The butterfly valve is used to control or shut off fluid by the valve disc. A Sanitary butterfly valve is different from an industrial butterfly valve, it normally uses high purity stainless steel 304 or 316L and the inside surface is well polished, not retaining the fluid. Usually used in food processing and beverage, dairy, pharmaceutical industries.
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DONJOY Sanitary butterfly valve uses stainless steel as the body material and disc, with SS304, SS316L.
Valve body and disc are integral forged processing and machining by CNC machines, stronger and better than casting.
10 bar, 150 psi, 1 Mpa, PN 10
Sanitary application requires better surface roughness, inside mirror polish treatment, roughness RA 0.8 μm default. (Mep Ra 0.6 μm, Eep Ra 0.4 μm ). Outside matt RA 1.2μm default.
It has two, three, four holes, three holes is the default and most commonly use.
The hole for the pull handle means the position, 3 holes means open, middle open, close, 3 positions.
It has a plastic handle and 12 positions
It has a stainless steel handle and 12 positions
It has a stainless steel handle and 12 positions and could be equipped with a lock.
It&#;s fine-tuning handle and with dial
The pull handle with the limit switch, sensor open and close position
Donjoy butterfly valve can meet 3A, SMS, DIN-1, DIN-2, ISO, RJT standards.
And we can produce the customized long weld end.
Weld end, tri-clover (clamp end), thread male/female(BSPT, BSP, NPT), flange PN10, PN16, square flange
Two-way butterfly valve
Three-way butterfly valve
· EPDM rubber (ethylene propylene diene monomer rubber)is a type of synthetic rubber that is used in many applications.
·Teflon(PTFE) Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications.
· Viton(FPM) Viton is a brand of FKM, a synthetic rubber and fluoropolymer elastomer commonly used in seals, chemical-resistant gloves, and other moulded or extruded goods.
· Silicone rubber is an elastomer (rubber-like material), usually used in the pharmaceutical industry.
· NBR Nitrile rubber, also known as nitrile butadiene rubber, NBR, Buna-N, and acrylonitrile-butadiene rubber, is a synthetic rubber derived from acrylonitrile (ACN) and butadiene.
For more information, please check this article How to select O-ring seal for the sanitary valve.
Actuators to realise automatic operation:
pneumatic stainless steel actuator (vertical type),
pneumatic aluminium actuator (horizontal type),
electric actuator.
on/off type or intelligent regulating type
DC24V/ AC24V/ 110V/ 220V/ 50Hz/ 60Hz
Control top PNP version for single-acting 1 solenoid, input PNP 24V, output 2 positions, PNP 24V 4-20mA
Control top PNP version for double-acting 2 solenoid, input PNP 24V, output 2 positions, PNP 24V 4-20mA
Control top PNP version for three-acting 3 solenoid, input PNP 24V, output 4 positions, PNP 24V 4-20mA, used for mixproof butterfly valve
ASI BUS 3.0 version, maximum to control 62 units
Positioner IL-TOP-, RS485 0/4 &#; 20mA, input 0/4-20mA, single-acting and double-acting.
Positioner IL-TOP--P, with feedback input 0/4-20mA, output 0/4 -20mA, single-acting and double-acting.
Positioner IL-TOP--Pid, with process control 4-20mA/ PT100, single-acting and double-acting.
F-Top- PNP for the single-acting and double-acting vertical actuator, 3 positions, 4-20mA.
Normally butterfly valve for liquid flow, if used for powder processing, we will recommend use powder butterfly valve or make a special smaller disc with less pressure, if regular butterfly valve use for powder, the gasket will be easily worn out.
Sanitary Manual Three-pieces butterfly valve is easy to maintain and install.
It with one disc, two seals
mixproof butterfly valve type-A working principleIt with two discs, two seals
mixproof butterfly valve type B working principleDonjoy Technology CO., LTD as sanitary butterfly manufacturer in China. Founded in , have more than 28 years of experience in producing hygienic butterfly valves, ball valves, diaphragm valves, shutoff valves, globe valves and angle seat valves and so on. Produced more than 3 million hygienic butterfly valves. It&#;s the best choice for you to buy a sanitary butterfly valve from China.
Direct factory sales, get the wholesale price of the butterfly valve.
Provide OEM service for butterfly valves with your own brand.
Great quality, supply for brands Unilever, P&G, Budweiser, Coca Cola, Nestle&#;
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Sanitary valves have 3-A certified, FDA 21 CFR177., CE PED /68/EU and MD-06/42/EC
Donjoy Technology Introduction Video.SANITARY TRI-CLAMP BUTTERFLY VALVE, please kindly check the product link below
SANITARY MULTI-POSITION HANDLE BUTTERFLY VALVE, please kindly check the product link below
Weld End Butterfly Valve with SS Trigger HandlePNEUMATIC CONTROL BUTTERFLY VALVE HYGIENIC VALVE, please kindly check the product link below
AIR CONTROL BUTTERFLY VALVE WITH POSITIONER, please kindly check the product link below
Different butterfly valves are vital in transporting various materials used in the piping industry. These valves have extended lifespans and withstand high pressure. Moreover, these are available in different shapes and sizes for various uses.
A butterfly valve is also used to stop, start, and control fluid flow with the help of rotatory motion. It is a kind of quick-opening valve. Due to the 90-degree turning handle, valves can be opened and closed easily. These valves work positively in the system.
When these valves are joined up with other valves, butterfly valves can be opened and closed easily. The main parts of butterfly valves are the body, disc, stem, and seat. Butterfly valves are primarily used in industries.
There are a few types of water and gas butterfly valves for water plumbing supply and control.
