Description
DN600 PN16 WCB Electrical Butterfly Valve is a valve that uses a disc-type opening and closing member to reciprocate about 90° to open, close and adjust the fluid channel. The butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, and small in installation size, but also has a small driving torque, is easy and quick to operate, and can also have good flow regulation function and closing and sealing characteristics at the same time. It is one of the fastest-growing valve varieties in the past decade. Especially in industrially developed countries such as the United States, Japan, Germany, France, and Italy, butterfly valves are widely used, and their varieties and quantities are still expanding, and they are developing in the direction of high temperature, high pressure, large diameter, high sealing, long life, excellent adjustment characteristics and one valve with multiple functions. Its reliability and other performance indicators have reached a high level, and it has partially replaced stop valves, gate valves and ball valves. With the advancement of butterfly valve technology, in the foreseeable short term, especially in the field of medium and low pressure use of large and medium-sized ports, butterfly valves will become the dominant valve form.
product features
High cost-effectiveness
The average switching life of electric and pneumatic valves is more than 100,000 times, with an 18-month warranty.
Overview application
· Centerline rubber lined butterfly valves are widely used as cut-off or regulating devices in liquid, gas, and semi-fluid pipelines in power, metallurgy, chemical, food, municipal, and power systems, such as water treatment, fire protection, and municipal pipelines.
Features
· As a component used to realize the on-off and flow control of pipeline systems, butterfly valves have been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower, etc. In the known butterfly valve technology, the sealing form mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the limitation of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance. A relatively advanced butterfly valve is a three-eccentric metal seal butterfly valve. The valve body and valve seat are connected components, and the valve seat sealing surface layer is welded with heat-resistant and corrosion-resistant alloy materials. The multi-layer soft stacking seal ring is fixed on the valve plate. Compared with the traditional butterfly valve, this butterfly valve has the advantages of high temperature resistance, easy operation, no friction when opening and closing, and the seal is compensated as the torque of the transmission mechanism increases when closing, which improves the sealing performance of the butterfly valve and extends its service life.
Technical parameters
· Nominal diameter, DN50-DN3000 (2"-120")
· Pressure level: PN6-PN16
· Working temperature: 20°C-200C ,
· Connection method: Flange
Main materials
· Valve body: carbon steel, stainless steel
· Valve plate: ductile iron, stainless steel, duplex steel, alloy steel, etc.
· Valve seat: EPDM, NBR, VITON, etc.
Principle Overview
· The butterfly valve has the characteristics of simple structure, small point volume, light weight, low material consumption, small installation size, fast switching, 90° reciprocating rotation, small driving torque, etc. It is used to cut off, connect and adjust the medium in the pipeline, and has good fluid control characteristics and closing sealing performance. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the resistance of the medium flowing through the valve body, so the pressure drop generated by the valve is very small, so it has good flow control characteristics. Butterfly valves have two sealing types: elastic seal and metal seal. For elastic seal valves, the sealing ring can be embedded in the valve body or attached to the periphery of the butterfly plate. Valves with metal seals generally have a longer life than valves with elastic seals, but it is difficult to achieve complete sealing. Metal seals can adapt to higher working temperatures, while elastic seals have the defect of being limited by temperature. If the butterfly valve is required to be used as a flow control, the main thing is to correctly select the size and type of the valve. The structural principle of the butterfly valve is particularly suitable for making large-diameter valves. Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical industry, and water treatment, but also in the cooling water system of thermal power plants. Commonly used butterfly valves include wafer-type butterfly valves, flange-type butterfly valves, and butt-weld butterfly valves. Wafer-type butterfly valves use stud bolts to connect the valve between two pipe flanges; flange-type butterfly valves have flanges on the valve, and the two end flanges on the valve are connected to the pipe flanges with bolts; butt-weld butterfly valves have both end faces welded to the pipe.
product features
1. This valve adopts a soft sealing structure with reliable sealing performance.
2. The sealing auxiliary material is rubber, which has a long service life.
3. The rubber sealing ring can be located on the valve body or on the butterfly plate, which can be applied to media with different characteristics for users to choose.
4. The butterfly plate adopts a frame structure with high strength, large flow area and small flow resistance.
5. The overall paint can effectively prevent rust and can be used for different media as long as the sealing material of the sealing valve seat is replaced.
6. This valve has a two-way sealing function. It is not controlled by the flow direction of the medium during installation, nor is it affected by the spatial position. It can be installed in any direction.
7. This valve has a unique structure, flexible operation, labor-saving and convenient.
It also has some advantages:
1. It is easy to open and close quickly, labor-saving, has low fluid resistance, and can be operated frequently.
2. It has a simple structure, small size, and light weight.
3. It can transport mud, and the liquid accumulation at the pipe mouth is minimal.
4. It can achieve good sealing under low pressure.
5. It has good adjustment performance.
