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This post was last edited by diateng on 2025-7-8 15:09. How can one choose an electromagnetic valve that is suitable for oneself? The selection criteria for solenoid valves generally include several factors; for example, for brands such as Peter Paul in the United States, ASCO, and PARKER: 1. Valve type (number of positions and ports)? 2. Medium? (Air, hydrogen, water, or gasoline?) 3. Power supply voltage (generally, these three major brands in the United States offer a wide range of voltage values: Peter Paul: AC: 1.5~825V; DC: 1.5~575V; the same is true for ASCO and Parker.) 4. Pressure (the pressure difference between the inlet and outlet, or whether there is backpressure, etc.)? 5. Path length, or in other words, the flow rate? (For domestically produced solenoid valves, if we are considering flow coefficient values such as CV and KV, we usually take 70% of their nominal values when making selections; however, for Peter Paul, ASCO, and PARKRE, we can use their nominal values directly.) 6. Switch response time? (This parameter is usually subject to strict requirements in medical or analytical instruments. Domestically produced products generally haven’t been tested for this parameter; their response times are usually over 1 second. For example, ASCO and Peter Paul have liquid-switch response times of 4–16 milliseconds, and air-switch response times of 4–10 milliseconds. Of course, this must be tested under specific pressure conditions and with different media.) 7. Duty cycle (continuous or intermittent)? 8. Power consumption: Domestic engineers no longer pay much attention to this parameter, but abroad it is usually in the range of a few watts; Peter Paul, ASCO, and PARKER models typically have a power consumption of around 7 watts. Of course, nowadays they design valves with lower power consumption, with values below 3 watts, including some models with 0.5W or 0.18W... Valve model: EW52N8DCCP ； 12VDC ； EW52N8DCCP ； 24VDC, Solenoid Valves: EW52N8DCCP ； 12VDC ； EW52N8DCCP ； 24VDC9. What are the flow rate requirements? 10. Sealing level (There are no strict design requirements for this in domestically produced products. For Peter Paul, ASCO, and PARKER, there is basically zero leakage, of course meaning zero leakage both internally and externally.) 11. Burst pressure (Failure pressure; the pressure at which a solenoid valve fails. The damage pressure ratings for Peter Paul, ASCO, and PARKER are 5000 PSI; naturally, some models have even higher ratings.) 12. Vacuum level (Solenoid valves produced by U.S.-based company Peter Paul come with filters; in cases where no filters are provided, the vacuum level is generally 5 microns.) 13. What are the pipe connection specifications? 1/4NPT？ G1/4？ 14. Medium temperature? Ambient temperature? Coil temperature rise requirements, etc., 15. Explosion protection rating? 16. Self-locking or three-way diverter? Functional options. Generally, engineers responsible for the design and selection of solenoid valves need to evaluate these parameters. Of course, there are many brands of solenoid valves available today, but the manufacturers that are truly capable of conducting systematic research, designing, and producing valves with the desired performance characteristics are Peter Paul, ASCO, PARKER, IM, and Rexroth. These items are very small and often go unnoticed by engineers; as a result, the costs for end-users increase imperceptibly! Among those that do well in low-power explosion-proof technology are Peter Paul, ASCO, and PARKER ； Companies that excel in high-pressure explosion protection include Peter Paul and ASCO; can domestic manufacturers do the same? It’s possible to do it, but not only is the volume large, the power consumption is also high, and the cost isn’t low either! https://cbu01.alicdn.com/img/ibank/O1CN01CAHlqv1uRcWzcmkYW_!!934146034-0-cib.jpg?__r__=1617247968834 A negative-pressure solenoid valve is essentially a vacuum solenoid valve. In fact, both negative-pressure and vacuum solenoid valves are required to have 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 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 diameters ranging from 0.5 mm to 50 mm, and support a wide range of power sources. A high-pressure solenoid valve that can be used with both gas and liquid. 