API Cast Steel Check Valve 500 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:i'm being charged $300 to replace a 75gallon water heater valve, is that too much?
Well the issue here they have to drive over, drain the tank, change the valve. The way I see it you at an easy 250.00. So 300 is not out of line. And if the water heater is over 10 years old, I would strongly consider replacing it vs the repair. That heater is expensive I would inquire about if that part is under warranty. But that price I hate to say is somewhat in line.
Q:EGR Valve Position Sensor?
Typically when those sensors start to go bad, the EGR valve doesn't modulate properly between open and closed. When that happens you usually notice a sort of fluttering in the power delivery, often when cruising at a set speed but sometimes also when accelerating as a result of the wrong amount of exhaust gas being recycled back into the engine. You sometimes will notice a loss of power when accelerating as well. If the EGR valve is opening more than necessary it will be allowing more exhaust gas back into the engine than is beneficial....and that will reduce the amount of power the engine produces. If the EGR valve is staying closed more than necessary, you might not notice as many driveability issues but you'll probably notice your average fuel mileage decreasing a little and/or a check-engine light being triggered and/or a failure of an emissions test (even if the check engine light hasn't tripped) if you live somewhere that emissions checks are required.
Q:Trombone Thayer valve?
open wrap is a design for less backpressure through the valve,....the thayer valve reduces that backpressure even more. go play different pro horns side by side, vary the brand/valve combinations and see what plays the most free (especially in the low to pedal range).personally i play an old bach 42k and i love it.
Q:Sprinkler valves make loud "squeak" noise?
As the valve shuts down, the diaphragm will vibrate as the pressure changes from one side to the other, then it will Thump as it seals. This is normal. However, to isolate the squeak, you may check to see if there is a 1(backflow preventer installed, 2) (if built into the valves) the variable pressure screw on the top of the valve is set correctly. The variable pressure screw usually has a cross top handle (older ones had a dial) and should be set so that on a high pressure line, it shuts down fairly quickly. If this is open all of the way, it can cause the diaphragm to squeal by slowing the internal pressure change to shut it down.
Q:exhaust valves material & dimensinons?
Most valves are made of forged steel. The dimensions depend on what car. You can get a factory manual for any car. Call a motor shop to order them. Don't try to make them yourself.
Q:What is a Deluge Valve? (Fire Suppression)?
An alarm valve is a check valve with a method of getting pressure or slight flow from an auxiliary port. The alarm valve opens when pressure on the system side is low enough for supply pressure to open it. then some water goes out the alarm port to a pressure switch or water motor gong. A deluge valve is a normally closed valve, opened by a stimulus from other than pressure on the system side. Typically the stimulus comes from a heat detector for electrically operated systems, or loss of pressure in a pilot line. The pilot line is provided with air or water pressure, and has fusible plugs or sprinklers for detection, mounted in appropriate locations. If the pilot line loses pressure, the deluge valve opens automatically. Manual operating features are always included. Rarely, one finds deluge systems that are manually operated only. The alarm trim can be identical for alarm and deluge valves. If you are charged with designing a system in accordance with NFPA 13, a fire department (siamese) connection is required. Exceptions are: 1. Fire suppression forces (if any) do not have the facilities for providing water to the fire department connection. 2. The authority having jurisdiction waives the requirement. Of course you would want the owner to agree also.
Q:honda odyssey Idle air control valve?
iac valve common to fail on odysee also has problem with the wires to the power steering pressure switch pulling out of the connector causing idle to fluctuate lightly pull on wires to check for bad connection switch is in the power steering pressure line pass. side of car on back side of engine
Q:What Does It Mean To Need A Valve Job On A Car?
if you dont want to spend a lot on repairs,buy an american made car. parts for forien made cars are high high high. ithey cost more to work on and maintain.un less the car in aone condition. not worth it.
Q:Installed a iac valve?
The okorder.com/
Q:is it possible to *** valves to a car?
The number of valves used in an engine depends upon the design of the cylinder head. It may be possible to do a head swap of a 16v head onto a engine block that previously had an 8v head on it. - assuming that the blocks are of the same design. A piston change may also be required as well to make it work properly. All of this is big money , and would be cheaper to buy a complete 16v engine and transplant that as a complete unit , or trade the car and go buy a 16v Punto to begin with.

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