A gas butterfly valve is meant to control gas flow in residential settings. The nature of these valves is to provide tight shutoff to avoid the leaking of gases. They have a rotating circular disc that shuts off or allows gas flow. The construction of the valve is done to ensure safety and strength. These valves are usually fabricated from firm materials that can bear high pressure and temperature. Gas butterfly valves are a necessity in any home gas system.
Mini butterfly valves are the compact versions of standard butterfly valves. The valves work well in tight spaces with the added advantage of flow control. They are mainly used in small systems in residential areas where adjustments are frequently needed.
Mini butterfly valves are used in great deals for heating and cooling systems. The dimensions do not affect performance as they provide reliable and efficient operations. They also allow easy installation and maintenance.
The water butterfly valves are used to control the flow of water in residential systems. They have a disk that rotates inside the pipe, allowing the water to pass through or stop. These valves can be used for both hot and cold water.
Water butterfly valves resist corrosion since they are made of brass or stainless steel materials. They ensure efficient and reliable control over the flow, becoming a basic necessity for any household plumbing and irrigation system.
Threaded butterfly valves are installed with threads on the ends for mounting ease. The valve screws directly into a pipe, ensuring a firm connection. They can be applied in residential water and gas systems.
The threaded butterfly valve is designed to offer reliable flow control without a significant pressure drop. Their concept allows easy removal and replacement. They are strong with various residential applications.
The PEX butterfly valves are designed especially for PEX piping systems. These valves control the water flow in flexible plastic tubing. Corrosion-resistant and durable, they are suitable for residential plumbing. They feature a simple mechanism that allows for fast shutoff of water.
Its design ensures a secure connection to PEX pipes. PEX butterfly valves come standard in most modern plumbing installations.
There are different butterfly valves based on connections as follows;
The first type of butterfly valve is the lug butterfly valve. Lug butterfly valves help to attach the other holes in flanged pipes. Lug valves consist of pieces of metal that access the body limit. The primary work of lug valves is to remove and attach from one side to the other side of the piping system, deprived of extending to the other systems.
The type of lug valves may have a lower speed than wafer valves. Lug-style valves may be exchanged for wafer valves. The lug valve cords are weak because they are made with inferior power material.
The second type of butterfly valve is the wafer butterfly valve. Wafer valves revolve in a circle, which is present between flanged pipes. If we install it, the type of wafer butterfly valves cannot work in a simple position.
The two holes, which are present in the middle, check the connection between the pipes of the wafer butterfly valves. Wafer valves are made without tight sealing. It has two ways of pressure difference. It can commonly be used because it is less expensive. However, wafer valves cannot used end to end of line as a piping system.
The third type of butterfly valve is the flanged butterfly valve. Flanged valves work as a connector in the piping system. It consisted of two pipes, which have high and flew borders. Some flanged valves are used in business works; their shape is &#;U&#; since they are used more in business and have low prices. On the other hand, two similar flanges cannot usually be used for work. It may be testing pieces of valves of flanges pipe.
The last but not minor type of butterfly valve is the Butt-welded valve. Butt-welded valves are primarily used in industries and big companies because they are reliable and have modern designs. These valves are free from leakage and are directly connected to the pipeline system.
Increase its power and stability due to the welding method. After that, it is fit for high-pressure and high-temperature uses. Butt-welded valves are designed with discs mounted on a revolving place.
This disc is 90 degrees from opening or closing the valves and controls the flow rate. It is occasionally made from materials like stainless steel or other high-grade mixtures.
Before you use it, you should know about essential requirements. You must know about working situations, such as pressure, throttling control, temperature, and fluid type.
There are many butterfly valve sizes; you must choose the right size according to your piping system. When selecting the valve size, you should know the pipe size and water pressure.
Before choosing butterfly valves, you should select the suitable material. Select a material that meets your requirements and working situation. Some common materials include carbon steel, PVC, stainless steel, cast iron, and CPVC.
Every valve has its uses, working conditions, advantages, and disadvantages. The selection of valve type entirely depends upon your uses. The main types of butterfly valves include wafer, flanged, welded, and lug butterfly valves. When you choose any valve, you must consider pressure, flow rate, and seal work.
Before selecting valves, consider the reliability and maintenance necessities. For this purpose, you know the maintenance and reliability of dependable brands. Before valve selection, know some reasons, such as the use of spare parts, maintenance, and technical support.
The selection of butterfly valves must consider sealing technology. There are two selections of butterfly valves: rubber seats and metal seats. The best sealing technology for rubber or resilient seats is. On the other hand, metal seats provide higher temperatures.
Flow control performance is the central section when choosing butterfly valves. When selecting a butterfly valve manufacturer, you know about optimizing ability, water pressure, and water control.
To select butterfly valves, you should know about the standards and certification of valves. For application, you select safety quality and working opportunities in valve standards and certification. High standards of valves include ISO, API, NSF, and ANSI.
Budget consideration is necessary when choosing any butterfly valve. You recognize your budget boundaries. Take a balance between budget and requirements. After that, you get excellent butterfly valves according to your system.
Butterfly valves are primarily used in the food industry, residential water plumbing systems, chemical processes, heating systems, energy production, natural gas refining, and petroleum. Butterfly valves are used to control the flow rate of water. Water pressure in big plants and dams is so high that butterfly valves control water pressure and working function.
Butterfly valves, such as hydropower plants and dams, maintain the water flow rate at the bottom sides. These valves also protect the water of other big plants and dams. Frequently, butterfly valves are used for turbines, penstocks, and water discharge lines.
Butterfly valves provide higher speeds than other types of valves. It helps to control the high pressure of water. Material selection, maintenance, valve types and size, flow control performance, standards, and certification can help choose an excellent model when working on butterfly valves.
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