BUTTER FLY VALVE

 

BUTTER FLY VALVE

A Butterfly valve is a quarter-turn rotational motion valve, that is used to stop, regulate, and start flow. A butterfly valve has a disc which is mounted on a rotating shaft. When the butterfly valve is fully closed, the disk completely blocks the line. When the butterfly valve is fully opened, the disc is at a right angle to the flow of gas or liquid.

The butterfly valve consists of only four main components: body, disk, stem and seat.

Butterfly valve body: Butterfly valves generally have bodies that fit between two pipe flanges, the most common being lug and wafer body design.

Butterfly valve disk: The disk is how the valve stops flow – it is equivalent to a plug in a plug valve, a gate in a gate valve or a ball in a ball valve. There are variations in disk design and orientation in order to improve flow, sealing and/or operating torque.




Butterfly valve Stem: The stem of the butterfly valve may be a one-piece shaft or a two-piece (split-stem) design. The stem in most resilient seated designs is protected from the media, thus allowing an efficient selection of material with respect to cost and mechanical properties.

Butterfly valve Seat: The seat of a resilient-seat butterfly valve utilizes an interference fit between the disk edge and the seat to provide shutoff. The material of the seat can be made from many different elastomers or polymers. The seat may be bonded to the body or it may be pressed or locked in.

An advantage of this valve is the media going through the valve will not contact the body, since the seat is constructed as a sleeve or cartridge inside of the body.





Comments

Post a Comment

Popular posts from this blog

CMM (Coordinate Measuring Machine)

Image
  CMM (Coordinate Measuring Machine) Include Discontinued Series Product Lineup Handheld Probe Coordinate Measuring Machine  XM series The XM Series is a handheld coordinate measuring machine (CMM) that lets anyone easily measure 3D/GD&T features. The system is portable and shop-floor ready, so measurements can be taken in any location. The unit also automatically records measurement data and creates detailed inspection reports. The images showcases our latest XM-5000 model which allows high-accuracy measurement for palm-sized parts to large applications. Wide Area Coordinate Measuring Machine WM series The WM Series Coordinate Measuring Machine is a new handheld CMM designed accurate 3D and GD&T measurements over a large 15m (49 ft) area. Similar to the XM Series, the unit is portable and shop-floor ready, so measurements can be taken in any location including in the machine tool. The unit also automatically records measurement data and creates detailed inspection rep...
Read more

EV Charging station Market Analysis

 EV Charging station Market Analysis In the first phase of Electric Vehicles (EV) rollout plan, the power ministry is targetting 4 billion-plus population cities under the EV policy initiative. It plans to cover all the state capitals, union territories, major highways and key cities under the second phase. The electric vehicle charging infrastructure market in India is anticipated to grow at a CAGR of over 40% during the forecast period 2019-2025. Increasing government support is one of the major factors driving the electric vehicle charging infrastructure market in India. Based on component, the electric vehicle charging infrastructure marketing India is segmented into hardware and software & services. Hardware comprises sockets, cables, and charging units. Software & services include installation and maintenance of charging units, platform as a service, and other services. Other services include battery delivery service and towing service, which are in a very nascent sta...
Read more

Cochran Boiler

Image
  Cochran Boiler:  Definition, Parts or Construction, Working Principle, Advantages, Disadvantages, Application Cochran Boiler is a simple  fire tube boiler  with multiple fire tubes. It is a modification of a simple vertical boiler. In the Cochran boiler, the heating surface is replaced with multiple fire tubes that’s why it is the modification of Simple Vertical Boiler. Cochran boiler has greater efficiency comparatively Simple vertical boiler. Here in this article, we are going to study  Definition, Parts or Construction, Working Principle, Advantages, Disadvantages, and Application in very detail. Cochran Boiler Definition: Cochran boiler is a fire tube boiler (Fire inside the boiler and water surrounding them) in which coal or gases as a working fluid is used, for generating the steam,   and that steam is   further used for several purposes. Now comes to the construction, Cochran Boiler Parts or Construction: Cochran Boiler consists of the followi...
Read more