Butterfly Valve DN80 Turbine Type with Hand Wheel BS Standard

Butterfly Valve DN80 Turbine Type with Hand Wheel BS Standard

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 100 set

Supply Capability:: 50000 set/month

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1. Manual Wafer Butterfly Valve Description：
A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required.

2.Main Features of the Manual Wafer Butterfly Valve
1. Small in size and light in weight, easy instillation and maintenance. It can be mounted wherever needed
2. The material of valve body: cast iron, cast steel, cast stainless steel and so on.
3. Pressure grade: 1.6Mpa, 4.0Mpa, 6.4Mpa
4. Connecting type: flange coupling
5. Temperature range: normal temperature -20---230ºC the thermal slug type -60---450ºC
6. Operation form: automatic open or close
3. Manual Wafer Butterfly Valve Images：

Butterfly Valve DN80 Turbine Type with Hand Wheel BS Standard

4.Manual Wafer Butterfly Valve Specification：
Size: DN50-DN1000
End flange: ANSI B 16.1,EN1092,AS2129
Face to face: ANSI B 16.10
Top flange: ISO 5211
Normal pressure: PN1.0/1.6MPa(150/200PSI)
Body: CI/DI/WCB/ALB/CF8/CF8M
Disc: DI/ALB/Rubber lined Disc/1.2501/1.4529/CF8/Hastelloy Alloy/Monel
5.FAQ
1. What is manual wafer butterfly valve?
A: Wafer style is the more common of the two and is less expensive than the lug style. The wafer style butterfly valve is just about the standard. It ís so common that no one even bothers to use the word "wafer" when ordering a butterfly valve. It is taken for granted that if a butterfly valve is ordered, a wafer style will be received.
2. What is the working principle of manual wafer butterfly valve?
A: A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.

Q: i want to know where we must use swing check valve and where we must use lift check valve in petrochemical companies. what are the differences ? are they different from the appearance? how can we distinguish between them visually?: A swing check valve consists of a flap or disc of the same diameter as the pipe bore, which hangs down in the flow path. With flow in the forwards direction, the pressure of the fluid forces the disc to hinge upwards, allowing flow through the valve. Reverse flow will cause the disc to shut against the seat and stop the fluid going back down the pipe. In the absence of flow, the weight of the flap is responsible for the closure of the valve. Lift check valves are similar in configuration to globe valves, except that the disc or plug is automatically operated. The inlet and outlet ports are separated by a cone shaped plug that rests on a seat typically metal; in some valves, the plug may be held on its seat using a spring. When the flow into the valve is in the forward direction, the pressure of the fluid lifts the cone off its seat, opening the valve. With reverse flow, the cone returns to its seat and is held in place by the reverse flow pressure. There is typically a larger pressure drop across a Swing check valve than across other types.The lift check valve has two major limitations; firstly, it is designed only for installation in horizontal pipelines, and secondly, its size is typically limited to DN80, above which, the valve would become too bulky. For more details you can refer Spirax Sarco, the leaders in Check Valves manufacturing

Q: Carbon keeps building up in the EGR valve. WHY?? and HOW DO I PREVENT IT? The engine is in PERFECT shape otherwise.: I have one too. I replaced the catalytic converter and still happened. I found out that when the EGR is replaced, you should also replace the fuel distributor. It is also under the intack manafold. Not the ingniton distributor. After that, it never happend again.

Q: have a 86 flhtc had new cylinders 10-1 pistons supposed to be 86 cubic inches when i run it up to 90-95 bending valves what can i do to stop bending valves-------HARLEY DAVIDSON: A. Botan and I can conquer anything! And we can't die together cuz She's immortal! But E is my second choice, although I wud probably end up in the other place. EDIT: An if we live forever, I hope we stay forever young. Acctually, only I would need that. Botan is already forever young. And if we lived forever, then we dont need to worry about enimies killing us....

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: Well, it can only get from bad to worse, costing double as much everytime. For now if you leave it, you will need to top up your engine oil very often, and your fuel consumption will become higher as engine friction is higher and ignition sealing is poor (high blowby gases). This means also lower efficiency of the vehicle. If the weather is hot, the engine will have a higher probability of overheating after operating for long periods of time (say 3 hours or so).... but the real danger is if you keep it this way, your crankshaft and connecting rod bearings will start to scuff little by little, which might cost you a very heavy engine overhaul. My advice: send it to a technician now, as it will require special tooling to tighten the cylinder head, remove/install valve springs, and maybe some shim calibration if it is an old model. Valves must also be inspected, and their guides as may have worn out. Give to specialist, I say, unless you have the patience and spirit to experiment.

Q: So i was looking for car parts and i was using my favorite website, and i was looking at turbos which are wicked costly. But i saw some blow off valves which i have heard about before. But i was wondering if you need a turbo in order to have a blow off valve installed into your car. And if you don't my next question would be is it hard to put one in and how?? Thank you for your time..: A blowoff valve goes onto your intake or the piping from your turbocharger to make sure that you dont run to much pressure they are adjustable to whatever pressure you desire. Usually people running a positive displacement blower or a turbochargers run them. That being said I'm sure that you could put one on your car but without a power adder it would never blow off. Except in the case of a intake manifold overpressure such as a backfire.

