API Cast Steel Check Valve 250 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:
- 100 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:What are the requirements for valve automation?
- Valves are commonly available for both liquid and gas. You would begin by determining operating pressure, volume, nature of fluid, and temperature of fluid. The electrical requirements are as simple as supplying power to a solenoid. Mechanically, automatic valves are sophisticated. Begin by researching the water supply valves for a domestic washing machine.
- Q:Hi. I replaced my PCV valve but the hose it connects to is cracked at the end. It's still loose and I can pull it off with my hand. It is very hard to get it to stay connected. So my question is that while I am driving, what would happen if the PCV valve accidently disconnects from the hose? Would I still be able to get to a service center?
- in the short term, use a plastic wire tie to secure the hose until you can buy a new hose....you need to replace the hose.
- Q:Is there a difference between the atrioventricular valves in the right side versus the left side of the heart?Is there a different between the pulmonary valves?
- Nope - the atrioventricular valves always seperate the atrium and ventricle, and the pulmonary valves, at both exits to the heart, will always stop backflow into the ventricles. They maintain similar functions on both sides of the heart.
- Q:I noticed when I pulled my pcv valve off the valve cover the entire guts were missing. what would this make the car run like?
- what it really is is a check valve it will flow one way but not the other meaning it lets the motor vent out pressure and no air or debris can be sucked or drawn in its better to have a functioning one cause it can affect performance overall cause it usually is working with emissions devices now to be honest replacing it is almost mandatory, but you actually might not notice any difference at all after its fixed
- Q:My mom just went to DR and will have open heart next Thursday for removal of anyerisum. She was told she has 2 heart valves instead of four. What does this mean? Is it normal?
- Your mom probably has a Bicuspid aortic valve, that she was born with.. it means that the valve between her heart and the aorta has two valve leaflets instead of the usual three valve leaflets (not four) in normal people. Bicuspid aortic valve is caused by fusion of two of the three leaflets. It's a fairly common congenital condition, and is associated with a risk of aortic aneurysm (a weakening of the wall of the blood vessel which then causes ballooning of the vessel wall)...usually of the ascending aorta. All the best for her safe recovery.
- Q:Hey,I have a 1/2 diameter pipe and I want to place a valve on it. I need a valve that can be electronically controlled so the water flow can be started and stopped on demand. I plan to achieve this by connecting the valve to a 'relay' that will be connected to an ardunio or PIC that will programmed to determine when the water is to flow or stop. That make sense? So my question does anyone know a suitable type of valve? I've no experience with valves and there are so many types so I don't know where to start!I would be grateful for any suggestions :)Thanks!
- Your application is very do-able. ASCO makes a valve that would work for your application. A few used ones can be found on Ebay. A few thoughts: 1) The normal fitting that you would need for the mechanical connection is 1/2 NPT (National Pipe Thread). That is a very common thread in the US. If you have a PVC pipe, you would have to get a fitting to convert 1/2NPT fitting to smooth PVC. If you have a steel pipe, then it has to be threaded for 1/2 NPT. If it is copper, you may have to get a smooth ASCO valve and solder it together. Use teflon tape or pipe dope to make sure that it doesn't leak. 2) Be very careful of your voltage and current. Your relay coil should be a voltage and current draw that will not be too much for the ardunio or PIC output. Also, the relay contact should be able to provide enough current and voltage to run the ASCO valve. BE CAREFUL. ASCO valves have a lot of inrush current, which means that it draws a lot more power to activate that it would be to hold it. Your relay should be sized for the worst case. For example, if the ASCO valve is rated for 120 volts ac (VAC) and is rated at 240VA inrush and 12VA holding, that means that it requires 2 amps to pull it in (240/120) and .1 amps to hold it (12/120). The contacts of your relay should then be rated for at least 120VAC and 2 amps.
- Q:I am looking at getting a baritone horn of my own, but am not sure what compensating versus non-compensating valves are?
- It okorder /
- Q:Electric Hot Water Tank Pressure Release Valve Leaking, Why?
- did you recently increase the heat settings or change a thermostat? an increase in temperature can cause the pressure relief to go off a little...but usually only when the temperature gets up there (160-180oF) which is uncommon for electric. Unless the valves are shut off above the tank, the piping system should handle any pressure increase in an electric tank. Do you have a buffer tank on the hot water side? (usually only when you have hydronic heat) it could be saturated or pre-charged too high. If none of the above are probable, you may just have a bad pressure relief valve, I've changed one before, had to turn off the cold water and open up a cold tap to let all the pressure out of the system, bleed off the hot water until the pressure valve didn't spit out when I opened it, unscrewed the plastic downpipe from the valve(some have it, some don't) and remove/replace it with some teflon tape on the new one (20 bucks or so from the home depot)
- Q:I think I have a bad valve steam seals because when I start the car white-grayish smoke comes out of the back of the car. When let sit for 2 or more hours start car and smoke comes out everytime. Will a valve adjusment fix the problem? Thanks
- Newer cars and trucks nowadays don't need valve adjustments because the valves automatically adjust to its specifications. However, if your car is an old one that needs the regular adjustments, the white-grayish smoke you're referring at can be traced not only to loose valve seals but can also be due to a loose or broken piston rings, a worn out cylinder walls or a detached cylinder head gasket. So do the process of elimination. First, see if it is really due to the valve seals. There's an add-to-oil additive where mixing it with your motor oil can revive old valve seals. Then apply another additive which claims that its oil molecules adhere to metal. After applying these additives and your car continues to emit the same smoke, then by all probability, your car trouble can only be corrected by mechanical repair (which involve huge repair costs) and no amount of add-to-oil additives can substitute for it.
- Q:I live in Houston (where it hardly EVER freezes during the winter..) This winter it froze and the valve on the sprinkler system flew off and water started shooting straight up. Now that it's getting warmer and I'm going to need the sprinkler.. I have to repair it. Is this an easy fix that I can do myself? Or should I call someone.
- Yes easy fix-- go to your big box store with the old valve-- so you get the right size and buy a new one less than $ 40.. chances are with the freeze the plastic parts cracked when the water inside froze---
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API Cast Steel Check Valve 250 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:
- 100 pc/month
OKorder Service Pledge
OKorder Financial Service
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