Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

Steam solenoid valve
Explosion-proof solenoid valve
Corrosion-resistant solenoid valve
Low temperature solenoid valve
High temperature and high pressure solenoid valve
Solenoid valve for water, gas, and liquid
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solenoid valve

Solenoid Valve Models: DFD / RSP / 2W / ZW / YSA / ZCF / PS / RSH / 2L / GWDRY / YSE / RSPS / ZCT / YSI / YSP / SLDF / ZCM / ZK / EX / ZCSB / YSG / RSZ / YSZ / RSQ / RSV / RSC / UD / VX2 / RSSM / RSW / RST / RSO / CDW / ZCZ / ZQDF / 231 / VMI / YSF Solenoid valves are industrial actuation components that use electromagnetic force to automatically control the on/off of fluids (liquids or gases), and they are among the core fundamental components for achieving automation control. Their core working principle is based on electromagnetic induction: when the solenoid coil is energized, it generates a magnetic field that attracts the internal valve core (moving iron core), thereby changing the state of the fluid passage. When power is cut off, the valve core returns to its initial state by spring force. This electrical control method allows seamless integration with control systems such as PLCs, enabling remote and fast automated operations.Kaivex Valve Group produces a wide variety of solenoid valves. Based on the mode of operation, they are mainly divided into direct-acting type (relying directly on electromagnetic force for actuation, suitable for low-pressure and small-diameter applications) and pilot-operated type (using the pressure difference of the medium to drive the main valve, suitable for high-pressure and large-diameter applications). According to the flow path function, they can be further divided into "2/2-way" valves that control single-path on/off, as well as "3/2-way" and "5/2-way" valves used for switching flow direction or controlling cylinders. With advantages such as fast response speed, compact structure, high reliability, and the ability to be driven solely by electrical signals, solenoid valves are widely used in many fields including industrial automation, water treatment, HVAC, automotive, and medical equipment.

Steam solenoid valve

Model：
PS/RSH/RSPS/ZCT/2L
Specification：
DN2.5~80mm
Pressure：
0.4~16bar
Material：
Brass, stainless steel

Steam Solenoid Valve Models: PS / RSH / RSPS / ZCT / 2L A steam solenoid valve is a solenoid valve specifically designed for automatic on/off control in high-temperature steam pipelines. Since steam has characteristics such as high temperature, high pressure, and a tendency to condense, steam solenoid valves differ significantly from ordinary solenoid valves in design and material selection. Their core feature is high-temperature resistance. The valve body is often made of stainless steel or forged copper, while internal sealing components must be made of temperature-resistant materials such as PTFE or graphite to withstand the continuous thermal effects of the medium. To prevent the coil from burning out due to high temperatures, the coil assembly is typically designed with a heat dissipation structure and uses high-temperature resistant insulating materials. In terms of structural type, the piston-type structure is more stable and durable under high-temperature conditions than the diaphragm type. Since steam can easily form condensate in pipelines, in order to prevent interference with the valve core operation, it is necessary to confirm the appropriate temperature resistance grade and minimum operating differential pressure based on the medium temperature and pressure during selection. Due to its fast closing action, care must be taken to prevent water hammer effects during installation, and a steam trap should be installed in the pipeline if necessary. The steam solenoid valves produced by Kaivex Valve Group are widely used in industries such as textiles, food processing, printing and dyeing, and medical sterilization equipment.

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Explosion-proof solenoid valve

Model：
Ex/ZCSB/ZCSB14.5N/ZCSB16N/ZCF
Specification：
DN1~200mm
Pressure：
0~300bar
Material：
Brass, stainless steel

Explosion-proof Solenoid Valve Models: Ex / ZCSB / ZCSB14.5N / ZCSB16N / ZCF An explosion-proof solenoid valve is an automation actuating component specifically designed for hazardous environments where flammable gases, vapors, or dust are present. Its core function is the same as that of an ordinary solenoid valve, i.e., using an electromagnetic coil to drive the valve core to control the on/off or direction of fluid flow. The core difference lies in its explosion-proof structure and enclosure. The enclosure of an explosion-proof solenoid valve typically complies with international or national standards (such as IECEx, ATEX, CNEx) for flameproof (Ex d), encapsulation (Ex m), or intrinsic safety (Ex i). In terms of working principle, it uses the strength of the enclosure to withstand an internal explosion without damage and prevents flame propagation to the outside; or it limits the electrical energy in the circuit to prevent sparks, arcs, or hazardous temperatures. The main features of the explosion-proof solenoid valves produced by Kaivex Valve Group include high ingress protection (typically IP65/IP67), corrosion resistance, and high reliability. They are widely used in fluid pipeline automation control systems in industries such as petroleum, chemical, natural gas, pharmaceuticals, and coal mining, serving as key equipment for remote control and interlock safety.

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Corrosion-resistant solenoid valve

Model：
2W-SL/YSA/ZCF-P/ZCF-X/ZCF-PX/ZCF-J/ZCF-5JC
Specification：
DN2~80mm
Pressure：
0~10bar
Material：
PA66 / UPVC / CPVC / PTFE / Stainless steel

Corrosion-resistant Solenoid Valve Models: 2W-SL / YSA / ZCF-P / ZCF-X / ZCF-PX / ZCF-J / ZCF-5JC A corrosion-resistant solenoid valve is a specialized control valve designed for strong acids, strong alkalis, salt solutions, oxidizing agents, and various corrosive chemical fluids. Its core value lies in the use of special corrosion-resistant materials for the valve body, seals, and internal components that come into direct contact with the medium. Common valve body materials include: engineering plastics (such as PTFE, polypropylene PP), stainless steel (primarily 316L or duplex stainless steel, which offer the best corrosion resistance), and special alloys (such as Hastelloy, Monel, titanium). Sealing materials typically include FKM fluoroelastomer, EPDM, FFKM perfluoroelastomer, or PTFE itself to resist corrosion from different chemicals. In terms of structural type, direct-acting (zero-pressure start) or floating designs are often preferred to avoid sticking caused by fine particles. Some models use an isolated diaphragm structure to ensure complete separation of the fluid from the moving metal core. The solenoid valves produced by Kaivex Valve Group are widely used in fine chemicals, electroplating lines, semiconductor cleaning, pharmaceuticals, seawater desalination, and environmental water treatment.