70MPa solenoid valve, direct-acting high-pressure solenoid valve, zero-leakage solenoid valve. If you need solenoid valves, just contact Shenzhen Diateng Electromechanical Equipment Co., Ltd.; we can provide solenoid valves to meet all your requirements. www.diateng.com Solenoid valve 21X00460KM, 24VDC ； 26X00770KM ； 26X00780KM ； 52X03340KM ； 52X05550KM ； 71Z0172EGV ； O22Z0062ACM ； 23JK9ZASP ； O53Z0098JCP;O72X00080GMO72X00050GM;O72X00100GM;O72X00070GM;O72X00110GM;O72X00060GM; O72X00090GM52Z0022NGM ； 52Z0991NGM ； Solenoid valve 152X00111ELM; OE23HJDZCCM; OE53HJDXCCM; 21K9ZGM, 52X05650GP; 21X00770CM; 24VDC; 22K7DELM; 22N9DGM-B; 22X00821GM ； 22X02480GM; 22X02840EM; 22X03650GM; 22X07240ELM; solenoid valve 23GG7XGM; 22J9DGM; 23JJ9DELM; 23X00930ADP; 23X02200GM; 23X02310GM; 23X02660ELM; 26Z0225NCM; 32Z0028JSGM; H22X01580GM50-30458; 51X00041GD; 51Z0001TCCD; solenoid valve 72X00950CH; 51Z0003TCCD; 51Z0005TCCD; 51Z0009TGD; 51Z0010NGB; 51Z0127NKM; 52X00400KM; 52X01850GB; 52X05350GH; 52X05570GB; solenoid valve 52X05650GP; 52X05780EM; 52Z0004TSGB; solenoid valve 52Z0022NGB; 52Z0023ZKM; 52Z0029NGM; 52Z0915LSGB; 52Z0951AKM; 52Z0991NGM; 52Z1071AGM; 53X00061GB; 53X00081GB; 53X00101GD; 53X00141GB; 53X00180YM; 53X00291KM; 53Z0049TGB; 54Z0002ZKM; 32X00450KM; solenoid valve 54Z0027ZKM; 56X00680GB; 56X00680GM; 71Z0172EGV; 72T10DCM; 72X00021GV; 72X00201GH; 72X00650CH; 72X00950CH; 72Z0016NSGM; O52X00640GM; 52X005800GH; 52X04160GB; 52X04160GM ； O22Z0061TCCV;O22Z0101TCCV;O22Z0001TGH; 51Z0009TGD ; 51Z0007TCCD; OH22HCDSPG;OEW53Z0002TCCP; OELL53GGDXCCM ; Solenoid valve OE53HHDDCCM ; OE23X00100CCP ; OE23X00090CCP; OE23JKDDCCM ;OEL530031NCCM; OE23HJDZCCM; O153X00091EM ; O152JDDEM; O72X00070GM; Solenoid valve O52Z0117JCP ; O52Z0094DGM; O52X00640GM ; O22Z0091TCCV ; LW52H8DGM;L582X00080DGM; L582A21DGM ; Solenoid valve 52Z0004TSGB; H23MM9DCM ； H22X01780CV ； H22X02100ELM ； H22X02810ELM ； H22X01610GV ； H22X01460GV ； EL53Z0004YCCM ； EL51X0001SCCP ； EH22Z0046SCCM ； Solenoid Valve EL53Z0023SCCP ； EH22M7DCCM ； EH22H7DCCMLH22G9DGM,H22G9DCV,H22G9DCM,H22H9DGMG,H22H9DCVL,H22H7DCVL,H22H7DGVG56Z0105NGB ； E260094NCCM ； E828D23DCCP ； E26X00280CH ； E23Z0142NCCM ； 100008172 ； 100008171 ； 51X00051GD ； solenoid valve 829B11DGM ； 827B12DCV ； 582X00410GM ； 582X00370DGM ； 582F24DGM ； 152X01170GM ； 152X01100EM ； 152X00140GM ； 76Z0143LGM76X0095GM ； 73Z0158NCV ； 72Z0319NSCP. Shenzhen Deteng Electromechanical Equipment Co., Ltd. is the first supplier in China to offer deep-sea submersible high-pressure seawater solenoid valves, seawater solenoid valves, and energy-saving solenoid valves for deep-sea applications. It supplies thousands of sets of high-pressure seawater solenoid valves with pressures of 3000 PSI (21 Mpa) and 6000 PSI (42 Mpa) to domestic providers of deep-sea equipment; these valves are capable of operating without continuous power supply and are resistant to seawater corrosion. The seawater solenoid valves do not require constant power to function, while the energy-saving solenoid valves only need a brief power supply to maintain their on/off state. The 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. Especially with the current government incentives, many manufacturers fail to pay attention to detailed aspects, which leads to 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 during operation, and we use special materials resistant to seawater corrosion. These include deep-sea submersible 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, featuring a conical seal, ensures an adequate contact area and reduces flow resistance. With a maximum pressure of 100 MPa, these are direct-acting ultra-high-pressure solenoid valves with a conical design that guarantees zero leakage at high pressures. They are also high-flow, high-pressure solenoid valves with zero leakage. Whether it’s direct-acting high-pressure solenoid valves or zero-leakage solenoid valves, including those that can operate at low temperatures, Shenzhen Deteng Electromechanical Equipment Co., Ltd. has the right low-power, zero-leakage solenoid valves for your needs. Even some new component suppliers, lacking any experience, claim to be able to provide 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. 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. Please 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 cone-shaped seals that ensure proper contact area and reduce flow resistance. Maximum pressure: 100 MPa. These are direct-acting ultra-high-pressure solenoid valves with a cone-shaped design that guarantee zero leakage at high pressures. High-flow high-pressure solenoid valves, zero-leakage direct-acting high-pressure solenoid valves, zero-leakage solenoid valves, low-temperature zero-leakage solenoid valves, 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 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 types require 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 diameters 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 valve, direct-acting high-pressure solenoid valve, zero-leakage solenoid valve. If you need solenoid valves, just contact Shenzhen Diateng Electromechanical Equipment Co., Ltd.; we can provide solenoid valves to meet all your needs. www.diateng.com Deep-sea solenoid valves, energy-saving solenoid valves for seawater, seawater