If you are willing to buy any kind of valves for industrial purpose as well as home, then this place is perfect for you. that are both efficient in isolating and regulating the flow of media. Electric-operated butterfly valves needs electricity to operate.

If you need to learn more about butterfly valves, XHVAL is a reputable butterfly valve manufacturer. Video Credit: Charles Lonon / CC BY-SA 4.0 Classification . This type of actuation operates the quickest according to many, Butterfly Valves Based on the Configuration of the Disc, This is the most basic kind of butterfly valve. Required fields are marked *. Required fields are marked *, 904 Padma Tower -1, 5 When a set pressure is met by the system, the disc, forced to move by the actuator, turns parallel or perpendicular to the flow of the medium. It can be used for a wide range of applications such as water supply, wastewater treatment, and fire protection, for chemical and fuel industries and many more. Thus, they are used for the lowest class standard which is Class 150 rating. It can start, stop and control the flow of media.
If the valve is opened in a full quarter turn, the valve allows the passage of the medium in full force. Typically, soft seated valves are concentric/lined type/zero offset, while metal seated valves are for eccentric designs (double or triple offset). You don’t need a diverse technical knowledge to figure out how it works. It is based on the quick shut off principle. The triple offset butterfly valve has an additional offset located at the axis of the disc and seat, apart from the ones already mentioned in the double offset design. Top 10 Best Butterfly Valve Manufacturers in 2020. If you want to explore our range of high quality, high-performance butterfly valves, you may go to our website and reach out to us. The valve disc is made of high-grade metal with a seat made either of soft elastomeric material or another metal. Butterfly valve Gate valve Ball valve Check valve Globe valve Y Strainer Pneumatic Actuator. Your email address will not be published. There are 3 types of offset design: zero offset, double offset and triple offset. Butterfly valves have a very simple working mechanism that is extremely advantageous to the applications it services. This kind of butterfly valve is used for low-pressure applications. They are made up of very fine quality materials. The stem is attached to the handle that is either placed on top of the body or at its side. Or you can get the great manufacturers in this. For the control of flow, the disc moves to partially open or close, allowing a certain amount to pass through. The difference between them can be easily seen in their structure. The dual offset design also prevents friction or rubbing between the metal surfaces upon closing the valve. For high temperature and high pressure applications, we cannot use a zero-offset butterfly valve. This enables lesser disc-to-seal contact before full closure. Tel: 086 379 69926196. There is a slight pressure drop when the valve opens. Whereas in eccentric butterfly valves, there can be more than one stem placed offset from the center. This type of actuation operates the quickest according to many butterfly valve China manufacturers.

When the system detects that its about to exceed the air pressure, a diaphragm modulates the opening and closing amount of the butterfly valve. Sometimes called the centric valve or the zero offset butterfly valve, the stem passes through the centerline of the disc and through the center of the pipe. The stem is attached to the handle that is either placed on top of the body or at its side. The disc remains parallel or perpendicular to the flow. It is different from ball valve in many ways. The double offset butterfly valve is suitable for high-pressure applications that need a bubble-tight sealing. This kind of butterfly valve is used for low-pressure applications. The design is quite simple and it is easy to operate. Aluminum valves are used for lightweight applications; stainless steel butterfly valves are for corrosive medium transport; carbon steel (WCB high performance butterfly valve) are for high strength and high-temperature applications; and austenitic steel valves are for cryogenic applications. Here’s a detailed VIDEO to help you understand how triple offset butterfly valves work: Butterfly valves work very simply. Required fields are marked *. established in 1986, API certification for 15 years, engaged in professional valve development, manufacture and sale of professional valve manufacturers, with two subsidiaries; and sub-brand (XHV &XHVAL). The disc component can be operated through multiple ways.

The butterfly valve is classified into four types.
Bolts connect the valve to the pipe system. It is a high performance butterfly valve with two offsets of the stem. Or you can get the great manufacturers in this complete valve manufacturers guide in China. We have a wide range of butterfly valve portfolio ranging from different seat design, body, disc and stem material and end-type connections. Connect to our newsletter to stay updated about our various evolving products and their usability in your life. Seat material may either be metal seated or resilient seated. This valve can also be used in wastewater treatment facilities, fire protection services, and fuel handling. Butterfly valves are easy to handle and are used in many flow control and throttling applications. Double Eccentric Butterfly Valves are suitable for heavy duty applications such as high temperature and pressure applications as its dual offset design is meant for anti-wear of metal-to-metal seats. Your email address will not be published.

This is the most basic kind of butterfly valve. This type is attached between two flanges using bolts that lock the entire valve body. The stem of the eccentric type does not pass through the centerline of the valve. The actuator can be powered by an electric source, pneumatic diaphragm, hydraulic piston or by manually turning a handwheel. A butterfly valve consists of metal disc that rotates about the stem and initiates a tight shut-off on the circumference of its resilient seat. It covers all three major functions so you get the best of all three kinds of valves. The movement follows a specific cone profile to address shut-off of metal seats. In fact, zero offset butterfly valves can only be used in systems with 250 psi maximum pressure and 400 degrees fahrenheit. The disc is attached to the stem, either through the former or the stem is at the back of the disc. Pneumatic Valves can be used for throttling or as throttle butterfly valves. These valves are typically used in systems that do not require automatic operation. They function to open/close systems as well as controlling flow. This is to ensure a better and longer life service of the disc. This is the simplest (and oldest) way to operate a butterfly valve. Factory Address: Zhujing Industrial Park,Jinshan Area, Shanghai City,China. Since it’s a quarter-turn valve, you only need to turn the handle to 90 degrees to fully open the valve.