Q: I went to turn the water off with the shut-off valve so that I could do some work on the toilet tank (replacing old and leaky fill valve) but the water won't shut off. I'm assuming that I'll need to replace the shut-off valve itself but could anything else be causing the problem? The funny thing is, the leaky fill valve that I wanted to replace has now stopped hissing and leaking and the tank seemingly fills fine. But of course the water can't be turned off completely.Just wanted to check make sure that there aren't anything else I should do or consider before I went off to replace the shut-off valve.Thanks: Youdont give much info here.Does the ballcock come back up after flushing, if it doesnt you can bend it gently upwards, so that the piece connected to it that stops off the water, works better.If its ok then best buy a new ballcock with the valve attached.The way these work is all to do with the floating ball at end of ballcock .When the ball is on top of the water , then the other end stops more water coming in.These are usually easy to sort out.

Q: My son was born with bicuspid aortic valve which has developed a leak. He is now on enalipril 2x per day to decrease the afterflow and buy some time before he has to have surgery, but the doctor has discussed our options and we basically have to choose when it comes down to it, whether we go with a valve repair, or valve replacement and if we do replacement we can do mechanical or donated valve or The Ross procedure. And he will probably be under 5 yrs old when this needs done, (he's 2 now) so I would like to keep him off of coumadin (blood thinner) so he can play sports in school if he would like. But I also want to do what is the best for him long term. Any advice would be helpful. thanks: OK I HAVE A 4 YEAR OLD THAT HAS AEROTIC STENOSIS WHICH MEANS THAT AT THE AGE OF TEN HE WILL HAVE TO HAVE A VALVE TRANSPLANT. THE OPTIONS RIGHT NOW ARE A PIG VALVE, WHICH LASTS AS LONG AS A PIG WOULD LIVE, OR A SYNTHETIC VALVE WHICH CAN CAUSE CLOTTING. BUT I WATCHED A DOCUTMENTARY ON A HEALTH SHOW ABOUT A MONTH AGO, AND DOCTORS HAVE INVENTED A WAY TO GROW A HEART VALVE USING CELLS FROM YOUR KIDS HEART. NOW IT WONT BE APPROVED FOR ANOTHER 10 YEARS BUT I JUST THOUGHT I WOULD LET YOU KNOW THAT IT HAS ALLREADY BEEN TESTED AND WAS SUCESSFULL, IF I HEAR ANYTHING ELSE I WILL TRY TO FIND YOUR EMAIL AND LET YOU KNOW. IM PLANNING ON DOING THE PIG VALVE UNTILL THE MEDICAL BOARD APPROVES THE REAL VALVES, THAN I WILL HAVE THAT DONE TO MY SON, SO I WILL NEVER HAVE TO WORRY ABOUT IT AGAIN. GOOD LUCK, I KINDA KNOW WHAT YOUR GOING THROUGH. keep in touch with me, and let me know.

Q: My car (RWD) has vacuum leak and has the code PO171/PO174. I find some engine oil at the bolt well of the valve cover on the bank 2 side. Can the vacuum leak come from the valve cover? What is the main function of the valve cover? Thanks.: First of all no. And. Second of all, to cover the valves. Little oil tubes come up to the rockers and lubricate them and the rods, springs, valve guides, top of valves. If you did not have covers than oil will spray all over engine compartment.

Q: I have a Chevy Silverado 2500 5.7L V8. I have been having problems with passing smog. First one failed because it needed a new cat. Replaced it and tested again. NOx emissions are off the chart (1450/1006 max of 992/59615/25mph). I replaced the EGR valve based on a suggestion. Quick test today said the NOx emissions are still way off. Suggested that I change the EGR solenoid valve and also pull the EGR valve and use a coat hanger to clean some of the carbon build up. I purchased a new solenoid today but looking at it I noticed something. Since there are what are appear to be two ports on one side of the solenoid, I must have replaced the vacuum hose onto the wrong one after replacing the EGR valve. How much would this make a difference on the test readings taken? Would it be beneficial to just replace the solenoid anyway or try to test again with the current one but connected properly?: This Site Might Help You. RE: What would happen if the EGR solenoid valve isn't connected properly? I have a Chevy Silverado 2500 5.7L V8. I have been having problems with passing smog. First one failed because it needed a new cat. Replaced it and tested again. NOx emissions are off the chart (1450/1006 max of 992/59615/25mph). I replaced the EGR valve based on a suggestion. Quick test today...

Q: i got a filler neck for my dodge dakota and was wondering how to put it on. can anyone send me a link or help me. and also what does my EGR valve look like and i cant seem to find a new one not even at the dealer. i was told to clean it how do i do this. can someone send me a link or pic what it look like. thanks: The VECI decal map under your hodd will show you EXACTLY where your EGR valve is. You may need a magnifying glass. The valve can be removed and cleaned with Gum-out or foaming cleaner (amsoil). When you are done, re-install the valve. While you are getting ambitious, clean your throttle body and plate, and the IDLE AIR CONTROL VALVE. A dirty IAC is the most prominant reason for the EGR valve to clog up. Running Gum-out through your intake system will clean out your O2 sensors, as well. Good luck!!

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