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:steam radiators valves?
- First off these are vents , the valves are at the bottom of the radiator where the pipes come in. Sounds like the vents are either closed or broken. Try turning the adjustment screw if that doesn't work I recomend replacing the with vent from a company called ventrite the valve you are looking for is a vent rite #1. These are adjustable vents used to balance the heat throughout your unit the dial at the bottom is labeled 1-8 start with all of them on 8. Now when the radiators heat up if you find some are getting hotter faster turn those down a notch and check again in a day or so.
- Q:pool and spa valve diagrams?
- You have one or more faulty valves or you've got them turned the wrong way for the operation you want. You also may have a check valve that's going bad. The problem is that I'd have to see the setup around the pump and filter to even get an idea of what goes where. My pool has electric activators for the valves that allow automatic operation from inside the house. I adjusted one incorrectly once and it activated the valve backwards, and I had to readjust it.
- Q:Why does My Check Engine light keep coming on? EGR Valve?
- EGR okorder.com
- Q:Leaky main water shut off valve?
- There is a very simple fix to your problem. Get some teflon tape, turn off the valve, back off the packing nut all the way, twirl the tape into a thread (about 4 to 5), wrap it around the stem, reinstall the nut and snug it up. Done! While there is special graphite packing for this purpose, it is usually hard to find and works no better than the tape. You can apply a small amount of vasaline to the stem before you put on the tape to make the valve operate more easily. Only tighten the nut enough to keep it from dripping or it may become hard to open and close. You can easily add a second valve by removing the pipe above the old one and installing a piece of copper with a valve inline. Some will say you need to worry about electrolysis if you screw an adapter into the existing galvanized but I am sure you will replace the old pipe before that is an issue 20 years from now. Good Luck!
- Q:marching baritone valve problem!?please i need help!?
- put together lunchtime your own house and also bring it for your do the job
- Q:Calculation of Shutdown Valve Instrument Air Supply?
- Shut down valves I've worked with haven't had an 'Air Flow' for their operation. For the smaller valves, they consist of diaphragm operated valves either held open or closed by pneumatic pressure. The air supply at 25psi to give a diaphragm holding pressure of 15 psi, is via a solenoid valve which dumps the air pressure to either open or close the valve depending upon its function. (That of isolating a system or relieving pressure). The solenoid is actuated by a signal from the shut-down system, and the valve is a 3-way unit which isolates the supply air and vents the pressure off the diaphragm. Other SDV's in my experience, are operated in a similar way but are much larger and are operated by a pneumatic air cylinder and piston with air supplied at 100 psi. Others encountered are ... MOV's...Motor Operated Valves that can be automatically operated from the shutdown system, or Operated Remotely from a safe distance (ROV's).
- Q:Heart Valve replacement????
- I'm pretty sure you've got to take a blood thinner with ANY heart valve replacement. The difference is the dosage, really. At any rate, supposedly mechanical don't wear out as easily, and doesn't get rejected as much as with the bovine or porcine valves. I would recommend he calm down a little bit, though. His worrying is only putting more stress on his heart, and if the hospital doesn't consider it enough of an emergency to schedule him immediately, I wouldn't worry so much. There have been amazing advances in cardiac surgeries, and the risks are getting smaller and smaller. Either your boyfriend or his dad's significant other should make absolute sure that he meets his surgeon, and is confident in the surgeon's abilities. If he's not confident, find another one. Good luck with it, and take care.
- Q:How does a solenoid valve work?
- A double solenoid has two solenoids, and when voltage is supplied to one (and not the other) the valve shifts. Note that if voltage is supplied to both solenoids at the same time, the valve will stay in the position is was in (i.e. it won't shift since the solenoids will be working against each other). This is typically not desired, so make sure you remove voltage from one side when supplying it to the other. If no voltage is supplied to either solenoid, the result will be the same as if voltage is supplied to both, in that the valve will stay in the position is was in. What this means is that the cylinder has no home position, so when power is cut, the valve will stay where it was at that time, and the cylinder will continue to do work in the direction is was working in. Again, depending upon what the cylinder was doing, this may or may not be desired. For Conrolling with PLC you may need to wire two discrete outputs of PLC to those two solenoids using relay. And the ON/OFF those two outputs as required.
- Q:mitral valve regurgitation In Toddlers?
- Find yourself, or your daughter, a good cardiologist and follow his advice. I do think that this can be handled with medications in kids as well as adults. Good luck.
- Q:Northface Hammerhead Bite Valve!?
- you have to suck on it. i know that how i worded that it sounds perverted, but that not how it was intended.
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