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This post was last edited by diateng on 2025-7-8 15:10. Question: Is there an electromagnetic valve that doesn’t require power supply? An electromagnetic valve that doesn’t need a power source for long periods of operation, and that doesn’t require continuous power supply? Shenzhen Deteng Electromechanical Equipment Co., Ltd.: Yes, our company provides high-tech self-locking and magnetically retained solenoid valves ； For a normally closed solenoid valve, a signal power supply is required for 50 ms immediately after power is applied to open the valve; no power is needed to maintain its operating state. Question: Why is it possible to maintain a switch state without continuous power supply? Could you explain the working principle of a solenoid valve? Shenzhen Deteng Electromechanical Equipment Co., Ltd.: Our self-locking and magnetically latching solenoids utilize rectifier coils as well as additional electronic components to ensure that a small current is generated by the inductive coil after power is applied or removed, thereby maintaining the desired state. As a result, our self-locking and magnetically latching solenoids feature low power consumption, along with minimal temperature rise (the temperature increase of the solenoid coil is very small). Question: In which industries or devices are the self-locking and magnetically held solenoid valves produced by your company, Shenzhen Deteng Electromechanical Equipment Co., Ltd., generally used? Shenzhen Deteng Electromechanical Equipment Co., Ltd.: Our self-locking and magnetically held solenoid valves are generally suitable for use in handheld mobile instruments or equipment. They require a certain level of power supply, and the power consumption of these solenoid valves is relatively high; they are particularly suitable for use in medical and biochemical analysis instruments. They are the most appropriate choice in situations where the instruments have high requirements regarding coil heating, and where the operating environment imposes strict constraints on the temperature rise of the equipment. In terms of manufacturing processes, we continue to prioritize zero leakage and a long service life. Question: Is there a non-heating solenoid valve that can operate for a long time? What are the advantages of solenoid valves that do not generate heat during long-term operation? Shenzhen Deteng Electromechanical Equipment Co., Ltd.: Our self-locking and magnetically held solenoid valves do not require a continuous power supply to function; as a result, they do not generate heat. Since there is no heat generation, there is also no heat transfer to the components of the instrument’s flow channels or to the medium itself ； This will make the measurement and analysis data more accurate. Question: What is the power consumption per hour for your self-locking, magnetically latching solenoid valve? What’s the power? What is the external volume? Shenzhen Deteng Electromechanical Equipment Co., Ltd.: Our self-locking and magnetically retained solenoid valves consume approximately 1 watt of power per hour. Their size is similar to that of an egg, with dimensions of 3*6 cm in width and height. Of course, we offer a wider range of voltage options for customers to choose from, which makes it more convenient for them to integrate these devices into their systems. Feel free to contact Shenzhen Deteng Electromechanical Equipment Co., Ltd. for a win-win partnership! A negative pressure solenoid valve is essentially a vacuum solenoid valve; in fact, both negative pressure and vacuum solenoid valves require a leakage rate of zero ； Only in this way can vacuum extraction and operation under negative pressure be ensured. Therefore, for a negative pressure solenoid valve, it is essential that its leakage rate be zero. How is the leakage rate of such a solenoid valve determined? It is based on the negative pressure value of the valve Normally, negative pressure solenoid valves require an extremely low leakage rate; they are commonly referred to as zero-leakage solenoid valves, negative pressure solenoid valves, or vacuum solenoid valves. Our zero-leakage solenoid valves, vacuum solenoid valves, and negative pressure solenoid valves have been used in conjunction with mass spectrometers from companies such as Agilent, Bruker, and Thermo Fisher for 20 years. Vacuum solenoid valves and negative pressure solenoid valves are areas in which we possess specialized expertise; feel free to contact us for more information. Shenzhen Deteng Electromechanical Equipment Co., Ltd. is the first company in China to supply high-pressure seawater solenoid valves, seawater solenoid valves, and energy-saving solenoid valves for deep-sea applications. We provide thousands of sets of high-pressure seawater solenoid valves with pressures of 3000 PSI (21 Mpa) and 6000 PSI (42 Mpa) to domestic suppliers of deep-sea equipment. These solenoid valves are leak-free and resistant to seawater corrosion. Moreover, these seawater solenoid valves do not require continuous power supply to function; energy-saving solenoid valves only need to be powered for a few milliseconds to maintain their on/off state. Our high-pressure seawater solenoid valves are made from special materials, such as Monel alloy. We have many years of experience in the application of solenoid valves in deep-sea equipment. With government incentives currently in place, many manufacturers fail to pay attention to detailed aspects, resulting in various problems such as high energy consumption in deep-sea control systems and issues related to seawater corrosion. Our deep-sea solenoid valves do not require continuous power supply, and we use special materials that are resistant to seawater corrosion. We offer deep-sea diving solenoid valves, seawater solenoid valves, energy-saving solenoid valves for deep-sea use, high-pressure seawater solenoid valves, and zero-leakage high-pressure solenoid valves. Their unique sealing design, with cone-shaped seals, ensures optimal contact area and reduces flow resistance. These solenoid valves can handle pressures up to 100 MPa; they are direct-acting ultra-high pressure solenoid valves with a cone-shaped design that guarantees zero leakage at high pressures. They are also high-flow, high-pressure solenoid valves that are leak-free. Whether you need any type of solenoid valve, Shenzhen Deteng Electromechanical Equipment Co., Ltd. has the right