Butterfly Valve DN700 Turbine Type with Hand wheel 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. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.
2.Main Features of the Manual Wafer Butterfly Valve
1.Simple and compact construction. Small in size and light in weight. Easy transportation, installation and maintenance.
2. Quick 90 degrees on-off operation. Minimized operating torque ,energy saving.
3. Excellent sealing performance with no leakage. Long service life.
4. Wide selection of materials ,applicable for various media..
5. Flow curve tending to straight line. Excellent regulation performance.
6. Long service life, standing the test of tens of thousands opening/closing operations
7. Bubbles-tight sealing with no leakage under the pressure test
3. Manual Wafer Butterfly Valve Images：
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 |
Stem: | 410/416/304/431/17-4PH/316/monel |
Seat: | NBR/Hypalon/EPDM/Neoprene/NR/Wear-Resistant EPDM/Viton/Silicon/Heat-Resistant EPDM/White EPDM/EPDM(NSF)/PTFE |
Suitable temperature: | -10~120 |
Medium: | Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc. |
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 recently converted my furnace from l.p. gas to natural gas. It's been maybe two weeks of me troubleshooting and replacing. I have a new gas valve and transformer in the furnace. There is 24v running to the valve and it clicks to open but no gas comes out. I have exhausted all my options with the mechanical/electrical components on the furnace. I have bled the valve to be sure that there was gas making it to the inlet side. Does anyone have an idea as to why the valve stopped opening once I converted it over?
- I realize this is probably a dumb question, but it has to be asked, just so everyone else won't have to wonder. Are you dead sure you put the valve on in the right direction? I'm not a certified furnace installer or repair person, so I don't actually know if it's even possible to put a valve on backwards, so, the question. It certainly sounds like you've done everything that could be done, other than to take the valve off and try getting it to open while it's off. If it's opening, it should do it on a bench, with 24 volts going to it. You may have to take the transformer with it to be sure, and actually look up in the holes to see if you can spot the flap opening up for the gas to flow. You haven't mentioned a pilot at all, so I have to wonder if this is an igniter type system? That would be my methodology of checking the valve and the transformer. If you can get it to open on the bench, then it certainly should open in place.
- Q:this valve used in the refinery.
- This is a 'Trip and Throttle' (T T) valve that is maintained in a 'Fully Open' postion during normal turbine operation. It is maintained open by a Hydraulic Control system that, should any of many shutdown conditions occur, the hydraulic oil will be dumped to its reservoir by the operation of a Solenoid valve, actuated by the shutdown signal, and the T T valve will immediately close, stopping the steam flow to the turbine speed control steam chest in a safe manner. The valve handwheel is then operated to ensure that the valve remains fully closed until the system is ready for re-start. The valve cannot be opened again until the shutdown condition has been rectified and the hydraulic system reset to restore the oil pressure to the valve. The valve however, can then only be re-opened manually and slowly until the turbine is brought to the 'Minimum Speed Control' Governor setting. When settled down at this condition and the steam chest valves are under the control of the Governor, the T T valve is swung wide open. This latches the valve in the fully open position until another shut down occurs,
- Q:I want to find a cheap valve that will let me take a breath in from one place then exhale through a tube going out so that i can attach an airbag to the breathing end and make a little diving lung.
- What your looking for is a check valve. Home Depot Be careful, very careful!
- Q:Hi My sons car has alloy wheels, and metal valve stems, there is a tiny leak between the valve stam and the alloy on one wheel, we are struggling to get anyone to repair at a reasonable cost. Would tyre weld make a permanent repair?. Some tyre specialists won't touch the wheel, one other wants to drill out the stem put in another, which sounds a bit drastic. Any other ideas?, is it feasible to get the metal valve stem replaced by a rubber version?. Apparently the metal ones get curbed and then start to leak.
- The leak is caused by corrosion of the alloy wheel in the hole that the metal valve stem goes through. You might try to let the air out and loosen the nut on the valve stem and spray penetrating oil on the o-ring which is on the base of the valve stem and is what holds the air in. Turn the stem back and forth a bit to mave the corrosion and then respray the o-ring. Tighten the stem nut, inflate the tire to 35 lbs. and spray a bit of soapy water on the stem to check for leaks. If it still leaks you will need to remove the tire and valve stem,clean the hole and surrounding area inside the rim and clean the valve stem and replace the o-ring. If the valve stem is a pressure sensor type for the tire air pressure monitoring system you may need to reprogram it. Only use plastic caps on the valve stem. Metal ones corrode on the stem and wreck them and never come off.
- Q:I want to change a stuck pcv valve on my 86 toyota pickup 22RE. I've used tons of lube and picked away at the grommet but i still can't get it out. Any advice?
- the grommet is being replaced so do what you have to to get the valve out. id grab a hold with a pair of pliers and go that route.
- Q:My chevy s-10 pickup automatic is shifting rough from 1st to 2nd, gives the truck a bump when shifts. Tech says I likely need a valve body replacement. He also indicated I could drive this for a while if I wanted. What more can happen if I prolong replacement? Truck is still at a fair blue book value and I'm wondering if I should sell it now. I have been very lucky in not having to sink any $ aside from normal wear and tear into it, so for me to have it replaced is the first $ investment. I have 103k miles for 2000. Anyone else in a sim sitch, or having multiple problems at this mileage as well? I'm wondering if this is the begininng of the end?
- Usually on the side of the transmission is the modulator but if it is inside like said, make sure you don't open the valve body. Things will fall out and you'll curse yourself.
- Q:Is it supposed to go on or only in cases when the power goes out??? I bought this pump and the directions are horrible!!! There isn't room for both the air stone and the check valve!! How does this stupid thing work???
- Keep okorder /
- Q:Ok. I have to ask cause I have been in hospital all weekend after having a moment on saturday when my heart decided to start racing. Woke up 4.30am on saturday morning cause of blood test which kinda showed I could have had a heart attack which was scarey and though I was discharged today I got told I had a leaking aortic valve. What does this mean and what is going to happen. I am honestly really worried cause it cant be good
- The valves of your heart valve are not closing properly. Very common thing. May or may not require surgery. May or may not be related to you having a fast heart beat. Ask your dr to tell you what the racing heart was about. They would have a record if it was significant. Or your doctor may want you to wear a monitor for 1-2 days to help to catch this so it can be identified.
- Q:When my son was three I switched Dr's for him. The new doctor said has he always had a heart murmur I said no that's the first I've heard of it so we went for test. Anyway heart specialist did all tests said my son had Bav a valve disorder in the heart. He said it is very common. However everyone I've ever talked to has never heard of it. My question is does anyone have this what is your story and have you had to have your valve replaced. My son is very healthy active I'm just worried. Any help would be greatly appreciated....thank you!!
- it is a common cause of murmurs in children, and ordinarily they grow out of it, you can relax.
- Q:My boyfriend just went to his heart doctor and his tricuspid valve is leaking because of his pacemaker wire. They are saying that its moderate to severe. We are trying to decide on what moderate to severe really means. They said the same thing when he was at the doctors in June.
- if actuality be told whilst your valves close, there is a few returned pass instead of all your blood being pushed forward.. gentle regurgitation often does not reason challenge, yet you may get regarded at each year to visual show unit if it gets worse or no longer. you does no longer ought to get valve replace surgical technique till it extremely is reasonable to severe. if so, you will have the flexibility to observe with the aid of fact it could reason shortness of breath and because your blood pass isn't optimized.
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Butterfly Valve DN700 Turbine Type with Hand wheel 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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