ISO Standard Eccentric Double Flanged Rubber Seal Butterfly Valve
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 set
- Supply Capability:
- 50 set/month
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1. 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. Rotating the actuator turns the disc either parallel or perpendicular to the flow. 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 Butterfly Valve
(1) 90° movement for full open/close position.
(2) Excellent control characteristics.Tight shut-off even after innumerable operations.
(3) Installation cost considerably reduced because of very low weight and compact design.
(4) Longer life and reliable service with minimum component wear.
(5) Renewable seats. No supplementary gasket required with the adjacent pipework.
(6) Body & Stem totally protected from service fluid.
3. Butterfly Valve Images:
4.Butterfly Valve Specification:
BODY | DISC | STEM | SEAT | BUSHING | |
MATERIAL | WORKING PRESSURE | ||||
CAST IRON | DUCTILE IRON WITH NICKEL PLATED | CARBON STEEL | NR | -20-+85 | LUBRIZED BRONZE |
DUCTILE IRON | ALUMINUM BRONZE | STAINLESS | HYPALON | -18-+135 INSTANTANEOUS -18-+149 | PTFE |
ALUMINUM | STAINLESS STEEL | EPDM | -45-+135 INSTANTANEOUS -50-+150 | ||
CARBON STEEL | CARBON | NEOPRENE | -7-+193 INSTANTANEOUS -7-+107 | ||
STAINLESS STEEL | NBR | -12-+82 INSTANTANEOUS -12-+93 | |||
WEAR-RESISTANT RUBBER | -10-+50 | ||||
VITON | -23-+150 | ||||
HEAT-RESISTANT RUBBER | -20-+150 | ||||
PTFE | +10-+150 |
5.FAQ
1. What is manual wafer butterfly valve?
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?
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 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: The plastic nuts which attach to the sink are plastic, and when I try to take them off with a basin wrench then pieces just snap off.
- remember as you are working upside down lefty loosy is not right , it is the reverse I have learnt this by experience
- Q: My kitchen faucet got broken, so i am trying to replace it with a new faucet. But here is my problem. I CANNOT uninstall the old faucet!!!! The main screw that holds the old faucet got rusty and the space around the screw is so little, I cannot uninstall it. It is so tight and it doesn't come out....I feel like if I continue trying, it may totally ruin the screw and it may never come out...Is there any advice for that? Pls help me!!!!
- SomeTimes a hack saw is a plumbers best friend, other times the bald alone is.
- Q: Three-hole basin and single-hole basin can be installed single hole faucet it
- Must not, three holes of the small aperture, single hole aperture.
- Q: Amoy cake basin into the water hole size. The hole in which the faucet is installed
- Hot and cold single hole kitchen faucet hole size is 35mm, single cold kitchen faucet hole size is 25mm
- Q: I've recently seen two movies where they show a sink with two faucets. One on each end of the basin. I'd never seen such a thing. Is one hot and one cold or what? Isn't that a little inconvenient if you want warm?
- Yes, one is hot and one is cold. These were popular in the 30's, 40's, and even the 50's. It allowed sink manufacturers to only have one style of faucet. It was cheaper. The single handle faucet you have now was not around at that time, so to get a mix you needed a hot valve, a cold valve, more plumbing, and a faucet. CHEAPER is the answer.
- Q: Is it possible to have two faucets in the dish?
- Two are used to install the faucet, my home is the double pool.
- Q: A few days ago to the home of the kitchen faucet for a new, but after the change of the problem came, in the faucet and pots connected after the discovery of the tap base and pots connected is not strong, always able to turn, and later found The bottom of the fixed nut is loose, you want to tighten some of the metal gasket are squeezed and can not be fixed (metal gasket is a single hole screw).
- In the middle of the two studs with a few large nuts on the tightened
- Q: Please use details. I am wanting to change my faucets. I'm okay with doing things myself so, I thought to install it on my own. Help, please, with the removal and installation. Thanks.
- There is also a video on this site (I think it's on the second page)
- Q: Nine animal husbandry and a single hole hot and cold faucet installation aperture is generally how much
- Are the same, uniform standard 32-34mm (all interchangeable) faucet is the popular title of the water valve, used to control the size of the water switch, a water-saving effect. The replacement of the faucet is very fast, from the development of old cast iron to the electroplating knob, and the development of stainless steel single temperature single control faucet, stainless steel dual temperature dual control faucet, kitchen semi-automatic faucet. Now, more and more consumers to buy taps, will be from the material, function, modeling and other aspects to consider.
- Q: My house a water pipe out of the water is very small, but other (for example, the toilet) in the water is the normal tripod feet to catch the non-non-stone wear, that is, the water pipe is small, how is this going on? Today we The unit in the repair pipeline, clean up the septic tank. Now finished, will this be the reason?
- Is it not the faucet outlet that is blocked by the sand. Remove it and clean it up.
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ISO Standard Eccentric Double Flanged Rubber Seal Butterfly Valve
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 set
- Supply Capability:
- 50 set/month
OKorder Service Pledge
OKorder Financial Service
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