ZJHP compact pneumatic diaphragm single-seated regulating valve is an industrial automation control unit composed of a high-performance multi-spring pneumatic diaphragm actuator and a compact streamlined single-seated valve body. Equipped with an electro-pneumatic valve positioner or an intelligent positioner, the valve can receive 4-20mA DC standard analog signals from DCS or PLC systems. It utilizes compressed air as a power source to achieve precise control of process parameters. The actuator features a multi-spring design that accurately converts air pressure signals into valve stem thrust, driving the single-seated globe-style valve plug in a linear reciprocating motion within the valve body. Due to the single-seated sealing structure and precision-machined internal components, this series of valves features minimal leakage, tight shut-off performance, high adjustment precision, small size, and light weight. With its compact structure and low flow resistance, it is widely used in automation control systems requiring strict shut-off and precise regulation in process industries such as petroleum, chemicals, light industry, pharmaceuticals, and HVAC, serving as efficient and reliable execution equipment for modern industrial fluid control.Product Image: ZJHP Compact Pneumatic Diaphragm Single-seated Regulating Valve

ZMA/BP pneumatic diaphragm straight-through single-seated regulating valve is an execution unit for industrial process control, consisting of a multi-spring (or single-spring) pneumatic diaphragm actuator and a straight-through single-seated globe-style valve body. The valve receives pneumatic signals (typically 20-100KPa) or standard analog signals (4-20mA via a positioner) to convert air pressure into linear displacement of the actuator stem, driving the valve stem and plug relative to the seat. By changing the throttling area between the plug and seat, it achieves automated regulation of process parameters such as flow rate, pressure, and temperature. Due to its single-seated sealing structure, this valve features minimal leakage, excellent shut-off performance, and high adjustment precision, making it a classic control device for industries like petroleum, chemicals, metallurgy, and textiles where tight shut-off is required.Product Image of ZMA/BP Pneumatic Diaphragm Straight-through Single-seated Regulating Valve

The CVPS high-pressure single-seated control valve is a precision execution unit specifically designed for modern industrial applications involving high pressure, high differential pressure, and high temperature. This valve integrates a high-performance multi-spring pneumatic diaphragm actuator with a reinforced single-seated globe-style valve body. The core design features a high-strength body structure and hardened internal components to effectively resist impact, erosion, and cavitation damage from high-pressure fluids. By receiving standard 4-20mA signals from control systems, the actuator converts pneumatic power into linear displacement to drive the plug accurately, achieving continuous proportional regulation of flow and pressure. With its superior shut-off integrity, extreme pressure resistance, and stability, the CVPS series is widely used in power plant feedwater, desuperheating water, high-pressure chemical processes, and oil and gas gathering systems.Product Image of CVPS High-Pressure Single-Seated Control Valve

The ZHJPX pneumatic small flow control valve is a precision execution unit specifically designed for the accurate control of micro-flow rates (on the scale of microliters or milliliters). It consists of a multi-spring pneumatic diaphragm actuator and a compact single-seated valve body. The core design features high-precision plug-and-seat sets (micro-flow trim), enabling proportional regulation for media with extremely low flow coefficients (Cv values). By receiving standard analog signals from control systems, the actuator utilizes compressed air to drive the stem for minute displacement, altering the throttling area in real-time. Due to its exceptional regulation resolution and sensitivity, the ZHJPX series is widely used in laboratory research, dosing systems, fine chemical proportioning, semiconductor manufacturing, and any process requiring extremely fine adjustment of fluid parameters.Product Image of ZHJPX Pneumatic Small-Flow Control Valve

The ZTP pneumatic desuperheating and pressure reducing valve is a high-performance industrial control device that integrates steam pressure regulation and temperature control into a single unit. Specifically designed for waste heat recovery in thermal power plants, boiler steam systems, and various thermal engineering projects, it achieves both pressure reduction and water-spray cooling within a single valve body. The core principle involves a pneumatic actuator driving a multi-stage throttling plug for pressure reduction, combined with a built-in precision atomizing nozzle system that injects desuperheating water uniformly into the high-speed steam flow for rapid heat exchange. The ZTP series significantly simplifies pipeline layouts, reduces footprint, and minimizes heat loss. With its exceptional stability under high-temperature and high-pressure-drop conditions, this valve is a core execution element for ensuring the efficient operation of modern thermal networks.Product Image of ZTP Pneumatic Desuperheating and Pressure Reducing Valve

