High vacuum electric butterfly valve is an important executive unit in industrial automation control field
High vacuum electric butterfly valve belongs to an electric valve and electric control valve in a variety. High vacuum electric butterfly valve connection mode mainly includes: flange type and clamping type; High vacuum electric butterfly valve sealing forms are: rubber seal and metal seal. The high vacuum electric butterfly valve controls the switch of butterfly valve through the power signal. This product can be used as a cut off valve, control valve and check valve for piping system. Manual control device is attached. In case of power failure, manual operation can be used temporarily without affecting the use.
High vacuum electric butterfly valve belongs to an electric valve and electric control valve in a variety. The connection mode mainly has: the flange type and the clamping type. High vacuum electric butterfly valve is an important executive unit in industrial automation control field.
High vacuum electric butterfly valve is simple in structure, small in size and light in weight. And only need to rotate 90° can quickly open and close, easy to operate, and high vacuum electric butterfly valve has good fluid control characteristics. When the high vacuum electric butterfly valve is in the fully open position, the thickness of the butterfly plate is the resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has a good flow control characteristics. The high vacuum electric butterfly valve has two seal types: elastic seal and metal seal. Resilient seal valve, seal ring can be embedded in the body or attached to the disc periphery.
The valve that USES metal seal is general longer than the valve of elastic seal, but achieve completely seal very hard. Metal seal can adapt to higher working temperature, elastic seal has temperature limit defects. If high vacuum electric butterfly valves are required for flow control, it is important to select the correct size and type of valve. The structure principle of high vacuum electric butterfly valve is especially suitable for making large diameter valve. High vacuum electric butterfly valve is widely used not only in petroleum, gas, chemical industry, water treatment and other general industries, but also in the cooling water system of thermal power stations.
There are two kinds of high vacuum electric butterfly valves: clamping high vacuum electric butterfly valve and flange high vacuum electric butterfly valve. Double head bolt is used to connect the valve between two pipe flanges. Flange type high vacuum electric butterfly valve is equipped with a flange on the valve, and the two ends of the flange on the valve are connected to the pipe flange with the bolt.
High vacuum electric butterfly valve is composed of electric actuator and butterfly valve, so it has the advantages of simple butterfly valve operation, simple structure, high vacuum electric butterfly valve is widely used in chemical industry, medicine and other industries. And because of the assistance of electric actuator, so that the development of butterfly valve on a new level. Principle of high vacuum electric butterfly valve: drive the stem through the electric device to make the butterfly plate produce 90° rotary motion and achieve the opening and closing of the valve. The principle of the electric actuator is actually very simple, just like the daily use of razor, the energy source is electricity, electricity drives the valve plate operation, so as to open and close the valve and flow or stop the fluid function. High vacuum electric butterfly valve of the electric actuator can be divided into switch type and control type, switch type high vacuum electric butterfly valve is to play the role of switch; And regulating high vacuum electric butterfly valve is to regulate the flow, you can adjust the flow to thousands of minutes, high vacuum electric butterfly valve is also a relatively high price of a valve. The high vacuum electric butterfly valve is a device installed in the pipeline. If it is not practical to check the switching status in the field, then there is a feedback signal. The regulator has a feedback signal, while the switch can be installed according to the customer's specific needs.
On 2018-08-08 11:45:46
