Butterfly Valve Central Line Design Lug Type
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 10000 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: I want to switch off the water in the bathroom only due to replacing sink taps, will water still come out of the pipe if i turn the stop valve
- Only water what is still in the pipes will come out but you will lose all your hot water in the hot water cistern if you have that type of hot water storage tank.
- Q: How much is the Honeywell butterfly DN300?
- Find the agent or find a reliable valve plant a lot of foreign brands are in Chinese OEM so find a reliable factory is relatively good service to keep up
- Q: Are fire fighting signal valves and signal butterfly valves the same thing?
- The same nature: both can open and close, there is also information back fed.Signal valves are collectively referred to as signal butterfly valves.
- Q: How is the lug butterfly valve connected to the flange?
- It is clip type butterfly valve.Connection way is to use butterfly flange flange.The sealing surfaces at the ends of the two rubber sealing rings are respectively butted with the welded flanges welded on the pipe; the two headed screws and the nuts are used for fastening.
- Q: How do hydraulic butterfly valves work?
- Butterfly valve hydraulic drive device working principle1. manual operationWhen the hydraulic system suddenly fails, the valve can not move when the butterfly plate at any stop. Then, shaking the manual device, the guide block guide block in front of the manual shaft together with the driving shaft end, the cogging and drive shaft spline manual corresponding to the slot. Then, by dialing the driving device, the dial is shifted to the left end, and the transmission spline is connected with the manual shaft by a gear sleeve (the driving device is provided with a limit for preventing the tooth sleeve from jumping up), and the crank is disengaged from the hydraulic cylinder to disengage the hydraulic cylinder. Then turn the manual device and use the manual device to realize the disc movement.2. hydraulic operationWhen the hydraulic system returns to normal operation, the actuating device needs to be operated by hand. First, adjust the hydraulic cylinder to its initial state (0 digits) or at any position. Then manually adjust the opening of the disc to the position corresponding to the cylinder stroke (by observing whether the mark on the gear sleeve is in accordance with the mark on the crank, and judge the position of the disc and the cylinder). Then pull the gear sleeve and engage the spline on the crank by poking the driving device. Then fix the shift to prevent jumping. At this point, start the hydraulic system to restore fluid flow.
- Q: For example, the arrow above is from left to right, and the direction of my current is from right to left. Is that ok? I have a diameter of 700 of the hard seal butterfly valve is so installed, but it will leak water, it will not leak, very serious
- From the above example, it can be concluded that the arrow direction of the butterfly valve body refers to the direction of the pressure of the medium. Before the installation, the user must know the direction of the pressure of the valve after the valve is closed. The direction of the arrow of the free valve body is in accordance with the direction of the pressure of the medium, so that the correct use can be achieved, and the tightness of the valve body is kept in good condition.
- Q: What kind of butterfly valve is sd342x?
- Sd342x: two-way double eccentric soft sealing butterfly valveS: two way pressureD: butterfly valve3: turbine operation4: flange connection2: double eccentricX: rubber sealProbably the shape is not so good in appearance,Double eccentric mostly elastic sealThree eccentric is multi-layer sealHope to be of help to youOpened valve Co., Ltd. on the production of butterfly valve
- Q: What's the difference between an electric two position control valve and an electric butterfly valve?
- The electric butterfly valve belongs to a kind of electric valve and electric control valve. The main connection modes of electric butterfly valve are flange type and clip type. The main forms of electric butterfly valve are rubber seal and metal seal. The electric butterfly valve controls the switch of the butterfly valve through the power signal. The product can be used as the shut-off valve, control valve and check valve of the piping system.
- Q: can't locate freon intake valve for 03 jaguar an was wondering were it is located at
- Most manufacturers put the fill nozzle on the hoses, either the high or/and the low side. Also, the low side can be found on the accumulator.
- Q: Butterfly valve is generally used in what position?
- Butterfly valve used in furnace, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, environmental protection, chemical smelting and power building water supply and drainage engineering system in conveying a variety of corrosive and non corrosive media pipeline, used to adjust and cut off the media flow.
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Butterfly Valve Central Line Design Lug Type
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 10000 set/month
OKorder Service Pledge
OKorder Financial Service
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