1. Introduction Pneumatic bellows control valves are specialized control valves widely used in industrial processes. They play a crucial role in regulating the flow, pressure, and temperature of various fluids. These valves are designed to meet the demands of applications where tight sealing, precise control, and reliable operation are essential.

Pneumatic Single Seat Control Valve: Precision Flow Regulation for Critical Processes A pneumatic single seat control valve is a fundamental component in industrial process control, designed to regulate fluid flow with high accuracy while ensuring tight sealing. Ideal for applications requiring precise modulation and reliable shut-off, this valve combines a pneumatic actuator with a single-port valve body, making it suitable for a wide range of industries from chemicals to power generation.

The electric bellows control valve is a specialized industrial valve designed to combine precise flow control with hermetic sealing, making it ideal for applications where fluid containment and reliability are critical. Featuring a bellows assembly to isolate the valve stem from the process fluid, this design eliminates stem leakage, ensuring safety and efficiency in demanding environments.

The electric lined fluorine ball valve is a specialized industrial valve designed for handling highly corrosive media while ensuring precise flow control. Combining an electric actuator with a fluoropolymer-lined body, this valve excels in harsh chemical environments where standard materials fail, making it indispensable in industries like pharmaceuticals, chemicals, and water treatment.

An eccentric rotary valve, also known as an eccentric plug valve or rotary control valve, is a specialized flow control device designed to balance precision, durability, and efficiency in industrial processes. Its unique eccentric design sets it apart from conventional valves, making it ideal for applications requiring tight sealing, low torque operation, and reliable performance in challenging environments.

The pneumatic triple eccentric butterfly valve stands at the forefront of high-performance flow control solutions, distinguished by its innovative design that addresses the most challenging requirements in industrial processes. Combining advanced engineering with robust materials, this valve excels in applications demanding tight sealing, high pressure tolerance, and reliable operation across extreme conditions.

In the realm of industrial valves, the V - type ball valve stands out for its unique design and exceptional performance capabilities. This specialized valve has become a staple in various industries due to its ability to handle challenging media and provide precise flow regulation.

A self-operated control valve is an ingenious device designed to regulate fluid flow, pressure, or temperature without relying on external power sources such as electricity or compressed air. Instead, it harnesses the energy inherent in the process fluid itself to maintain precise control over critical parameters. This makes it a cost-effective and reliable solution for a wide range of industrial applications.

A pneumatic sleeve control valve is a specialized type of control valve designed to regulate fluid flow with high precision in industrial processes. It utilizes a pneumatic actuator to manipulate a flexible sleeve, which in turn controls the flow of liquids, gases, or slurries. This valve is particularly valued for its ability to handle challenging fluids and provide accurate flow control in various applications.

A pneumatic O - type ball valve is a crucial industrial valve that utilizes a pneumatic actuator to regulate the rotation of a spherical disc, known as the ball. This valve is designed to control the flow of various fluids, including gases, liquids, and even some slurries in industrial pipelines.

​ The double disc check valve is a critical device in fluid piping systems, designed

​A Pneumatic Fluorine Lined Control Valve integrates pneumatic actuation with fluoropolymer lining, offering robust solutions for corrosive fluid regulation in harsh industrial environments. Driven by compressed air, the valve utilizes a piston or diaphragm actuator to position a fluorine-lined plug, while its body and internal components are coated with PTFE, PFA, or FEP to resist aggressive chemicals, acids, and solvents. ​

​The wellhead serves as a crucial hub in oil and gas field development, playing a pivotal role in controlling downhole fluids, ensuring extraction safety, and optimizing production. Its core structure comprises three main components: the casing head, tubing head, and Christmas tree, which are connected via flanges or threads to form a comprehensive pressure control system. ​

​The electric sleeve control valve serves as a core device in industrial fluid control, achieving high-precision flow regulation and stable operation through the deep integration of an electric actuator and sleeve-type valve plug structure. A cylindrical sleeve with symmetric balancing holes is installed inside the valve body, and the valve plug moves guided by the sleeve. When the electric actuator receives standard control signals like 4-20mA, it drives the valve plug to displace axially, changing the flow area between the sleeve and plug to precisely regulate fluid flow, pressure, or temperature. ​

In the process of industrial automation, precise and efficient fluid control is of vital importance, and the electric V-type ball valve serves as a key device to meet this demand. It perfectly integrates the precise control of electric actuators with the unique structural advantages of V-type ball valves, playing an irreplaceable role in numerous industrial fields.

  Ball valve is a widely used cutting and control device in industrial pipeline systems, which uses a sphere as the opening and closing element to achieve fluid flow control or adjustment through 90 ° rotation. Its core structure includes a ball with a through-hole, a valve seat, a valve body, and a driving device. When the ball hole is aligned with the pipeline, it is fully opened, and when the hole is misaligned with the pipeline after rotation, it is closed. It is easy to operate and quickly opens and closes. ​ Core types and characteristics Floating ball type: The ball floats, the valve seat is fixed, and the ball is pressed against the valve seat by the pressure of the medium to achieve sealing. It is suitable for low-pressure small-diameter scenarios (DN ≤ 200). ​ Fixed ball type: The ball is fixed on the valve stem, and the valve seat floats. The ball is pressed tightly by medium pressure or spring force, which has better sealing performance and is suitable for high-pressure large-diameter working conditions (DN ≥ 300). ​ Track ball valve: The ball rotates along a specific track to reduce friction and wear, extend service life, and is suitable for media containing particles. ​ Performance advantages Reliable sealing: Metal valve seats or non-metallic valve seats such as polytetrafluoroethylene (PTFE) can achieve zero leakage, and some models meet the API 6D Class VI standard. ​ Extremely low flow resistance: The through-hole structure is similar to the inner diameter of the pipeline, with low fluid resistance, suitable for high flow rate scenarios (such as natural gas transportation). ​ Convenient maintenance: Modular design allows for online replacement of valve seats and seals, reducing down

