The PS Series (DN15-65) Flange Connection 2-Way 2-Position Pilot-operated Piston Type Steam Solenoid Valve is a heavy-duty, ultra-reliable fluid control valve engineered specifically for central thermal pipe networks and primary steam supply lines of heavy machinery. In industrial configurations such as municipal district heating, automotive tire vulcanization, large-scale textile stenter settings, food retorting, and high-volume chemical processing, high-pressure steam traveling at immense velocities exerts relentless mechanical scouring and aggressive thermal stress on pipe fittings. For these large-volume, heavy-load pipeline scenarios, traditional threaded interfaces fall short of guaranteeing long-term anti-vibration stability and absolute zero-leakage security. This series innovatively merges a pilot-piston high-pressure mitigation mechanism with heavy-duty industrial Flange connections. The valve body is precision-cast using thickened high-grade Brass or rugged Stainless Steel (SS304), with flange dimensions strictly adhering to engineering standards. Securely bolted to the pipeline flanges, this layout completely immunizes the joint against stress fracturing or external steam bypassing caused by thermal contraction and expansion cycles. Utilizing the pilot-operated pressure relief channel, the valve utilizes the line fluid's differential pressure to command pressures up to 16 bar across large orifices, standing as a critical heavy-load core switch in modern automated steam networks.Product Image:PS Flanged 2/2-Way Piston Type Steam Solenoid Valve

This series threaded piston zero differential pressure steam solenoid valve is a premium, multi-purpose automated fluid control device engineered specifically for severe industrial operating conditions. This series utilizes an industry-innovative semi-direct acting piston structure. Conventional pilot-operated solenoid valves rely heavily on a minimum operational differential pressure within the pipeline and frequently fail to actuate in low-pressure, terminal pipeline networks, or vacuum environments. This series completely resolves this technical challenge by step-linking the electromagnetic force directly to the piston assembly, enabling unrestricted and precise opening and closing across the entire pressure range from zero to eight bar, achieving a true zero differential pressure startup. To adapt to diverse industrial chemical environments, the valve bodies are offered in investment-cast high-grade Brass or heavy-duty Stainless Steel. The internal core dynamic sealing elements and the metal piston undergo precision grinding and polishing, yielding exceptional wear and erosion resistance. Specially optimized for high-temperature saturated steam, superheated steam, hot steam, hot and cold water, and various low-viscosity non-corrosive or corrosive fluids, this series is widely utilized as control terminals in district heating networks, industrial steam cleaning machinery, food and beverage processing, rubber vulcanization, chemical and pharmaceutical manufacturing, and automated fluid process pipelines.Product Image:RSPS Threaded Connection Piston Type Zero Differential Pressure Steam Solenoid Valve

The YSF Series Electric Iron and Coffee Machine Direct-Acting Solenoid Valve is a precision electromagnetic control valve deeply customized for high-temperature, compact fluid systems. Featuring a nominal diameter of DN6, this series possesses an extremely compact footprint and fully supports high-precision G thread and NPT thread connections, allowing it to seamlessly integrate into the miniature pipings of commercial/household coffee machines, industrial electric irons, and various steam generators. Utilizing a zero-pressure start direct-acting, normally closed configuration, the valve delivers instantaneous and agile opening/closing responses across a wide pressure range of 0 to 10 bar. Built with choice forged Brass or high-grade SS316 Stainless Steel combined with high-temperature resistant specialty seals, it maintains outstanding sealing integrity and fatiguing life under harsh working conditions up to 120°C, rendering it an ideal core fluid control component for modern high-end household appliances and industrial thermal equipment.Product Image: YSF Direct-acting Solenoid Valves for Electric Irons and Coffee Machines

The 2L series steam solenoid valve is an automated execution element driven by high-performance electromagnetic coils, specifically designed for the shut-off and opening of steam, high-temperature water, and non-abrasive gases in industrial piping systems. Utilizing a pilot-operated piston structure, the valve uses electromagnetic force to open the pilot hole, allowing the medium's pressure differential to drive the main piston for rapid actuation. With a high-quality cast steel or stainless steel body and specialized high-temperature-resistant PTFE sealing pairs, the 2L series maintains exceptional stability and tightness under high-temperature and high-pressure conditions. This valve is widely applied in steam control loops for dyeing, laundry, chemical fiber, food processing, and various heat exchange equipment.Product Image of 2L Steam Solenoid Valve

