The main features of flanged butterfly valve are:

1, Small and light, easy disassembly and maintenance, and can be installed in any location.

2, The structure is simple, compact, the operation torque is small, the 90° slewing opens quickly.

3, Flow characteristics to a straight line, good regulation performance.

4, The connection between butterfly plate and valve stem uses the pin-free structure, overcomes the possible internal leakage point.

5, The Butterfly Plate outer circle uses the spherical shape, enhances the seal performance and lengthens the valve service life, with presses the opening and closing 50,000 times above still to maintain 0 leaks.

6, seals can be replaced, and sealing reliable to achieve two-way sealing.

7, the butterfly board can be sprayed according to user requirements, such as nylon or poly-PTFE.

8, the valve can be designed flange connection and clamp connection.

9, the driving mode can choose manual, electric or pneumatic.

The electric flange butterfly valve is suitable for the temperature ≤120℃ or ≤150℃, the nominal pressure ≤1.6MPa water supply and drainage, sewage, food, heating, gas, shipbuilding, water and electricity, metallurgy, energy systems and textile and other industries, particularly suitable for two-way sealing and valve corrosion occasions, for regulating flow and intercepting media.

Valves with metal seals generally have a longer life than elastomeric seals, but it is difficult to fully seal them. The metal seals can adapt to the high working temperature, and the elastic seal has the limitation of temperature.

Electric flange butterfly valve usually by the angular stroke electric actuator (0~90° part of the rotary) and electric flange butterfly valve through mechanical connection, after installation and commissioning together.

The butterfly plate of the electric flange butterfly valve is installed in the diameter direction of the pipe. In the electric flange butterfly valve body cylindrical passage, disc-shaped butterfly plate revolves around the axis, the rotation angle is 0°~90° between, rotates to 90°, the valve is full open state.

The electric flange butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. The 90° can be quickly and easily operated, and the valve has good fluid control characteristics. Flange butterfly valve is in full open position, the butterfly plate thickness is the medium flow through the valve body when the only resistance, so through the valve produced by the pressure drop is very small, it has a good flow control characteristics. The butterfly valve has two sealing types, which are sealed with the elastic seal and the metal. Elastomeric seal Valves, seals can be embedded in the body or attached to the perimeter of the butterfly plate.

Valves with metal seals generally have a longer life than elastomeric seals, but it is difficult to fully seal them. The metal seals can adapt to the high working temperature, and the elastic seal has the limitation of temperature.

If the butterfly valve is required to be used as flow control, the main thing is to select the correct size and type of valve. The structure principle of the electric flange butterfly valve is especially suitable for making large caliber valves. Shanghai Engung Valve Co., Ltd. Butterfly valve not only in the oil, gas, chemical, water treatment and other general industries have been widely used, but also used in thermal power plant cooling water system.

The common electric flange butterfly valve has pair of butterfly valve and flange type butterfly valve two kinds. The wafer-type butterfly valve is connected between two pipe flanges with a double head bolt, a flanged butterfly valve is provided with a flange on the valve, and a bolt is connected with the flange of the valve on the pipe flange.

In the fully open position, the butterfly plate thickness is the medium flow through the valve body when the only resistance, so through the valve produced by the pressure drop is very small, it has a good flow control characteristics. The electric flange butterfly valve has two sealing types, which are elastic seal and metal seal. Elastomeric seal Valves, seals can be embedded in the body or attached to the perimeter of the butterfly plate.

Valves with metal seals generally have a longer life than elastomeric seals, but it is difficult to fully seal them. The metal seals can adapt to the high working temperature, and the elastic seal has the limitation of temperature.