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Solenoid valve some of the characteristics and points of knowledge
This article introduces you to the solenoid valve product features and points of knowledge? Mainly from the technical characteristics, the selection of key points and the construction and installation summary of some of the knowledge about the solenoid valve. (1) Blockage of external leakage, internal leakage easily controlled, safe to use. Internal and external leaks are elements that endanger safety. Other self-control valve stem usually stick out by the electric, pneumatic, hydraulic actuator control spool rotation or movement. This must solve the long-term movement of the valve stem seal leakage problems; only the electromagnetic valve is the role of electromagnetic force sealed in the electric control valve magnetic sleeve complete iron core, there is no dynamic seal, so easy to block leakage . Electric valve torque control is not easy, prone to internal leakage, and even pulled off the stem head; structure of the solenoid valve easy to control the internal leakage until it drops to zero. Therefore, the use of special safety solenoid valve, especially for corrosive, toxic or high temperature medium. (2) The system is simple, then the computer, low prices Qian. Solenoid valve itself is simple, the price is low, compared to other types of actuators such as regulating valve easy to install and maintain. Even more remarkable is the composition of the control system is much simpler, the price is much lower. As the solenoid valve is the switch signal control, and industrial computer connection is very convenient. In today's popularization of computers, the price plummeted era, the advantages of the solenoid valve even more pronounced. (3) action express delivery, power is small, lightweight appearance. Solenoid valve response time can be as short as a few milliseconds, even the pilot solenoid valve can be controlled within a few tens of milliseconds. Since the self loop, more responsive than other self-controlled valves. Well-designed solenoid valve coil power consumption is very low, is an energy-saving products; can also be done only trigger action, automatically maintain the valve position, usually do not consume electricity. Solenoid valve small size, saving space, but also lightweight and beautiful. (4) regulation accuracy is limited, the applicable medium is limited. Solenoid valve usually only switch two states, the spool can only be in two extreme positions, can not be adjusted continuously (trying to break a lot of new ideas, but are still in the trial stage of the trial) so the regulation accuracy is subject to certain restrictions. Solenoid valve on the media have a higher cleanliness requirements, including granular media can not be applied, in the case of impurities must be filtered out. In addition, viscous media can not be applied, and the range of viscosities for specific products is relatively narrow. (5) Model variety, wide range of uses. Despite the inherent lack of solenoid valve, the advantages are still very prominent, so it is designed into a wide range of products to meet a variety of different needs, a very wide range of uses. Solenoid valve technology is also progress around how to overcome the inherent deficiencies, how to better play its inherent advantages and expand. First, the product selection points 1. Solenoid valve selection The main control parameters for the path, the design of nominal pressure, the media allows the temperature range, interface size and so on. 2. Solenoid valve is the use of electromagnet to promote the valve on and off, usually used for two-caliber control below 40mm, especially for the connection, cut off or switch gas, liquid and so on. 3. The valve sealing performance is one of the main indicators of the quality of the valve examination. Valve sealing performance mainly includes two aspects, namely, internal leakage and leakage. Internal leakage refers to the degree of sealing of the medium between the valve seat and the closing member. Leakage refers to the leakage of the stem packing, the leakage of the gasket in the middle mouth, and the leakage of the valve body due to casting defects. Leakage is not allowed to happen. 4. Solenoid valve main advantage is small size, reliable action, easy maintenance, cheap. Select the need to pay attention to the process requirements to choose normally open or normally closed type. Second, the construction and installation points 1. Valve installation location, the height must meet the design requirements in line with the direction of the mouth, the connection should be strong and tight. 2. The valve must be installed before the appearance inspection, the valve nameplate should be consistent with the current national standard GB12220 "General Valve logo" requirement. Third, the implementation of standard product standards GB / T13927-92 "General Valve Pressure Test" JB / T8528-1997 "general-type valve electric device technical conditions" GB12220-89 "General Valve Signs" Engineering Standard GB50243-2002 "ventilation and air conditioning construction Quality Acceptance Code "GB50242-2002" Building Water Supply and Drainage and Heating Engineering Construction Quality Acceptance Code "some of the characteristics and essentials of the solenoid valve Know, you are familiar with these knowledge? If we are in the choice of solenoid valve manufacturers must choose a company that makes us feel relieved, the product's technology certainly needs professional support, choose a good brand will have a good guarantee, Anhui SECCO environmental protection solenoid valve products hope to Get your trust.