The RSH-15/20/25 Series Threaded Connection 2-Way 2-Position Pilot-operated Diaphragm Type Steam Solenoid Valve is a high-sensitivity fluid control component explicitly tailored for small-bore industrial thermal pipe networks and high-frequency intermittent heat-exchange systems. In configurations like apparel steam ironing tables, small steam boiler auxiliaries, medical autoclave sterilization, and high-temperature liquid lines in chemical laboratories, the valve must execute highly frequent open-and-close cycles under medium-to-low pressures (below 10 bar), which demands exceptionally fast switching speeds, low pressure-differential actuation, and an extremely compact envelope. This series features an advanced pilot-operated diaphragm configuration housed within a precision-cast, heavy-duty Brass or premium Stainless Steel (SS304) valve body. The underlying operation relies on releasing the fluid pressure in the upper diaphragm chamber when energized, leveraging the line's own differential pressure to lift the highly flexible reinforced diaphragm instantaneously, granting full-bore volumetric flow. Safely operating within a 0.3 - 10 bar pressure envelope, the RSH series demonstrates outstanding operational linearity and minimized actuation lag. Combined with globally standardized compact threaded interfaces, it stands as an economical yet high-performance process shut-off solution for space-limited automated thermal networks.Product Image:RSH Series Pilot-operated Diaphragm Type Steam Solenoid Valve

This series flanged piston zero differential pressure steam solenoid valve is a premium, multi-purpose automated fluid control device engineered specifically for heavy-duty and severe industrial operating conditions. This series utilizes an industry-innovative semi-direct acting piston structure and features a flanged connection, which significantly enhances the sealing stability and vibration resistance of the pipeline network under high-pressure and large-diameter conditions. Conventional pilot-operated solenoid valves rely heavily on a minimum operational differential pressure within the pipeline and frequently fail to actuate in low-pressure, terminal pipeline networks, or vacuum environments. This series completely resolves this technical challenge by step-linking the electromagnetic force directly to the piston assembly, enabling unrestricted and precise opening and closing across the entire pressure range from zero to eight bar, achieving a true zero differential pressure startup. To adapt to diverse industrial chemical environments and high-strength pipeline loads, the valve bodies are offered in investment-cast high-grade Brass or heavy-duty Stainless Steel. The internal core dynamic sealing elements and the metal piston undergo precision grinding and polishing, yielding exceptional wear and erosion resistance. Specially optimized for high-temperature saturated steam, superheated steam, hot steam, hot and cold water, and various low-viscosity non-corrosive or corrosive fluids, this series is widely utilized as control terminals in industrial boiler systems, district heating networks, textile printing and dyeing machinery, food and beverage processing, rubber vulcanization, chemical and pharmaceutical manufacturing, and large-to-medium primary fluid process pipelines.Product Image:RSPS Flanged Piston Zero Differential Pressure Steam Solenoid Valve

The ZCT Series 2-Way 2-Position Piston Type (Normally Closed) Stainless Steel Solenoid Valve is a premium, heavy-duty automatic valve engineered for modern industrial fluid control systems. Combining the outstanding corrosion resistance of precision-cast stainless steel (SS304) with an advanced piston-guided mechanical configuration, this series is custom-designed for the highly reliable automation of steam, gases, and liquids under strenuous operating conditions. Operating Principle: Being a Normally Closed (NC) valve, the internal pilot orifice remains closed when the system is de-energized. The main valve piston is pressed tightly against the seat by both the force of the return spring and the fluid pressure itself, effectively isolating the media. When the electromagnetic coil receives an electrical signal, it generates a robust magnetic field that instantly lifts the plunger, opening the pilot orifice. The fluid pressure inside the upper piston cavity is released immediately through this pilot hole, establishing a severe pressure differential across the piston. The upstream fluid pressure overcomes the combined force of the spring and piston weight, pushing the main piston upward to the fully open state. Once power is cut, the pilot orifice seals again, pressure rebuilds in the upper chamber, and the spring swiftly drives the piston downward to ensure tight shutoff.Product Image:ZCT 2-Way 2-Position Piston Type (Normally Closed) Stainless Steel Solenoid

