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The working temperature, that is, the ambient temperature, taking the Danfoss solenoid valve as an example, its normal working environment temperature is: -20 degrees Celsius 60 degrees. Hope.
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Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:
The following are the top ten domestic first-line valve brand manufacturers in 2022-2023, but for reference only: Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.
First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.
These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.
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The temperature rise of the coil can only be known after calculating according to the specific parameters of the coil and the ambient temperature.
Solenoid valve (electromagnetic valve) is an industrial equipment controlled by solenoids, which is the basic element of automation used to control fluids, and belongs to actuators, not limited to hydraulics and pneumatics. It is used in industrial control systems to adjust the direction, flow rate, speed and other parameters of the medium. Solenoid valves can be combined with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed.
There are many kinds of solenoid valves, and different solenoid valves play a role in different positions of the control system, the most commonly used are check valves, safety valves, directional control valves, speed regulating valves, etc.
Note: 1. When installing, it should be noted that the arrow on the valve body should be consistent with the flow direction of the medium. Do not install in places where there is direct dripping or splashing water. The solenoid valve should be installed vertically upward;
2. The solenoid valve should ensure that the power supply voltage is within the fluctuation range of 15%-10% of the rated voltage;
3. After the solenoid valve is installed, there shall be no reverse pressure difference in the pipeline. And it needs to be energized several times to make it suitable for temperature before it can be officially put into use;
4. The pipeline should be thoroughly cleaned before the solenoid valve is installed. The incoming medium should be free of impurities. Valve pre-installed filter;
5. When the solenoid valve fails or is cleaned, in order to ensure the continuous operation of the system, a bypass device should be installed.
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High pressure solenoid valve optional parameter range:
Product Specifications: Applicable Pressure: , Minimum Starting Pressure.
Body Material: Stainless Steel.
Applicable medium: gas, water, oil, steam, gas, corrosive fluid.
Medium temperature: -100 +200 .
Media viscosity: less than 50cst (more than 50 needs to be customized).
Protective performance: waterproof, explosion-proof (EXD IICT5), anti-corrosion.
Spool Material: All stainless steel.
Wiring method: terminal seat type, lead type, plug type.
Control mode: normally open, normally closed.
Power supply voltage: DC12 127V; ac36~380v。
Connection: internal thread, flange, (external thread and special interface can be customized or add adapter) leakage: zero.
Working principle of high-pressure solenoid valve:
Normally closed: When the coil is energized, the solenoid core is engaged, the pressure relief hole is opened, and the main piston is pushed by the medium pressure, the main valve port is opened, and the medium flows. When the coil is de-energized, the main valve port closes and the medium is cut off.
Normally open: when the coil is energized, the solenoid core is engaged, the pressure relief hole is closed, the main piston is pushed by the medium pressure, when the coil is powered off, the main valve port is opened, and the medium flows.
Note: When the pressure at the outlet is greater than the pressure at the inlet, the medium will be reversed. A check valve or a solenoid valve with a check function can be customized.
For more information, please contact China solenoid valve households.
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Generally, a position of the valve is drawn in the diagram, such as the position of the oblique arrow, so that it is clear how the oil and gas circuit passes through the position of the valve. The second position is the position of the straight arrow, and the diagram of the straight arrow should be replaced with the position of the oblique arrow, which is connected with the oil and gas road. In this way, the direction of the oil and gas road changes.
There are several boxes on the solenoid valve diagram number representing several positions, generally there are 2 and three positions, and then look at a box with several contacts, generally there are three or five, the general valve is 2 positions of three ties, 2 positions of 5 ports single electronic control, 2 positions of 5 ports double electronic control, 3 positions of 5 links ** closed, 3 positions of 5 ports ** exhaust, 3 positions of 5 ports ** pressurized type. The 3-bit 5-way are all double electronically controlled point heads, and the number of point heads can be judged by looking at the mark of the little head on the drawing number.
The solenoid valve of the refrigerator is at the bottom of the refrigerator! Open the lid at the bottom of the refrigerator, and there is a black valve body on the left side of the compressor. Its main function is to distribute the flow of refrigerant and control the temperature of each chamber.
The air conditioner solenoid valve is inside the air conditioner main unit. The working principle of the air-conditioning solenoid valve is that after the air-conditioning solenoid valve is energized, the electromagnet is engaged, and the sealing block with a spring on the upper part of the moving iron core closes the exhaust port, and the airflow enters the membrane head from the air inlet to play a controlling role. When the power is lost, the electromagnetic force disappears, the moving iron core leaves the fixed iron core under the action of spring force, moves downward, opens the exhaust port, blocks the air inlet, the membrane head is discharged through the exhaust port, and the diaphragm returns to its original position; When there is a current passing through the coil, the excitation effect is generated, the fixed iron core attracts the moving core, and the moving iron core drives the spool and compresses the spring, changing the position of the spool spool, thereby changing the direction of the fluid that is balanced.
When the coil loses power, the elastic force of the spring pushes the spool and pushes back the core to make the fluid flow in the original direction. Extended Information When the air conditioner is started, the electromagnetic coil generates electromagnetic force to cause the valve to open and the refrigerant to act. The temperature sensor outputs an analog voltage signal, and the specific temperature required to open the solenoid valve has to be adjusted and set, and the circuit is very simple.
The temperature sensor voltage signal is added to the base of the power triode tube to control the working state of the triode, and the collector and emitter of the triode can control the on/off of the solenoid valve.
The temperature sensor only outputs the signal to detect the temperature, and cannot directly control the solenoid valve, the relatively simple and economical control is to use a temperature control meter to connect the temperature sensor, and the temperature control meter output is connected to the relay, and then the relay collapser to control the solenoid valve.
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Product Specifications: Body Material: Stainless Steel Applicable Medium:
Oil, steam, corrosive fluids, etc. Temperature range: +300 +450 Protection: moisture-proof, explosion-proof (EXD IICT5), Buchan anti-corrosion Wiring square Bibi type:
Terminal Seat Type; Leaded; Plug-in Huichen head control mode: normally open, normally closed Power supply voltage: DC24 127V;AC36 380V Connection:
Female threads, flanges (external threads and special interfaces can be customized or with adapters).