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.
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.
150 Class 300 Class 600 Class 900 Class 1500 Class 2500 Class customize
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
Butt Welding Flange RF Flange RTJ customize
A216 WCB A351-CF8 A351-CF8M customize
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
A182-F316 A182-F6a A182-F304 customize
A351-CF8M A216 WCB A351-CF8 customize
A194 2H A194 8M A194-8 customize
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
API 6D BS 1868 customize
API 605 ASME B 16.25-2007 ASME B 16.47A ASME B 16.47B ASME B 16.5 MSS SP-44 customize
API 598 API 6D customize
Face to Face
ASME B 16.10 customize
ASME B 16.34-2004 customize
Wall thickness dimension
API 600 BS 1868 customize
- Q:Degreasing reed valve?
- The flow of gasoline rushing past the reeds is enough to keep them clean. No degreasing is necessary. Are you sure you didn't hear de-carbonize the power valve? If so, remove the power valve and linkage from the cylinder. Remove hardened deposits with a wire wheel on a bench grinder. Clean the parts with parts cleaner.
- Q:Question about bicuspid valve...?
- 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
- Q:what happen when solenoid valve is activated?
- 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:Where to get Electric Valve?
- ASCO okorder.com is another vendor, though Grainger is good. If your budget is tight you could remove one from a dead dishwasher or washing machine.
- Q:Issue with Weil McLain water heater - Zone Valve?
- Located in most zone valves is a end switch. The end switch closes when the zone valve opens. It sends a signal to the AquaStat to bring on the boiler. The pump runs as soon as there is a call for heat on any zone. Now if the water temp in the boiler has reached its high limit than the boiler will not come on. It will wait until the temp drops in the boiler and then it will ignite. So watch it for a few minutes. The end switch or connections may be to blame if the boiler does not come on at all after a reasonable amount of time. The end switch does fail on occasion. Best bet is to call a professional if you continue to have problems
- Q:Engine valve leaking?
- depend which valve it is exaust/inlet? but any valve in the engine would be pricey as they have to take the head of this meens a lot of labour and new seals.
- Q:what type valves used mostly in pneumatic system?
- It depends on what sort of system you are operating. Most butterfly valves leak, a few don't. Ball valves are instant operation, and don't normally leak. Needle valves are used for fine control of the flow rate. Gate valves are quick to operate, and don't normally leak. On aircraft pneumatic systems, butterfly valves are common, where a leak is permissable. Where no leak is permissable, slide valves are used, which have rubber seals.
- Q:function of bellow in a gas safety valve?
- Bellows Relief Valve
- Q:Name the arteries and valves?
- Main arteries: Aorta (oxygenated blood from heart to body), Pulmonary Artery (DEoxygenated blood from heart to lungs). Main Valves: Tricuspid valve (separated right atrium and ventricle to ensure correct flow of blood), Bicuspid Valve( separates left atrium and ventricle), Aortic Valve( ensures blood flow from left ventricle into aorta). hey sorry only saw ur question today:P hope it helps!
- Q:what is the primary function of a valve position?
- ...to control flow.
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