ZJHM compact pneumatic diaphragm cage-guided control valve is an industrial automation control unit consisting of a high-performance multi-spring pneumatic diaphragm actuator and a compact pressure-balanced cage-style valve body. The valve receives standard analog signals such as 4-20mA DC from control systems (such as PLC, DCS). Through an electro-pneumatic valve positioner, it converts the control signals into pneumatic power, driving the multi-spring actuator to generate linear thrust, which moves the balanced valve plug within the cage vertically. Due to the pressure balance hole design of the valve plug, the fluid-induced unbalanced forces acting on the plug are effectively offset. This series of valves features excellent dynamic stability, high allowable pressure differential, low operating noise, and a compact, lightweight design. It is widely used in industries such as petroleum, chemical, pharmaceutical, metallurgical, and power for automation control systems that demand high pressure drops, large flow rates, and high dynamic response.Product Image of ZJHM Compact Pneumatic Diaphragm Cage-Guided Control Valve

The CV3000-HCB cage-guided control valve is a high-performance industrial process control unit consisting of a robust actuator and a pressure-balanced cage-style body. Utilizing cage-guiding technology and a balanced plug with internal holes, the valve uses the media pressure itself to offset the majority of the fluid's axial unbalanced force, thereby significantly reducing the required actuator thrust. The CV3000-HCB series is specifically engineered for harsh conditions involving high pressure drops, large flow rates, and potential vibration, offering exceptional dynamic stability, low noise, and cavitation resistance. This valve enables precise control of process parameters such as flow rate, pressure, and temperature, and is widely adopted in automated systems across power, petroleum, chemical, metallurgical, and environmental protection industries.Product Image of CV3000-HCB Cage Guided Control Valve

The CV3000-HCN low-noise cage-guided control valve is an intelligent control unit specifically engineered for modern industrial processes involving high differential pressures, high flow velocities, and stringent environmental noise requirements. This valve combines a high-performance actuator with a pressure-balanced body equipped with a specialized multi-hole silencing cage. Its core technology involves dividing the medium fluid into a large number of micro-jets through a perforated throttling cage, effectively suppressing hydrodynamic and aerodynamic noise by utilizing fluid dispersion and step-by-step kinetic energy dissipation. Compared to standard cage valves, the CV3000-HCN significantly reduces operating decibels and prevents cavitation damage. The valve receives standard analog signals from DCS or PLC systems to achieve precise proportional regulation of steam, gas, or high-pressure water, making it an ideal execution device for silent control and high-reliability operation in power, petroleum, chemical, and urban heating systems.Product Image of CV3000-HCN Low Noise Cage Guided Control Valve

ZJHF pneumatic fluorine-lined bellows sealed control valve is a precision execution unit specifically engineered for highly corrosive media and toxic or volatile fluids. It integrates a multi-spring pneumatic diaphragm actuator with a single-seated valve body lined with fluoroplastics (FEP/F46 or PFA), featuring an innovative double-sealing structure combining bellows and packing. By receiving standard 4-20mA DC signals from control systems, the actuator converts air pressure into linear displacement to drive the stem for precise regulation in aggressive environments. With all wetted parts covered by high-performance fluorine plastics and the bellows seal ensuring zero stem leakage, this valve is widely utilized in petrochemical, fine chemical, pharmaceutical, and acid-alkali production where safety and anti-corrosion requirements are paramount.Product Image of ZJHF Pneumatic Fluorine-lined Bellows Sealed Control Valve

The ZHJM intelligent pneumatic high-performance cage control valve is an advanced industrial process control unit integrating a multi-spring pneumatic diaphragm actuator, an intelligent electro-pneumatic positioner, and a pressure-balanced cage-guided valve body. The valve receives standard 4-20mA signals from control systems, which the intelligent positioner accurately converts into pneumatic power to drive the linear movement of the plug within the cage, thus precisely regulating flow, pressure, or temperature. Due to the cage-guided design and pressure-balance holes, the fluid-induced unbalanced forces are effectively offset, providing exceptional dynamic stability, high allowable pressure differentials, and superior noise reduction. The ZHJM series is specifically engineered for automation systems in petroleum, chemical, power, and metallurgy industries where high regulation precision and long service life are required.Product Image of ZHJM Intelligent Pneumatic High-Performance Cage-Guided Control Valve

