8″ and above). This enables the valve to be easily retrofitted in line regardless of the manufacturer. Butterfly valves consist of a disc attached to a shaft with bearings used to facilitate rotation. Most economical  for  large  lines  in  chemical  services,  water  treatment,  and  fire protection systems. The butterfly  valve  complies  with  ASME  face-to-face   dimensions  and  pressure ratings. Butterfly valve is suitable for flow regulation. Butterfly valves are mainly used in waste treatment systems. When open in about 15 ° ~ 70 °, and can perform a sensitive flow control, thus in the field, the regulation of large diameter butterfly valve application is widespread. On September 12th, 2018, We have completed an important order today. Where’s your factory located? Since the pressure loss of the butterfly valve in the pipe is relatively large, about three times that of the gate valve, when selecting the butterfly valve, the influence of the pressure loss of the pipeline system should be fully considered, and the strength of the butterfly plate withstand the pressure of the pipeline medium when it is closed should also be considered . 2504,25TH Floor,Buliding 2,Nongye East Road Number 45 ,Jinshui District, Zhengzhou City, Henan Province, China. S Bharadwaj Reddy May 1, 2016 March 21, 2019. Tel: +86-577-57666870   A butterfly valve is a type of quarter turn valve. Operation is similar to that of a ball valve, which allows for quick shut off. (1) Simple structure and small size. The working stroke is small and…, Various types of wide range of USES, the valve, the valve of the classification of…, Cast iron dual plate wafer type check valve, Solution copy of the combination of globe valve and gate valve, Advantages And Disadvantages Of The Globe Valve. (required) Your Message Please leave this field empty. Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. 3. by：AIRWOLF 2020-05-23 2020-05-23 Discussion on the instability and vibration of pneumatic control valves.
These are considered high recovery valves, since only the disc obstructs the valve flow path. A customer from Pakistan came to our company for a field visit. We'll assume you're ok with this, but you can opt-out if you wish.

The ASME pressure classes adhered to by most manufacturers include 150, 300 and 600# allowing a maximum pressure of 1500 psi.

The structural length and overall height of the butterfly valve are small, the opening and closing speed is faster, and it has good fluid control characteristics. When fully open, the butterfly creates little turbulence or resistance to flow. NO. The valve opens when the rack on the piston pulls the pinion around counterclockwise. In addition, it is important to consider the temperature limitation of the resilient seat material at high temperatures. With a certain automation effect, and because the actuator itself is energy drive, so the valve body opening and closing parts of the drive is also of certain value. 2016——VerSpec US warehouse operated in Akensas. 2018-03-23 The butterfly valve is used to open and close the circular butterfly plate that rotates with the pungent to achieve the action of the electric valve, which is mainly used as a cut-off valve. 13 pallets goods are shipping to the United States. Make this kind of valve gear of medium in the pipe precise truncation effect. It can also be designed to have the function of adjustment or paragraph valve and adjust the disc. He visited our sample room under Ricky's leadership. Therefore, the application of butterfly valves is very common in the field of large-diameter adjustment.

The valve is use to open and close fluid lines due to low fluid resistance. Customers will be always welcomed to visit our company and our factories.Please contact us your schedule,we will arrange to pick up you and visit our factory. 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 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.
The stem may be mounted in the middle or attached offset. Tel: 0086-553-3819777 Tel: 0086-553-3801388 Fax: 0086-553-3801578 E-mail: [email protected] whatsapp: 0086-189 4959 9420, >  Wafer butterfly valve >  Lug butterfly valve >  Flanged butterfly valve >  Lined butterfly valve >  high performance butterfly valve >  Electric Butterfly Valve >  Pneumatic butterfly valve. ", Address:NO. 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. Pneumatic valves in regulating valve are characteristic of the valve. That’s all for my sharing for the Butterfly valve working principle,and we are the Butterfly Valve Manufacturer,welcome to purchase our products.

And has the effect of flow control, and fully automated processing.

We are a solenoid valve manufacturer, we have the ability of mass production . Limited by the material of the sealing ring, the operating pressure and operating temperature range of the butterfly valve is relatively small. Pneumatic actuators have certain principles when performing their work. However, instead of a ball mounted in the valve body a circular disc (called a butterfly because the two half circles around the vertical shaft appear like wings). When the butterfly valve is at a medium opening, the opening shape formed by the front end of the valve body and the valve plate is centered on the valve shaft, and different states are formed on both sides: the front end of the butterfly valve on one side moves in the direction of downstream water, and the other side moves in the direction of upstream water. Namely 0 to close state, 90 degrees for the qi state. Butterfly valve is according to rotate the valve stem drive disc rotating at the same time for opening and closing of a butterfly valve, cylindrical channels in butterfly valve body, disc disc around the axis of rotation, mainly is 90 ° rotating disc plate for flow control, when the disc plate reaches 90 ° butterfly valve in the fully open position, at the same time can change the Angle of the disc plate to adjust the medium flow rate, generally installed on the diameter of the pipe direction. Inspection standards and methods for pneumatic actuators. Make this kind of valve gear of medium in the pipe precise truncation effect. Pneumatic valves in regulating valve are characteristic of the valve. Can we visit your factory? The working principle of butterfly valve. What are the good tastes of pinch valves. Accept Read More, A ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball (called a "floating ball") to control flow through …, Globe valves consist of a movable disk-type element and a stationary ring seat in a generally spherical body. The key component of a butterfly valve is the disc, a metal ring which is positioned at the centerline of the pipe and connected to an external actuator (manual level or actuator) via a rod. A rod passes through the disc to an actuator on the outside of the valve. The disc is positioned in the center of the pipe. A quarter turn valve can open or close whenever the handle is turned 90 degrees (a quarter of a turn). In addition, it is necessary to consider the limitation of the working temperature of the elastic valve seat material at high temperature. We attend 2018 Bauma Exhibition in the Shanghai, On November 28th, 2018, we attend Bauma Exhibition in the Shanghai.

2005——Start to produce ceramic lined valve series.  Some  high  performance butterfly  valves  meeting  ASME  class  VI leakage  ratings  are however  available  on demand. It can also be designed to have the function of adjustment or paragraph valve and adjust the disc. This website uses cookies to improve your experience.

Pneumatic butterfly valve actuators are divided into the principle of single and double action, single-acting is shut gas spring return type, double role is gas-off type. 90 - degree adjusted. is used to open and close the circular butterfly plate that rotates with the pungent to achieve the action of the electric valve, which is mainly used as a cut-off valve. The closing mechanism takes the form of a disk. The flow can be controlled in stages by changing the rotation angle of the butterfly plate. Butterfly valve has small structural length and overall height, fast opening and closing speed, and good fluid control characteristics.