The 2L Series Pilot Operated Piston Solenoid Valve (with nominal sizes spanning from DN15 to DN40) is a premium, heavy-duty automatic flow control valve engineered for modern industrial thermal networks, saturated steam distribution lines, superheated steam configurations, and high-temperature, medium-to-high pressure fluid automation environments. Serving as a crucial final control element within fluid dynamic loops, this series integrates a hydrodynamically optimized valve cavity with a rigid metallic piston drive assembly. This structural approach directly solves the historical vulnerabilities of traditional diaphragm valves, which frequently fail due to thermal fatigue and high differential pressure spikes. The 2L series operates as a Normally Closed (NC) valve utilizing a fluid-assisted pilot-operated mechanism.When the system is de-energized or without an active electrical signal input, the electromagnetic coil remains in a state of zero magnetic flux. The internal plunger is driven downward by the compressed force of the return spring, sealing the central pilot orifice located at the geometric center of the main piston. At this stage, the process medium flows continuously from the inlet side into the upper piston cavity via a specialized balancing throttling port machined into the piston skirt. Because the pilot orifice is sealed, fluid pressure rapidly builds within the upper chamber until it reaches static equilibrium with the upstream line pressure. Because the effective surface area on the top of the piston is larger than the area exposed to the pressure on the bottom, a downward net pressure differential is established. This high net force, combined with the mechanical pre-load of the main return spring, presses the piston assembly against the primary body seat, ensuring a zero-leakage tight shutoff. When the electromagnetic coil receives an electrical current, it generates a high-density magnetic field. The resulting electromagnetic force overcomes the combination of internal spring resistance and plunger weight, pulling the plunger upward to open the central pilot orifice instantly. Because the cross-sectional flow area of the pilot orifice is significantly larger than that of the lateral balancing throttling port, the high-pressure fluid trapped in the upper piston chamber evacuates rapidly toward the low-pressure downstream side of the valve. This creates an immediate drop in upper chamber pressure. Consequently, the upstream process fluid pressure acting on the lower surface of the piston overcomes the residual upper chamber pressure, creating a strong upward net thrust. This force compresses the main spring and lifts the heavy piston assembly smoothly along the guided walls of the valve cavity, opening the valve completely. When the power is disconnected, the magnetic field collapses, the plunger returns to seal the pilot orifice, and the upper chamber pressure re-establishes within milliseconds, driving the piston down to complete the isolation cycle.Product Image:2L Piston Type Steam Solenoid Valve

The ZCZ series steam solenoid valve is a high-performance, pilot-operated electromagnetic control valve explicitly engineered for industrial thermal energy systems, steam piping networks, and high-temperature hot water distribution systems. This series features a comprehensive range of specifications with nominal diameters spanning from DN15 to DN100, making it perfectly adaptable to various control environments from small-flow bypass lines to large-flow main headers. Available in both threaded and flanged connections, the valve bodies are crafted from premium brass or high-strength cast iron to guarantee structural stability and long-term durability under extreme high-temperature and high-pressure conditions. Operating precisely within a nominal pressure range of 0.4 to 10 bar, this valve successfully resolves common technical issues of conventional solenoid valves, such as scaling, short lifespans, and sealing failures under steam media, making it an ideal choice for automation in boiler piping, heat exchanger stations, printing/dyeing, food processing, and pharmaceuticals.Product Image:ZCZ Steam Solenoid Valve

The ZQDF series 2-way 2-position piston-type steam solenoid valve is a normally closed, industrial-grade automatic control valve integrating an advanced semi-direct (lift-assistant) linkage actuation mechanism. With nominal diameters ranging from DN15 to DN50, the valve bodies are precision-manufactured from high-density, crack-resistant premium cast brass, which grants phenomenal mechanical strength, erosion resistance, and intergranular corrosion immunity. Offering both standard G thread and heavy industrial flanged ("F" type) connections, the ZQDF series delivers a crucial technological breakthrough—the capacity to actuate under zero differential pressure (0 bar). This entirely bypasses the performance bottlenecks of conventional pilot-operated valves, which consistently fail to open or close in low-pressure, micro-differential, or vacuum systems. Specifically engineered for extreme media environments such as saturated steam, superheated steam, and thermal water with sharp cold-hot cycles, this series is widely applied in central factory heating, large-scale laundry and dyeing equipment, industrial boiler conduits, specialized food dehydration, medical autoclaves, and modern HVAC applications for remote automated fluid isolation.Product Image:ZQDF 2-Way 2-Position Piston Type (Normally Closed) Steam Solenoid Valve