The ZHJPD pneumatic diaphragm cryogenic control valve is a precision automated execution unit specifically engineered for cryogenic services such as liquid nitrogen, liquid oxygen, liquid argon, and LNG. This valve consists of a multi-spring pneumatic diaphragm actuator and a single-seated valve body integrated with an extended long-neck bonnet. The core design features the extended bonnet to keep the packing box away from the cryogenic media, preventing the packing from freezing or losing elasticity, thereby ensuring reliable stem sealing. By receiving standard 4-20mA signals from control systems, the actuator converts air pressure into linear displacement via a positioner to achieve accurate proportional regulation of flow, pressure, and temperature. The ZHJPD is characterized by its compact structure, sensitive response, impact resistance at low temperatures, and superior sealing, widely used in air separation units, gas liquefaction, and cryogenic scientific experiments.Product Image of ZHJPD Pneumatic Diaphragm Cryogenic Control Valve

ZMA/BN series pneumatic diaphragm straight-through double-seated regulating valve is an industrial process control execution unit composed of a multi-spring pneumatic diaphragm actuator and a straight-through double-seated balanced valve body. The valve receives pneumatic signals from the control system or analog current signals (4-20mA) via a positioner to convert air pressure into linear displacement of the actuator stem, driving the valve stem to move the upper and lower plugs relative to the seats. Due to the double-plug structure, the fluid forces acting on the upper and lower plugs are opposite in direction and similar in magnitude, allowing most of the unbalanced force to be offset. Consequently, this valve features high allowable pressure differential, large flow capacity, and excellent dynamic stability, making it particularly suitable for industrial automation systems with high flow rates, high pressure drops, and relatively relaxed leakage requirements.Product Image of ZMA/BN Pneumatic Diaphragm Straight-through Double-seated Regulating Valve

ZJHQ pneumatic diaphragm three-way converging control valve is an industrial automation control valve consisting of a multi-spring pneumatic diaphragm actuator and a three-way converging globe-style valve body. By receiving pneumatic signals from the control system (or standard 4-20mA DC signals converted via an electro-pneumatic positioner), the valve utilizes the thrust generated in the diaphragm chamber to drive the valve stem, moving the valve plug axially between two seats. Its unique two-inlet and one-outlet structural design is specifically used to mix two fluids of different temperatures, pressures, or concentrations into a single uniform fluid in a set proportion, achieving precise control over parameters such as the temperature and composition of the mixed medium. Compared to electric control valves, the ZJHQ model features sensitive action, rapid response, and intrinsic safety due to its pneumatic actuator, making it better suited for high-frequency regulation and environments with extreme safety requirements. In heat exchange stations, industrial mixing systems, and cooling circulation loops, a single pneumatic three-way converging valve can replace two coordinated single-seated control valves. This not only significantly simplifies the process pipeline configuration and reduces potential leakage points but also greatly lowers system complexity and equipment investment costs.Product Image of ZJHQ Pneumatic Diaphragm Three-way Converging Control Valve

ZJHX pneumatic diaphragm three-way diverging control valve is an industrial automation control valve consisting of a multi-spring pneumatic diaphragm actuator and a three-way diverging globe-style valve body. By receiving pneumatic signals from the control system (or standard signals converted via a positioner), the valve utilizes the thrust generated in the diaphragm chamber to drive the valve stem, moving the diverging plug accurately between two seats. Its unique one-inlet and two-outlet structural design is specifically used to distribute a single inlet fluid stream into two outlet paths in a set proportion or to divert fluid into a bypass system. Compared to electric control valves, the ZJHX model features sensitive action and rapid response, making it better suited for high-frequency regulation and environments with extreme safety requirements. In heat exchanger bypass control and industrial proportional distribution systems, a single pneumatic three-way diverging valve can effectively replace two coordinated single-seated control valves, significantly simplifying the process pipeline configuration and reducing potential leakage points.Product Image of ZJHX Pneumatic Diaphragm Three-way Diverging Control Valve

