Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. NIBCO® Press System® applies the proven performance of press technology to NIBCO valves and fittings — the most specified flow control products in the industry. The NIBCO® Press System® features a full range of precision engineered copper fittings, bronze valves, accessories, pressing tools, jaws and chains.
butterfly valve
Once you have made your selections, the unit price for the valve in question will be displayed, and you can add the required quantity to your cart. Butterfly valves, unlike gate valves, can be used for throttling or regulating flow as well as being fully open or closed. When compared to a gate valve, the pressure loss through a butterfly valve is minimal. Butterfly valves can be metal-to-metal seated, soft seated, or with a fully lined body and disc.
butterfly valve dimensions
With this the valve body is inserted even with no contact to pipe flanges. Valtorc International Automated Butterfly Valvesare a high performance solution to your industrial Automated Butterfly Valves needs. Valtorc Automated Butterfly Valves are available in sizes ranging from 2″ to 12″ in Cast Iron and Stainless Steel.
parts of butterfly valve
Can be widely used in petroleum、chemical industry、light industry、papermaking industrial、pharmaceutical、car automatic control system on a remote concentrated or local control. Factory price 8 inch pneumatic actuated butterfly valve consists of a pneumatic actuator and a butterfly valve that comes with a 200mm port and high performance disc. Industrial air operated butterfly valve can work at high temperature below 100 °C, which is a high performance and reliable device for air, liquid and flow control.
Butterfly Valves On NIBCO
You can use this table as a reference when selecting butterfly valve sizes. If you are planning to purchase a butterfly valve, you should ask the manufacturer for a catalog that specifies the range of sizes you can choose from. Manufacturers should also provide a complete size and dimension table such as the one below. Generally, when you see a “valve size” measured in inches or mm, it refers to the diameter of the valve that is equal to the nominal pipe diameter that connects to the valve. Here is an excerpt from Huamei’s Butterfly Valve catalog which shows how you can measure butterfly valve. Face to face dimensions for full and standard port valves is the same.
butterfly valve drawing
Galvanic corrosion can become a problem if the disc is less noble than the pipe. The proper selection of disc material or disc coating mitigates the problem of galvanic corrosion. Wide Temperature Range – High-performance, flexible-lip seals extend the operating temperature range of butterfly valves.
About Butterfly Valves
For this reason, Inconel butterfly valves are used for applications requiring heavy duty seats such as in handling bulkier fluids. The body design of the valve is either wafer or lug wafer type, both designs allow for easy installation of the valve. Compared to other types of valve, the butterfly valve body is considered ‘thin’ and occupies little space within the pipework. This arrangement will make the seat has no friction or rubbing while closing or opening. This arrangement will also make the valve has a bubble-tight in the high-pressure application and much longer lifetime rather than a double-offset butterfly valve.
Flanged Type
Industrial butterfly valves are lighter than gate valves, making them easier to use and install in situations involving large pipe widths. They are perfect for small-space installations, where wafer butterfly valves are advised. In reality, as compared to gate valves, butterfly valves are employed more frequently in large sizes. Butterfly valves are more compact and have a simpler construction and lighter weight than other valve types. This is because they are designed to fit between two pipe flanges. There are several types and designs of butterfly valves available, rated in varying temperatures, pressures, and flow rates to suit the needs of pipeline systems handling liquids and gases.
Butterfly Valves Construction, Types, Stem & Bonnet Assembly
These valves do have a positive shut-off and can handle higher pressures. Some common ways that the seat is attached to the body are dovetail joint seats, cartridge seats, and bonded seats. Resilient seated valves are concentric with the pipeline, as the disc is held in the center of the valve. This valve type is position seated, with continuous disc-to-seat interference. Ratings are commonly in cold working pressure rather than class rating but fit between ASME Class 125 and Class 150 flanges. Resilient seated valves are often designed below ASME pressure class ratings, thus more cost effective for low pressure applications.
What is difference between Gate valve & Butterfly valve?
The globe valve is composed of the seat, disc, stem, bonnet, handwheel, packing gland, and etc. Once opening, there is no contact between the valve seat and the sealing surface of the disc. The butterfly valve is mainly composed of valve body, stem, butterfly plate and sealing ring. The valve body is the cylindrical, short axial length, it’s open and close is usually less than 90°, when in fully open, it offers a small flow resistance. Butterfly valve and butterfly rod do not have self-locking ability. For the consideration of butterfly plate, a worm gear reducer should be installed on the valve stem.
