API Cast Steel Check Valve 300 mm in Accordance with ISO17292、API 608、BS 5351、GB/T 12237
- Ref Price:
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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:Hi, i bought an xr250r 2002 model. I rebuilt the engine and put in new exhaust valves. After i did this proper compression in the motor came back and it wasnt blowing smoke anymore. I took it for a 'run-in' ride, and noticed that the engine was quite noisy. I guessed it was the valves needing adjusting. I got numbers for the valve clearences which were: .004 of in inch for the exhaust valves and .005 of an inch for the air intake. Now i have done this the compression in the bike is enormous, it is barely possible to kick over, and the motor is very noisy, there is a loud ticking noise which im guessing is still the valves. Is all this normal considering i have just rebuilt the engine, put in new valves and hardly ridden (one 50km ride)? I would like to keep riding it to run it better to see if the motor loosens up, but im scared to ride it as it is. Any advice would be greatly appreciated.
- .004 is a bit tight for an exhaust valve? usually this is nearer 10 thou. It is better to have slightly larger clearances to the tappets/ valves than to be too tight and risk burning your valves. You do not mention the decompressor! I'm sure your bike should have a manual decompression lever if not an auto retard unit on the cam shaft to allow you to atleast crank the engine up to TDC on the compression stroke. I suspect that is where the noise problem is coming from, either that or you might be one tooth out on your cam shaft gear allowing the piston crown to kiss the valve when it is open...hence explaining the very hard to turn over!! but see my other comment too! What ever It is time to remove the inspection covers and re examine the whole set up. BTW the bike should be an UTTER PIG to kick over compression without a decompressor!! as it has a very high compresion ratio. expect to be standing up on the kick start if you are less than 160 lb (11 stone) 78 kg
- Q:12 valve
- Un plug the vacuum hose on top of the valve, loosen and remove the big tube nut on the bottom of the valve, I have found if you hit it sharply with a hammer 3 or 4 times before you try to loosen it won't break the valve off, once the tube nut is undone remove the 2 bolts holding the EGR valve to the intake manifold. Remove and discard the gasket and install the new valve in the reverse order. If the tube nut still won't come loose try heating it with a torch, if it's really rusted on you might have to replace the EGR tub along with the valve.
- Q:I've been diagnosed with mitral valve prolapse, my doctor just told me that i need to setup an appointment with the hospital to look at treatments for heart mitral valve prolapse-to possibly have a heart valve replaced. I am wondering if i should setup an appointment with mayo clinice in minnesota to get another opinion on that? I'm wondering if surgery is an only option available to me, i have been taking beta blockers that have been no help for the past 3-4 months. Thanks.
- at the start, you ought to talk on your typical practitioner. they might certainly answer your questions extra proper than all of us right here. yet, i can assist you be attentive to that your situation can certainly be very uncomplicated. I certainly have a kinfolk member with an identical ingredient and he leads an exceptionally frequent existence and could no longer desire a valve alternative. If he engages in very actual interest (alongside with taking part in soccer), he does get drained certainly, yet different than that, he's high-quality. In case they did no longer clarify it to you (it seems they weren't very informative) right here is going: Your mitral valve is nearly a sprint door that opens and closes on your heart. once you have a mitral vavle prolapse, what which ability is that as quickly as that valve swings close, it closes and definitely swings IN slightly too far. (Ever seen a swinging door? comparable thought) This reasons slightly a leak. it is a few thing which will ought to be checked each few years in the process your existence, to verify that it does not worsen. touch your typical practitioner and ask her or him those questions, just to be on the risk-free ingredient.
- Q:Is there a devise to reverse the flow to a cylinder. Not the pump. But a inline flow deverter that would shift the flow from one side of the cylinder to the other at the end of the stroke automatically without a person interjecting.ie it extends fully then the flow reverses retracting it fully. Then the flow reverses, and it extends fully and so on.Preferably, with as little lag as possible during the transition.I want the pump to run constantly(not reversing) and the cylinder to run constantly. Do not worry about the heat generated.Would love something that ran off the main cylinder(like a secondary piston or valve that would opendivert flow at the end of the stroke) through linkage. But, I am open to electronics if need be. Further more want the return to be metered so that the push and pull forces will be the same(metered through a smaller opening to adjust for the rod).Thankyou
- even though this patent claims it will save money by eliminating a servo controller, it would seem to me to be an expensive item in and of itself. Other mechanisms would use linkages and lost motion to control a pilot shuttle valve. This would operate like the valve assemble for steam reciprocating pumps.
- Q:Someone explained on chevy that valve guide clearance can limit lift.
- The measurement between the valve stem and valve guide which is the drilled machined hole in the cast iron cylinder head. .0015 - .0018 is the usual valve guide to valve stem clearance.
- Q:Where is the illusive heater control valve?
- The only valve i could think you are referring too would be the vacuum control on the back of the dash mounted heater controls. They do not have a valve in the coolant lines. The heat turned on or off by a vacuum operated door inside the heater box that merely closes and blocks the heat from escaping into the car. If you are having heater problems first make sure both lines running to the firewall feel hot/warm when engine is at temperature. Secondly you will have to find the actuators under dash on the heater box and make sure they are moving if not ck for vacuum.......
- Q:I have a 2004 yfz 450 and in the passed 4 rides (about 2 hours long each), one of my valves has stayed down and been broken when the piston came back up and made contact with it. After putting it back together the first time i checked numerous times to make sure timing, valve movement, and camshaft movement were all correct. and just 2 rides later (today) the same thing happened again. I have not began work on it yet so i do not know if it is the same valve. But has anyone ever had this problem before? Is this something frequent with yfz's or am i missing an important maintence issue? And can anyone tell me why this is happening? All help and tips are much appreciated!! Thanks!!
- This Site Might Help You. RE: 2004 yfz450 valve problem. Need Help!!!? I have a 2004 yfz 450 and in the passed 4 rides (about 2 hours long each), one of my valves has stayed down and been broken when the piston came back up and made contact with it. After putting it back together the first time i checked numerous times to make sure timing, valve movement, and...
- 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:What are the function of reed valves on a motorcycle?
- The okorder /
- Q:Is it hereditary? My dad had a bicuspid valve and we got told it was hereditary but some doctors say it's not, my parents wanted to get me tested in case i had it so we would know in advance but the doctors here refuse to do it (I live in England if that makes a difference) my dad said he would pay to go private if it's hereditary. I know someone who had a bicuspid valve and 3 out of her 4 children inherited it, i know it's pretty harmless until i reach an older age but my parents and i would like to know now, i'm 13 by the way.=]
- it is hereditary sometimes, but sometimes its just a fluke. Im 16 and i have a bicuspid valve and there is no history of this in my family. and yes it will most likely be no problem for you till you get older, if at all most people dont have any problems and will be totally normal, but get it checked just in case because there could be other heart problems caused by it. I have a bicuspid aortic Valve, and aortic stenosis(which is because of the bicuspid valve) which then led to aortic back leak, and then all of those led to be getting an enlarged aorta. Most people do NOT get all these problems, but you never know. Good luck
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API Cast Steel Check Valve 300 mm in Accordance with ISO17292、API 608、BS 5351、GB/T 12237
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 pc
- Supply Capability:
- 500 pc/month
OKorder Service Pledge
OKorder Financial Service
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