Butterfly Valves Ductile Iron Wafer Type DN550

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100 set
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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.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. A butterfly valve consists of body ,stem ,disc , actuator (manual actuator, worm-gear actuator , aerodynamic actuator or electric actuator) , and wafer type butterfly valve can implement the process for turning on turning off and regulating the flow by the circumrotation of stem and disc  that is droved by actuators.
2.Main Features of the Manual Wafer Butterfly Valve 

Quick 90 degrees on-off operation. Minimized operating torque ,energy saving.
Excellent sealing performance with no leakage. Long service life.
Wide selection of materials ,applicable for various media..

Working Temperature : -45 C centigrade-+200C centigrade

Suitable Mediums :  Fresh water, Sewage, Sea water, Air, Oils, Acids, Alkalis, Salts, etc.

3. Manual Wafer Butterfly Valve Images

 Butterfly Valves Ductile Iron Wafer Type DN550

4.Manual Wafer Butterfly Valve  Specification 

Butterfly Valves Ductile Iron Wafer Type DN550

  5.FAQ

1. 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. 

 

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.

 

 

 

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Q:What is the national standard for clip butterfly valves?
GB/T 12238-2008 "flange and clip connection elastic seal butterfly valve"GB/T 26144-2010 flanged and clip on steel lined fluoroplastic butterfly valvesJB/T 8527-1997 "metal sealed butterfly valve"
Q:Who can give me a download UG butterfly valve, needle valve, diaphragm valve standard model address, Japanese standard, American Standard.
Support many 3D CAD format, such as the commonly used UG, Pro/E, SolidWorks......As for the butterfly you said, don't post the link up, the standard JIS, American Standard ANSI, German standard DIN are.You use Baidu Search "LinkAble PARTcommunity", after the open registration, CAD format, such as UG, ASAHI and then to find the manufacturer home page, which is the valve, you said the Japanese standard, German standard, American Standard valve basically all.
Q:What does butterfly valve do?
5, connections are flanged, wafer connections, welded connections and lugs on the clip connection.  Drive in the form of manual, worm gear, electric, pneumatic, hydraulic, electro-hydraulic linkage actuator, can realize remote control and automation.Advantages of butterfly valves1, opening and closing convenient, fast and labor-saving, fluid resistance is small, you can often operate.  2, simple structure, small volume, light weight.  3, to transport slurry, accumulation of fluid in the pipe outlet at least.  4, under low pressure, can achieve a good seal.  5, good regulating performance.Disadvantages of butterfly valve1, use pressure and working temperature range is small.  2, poor sealing.  Butterfly structure can be divided according to the bias plate, vertical plate, inclined plate and lever type. According to the form of sealing can be divided into soft sealing type and hard sealing type of two. The soft sealing type usually adopts rubber ring seal, and the hard sealing type usually adopts metal ring seal.  By connection type can be divided into flange and clamp connections; press can be divided into manual transmission, gear transmission, pneumatic, hydraulic and electric types.
Q:What is the principle of butterfly valve and check valve? Any difference?
Crown valve pressButterfly valve is butterfly valveThe check valve is a check valveButterfly valve is mainly switching functionThe check valve mainly stops the pipe from flowing backwardsThe two can only be said to be valvesThe others are different
Q:Model specification for butterfly valves
Various classifications of butterfly valves1. classification by structure:(1) Central sealed butterfly valve(2) single eccentric sealed coal valve;(3) double eccentric sealed butterfly valve(4) three eccentric sealed stamp valve;
Q:D37A1X9-16CB1: what does this butterfly valve mean?
The model is composed of 7 units, the types of valves (gate valve Z, J, L, Q ball valve, throttle valve, check valve and H valve, butterfly valve, connection mode (D) internal thread 1 thread 2, welding flange 4, 6, 7, the clamp (0) electromagnetic transmission mode 1 solenoid valve, hydraulic, electric and hydraulic turbine are 2, 3, 4 and 5 gears, bevel gear, pneumatic hydraulic, 6, 7, 8, 9) pneumatic and hydraulic, electric, structure (straight or DC type 7,1 on behalf of the center plate, vertical type A (A) and LT X9) on behalf of a sealant is heat-resistant rubber, kg 16 kg, C represents the body material of carbon steel WCB, B1 on behalf of the valve plate is made of ductile cast iron plating)
Q:The difference between vertical and horizontal butterfly valves in municipal water supply
The general municipal water supply butterfly valve is mainly vertical installation, mainly due to underground pipe network, vertical drive device in the upper, easy to operate, and installation of smaller wells;Horizontal, usually large diameter butterfly valve, usually used in the main network, often open, not easy to collect slag.
Q:Which is better, the round two lobe butterfly valve?
The company has advanced sheet metal CNC processing line, strong technical force and strong production capacity. At present, the main products are: air outlet, air valve, muffler, fire damper, static pressure box, wind box, etc.. Especially round type double butterfly butterfly valve has obvious advantages.
Q:What is the working principle of the electric butterfly valve, and what's the difference between the butterfly valve and the butterfly valve?
What's the difference between a worm valve and a manual butterfly valve?The turbine can light and close the valve here. It is more labor-saving and reliable. It is closed and open. Manual operation is relatively difficult, but the manual action is very fast. Fast switching.
Q:What is an electric two position butterfly valve?
Answer for you:Shanghai Huquan electric valve manufacturer of electric double position butterfly valve this product is connected with the flange clamp. Material: cast iron, carbon steel, stainless steel, 304/316Product overviewElectric double position butterfly valve (soft seal) is suitable for temperature less than 200 DEG C, adjust the flux and closure of the role of the medium nominal pressure is less than 1.6MPa of food, medicine, chemical, petroleum, electric power, textile, papermaking, water supply and drainage, gas pipeline.main features1., the design is novel and reasonable, unique structure, light weight, fast opening and closing.2., small operation torque, easy operation, labor-saving and smart.3. can be installed in any location, easy maintenance.4., seals can be replaced, sealing performance is reliable, to achieve two-way sealing, zero leakage.5., sealing material aging resistance, corrosion resistance, long service life and so on.Electric double position butterfly valve adopts standardDesign standard: gb/T12238-1889Flange connection size: gb/T9113.1-2000; GB/T9115.1-2000; jb78Structure length: gb/T12221-1889Pressure test: gb/T13927-1992; jb/T9092-1999

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