API Cast Steel Lift Check Valve Size 300 mm

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Product Description:

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.


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Q:valve adjustment yz250f?
You'll hear the valves ticking. It will sound like a box of BBs clanking around in the top of the engine. Treat your engine to a valve adjustment and it will give you a long life, without any expensive engine repairs.
Q:Water pipe/ shut off valve hammering?
Air in lines. Leave valve on and push float down manually til it runs smooth.
Q:Diagnose extent of damage from stuck valves?
Stuck okorder.com/
Q:Is it possible to re-port a globe valve?
On okorder.com/
Q:Painting valve cover?
Best if you replace the gasket anytime you remove a valve cover. Looks tacky to have a nice shiny painted valve cover with oil leaking onto the engine. Also, it is important to correctly torque the valve cover fasteners. A common mistake is to crank the fasteners down until they are really tight. This over crushes the gasket and can distort the valve cover which can cause leaks. These fasteners when correctly torqued are not as tight as you might think.
Q:Can anyone tell me the difference betwen these valves?
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:How can I fix a leaking faucet shutoff valve?
The packing around the compression nut where the valve stem enters the valve body needs a twist or two clockwise. Take a small crescent adjustable wrench, and tighten this nut to the right. Should stop the leak. If not, you may have to replace valve but usually this simple fix works. NOTE: If you tighten it to much, you won't be able to open or close the valve, so use just enough effort to stop the leak without needing the incredible hulk to budge the valve.
Q:Heater Control Valve?
the control valve when its turned off keeps water from circulating thru the heater core.. so the hot water doesnt counteract the coolness coming off the evaporater in the ac box under your dash that is the only place those two systems interact.. it sounds like your valve is working fine aside from the leak although i myself would replace it since by winter you may forget that it leaks and on a long drive end up overheating the truck the valve usually runs about 30$ and isn;t difficult to change its worth fixing
Q:Infective endocarditis and valve surgery?
A leaky heart valve is a common cause of endocarditis, Endocarditis is a dangerous situation under any circumstance. The heart problem probably needs to be fixed to enable the endocarditis to clear up. The lung infection places him under added stress and increases the chances of something going wrong from the surgery, but he probably faces even higher risk in the long term if the endocarditis isn't brought under control. The surgery will only place a minor amount of additional stress on his body, and the valve replacement will probably make some almost instant improvements in his strength. Heart valve surgery can be usually be done with an endoscope that doesn't involve much trauma, so the surgical procedure itself is not a big risk.. I'm sure they would not be considering surgery at this point if it were not needed to help him recover.
Q:EGR valve problem?
This does not sound like an EGR valve problem. As stated previously, failed EGR valve symptoms tend to occur at an idle. Your problem may be in the passages that feed the inert EGR gasses to the engine. On many engines, there are multiple passages feeding the engine. One for each cylinder. Since EGR flow consists of burned fuel and oxygen, it is an inert gas. Not capable of supporting combustion because there is no oxygen or fuel left in it. It simply takes up space and is used to cool your exhaust output for emissions reduction. If several of these passages plug up, then the remaining cylinders are fed too much of this inert gas and it affects combustion in those cylinders. Normally during highway cruising this inert gas can be fed to all cylinders equally without a noticeable effect on performance. This scenario is possible on any engine that uses EGR ports in the heads or intake manifold to feed individual cylinders. Removing the EGR flow removes the imbalance and your symptom goes away. Barring that, it is still unlikely that the valve is the cause of your symptom. EGR flow at the wrong time such as during acceleration but not at idle can be caused by the vac controls. Hope this helps!

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