Pneumatic Sleeve Control Valve is a versatile fluid regulation device combining pneumatic actuation with sleeve-type valve design, widely used in industrial processes requiring precise flow control. Driven by compressed air, the valve utilizes a piston or diaphragm actuator to move the sleeve assembly, which features a perforated cylinder surrounding the valve plug. This unique structure balances pressure forces on the plug, reducing actuator thrust requirements and enabling stable operation under high-pressure differentials.​ Petrochemical: Controls hydrocarbon flows in refining units and chemical reactors.​ Power Generation: Regulates steam and feedwater in boiler systems.​ Water Treatment: Manages flow in filtration and desalination plants.​ Metallurgy: Handles corrosive slurries and gas flows in smelting processes.​ With its combination of pressure balance, sealing integrity, and adaptability, the Pneumatic Sleeve Control Valve remains a preferred choice for processes demanding reliable flow modulation and shut-off in diverse industrial environments.

The Electric Single-seat Control Valve is a precision fluid regulation device renowned for its high sealing performance and accurate control, integrating electric actuation with a single-seat structural design. Driven by an electric motor or servo actuator, it enables remote operation and automated adjustment, making it ideal for modern industrial automation systems. The valve features a single-port design where the plug directly aligns with the seat, creating a tight seal that minimizes leakage—often achieving Class IV or higher leakage standards per API 598. Core Structural Advantages Tight Sealing: The single-seat configuration ensures direct contact between the plug and seat, enhanced by materials like stainless steel or hard-faced alloys for abrasion resistance. This makes it suitable for applications requiring strict shut-off, such as chemical reactors or steam systems. Precision Control: Electric actuators provide stable thrust and fine-positioning capabilities

The Electric Fluorine Lined Control Valve is a cutting - edge solution for fluid regulation in highly corrosive environments, integrating electric actuation with advanced fluoropolymer lining technology. Driven by an electric motor, it enables precise remote control and automated adjustment, allowing seamless integration into modern industrial automation systems. The valve body and internal components are coated or lined with fluorine - based materials, such as PTFE (Polytetrafluoroethylene) or FEP (Fluorinated Ethylene Propylene), which possess exceptional chemical resistance, effectively protecting the valve from aggressive acids, alkalis, and solvents.

The Pneumatic Bellows Control Valve is a specialized device in industrial fluid management, combining the reliability of pneumatic actuation with the flexibility of bellows technology. Driven by compressed air, the valve utilizes a bellows assembly—a flexible, accordion - shaped component—to translate pneumatic pressure into linear motion, precisely controlling the position of the valve plug. This unique design provides excellent sealing performance and protects internal components from corrosive media, as the bellows acts as a barrier, preventing leakage and ensuring the integrity of the valve's operation.

The Electric bellottws control valve is a cutting-edge device in industrial fluid regulation, integrating advanced electric actuation technology with precise control mechanisms. Driven by an electric motor, this valve enables seamless remote operation and automatic adjustment, eliminating the need for complex pneumatic or hydraulic systems. Its intelligent control system, often equipped with a built-in microprocessor, can precisely modulate the valve's opening degree according to real-time process signals, ensuring accurate regulation of fluid flow, pressure, and temperature.

The pneumatic piston butterfly valve is a highly efficient actuator in the field of industrial fluid control. Integrating the advantages of pneumatic actuation and butterfly valve structure, it utilizes a piston-type air cylinder as the power source. Compressed air propels the piston to move back and forth, driving the valve stem and butterfly disc to rotate for opening and closing control. Its core structure features an eccentric design (such as single-eccentric, double-eccentric, or triple-eccentric), enabling the butterfly disc and seat to form a tight sealing pair when closed. The sealing performance can reach zero-leakage standards, making it suitable for various working conditions, including cut-off, regulation, or throttling.

The fixed ball valve is a crucial device in the field of fluid control, standing out for its unique structural design and outstanding performance. This valve features a structure where the ball is fixed while the seats are floating. When subjected to medium pressure, the seats automatically press against the ball, creating a bi-directional seal that effectively prevents medium leakage. Its sealing performance can meet the requirements of API 6D standards. The surface of the ball undergoes hardening treatment and is paired with wear-resistant and corrosion-resistant seat materials, such as PTFE or metal alloys, enabling stable operation under high-pressure, high-temperature, and highly corrosive conditions, and ensuring a long service life.

The Sealing Ring Balanced Sleeve Control Valve stands as a pivotal device in the field of industrial fluid control, integrating the dual technical advantages of high-efficiency sealing and pressure balancing. Its unique sleeve structure, featuring precisely designed balancing holes, effectively counteracts the force exerted by the medium pressure on the valve core, significantly reducing the thrust required by the actuator and extending the valve's service life. This makes it particularly suitable for high-pressure differential applications. The sealing ring, crafted from high-performance elastic materials, ensures zero leakage or extremely low leakage rates through its tight fit with the valve core and sleeve, safeguarding the safety and stability of medium transportation.