ZJHN pneumatic double-seated control valve is an industrial process control execution unit consisting of a multi-spring pneumatic diaphragm actuator and a straight-through double-seated valve body. The valve receives standard 4-20mA DC analog signals or 20-100kPa pneumatic signals from control systems, converting air pressure into linear displacement via the actuator to drive the stem, moving the dual valve plugs relative to the seats. Due to the double-plug structure, the fluid forces acting on the upper and lower plugs are opposite in direction and similar in magnitude, allowing most of the unbalanced force to be offset. With its large allowable pressure differential, high flow capacity, and excellent dynamic stability, the ZJHN series is widely used in petroleum, chemical, power, and metallurgical industries for automated systems requiring high-volume control under significant pressure drops.Product Image of ZJHN Pneumatic Double-Seated Control Valve

ZJHS compact pneumatic diaphragm angle single-seated control valve is a precision control unit consisting of a multi-spring pneumatic diaphragm actuator and a compact angle-style single-seated valve body. It is specifically designed for flow regulation of media with high pressure drops, high viscosity, or containing suspended particles. The angle-style body features a simple flow path with minimal resistance, effectively utilizing the erosion force of the medium for self-cleaning and preventing fluid accumulation in the cavity. Key internals such as the plug and seat can undergo hardening treatments like Stellite overlay, nitriding, or specialized spraying before or after machining to enhance erosion and wear resistance. The sealing structure offers options for PTFE soft seals or high-hardness metal-to-metal hard seals based on medium pressure and temperature, ensuring strict shut-off while providing excellent dynamic regulation stability. The ZJHS valve is typically installed at piping locations requiring a 90-degree change in fluid direction to precisely regulate physical parameters, ensuring the stable operation of industrial processes. It features a compact structure, light weight, sensitive response, and smooth flow, with a rated flow coefficient generally higher than standard single-seated valves. It is widely used in petroleum, chemical, power, and textile industries for automation systems requiring high precision and durability.Product Image of ZJHS Compact Pneumatic Diaphragm Angle Single-seated Control Valve

ZJHJ pneumatic angle-type control valve is an industrial automation execution unit specifically designed for harsh conditions such as high pressure drops, high viscosity, and media containing suspended particles or fibers. The valve consists of a high-performance multi-spring pneumatic diaphragm actuator and a 90-degree angle-style single-seated valve body. By receiving standard 4-20mA DC analog signals from the control system, the thrust generated by the diaphragm chamber drives the stem for linear displacement, precisely changing the flow area between the plug and the seat. Due to its unique angle structure, which simplifies flow direction and provides excellent self-cleaning capabilities, this valve is widely used in key process points within the petroleum, chemical, power, and metallurgical industries where suppression of flashing and cavitation and prevention of media clogging are required.Product Image of ZJHJ Pneumatic Angle Control Valve

The ZSY electronically controlled pneumatic steam trap/drainage valve is an intelligent drainage unit integrating high-performance pneumatic actuation with electronic pilot control. It is specifically designed for high-pressure heater drainage, deaerator drainage, and condensate discharge in various thermal networks. By receiving electrical signals from DCS systems or level controllers, and utilizing solenoid valves or positioners, it converts pneumatic power into rapid mechanical displacement to move the plug. The ZSY series features specialized throttling and energy dissipation designs, effectively mitigating cavitation and flashing damage under high differential pressures. Combining electronic precision with pneumatic speed, this valve is widely used in high-temperature, high-pressure drainage systems across power, petrochemical, and paper industries.Product Image of ZSY Solenoid-Controlled Pneumatic Steam Trap

The ZJHPF pneumatic diaphragm fluorine-lined bellows sealed control valve is a precision process control unit integrating a high-performance pneumatic actuator, an overall fluorine-lined body, and bellows sealing technology. This valve is specifically designed for handling highly corrosive, toxic, volatile, and permeable media. All internal wetted surfaces and components are lined with fluoroplastics (e.g., FEP/F46 or PFA), effectively isolating the metal substrate from erosion. The stem seal utilizes a double-barrier structure combining a bellows seal with auxiliary packing, ensuring absolute zero leakage at the stem movement point. The ZJHPF series is widely utilized in petrochemical, fine chemical, chlor-alkali, and pharmaceutical industries where environmental safety and corrosion resistance are paramount.Product Image of ZJHPF Pneumatic Fluorine-lined Bellows Sealed Control Valve