The Honest to Goodness Truth on Butterfly Valve Vs Gate Valve
Butterfly valve belongs to the family of the quarter-turn valve because the disc is rotated in quarter-turn even if it is open or closed. There is a disc on the rod, when the valve is closed the passage is blocked by allowing a quarter turn, the metal disc used here is known as butterfly which is the main part of the valve. Valvulasfevisa delivers premier products, they are known for Gate valve suppliers, Butterfly valve suppliers, ball valve suppliers, water valve suppliers, and more.
Pneumatic butterfly valve working principle diagram
Lug butterfly valves connect directly to the flanges by means of a lug or machine bolt. Since these are attached directly to the flanges, each length of pipe on either side of hte valve can be removed and replaced independant of the other. A butterfly valve, abbreviated as BTFLV, is a quarter turn valve (90° or less) with a circular disk as its closing element. The standard design has the valve stem running through the disk, giving a symmetrical appearance. Advantages include less wear and tear on the disk and seats, and tighter shut-off capabilities. When space is limited, sometimes larger valves may use a hand wheel with a gear arrangement.
Why Choose This Kind Of Kind of Butterfly Valve Drawing
Our products are widely used in various fields such as marine industry, shipbuilding, petrochemical, metallurgy, water treatment, fire fighting, water supply and drainage, etc. The company has won unanimous recognition and praise from customers with high quality and good reputation. There are many uses of valves – mainly controlling the flow of fluids and pressure.
What is a butterfly valve used for?
From the basics to insightful usages, people can convert them to use according to their own convenience and purpose. A ball valve is a shut-off valve that allows or obstructs the flow of liquids and gases in a piping system by rotating the ball having a bore inside the valve for 90°. The ball is mounted against two seats and has a stem that connects it to the operating and control mechanism that rotates the ball… Hastelloy butterfly valves are used in high temperature and pressure and corrosive applications, which are found in oil and gas processing and power generation.
How Does A Butterfly Valve Work And Its Types
The structural principle of the butterfly valve is most suitable for the manufacture of large diameter valves. When a butterfly valve is needed to control the flow, the most important thing is to correctly select the size and type of the butterfly valve so that it can work correctly and effectively. Zero offset butterfly valves have resilient soft seats because they depend on the flexibility and deformation of the soft seat during sealing. This causes the disc edges to slide onto the seat, which results in full friction between them during the operation. Since the design requires the seat to be made from a polymeric or elastomeric material, it is limited to lower pressure and temperature ratings.
Parts of Butterfly Valve + Function: A complete guide!
Therefore, the butterfly valves are most commonly used for municipal engineering, septic tanks, building water pipelines, environmental protection, and hydropower applications. You can also use an automatic actuator, gears, or handles to operate them. A resilient seated butterfly valve includes a rubber seat between the outer diameter of the disc and the inner wall of the valve. This seat is mechanically attached to the valve body and the disc has an interference fit with the seat in the closed position. These valves do have a positive shut-off and can handle higher pressures. Some common ways that the seat is attached to the body are dovetail joint seats, cartridge seats, and bonded seats.
Butterfly Valve Specification Standard Manufacture, Butterfly Valve Specification Standard China Exporter
AIV BFV10 Model Butterfly Valve incorporates the optimum design features to provide long trouble free service in the field. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with centric disc construction and is available in wafer type body pattern. Compared to a ball valve, the disc of a butterfly valve is always in contact with the fluid conveyed by the pipeline and creates, therefore, a pressure drop. AWWA Butterfly Valves – These are valves as specified by the American Water Works Association. These types of butterfly valves are used to process potable water. There are many types of stainless steel from 300 to 400 series, but 316L is preferred for butterfly valve.
Butterfly Valve Specification Standard : The Ultimate Convenience!
Similarly to stainless steels, titanium alloys feature a protective oxide layer on their surface which protect the product from rusting. The images show the design difference between a double and a triple eccentric butterfly valve . The concentric butterfly valve is used in water and wastewater treatment plants, fire protection systems, and gas supply. In this guide, we have classified butterfly valves into many types as summarized below. Electric-operated butterfly valves can be operated manually, semi-automatically or automatically. It is one of the most reliable solutions for large plants and applications.