Butterfly Valve Stainless Steel Threaded Directional Made in China on Sale

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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. 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 Manual Wafer Butterfly Valve 

a)Cast hole. Flange connection meet ANSI 125/150#   DIN PN10/16   BS4504 PN10/16 in the meanwhile.

 

b)Soft seat. Replaceable. Increase of service life.

 

c)Double half shaft without pin.

 

d) Square and short neck. Easy to stick scutcheon and cost saving.

 

3. Manual Wafer Butterfly Valve Images

 

Butterfly Valve Stainless Steel Threaded Directional Made in China on Sale

Butterfly Valve Stainless Steel Threaded Directional Made in China on Sale

 

4.Manual Wafer Butterfly Valve  Specification

 

 

Butterfly Valve Stainless Steel Threaded Directional Made in China on Sale 

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.

 

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Q:Which brand of electric valve is good?
The electric actuator imports now commonly used with Omar, Rotok, SIEMENS, you should still work to decide which Denso, such as regulating type? Switch mode? Intelligent? Regular type? There are valves can choose some well-known brands
Q:How to use current to control valve opening and closing?
Switching type (one on and off)Block digital display with the upper and lower limit control valve opening and closing is goodProbably more than 100Regulating type (to keep temperature at a constant value)With PID valve position regulator can be very good controlAbout 300 more
Q:What is the purpose of the valve?
Valve is a pipe accessory. It is a device used to change the direction of the passage and the direction of the medium flow, and to control the flow of the conveying medium.Valves have the following uses:1. Connect or cut off the medium in the pipe. Such as gate valve, globe valve, ball valve, plug valve, diaphragm valve, butterfly valve and so on.2 、 adjust and control the flow and pressure of the medium in the pipeline. Such as throttle, control valve, pressure reducing valve, safety valve, etc..
Q:Comparison of foreign valves, such as Jiang Sen, SIEMENS, Honeywell, Watts, Tyco valves?
Watts is the origin of industrial water valve, after so many years of development, the current air-conditioning, water supply and drainage, fire, general valve Liwoci is most commonly used, compared with the best foreign brands.
Q:What is the valve?
The definition of a valve "valve" is defined in the fluid system, used to control the direction of the fluid, pressure, flow device. A valve is a device that flows or stops the medium (liquid, gas, powder) in a pipe and equipment and controls its flow. Valve is the control component of pipeline fluid transportation system. It is used to change the passage section and medium flow direction, and has the functions of diversion, cut-off, adjustment, throttling, check, diversion or overflow, pressure relief, etc.. For fluid control valves, valve from the simplest to the most various valves automatic control system used in complex, its many varieties and specifications, the valve nominal diameter from industrial piping and instrumentation valves tiny tolarge diameter 10m valve. The valve can be used for the control of water, steam, oil, gas, mud, all kinds of corrosive medium, liquid metal and radioactive fluid and other types of fluid flow, the valve working pressure from 0.0013MPa to 1000MPa ultra high pressure, working temperature from ultra low temperature to high temperature of 1430 DEG -269. Control valve can be a variety of transmission methods, such as manual, electric, hydraulic, pneumatic, worm gear, electromagnetic dynamic, electromagnetic hydraulic, electric hydraulic, pneumatic and hydraulic, gear, bevel gear drive; in pressure, temperature or other forms of sensor signals under the action according to the requirements. Or do not rely on a simple sensor signals to open or close the valve on the drive or automatic mechanism to make the opening and closing parts for lifting, sliding, rotating or turning motion, thus changing the size of the flow area to achieve its control function.
Q:What are the most common types of valves?
From the controllable and uncontrollable division (personal opinions, according to our factory valves used to explain)1. hand operated: gate valve, globe valve, ball valve.2. control: single seat valve, two seat valve, ball valve (O ball, V ball), eccentric rotary valve, butterfly valve, diaphragm valve
Q:How does the valve rust die?
Go to the hardware store to buy derusting lubricant, W40 is fine.
Q:Mechanical valve
Tiemuyu666, let's go inside and see if there's anything we need. For reference only
Q:What's the caliber of the valve 1/4?
1 inches is equal to 25.4mm, 1/4 how big, count it yourself.
Q:What is valve packing used for?
Valve packing in the valve under the gland to prevent leakage, you can use ordinary asbestos rope and butter emergency replacement

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