ISO Standard Eccentric Double Flanged Rubber Seal Butterfly Valve
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- 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:How did your faucet get the water fast? Can you tell me?
- There is a bubbler in the mouth of the mouth, you twist it down, the bubbler inside the debris can be cleaned.
- Q:Home with a gas water heater
- Kitchen faucet with a single handle single control, generally only cold water single water. Single handle double control, hot water, cold water and 紶 碃 official pull down regulatory right sea protection hot and cold mixed water control function. There is also a double handle dual control, the same function and single handle double control
- Q:The basin of the basin of hot water pipe is broken, how to replace
- There are 1 or 2 nuts to the faucet fixed in the face plate, from the basin and the table gap can touch the nut, with a wrench loose nut, you can pull out the faucet. Look at the photo, the basin behind the activities of the space is very small, more difficult to remove the nut. Face plate is generally glass adhesive on the table, the demolition of more difficult to restore.
- Q:Faucet outlet of the filter how to take down
- Clamp the outlet of the place, in the opposite direction twist on it
- Q:Basin faucet size how much more appropriate?
- If it is on the stage pots, choose wall-mounted faucet or high basin basin faucet, if it is under the basin, the basin faucet selection on the flexible little, short feet, tall, wall-style can choose
- Q:Kitchen faucet hot water small flow can not start the water heater, cold water normal. There is no clogging. Toilet water normal, how is the problem where the solution?
- Obviously the kitchen side with more hot water, hot water pipe scale caused by clogging. Water heater heat transfer surface temperature is very high, there will be scale when the water flow occurs, lazy for rough good neo spring stubble long sickle time is long, there will be a lot of scale attached to the surface of the heat exchanger, resulting in decreased heating performance, Resulting in hot water pipe blockage, it will cause the hot water to become smaller (seemingly small water pressure phenomenon), the hot water time longer and so on.It is recommended to clean the first cleaning, online shopping a gas water heater to remove the scale, Use it to the water heater into the cleaning agent to clean the inside of the water heater can be solved, easy to operate, with it after regular cleaning, when to avoid the recurrence of this problem. Many people have used, real and effective
- Q:Can the basin faucet hot and cold water pipe be replaced?
- Yes, the following two tubes removed, go to the hardware store matching on the line, because do not know is the tip of the tube or two
- Q:How to handle the faucet handle at home?
- These two faucet handles can be replaced.
- Q:Toilet shower normal water, sitting to the water is normal, that is, shower faucet and basin faucet drip, water is very small, the solution?
- The water is very small, because it is the mouth of the mouth of the bubbler blocked, the faucet removed under the cleaning like, 2 minutes to get.
- Q:With the basin under the basin to pay attention to what?
- Pocket of the ocean, thousands to hundreds of thousands have, do their best
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ISO Standard Eccentric Double Flanged Rubber Seal Butterfly Valve
- Ref Price:
-
- 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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