low-power, zero-leakage solenoid valve for you in its product portfolio. Some recent component suppliers, without any actual experience, claim to be able to supply high-pressure solenoid valves, filters, and other products, causing losses for many domestic companies. We have over 100 years of experience in manufacturing solenoid valves, with extensive expertise in the optimized design of fluid control systems. We also have more than a decade of experience in the use of these valves in hydrogen-related applications in the United States. You need to be particularly careful when choosing solenoid valves for hydrogen use; our valves are designed for high-pressure, high-temperature, as well as ultra-low temperature applications ； Without decades of experience in manufacturing high-pressure special solenoid valves, as well as experience in hydrogen applications, it is impossible to ensure the efficiency and reliability of your hydrogen equipment ； There are low-pressure solenoid valves for hydrogen fuel cells, and we also offer high-quality products for these. The commonly used pressure rating for seawater solenoid valves internationally is 21 Mpa. At present, Shenzhen Deteng Electromechanical Equipment Co., Ltd. is able to supply seawater solenoid valves, submersible solenoid valves, and deep-sea solenoid valves with a pressure rating of up to 100 MPa; currently our main products are those with 21 Mpa and 42 Mpa pressure ratings. In the future, we will continue to develop seawater solenoid valves of various flow rates and pressure ratings that meet market demands. The highest pressure level achievable through our technology is 10,000 PSI (100 MPa), which provides a technical foundation for further expansion in the market. The high-pressure seawater solenoid valves we offer have a pressure rating of 42 Mpa ； Over the next decade, the scale of China’s marine economy industry is expected to reach 10 trillion. Currently, various companies in this sector are actively contributing to its development, including those involved in seawater drilling platforms, AUVs, ROVs, and other deep-sea drones. Product technical specifications: two-position normally open or two-position normally closed type. 1. Power supply voltage: 12VDC, 24VDC, 27VDC, 48VDC... ； 2. Working pressure: ~6000 PSI (42MPa) ； 3. Voltage withstanding test pressure: 10,000 PSI (70 MPa) ； 4. Blasting pressure: 15,000 PSI (100 MPa); 5. Bore diameter (effective flow diameter): 0.6 mm, 6 mm, 12 mm….; 6. Switching time: 0.02 seconds ； 7. Safety certification level: Ex mb IIC T4 or T5, Ex tb IIIC T130℃ to 90℃; Protection rating: NEMA 3, 3S, 4, 4X, 7, 9...; 8. The product has a compact design, occupies very little space, and is easy to install. Its dimensions are as shown in the figure below. Shenzhen Deteng Electromechanical Equipment Co., Ltd. specializes in providing high-tech products. It is a supplier of core components for hydrogen fuel cells, such as deep-sea high-pressure solenoid valves, seawater solenoid valves, high-pressure explosion-proof solenoid valves for hydrogen, and precision high-pressure filters. Feel free to call for inquiries; online transactions are not provided. Special high-pressure seawater solenoid valves for deep-sea equipment, seawater filters, energy-saving seawater solenoid valves. Zero-leakage high-pressure seawater solenoid valves with a unique sealing structure and conical sealing design to ensure adequate contact area and reduce flow resistance. Maximum pressure: 100 MPa. Direct-acting ultra-high-pressure solenoid valves with a conical design to ensure zero leakage at high pressures. High-flow high-pressure solenoid valves, zero-leakage direct-acting high-pressure solenoid valves, zero-leakage solenoid valves for low temperatures, high-pressure zero-leakage solenoid valves, high-pressure direct-acting solenoid valves. No matter what type of solenoid valve you need, Shenzhen Deteng Electromechanical Equipment Co., Ltd. has the right zero-leakage solenoid valve for you. Please feel free to call for inquiries; we are available 24 hours a day. https://cbu01.alicdn.com/img/ibank/O1CN01CAHlqv1uRcWzcmkYW_!!934146034-0-cib.jpg A negative pressure solenoid valve is essentially a vacuum solenoid valve; in fact, both negative pressure and vacuum solenoid valves require a zero leakage rate ； Only in this way can vacuum extraction and operation under negative pressure be ensured. Therefore, for a negative pressure solenoid valve, it is essential that its leakage rate be zero. How is the leakage rate of such a solenoid valve determined? It is based on the negative pressure value of the valve Normally, negative pressure solenoid valves require a very low leakage rate; they are also known as zero-leakage solenoid valves, negative pressure solenoid valves, or vacuum solenoid valves. There are also micro-high-frequency solenoid valves and high-frequency solenoid valves, with a maximum frequency of 100 Hz or 200 Hz ； High-frequency solenoid valves can be used for pressure compensation, as well as as regular solenoid valves to regulate flow and compensate for pressure. High-frequency solenoid valves are cheaper than regular ones and yet reliable. Our leak-free solenoid valves are designed specifically for analytical instruments, environmental testing equipment, biochemical instruments, and custom leak detection devices; they operate in a pressure range of vacuum to 15,000 PSI (104 MPa), with bore sizes ranging from 0.5 mm to 50 mm, and support a wide range of power sources. Common applications of naval/marine valves include: high-pressure solenoid valves for seawater, high-pressure solenoid valves with zero leakage for seawater; reverse osmosis (RO) systems; fuel transfer systems; seawater/bilge water systems; underwater drones AUVs, deep-sea submersibles, deep-sea drilling platforms, etc. High-pressure solenoid valves that can be used with both gas and liquid. 70MPa solenoid valves, direct-acting high-pressure solenoid valves, zero-leakage solenoid valves. If you need solenoid valves, simply turn to Shenzhen Diateng Electromechanical Equipment Co., Ltd.; we can provide solenoid valves that meet all your requirements. www.diateng.com – subsea solenoid valves, energy-saving solenoid valves for seawater use. Scan the QR code to add us on WeChat for more information on fluid control components and related technological details! Shenzhen Diateng Electromechanical Equipment Co., Ltd. Phone: 0755-86575299 Website: http://www.diateng.com