ZJHT pneumatic diaphragm actuated diaphragm control valve is a precision fluid control unit utilizing a flexible membrane as both the closing and sealing element. It integrates a multi-spring pneumatic diaphragm actuator with a streamlined diaphragm valve body featuring a smooth, dead-zone-free flow path. By receiving standard 4-20mA DC signals from control systems, it uses compressed air to actuate the stem, pressing the elastic diaphragm against the weir to regulate or shut off flow. Because this unique design completely isolates the medium from the stem and actuator, the valve offers exceptional corrosion resistance and superior cleanliness. The ZJHT series is widely applied in petrochemical, pharmaceutical, food, environmental, and ultrapure water industries, particularly for handling aggressive chemicals, high-viscosity slurries, and hygienic process media.Product Image of ZJHT Pneumatic Diaphragm Actuated Diaphragm Control Valve

ZSPQ pneumatic piston-type fast shut-off valve is an industrial safety control unit consisting of a high-thrust pneumatic piston actuator and a high-sealing straight-through single-seated valve body. It is specifically designed for emergency shut-off, opening, and automated sequence control of fluid media during production processes. The core power source is compressed air. By utilizing a matching solenoid valve to control the flow of air into the upper and lower chambers of the actuator, the piston is driven to move rapidly within the cylinder, thereby causing instantaneous linear movement of the stem and plug relative to the seat. Compared to traditional pneumatic diaphragm control valves, the ZSPQ model offers significant advantages such as faster response, larger opening/closing thrust, higher frequency of action, and excellent mechanical self-locking capabilities. It can achieve complete and tight pipe closure within seconds or even milliseconds. The sealing structure utilizes a strict single-seated design with precision-ground sealing surfaces to ensure bubble-tight zero leakage under various pressure gradients. ZSPQ valves feature a simple structure, reliable action, and strong vibration resistance, and are widely used in emergency protection systems for flammable, explosive, high-pressure gas or liquid media in the petroleum, chemical, metallurgical, and power industries, serving as critical execution equipment for the safe and stable operation of the entire process.Product Image of ZSPQ Pneumatic Piston-type Fast Shut-off Valve

The J641H pneumatic piston fast shut-off valve is an industrial safety control unit consisting of a high-thrust pneumatic piston actuator and a high-sealing straight-through single-seated valve body. This valve is specifically designed for Emergency Shutdown (ESD) or programmed opening applications in industries such as petroleum, chemical, and power where safety requirements are extremely stringent. By controlling the air supply direction via solenoid valves, the compressed air drives the piston at high speed within the cylinder, completing the full stroke in milliseconds to seconds. Due to the piston-type drive mechanism, its output thrust significantly exceeds that of traditional diaphragm valves, making it ideal for tight shut-off in high-pressure differential and large-diameter pipelines. The J641H series is a critical protective device for ensuring the inherent safety of process flows.Product Image of J641H Pneumatic Piston Quick Shut-off Valve

The ZJC high-performance program control valve is an automated switching unit specifically designed for Pressure Swing Adsorption (PSA) units, gas separation, and hydrogen recovery systems. Comprising a high-efficiency pneumatic piston actuator and a high-sealing globe or ball-style body, it receives program signals from PLC or DCS systems to achieve frequent and rapid on/off control of hydrogen, natural gas, shift gas, and various dry gases. Addressing the challenges of PSA processes—such as high switching frequency, pressure fluctuations, and strict sealing requirements—the ZJC series features reinforced axial guiding and specialized wear-resistant sealing pairs. With its exceptional performance in maintaining zero leakage over millions of cycles, this product is a core execution component for gas purification processes in petroleum refining, fertilizers, metallurgy, and fine chemicals.Product Image of ZJC Program-Controlled Valve

ZHYO pneumatic tank bottom control valve is an automated control device specifically designed for installation at the bottom of reactors, storage tanks, and other vessels for media discharge, feeding, and precise flow regulation. Integrating a high-performance pneumatic diaphragm actuator with a specialized tank-bottom valve body, its core design focuses on eliminating the "dead-zone" phenomenon at the vessel outlet. By receiving standard 4-20mA signals from control systems, the actuator drives the stem to move the plug (available in either disc-upward opening or disc-downward opening configurations) to achieve precise flow proportioning and liquid level control. Since the valve body is directly flanged to the tank bottom and the disc remains flush with the inner wall when closed, this valve is ideal for harsh process environments involving crystallization, high viscosity, and particulate impurities in the petrochemical, pharmaceutical, bioengineering, and food industries.Product Image of ZHYO Pneumatic Tank Bottom Control Valve