Page 22 of Industrial Process Control Valves from China Supplier

The self-operated pressure regulator in the specified range (Sizes: 1/2 Inch - 12 Inch, DN15-DN300; Class Rating: Class 150-600 LB, PN20-PN100; Materials: ASTM A216 WCB) is a versatile solution for gas, air, or water regulation. It harnesses the medium's power for self-actuation and adjustment, eliminating the need for external power sources. Notably, this regulator can function autonomously, even in environments without electricity or gas supply, conserving energy effectively. Within its designated range, users have flexible control over pressure settings. This feature-rich regulator offers reliability and convenience, catering to various industrial applications while promoting energy efficiency and ease of use.

Our high-pressure control valves are designed with advanced labyrinth trim to mitigate noise and erosion, ideal for severe service applications. The multi-stage stacked disk trim ensures a controlled pressure drop at each stage, preventing high-velocity flow and cavitation. Engineered for reliability, these valves offer zero stem leakage and a long service life. Quick disassembly and easy maintenance reduce costs, while wear-resistant materials and precise design prevent trim sticking or galling. Enjoy superior noise reduction compared to competitors, ensuring safe and efficient operation.

The Single Seated Control Valve offers versatility with pressure ratings ranging from Class 150 LB to 600 LB (PN20 to PN100) and is constructed from durable ASTM A216 WCC materials. With a wide temperature range of -198 to +593°C, it caters to various applications involving liquids and gases. Its straight-through valve body design facilitates easy trim replacement and features column-oriented unbalanced valve trim. Specifically designed for chemical or hydrocarbon treatment scenarios, it excels in controlling non-lubricated or viscous liquids. Metal-to-metal seals ensure reliable performance across large pressure differentials and temperature variations, while an option for metal-to-PTFE seals ensures tight shutoff where needed. The valve embodies efficiency and adaptability in demanding industrial environments.

Available in port sizes ranging from DN25 to DN50 (1 Inch to 2 Inch) and pressure ratings from PN25 to PN32 (Class 1500 LB to 2500 LB), this pneumatic boiler blowdown control valve is engineered to handle water, steam, and gas mediums. It serves as an anti-cavitation multi-stage pressure reduction valve, featuring a specially designed trim that facilitates incremental fluid pressure reduction, thus controlling fluid velocity to prevent cavitation damage. The trim's separable throttling part enhances sealing face protection, while the hardened surface treatment ensures durability with a hardness of approximately HRC70. Notably, a large notch on the plug surface prevents blockage from granular fluids. With excellent erosion resistance and prolonged service life, this valve offers an optimal solution for intermittently eliminating insoluble sediments and impurities from boiler water in power plants.

Available in sizes ranging from DN15 to DN300 (1/2 Inch to 12 Inch) and pressure ratings of PN10, PN16, and Class 150 LB, this pressure reducing valve, crafted from ASTM A216 WCB material, is a precision instrument for micro (differential) pressure regulation. Operating without external energy, it harnesses the controlled medium's energy to actuate the valve, controlling the plug's position to adjust interception area. This alteration modulates upstream and downstream differential pressure and flow rate, ensuring stable downstream pressure (control downstream pressure type) or relief pressure (control upstream pressure type). Boasting sensitive response, superior sealing, and minimal pressure fluctuations, it finds extensive use in micro-pressure control applications across diverse industrial equipment.

The eccentric rotary plug control valve features a one-piece body design and connects via flanged (ASME Class 150 / PN25) or wafer type (ASME Class 150 / PN25) connections. Made of ASTM A216 WCB material, it incorporates an eccentric plug that remains slightly apart from the valve seat until near closure, allowing dynamic alignment for effective shut-off. Ideal for handling mediums like slurries, grit, or solids, these valves offer superior control accuracy and wide rangeability. They're often equipped with pneumatic actuators, digital/smart positioners, and air filter regulators for precise flow control, making them versatile solutions for various industrial applications.

The eccentric rotary plug control valve boasts a one-piece body design, adaptable for connection via flanged (ASME Class 150 LB / PN25) or wafer type (ASME Class 150 LB/ PN25) configurations. This valve type features a uniquely shaped plug that maintains a slight distance from the valve seat until near closure, enhancing dynamic alignment for optimal shut-off. Commonly referred to as eccentric plug valves, they incorporate a plug-shaped component following an eccentric path during rotation. This design ensures minimal contact between the plug and seat until just before closure, facilitating precise cutoff as sealing surfaces dynamically align. Widely employed in applications handling slurries, grit, or solids, these valves offer superior control accuracy and wide rangeability, complemented by pneumatic actuators, digital/smart positioners, and air filter regulators for meticulous flow control.

The pressure regulating valve, a crucial nitrogen sealing apparatus, consists of a control valve, actuator, pressure spring, pilot, pulse pipe, and ancillary components. Its primary function is to uphold gas pressure, typically nitrogen, atop a vessel, thereby averting material exposure to air, preventing volatilization and oxidation, and ensuring vessel integrity. Especially adept for safeguarding gas containment systems in sizable storage tanks, this product boasts energy efficiency, swift responsiveness, dependable operation, and user-friendly maintenance. Its versatility extends across various sectors including petroleum, chemical industries, among others, where it finds widespread application.

The self-operated temperature control valve uses the principle of liquid thermal expansion to achieve automatic adjustment without an auxiliary actuator. The liquid in the temperature sensor expands uniformly. This valve controls the medium's temperature by expanding or contracting the temperature-sensitive liquid in the sensor, thus adjusting the valve opening. When the medium's temperature exceeds the set value, the liquid expands, pushing the spool down to close the valve and reduce thermal media flow. When the temperature falls below the set value, the liquid contracts, and the reset spring pushes the spool to open, increasing the flow. This valve is used in heating, air conditioning, domestic hot water, petrochemical, electric power, textile, rubber, food, and other industries.

The pressure reducing valve is designed for parallel water supply systems serving both firefighting and domestic needs. In the event of a fire, it prioritizes water flow to firefighting efforts by automatically cutting off the domestic supply, ensuring adequate water for emergency response. Once firefighting operations cease and water pressure stabilizes, the valve reopens to restore the domestic supply. This mechanism eliminates the need for a separate dedicated firefighting water pipeline, significantly reducing construction costs and water usage. Ideal for integrated water management, this valve ensures efficient and reliable water distribution in critical situations.

Our no-slamming hydraulic check valve features a slow-closing mechanism and automatic hydraulic operation, ensuring optimal opening and closing speeds. Constructed from durable ductile cast iron, cast steel, and stainless steel, it is available in sizes DN50 to DN800 (2 inches to 32 inches) and supports pressure ratings of PN10, PN16, and PN25 with flanged end connections. Designed to prevent water hammer by avoiding valve slamming during closure, it maintains a medium temperature range of 0°C to 80°C. The valve system includes a main valve, check valve, needle valve, ball valve, microform filter, and pressure gauge, providing efficient and reliable performance for various applications.

Constructed from durable materials such as ductile cast iron, cast steel, and stainless steel, our pressure relief/sustaining control valve is available in sizes ranging from DN50 to DN800 (2 inches to 32 inches). It supports pressure ratings of PN10, PN16, and PN25, with flanged end connections for easy installation. This versatile valve system includes a main valve, a pressure relief/sustaining pilot valve, a needle valve, a ball valve, a microform filter, and a pressure gauge. It operates hydraulically, offering dual functionality as a pressure relief valve—maintaining water supply pressure below a preset safety limit—and as a pressure sustaining valve—ensuring upstream pressure remains above a specified value for consistent water supply.