Butterfly Valve Stainless Steel Threaded Directional on Sale Made in China

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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 on Sale Made in China

Butterfly Valve Stainless Steel Threaded Directional on Sale Made in China


4.Manual Wafer Butterfly Valve  Specification


 Butterfly Valve Stainless Steel Threaded Directional on Sale Made in China




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:Valve pressure grade division
Nominal pressure PN is less than 1.6Mpa valve is low pressure valve, nominal pressure PN2.5 - 6.4MPa valve is the pressure valve, nominal pressure PN10.0 - 80.0MPa valve high pressure valve.
Q:Automatic exhaust valve installed in the pipe before and after the installation of other valves need to press it?
In general, the exhaust valve (large diameter) and a maintenance valve, normally open,
Q:What do letters represent in the QF-2 and PX-32 valve models?
This is the material code, specific check: valve code. Just OK
Q:Dalian hi Max Valve Co., Ltd.
I have some of them in the series of drawings.Build said veteran enterprises is the main power station valve company opened high pressure valve Wenzhou world Gansu Shenyang Nantong Shen Langao high power of Dalian is still high in alphabetical orderThe main floor is to engage in large high valve industry is a very good platform after the switch is convenient to say we all know whether peer or do
Q:Which valve can play a good regulatory role?
A wide range of valves, the function is different, although like conventional butterfly valve, ball valve can play a regulatory role, but their role is not linear, so if you need to adjust the precision of the valve, it is best to select the control valve.
Q:Who knows a door valve heating valve how to open?
The heating valve refers only to a radiator system accessories, is a type of valve, the valve commonly used heating system on the market is mainly divided into: gate valve, ball valve, safety valve, balance valve, globe valve, regulator valve, relief valve, pneumatic control valve.
Q:Which valves are used in the power station?
Power gate valve, also known as power station valve, is mainly used in various pipelines of fire power plants, cutting off or connecting pipeline medium.Applicable medium: non corrosive media such as water and steam. Compared with other valve products, the valve is characterized by high temperature and high pressure and unique self sealing design. The higher the pressure, the more reliable the seal is. Because of its performance, technical characteristics and special working conditions, the products can not be replaced by other products.Compared with other valve products, the gate valve of the power station is characterized by high temperature and high pressure. If only the pressure is lower than that of the universal valve, the temperature is lower than that of the general valve. Because of its performance, technical characteristics and special working conditions, the products can not be replaced by other products.
Q:How many triangular valves and other valves are used in kitchen and toilet decoration?
Landlord water and electricity installation? If you ask the water electrician to install it, you don't need to worry about it so much. You can wait for water electrician to install the hot and cold water pipe in place. We can count on you here.
Q:What's the name of the valve?
This is not a valve, it is a pipe bender.
Q:Which brand of electric valve is good?
Taiwan mountain, South Korea I-TORK are good. The mountain is characteristic of the hand wheel device, the hand wheel device is without clutch design, when the current is interrupted, without using any auxiliary tools (brake wrench, etc.) under the condition of the manual operation valve handwheel will directly to the desired position, and when the normal power supply, not because of misuse the hand wheel caused personal injury or cause drive failure.

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