Steam solenoid valve explosion-proof level specification
2020-08-04 13:18:13
Explosion-proof steam solenoid valves enclose all parts of the equipment that may ignite an explosive gas mixture in an enclosure that can withstand any joint or structural gap through the enclosure. The flammable mixture that penetrates inside the enclosure explodes inside without damage, and It will not cause the external ignition of an explosive environment formed by one or more gases or vapors. Parts that may generate sparks, arcs, and dangerous temperatures are placed in a flameproof enclosure. The explosion-proof enclosure makes the interior space of the device and the surrounding Separated by the environment. There is a gap in the flameproof enclosure, and due to the respiration of the electrical equipment and gas permeation, an explosive gas mixture may exist inside.
Explosion-proof steam solenoid valve features:
(1) External leakage is blocked, internal leakage is easy to control, and safety is used. Internal and external leaks are elements that endanger safety. Other self-control valves usually extend the valve stem and the spool, which is controlled by the electric, pneumatic and hydraulic actuators, can rotate or move. This must solve the problem of external leakage of the valve stem dynamic seal during long-term operation; only the solenoid valve is operated by the electromagnetic force acting on the core sealed in the magnetic isolation sleeve of the electric control valve. There is no dynamic seal, so the leakage is easy to block. . Electric valve torque control is not easy, easy to produce internal leakage, and even pull off the stem head; the structure of the solenoid valve is easy to control the internal leakage until it is reduced to zero. Therefore, the solenoid valve is particularly safe to use, especially for corrosive, toxic or high-low temperature media.
(2) The system is simple, then it is connected to the computer, the price is low and modest. The solenoid valve itself has a simple structure and a low price, and is easier to install and maintain than other types of actuators such as regulating valves. What is even more remarkable is that the self-contained system is much simpler and the price is much lower. Because the solenoid valve is a switch signal control, it is very convenient to connect with the industrial control computer. In today's era of widespread computer availability and sharply lower prices, the advantages of solenoid valves are even more pronounced.
(3) Action express, small power, light weight. Solenoid valve response time can be as short as several milliseconds, and even pilot solenoid valves can be controlled within tens of milliseconds. Because of self-looping, it reacts more sensitively than other self-controlled valves. Well-designed solenoid valve coil power consumption is very low, is an energy-saving product; can also be achieved simply trigger action, automatically maintain the valve position, usually no power at a time. The electromagnetic valve has a small size, which saves space and is light and beautiful.
(4) The adjustment accuracy is limited and the applicable medium is limited. Solenoid valve usually only two kinds of switch state, the valve can only be in two extreme positions, can not be continuously adjusted, (a lot of new ideas trying to break through, but are still in the experimental trial phase) so the adjustment accuracy is also subject to certain restrictions.
Explosion-proof steam solenoid valve Explosion-proof grade Description: IIB can be used in the explosive mixture environment of IIB gas and air. The explosion-proof grades are divided into I (mine) and II (plant). Class II is further divided into: IIA, IIB, IIC (Security Level: A
Shenzhen Newway Valve reminds you that when you are selecting an explosion-proof steam solenoid valve, you need the following main points:
If you are preparing to purchase imported steam solenoid valves or are designing steam pipes, if there is a need to use steam solenoid valves, then our technical department will provide you with the following procurement details for reference only!
(1) Working temperature and ambient temperature on the steam pipe (2) Working pressure of solenoid valve (3) Passage of steam pipe (4) Appropriate material can be selected according to actual working conditions (5) According to the size of pipe For the proper connection method (6), the appropriate control method can be selected according to the control requirements: such as manual, electric, pneumatic (can achieve remote control)
Explosion-proof steam solenoid valve features:
(1) External leakage is blocked, internal leakage is easy to control, and safety is used. Internal and external leaks are elements that endanger safety. Other self-control valves usually extend the valve stem and the spool, which is controlled by the electric, pneumatic and hydraulic actuators, can rotate or move. This must solve the problem of external leakage of the valve stem dynamic seal during long-term operation; only the solenoid valve is operated by the electromagnetic force acting on the core sealed in the magnetic isolation sleeve of the electric control valve. There is no dynamic seal, so the leakage is easy to block. . Electric valve torque control is not easy, easy to produce internal leakage, and even pull off the stem head; the structure of the solenoid valve is easy to control the internal leakage until it is reduced to zero. Therefore, the solenoid valve is particularly safe to use, especially for corrosive, toxic or high-low temperature media.
(2) The system is simple, then it is connected to the computer, the price is low and modest. The solenoid valve itself has a simple structure and a low price, and is easier to install and maintain than other types of actuators such as regulating valves. What is even more remarkable is that the self-contained system is much simpler and the price is much lower. Because the solenoid valve is a switch signal control, it is very convenient to connect with the industrial control computer. In today's era of widespread computer availability and sharply lower prices, the advantages of solenoid valves are even more pronounced.
(3) Action express, small power, light weight. Solenoid valve response time can be as short as several milliseconds, and even pilot solenoid valves can be controlled within tens of milliseconds. Because of self-looping, it reacts more sensitively than other self-controlled valves. Well-designed solenoid valve coil power consumption is very low, is an energy-saving product; can also be achieved simply trigger action, automatically maintain the valve position, usually no power at a time. The electromagnetic valve has a small size, which saves space and is light and beautiful.
(4) The adjustment accuracy is limited and the applicable medium is limited. Solenoid valve usually only two kinds of switch state, the valve can only be in two extreme positions, can not be continuously adjusted, (a lot of new ideas trying to break through, but are still in the experimental trial phase) so the adjustment accuracy is also subject to certain restrictions.
Explosion-proof steam solenoid valve Explosion-proof grade Description: IIB can be used in the explosive mixture environment of IIB gas and air. The explosion-proof grades are divided into I (mine) and II (plant). Class II is further divided into: IIA, IIB, IIC (Security Level: A
Shenzhen Newway Valve reminds you that when you are selecting an explosion-proof steam solenoid valve, you need the following main points:
If you are preparing to purchase imported steam solenoid valves or are designing steam pipes, if there is a need to use steam solenoid valves, then our technical department will provide you with the following procurement details for reference only!
(1) Working temperature and ambient temperature on the steam pipe (2) Working pressure of solenoid valve (3) Passage of steam pipe (4) Appropriate material can be selected according to actual working conditions (5) According to the size of pipe For the proper connection method (6), the appropriate control method can be selected according to the control requirements: such as manual, electric, pneumatic (can achieve remote control)
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