Butterfly Valve DN200 Wafer Type BS Standard
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- 1 set
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- 5000 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. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve.
2.Main Features of the Manual Wafer Butterfly Valve
1.Square and short neck. Easy to stick scutcheon and cost saving.Nominal bore mm 20 25 32 40 50 65 80 100 125 150 200
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
7. Flow characteristic: equal percentage, linearity
8. Leakage: single-base valve: 0.01* rating Kv
9. double-base valve, sleeve valve: 0.5%* rating Kv
10.Cast hole. Flange connection meet ANSI 125/150# DIN PN10/16 BS4504 PN10/16 in the meanwhile.
11.Soft seat. Replaceable. Increase of service life.
12.Double half shaft without pin.
3. Manual Wafer Butterfly Valve Images：
4.Manual Wafer Butterfly Valve Specification： 
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. How about the Installation of the Wafer Style Butterfly Valve?
A: Butterfly valves are installed by inserting the valve between two flanges using bolts or studs and nuts to hold it all together. This type of installation, of course, makes it impossible to disconnect just one side of the piping system from the valve. That benefit is received using the lug style valve.
3. 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 just found out about my condition. Is it dangerous? And will I need surgery? My mom just got her monocuspid valve replaced. I don't wanna have to go through the same thing. And will I still be able to go on rollercoasters? I'm going to cedar point tomorrow. I only want answers from people who know exactly what there talking about thanks
- so, as you already know, a typical aortic valve has three cusps. yours has two, so this is a structural issue. the point of these cusps, or leaflets, is to maintain blood flow in the appropriate direction through the heart and to the rest of the body. having a bicuspid aortic valve can be something that you inherit from one of your parents. did you have a murmur that prompted them to look for it? if your valves are young and healthy, there's probably not a problem. when it can become problematic is with age, where the leaflets can become calcified and hard, then they can not open as well (i.e. become stenotic), or not close properly (i.e. become regurgitant). if either of these two things develops, and becomes bad enough, they consider valve replacement surgery. but this is the kind of stuff that happens over years and years. you should see a cardiologist, if you haven't already been referred to one, because this is a medical condition that gets watched over time, and then if it gets bad, it gets treated. while it's not bad, it gets watched. this cardiologist will follow you over time, in addition to your regular family physician. he/she will also be keeping an eye on your aorta (the big vessel that blood enters after it goes through the aortic valve), because sometimes people who have bicuspid aortic valves also have problems with your aorta. i would also talk to your cardiologist about whether or not you need to take antibiotics in advance (i.e. prophylactically) of any dental work. i.e. because of your valve with a different shape, are you more predisposed than the average person to getting an infection there. but go to cedar point if you're young and healthy. a roller coaster should not give you any sort of problems. enjoy yourself!
- Q:The valves on our 2005 Pontiac Sunfire are bent and need fixing. Any idea of how much it might cost to have them fixed at a shop? Any estimates?
- Most mechanics will put on a rebuilt head -- if you were to buy it, they cost approx $350 for the head assembly.
- 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?
- Depends on the vehicle, most cars may run rough, sluggish, some wont even run, every car is different on how much actual vacuum is running through the pcv valve that will determine if its drivable. Run it for a minute..drive it around the block make sure it wont die...then take to the shop.
- Q:I am looking for a full valve guitar amp for around ?300.It needs to be loud enough to play with a quietish drum kit.Currently i have looked at an epiphone valve senior in both and combo and cab and head form. i have also looked at some smaller amps such as the vox ac4 but am a bit worried about its small size. any advice would be greatly welcome. many thanks in advance.
- Well I have the Valve Jr. and the AC4. The AC4 is a good sounding amp, but even though it is only 1 watt less, the Valve Jr. is much louder. The AC4 is a great practice amp but not enough to jam with a drummer unless he is pretty quiet and you really crank the amp. Never heard one of the new Valve Sr. models but with all of the goodies they added it should sound really good. I had my Jr. modified but it still doesn't have all the cool stuff the Senior has. I think you would really like the Epiphone and at 20 watts you will be more than loud enough. My 5 watt Jr. will get very loud. All I own are low watt class A valve amps, it's the only way to fly!! The Marshall Class 5 might be worth looking at also.
- Q:I got an engine knock and backifiring and no power not even to move the car just a few feet. I figured its the vales that are eather broken or burned out. I just started to take my top end apart to check and change borken or damaged valves so i can drive the car once again. My question is, when i take the valve cover off i can see what looks like the valves and the springs and something in the middle of the springs, now what iam i gona be looking at for a broken/damaged valve since i dont see any obvious damages but i could be wrong.
- Bad valves won't cause the problem you're describing. This is something you need to have a mechanic look at. It sounds to me like you may have an issue with a timing chain or timing belt that has jumped or it's possible that you've got a blown head gasket between a couple of cylinders. There are other possibilities too, most of them not very good. Unless you know what you're looking for, you won't be able to diagnose this yourself.
- Q:how to adjust the valves on a 20 horse power briggs and stratton engine on a sears craftman rideing mower model number 917.276824
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- Q:I'm 16 and I have a Minor Heart Valve leak, I have to take pills every time I have dental work done, and my aunt said something about maybe looking at surgery. Is it really anything to worry about? is surgery something i should really look at? and are pills really necessary?
- pass the universal care wellbeing practitioner and bypass as we communicate to a coronary heart expert who will do a coronary heart sonogram and run different attempt and for this reason might have the means to deal including your matters handy. I even have Mitral Valve Prolapse and that i in basic terms knew this with the aid of a coronary heart sonogram.
- Q:I have a 2000 Ford Explorer sport(2wd). I live in the Fort worth,Tx area. What would be a resonable price to have this valve changed out with a new one(valve labor)?
- 3hours / labor 100.00/ hour plus 199.99 parts 600.00 otta cover
- Q:My husband went to the doctor today, then called to say he won't be coming home because he has infective endocarditis. They sent him to another, larger, hospital in the region. Hours later he called and said that he needs surgery on the valve and they are moving him to another part of the country. I've been trying to read about it but I'm not sure I understand. What I've read says that they have to treat the infection with penicillin first, the he can have surgery. However, he's telling me he might have surgery when he get to the other hospital. He needs a new valve. Does this mean that his condition is worse than those I've read about or that they are simply doing things differently? Also, if you know. Does other illnesses make the risks much higher? He's got aspergillus in his lungs and have had 2/3 of the lungs removed. He has an immune deficiency (HIES) and he is physically weak from being sick. I know it's not good, but how bad is it?
- Infectious endocarditis. Of course, any endocarditis is an infection. Rather like saying an 'infectious cold.' You will need to discuss this with his doctor to get good information. That means you go where he is. If you need to you make an appointment with the doctor at his office to find out. No way to know what kind of heart value issue he has or what other kind of heart condition he has.
- Q:Ok, so I was just wondering, do you have to have a turbo to get blow-off valves? Also, do you have to have a manual? And are there any other requirements?
- A blow off valve releases the excess pressure from your forced induction system when you close the throttle plate. It prevents turbo surge. If you install one on your naturally aspirated vehicle, all it will do is get you laughed at. As for the manual, READ IT! Blow off valves have nothing to do with the transmission, so automatic or manual, makes no difference. Word of advise: Don't work on or modify your car. You'll make it slower at the very least.
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Butterfly Valve DN200 Wafer Type BS Standard
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 5000 set/month
OKorder Service Pledge
OKorder Financial Service
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