Year1
- 适用压力：
- 0.05～4MPa
- 介质温度：
- 0.05～4MPa
- 连接方式：
- 内螺纹、外螺纹、法兰
Overview of imported vacuum solenoid valve
The imported vacuum solenoid valve is a special valve installed on a mechanical vacuum pump. The valve and the pump are connected to the same power supply, and the opening and closing of the pump directly controls the opening and closing of the valve. When the pump stops working or the power supply is suddenly interrupted, the valve can automatically close the vacuum system and fill the pump cavity with atmospheric air through the air inlet of the pump to prevent the backflow of pump oil from contaminating the vacuum system. The suitable working medium for vacuum solenoid valves is air and non-corrosive gases. It is characterized by rapid action, simple structure and easy operation. It is mainly used to automatically cut off and switch on or switch the fluid flow direction. The power supply of the vacuum solenoid valve can be divided into AC and DC. Solenoid valves using alternating current are particularly fast in action, but prone to heat and have small opening and closing force. Solenoid valves using DC power are not easy to heat up and have greater opening and closing force, but their movements are not as fast as those using AC.
Features of imported vacuum solenoid valve
No external leakage is blocked, internal leakage is easy to control, and it is safe to use. Internal and external leaks are a safety hazard. Other automatic control valves usually extend the valve stem, and the rotation or movement of the valve core is controlled by an electro-pneumatic-hydraulic actuator. It is difficult to control the torque of the solenoid valve, and it is easy to cause internal leakage, or even pull off the valve stem head. The structure of the solenoid valve makes it easy to control the internal leakage until it drops to zero. Therefore, solenoid valves are particularly safe to use and are especially suitable for corrosive, toxic or high and low temperature media.
The system is simple, easy to connect to a computer, and the price is low. The solenoid valve itself has a simple structure and low price. It is easier to install and maintain than other types of actuators such as control valves.
The action is fast, the power is small, and the appearance is lightweight. The response time of the solenoid valve can be as short as a few milliseconds, and even the pilot solenoid valve can be controlled within tens of milliseconds.
Due to its self-contained circuit, it is more responsive than other automatic control valves. The power consumption of a properly designed solenoid valve coil is very low. It is an energy-saving product and can automatically maintain the valve position by triggering the action without consuming any power at all.
The vacuum solenoid valve has a small appearance and size, which not only saves space, but also is light and beautiful.
Vacuum solenoid valves come in various models and are widely used. Although solenoid valves have inherent shortcomings, their advantages are still very prominent, so they are designed into a variety of products to meet various needs and have a wide range of uses. The progress of solenoid valve technology also revolves around how to overcome inherent shortcomings and how to better utilize inherent advantages.
Basic parameters of imported vacuum solenoid valve
Applicable media include gas, water, oil, steam, refrigerants, corrosive fluids, except cast iron body
Applicable pressure ~
Medium temperature ~ Cast iron body is only suitable for ~
When the medium viscosity is less than or greater, it needs to be customized
Protective performance
Explosion-proof mark Ⅱ
Wiring method Wiring seat type lead type
Valve body material stainless steel cast iron
Control mode normally open Normally closed
Power supply voltage ~ ~
Connection method Internal thread External thread flange
Zero leakage
Nominal diameter
Principle and structure direct-acting type step-by-step direct-acting type Pilot type
Sealing material BR copper
Valve body material precision cast ductile iron, special ambient temperature~explosion-proof~
Fluid temperature~
Applicable fluid gas
Fluid viscosity/ /The following can be specially made
Connection method internal threaded flange
Installation method horizontal installation, coil upward other ways can be customized
Protection level ordinary type, explosion-proof type
Brand Germany R Olschen
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