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Low temperature solenoid valve

Model：
DW/CDW
Specification：
DN15~50mm
Pressure：
0.4~10bar
Material：
Stainless steel

Cryogenic Solenoid Valve Models: DW / CDW A cryogenic solenoid valve is an automatic control valve specifically designed for cryogenic applications where the medium temperature is below -20°C. Typical operating temperature ranges cover -40°C to -196°C (liquid nitrogen temperature). It is widely used in pipeline control for cryogenic fluids such as LNG, liquid oxygen, and refrigerants. Compared with ordinary solenoid valves, cryogenic solenoid valves have fundamental differences in materials and structure. The valve body material must be austenitic stainless steel (304/316L) that has been subjected to cryogenic treatment, which maintains good impact toughness even at -196°C, preventing low-temperature brittle fracture. The sealing system uses low-temperature resistant PTFE, FFKM perfluoroelastomer, or a metal bellows seal to address the risk of leakage caused by seal shrinkage at low temperatures. The structural design typically features an elongated bonnet (long-neck) configuration, isolating the packing box from the valve body to prevent the packing from freezing and failing at low temperatures. The cryogenic solenoid valves produced by Kaivex Valve Group are widely used in cryogenic engineering fields such as air separation units, LNG filling stations, medical cryopreservation, aerospace propellant supply, and petrochemicals.

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High temperature and high pressure solenoid valve

Model：
GWDRY/YSE/YSE-A/YSI/YSP
Specification：
DN0.8~50mm
Pressure：
0~700bar
Material：
Brass, stainless steel

High Temperature and High Pressure Solenoid Valve Models: GWDRY / YSE / YSE-A / YSI / YSP High temperature, high pressure, and ultra-high pressure solenoid valves are categories of solenoid valves specifically designed for extreme operating conditions. They are used for high-temperature media, high system pressure, and extreme pressure environments, and are widely applied in fields such as hot oil systems, chemical reactions, hydraulics, and testing equipment. The valve body of high temperature solenoid valves is made of stainless steel or heat-resistant alloy steel, with seals made of PTFE or metal hard seal, and is equipped with a long-neck heat dissipation structure to prevent coil overheating and damage. High pressure solenoid valves generally refer to products with operating pressures between 10MPa and 100MPa. The pilot-operated structure is more common, using a pilot valve to control the opening and closing of the main valve, achieving high-pressure actuation with small electromagnetic force. The valve core must be hardened to resist erosion. Ultra-high pressure solenoid valves are suitable for extreme operating conditions with working pressures of 40MPa or even up to 70MPa. They are commonly found in waterjet cutting, high-pressure test benches, and deep-sea equipment. Due to structural limitations on electromagnetic force, ultra-high pressure solenoid valves are mostly normally closed type with two-stage or three-stage pilot-operated designs, and must also be equipped with special explosion-proof coils to ensure safety.

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Solenoid valve for water, gas, and liquid

Model：
DFD/RSP/2W/ZW/2W-SL/YSA
Specification：
DN2.5~200mm
Pressure：
0~16bar
Material：
Brass, stainless steel

Solenoid Valve Models for Water, Gas, Liquid, and Plastic Applications: DFD / RSP / 2W / ZW / 2W-SL / YSA A solenoid valve is a switching element that uses electromagnetic force to automatically control the on/off of fluid flow. It is widely used in pipeline control systems for water, gas, and various liquids. Its working principle is as follows: when the solenoid coil is energized, it generates a magnetic force that attracts the valve core or moving iron core, thereby changing the on/off state of the valve port. When power is cut off, the valve resets by spring force.The solenoid valves produced by Kaivex Valve Group can be categorized as follows:Water Solenoid Valves: Commonly used in water supply and drainage, irrigation, and HVAC equipment. Pilot-operated structures are often selected to reduce power consumption. Common models include the 2W series, etc.Gas Solenoid Valves: Suitable for air, natural gas, inert gases, etc. Due to the compressibility of gases, higher sealing performance is required, and attention must be paid to response speed and explosion-proof safety. Direct-acting or semi-direct-acting solenoid valves are often chosen for gaseous media to ensure reliable opening even under low or zero differential pressure.Liquid Solenoid Valves: These cover a wide range of applications, including oil products, weak acid/alkali solutions, and chemical media. Appropriate valve body materials (such as stainless steel, UPVC, etc.) and sealing materials (such as NBR, FKM, EPDM, PTFE, etc.) must be selected based on the viscosity, temperature, and corrosiveness of the liquid. For low-temperature or high-temperature liquids, the heat dissipation and temperature resistance rating of the coil must also be considered.

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Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

Steam solenoid valve

Explosion-proof solenoid valve

Corrosion-resistant solenoid valve

Low temperature solenoid valve

High temperature and high pressure solenoid valve

Solenoid valve for water, gas, and liquid