to buck or hesitate in mid range speed at low rpms, thats what my car is doing. i work at autozone and i used our code reader and there was a code that stated EGR flow malfunction anyone else have this problem ever? please help me! i dont wanna spend the $120 if i dont need to!
Since you work at auto-zone why don't you get yourself a Haynes repair manual. I would say the egr is probably bad but the book will show you how to test the egr to make sure it's bad. It also has a lot of good trouble shooting information.

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