A vertical valve with everyone to understand the electric butterfly valve
The electric butterfly valve is composed of a valve composed of an electric actuator and a butterfly valve, so it has the advantages of simple operation and simple structure of the butterfly valve, and is also widely used in the chemical, pharmaceutical and other industries. And because of the assistance of electric actuators, the development of butterfly valves has taken a new step. Silicon Nitride ceramic materials can be used for high-temperature engineering components, advanced refractory materials in the metallurgical industry, corrosion-resistant parts and sealing parts in the chemical industry, and cutting tools and cutting tools in the machining industry. Silicon Nitride Ceramic Tube,Silicon Nitride Ceramic Nozzle,Silicon Nitride Ceramic Round-Plate,Silicon Nitride Ceramic Guide Wheel SHENZHEN HARD PRECISION CERAMIC CO.,LTD , http://www.hardcm.com
As a professional hydraulic control valve manufacturer, today's first valve information summary:
The electric butterfly valve is composed of a valve composed of an electric actuator and a butterfly valve, so it has the advantages of simple operation and simple structure of the butterfly valve, and is also widely used in the chemical, pharmaceutical and other industries. And because of the assistance of electric actuators, the development of butterfly valves has taken a new step.
The working principle of the electric butterfly valve: the valve stem is driven by the electric device, so that the butterfly plate produces a 90° rotary motion to achieve the opening and closing of the valve.
The principle of the electric actuator is actually very simple. Just like the razor used every day, the energy source is electric power, and the electric power drives the operation of the valve plate to achieve the function of opening and closing the valve and circulating or cutting off the fluid. The electric actuator of the electric butterfly valve can be divided into a switch type and an adjustment type, and the switch type electric butterfly valve functions as a switch; and the regulating type electric butterfly valve functions to adjust the flow rate, and can accurately adjust the flow rate to a thousand degrees. It is also a valve with a relatively high price. The valve, as a device installed in the pipeline, does not seem to be very realistic if it is checked in the field, so there is a feedback signal. The adjustment type itself has a feedback signal, and the switch type can choose whether to install the feedback signal according to the specific needs of the customer. Here, I will introduce you to the storage method of the electric butterfly valve.
1. The product should be stored in a dry and ventilated room and should not be stored in the open air; the sealing ring should not be in contact with oily substances to avoid aging.
2. Storage and transportation:
A. Both ends of the path are covered with a smothering cover to protect them from dust and rust.
B. The processing surfaces on both ends of the electric butterfly valve should be cleaned of dirt and coated with anti-rust agent.
3. Electric butterfly valves with a storage period of more than 18 months should be re-tested before installation to ensure structural and functional integrity.
4. When the electric butterfly valve is placed, it should be ensured that the electric device is not damaged by the extrusion and the terminal, and the contact with corrosive substances is prevented. Handle with care to avoid damage to electrical components and mechanical parts.
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Since silicon nitride can form a strong bond with silicon carbide, aluminum oxide, germanium dioxide, boron nitride, etc., it can be used as a bonding material and modified with different ratios. The relative molecular mass is 140.28. Gray, white or off-white. It is a high temperature insoluble compound, has no melting point, and has high resistance to high temperature creep. The binder-free reaction sintered silicon nitride has a softening point of 1800 ° C or higher; hexagonal system. The crystal is a hexahedron.