The CN700 Low-Noise Control Valve is divided into the CN702 and CDN702 series, mainly designed to reduce the noise of compressible fluids. To adapt to the throttling, diffusion and expansion of gases, the valve core adopts a pressure-balanced structure, and the sleeve is equipped with many symmetrical small holes to reduce pressure drop. The fluid passage is in an S-shaped streamline, and a deflector wing is also provided to improve the smooth flow of the fluid around the sleeve. Therefore, the control valve has low pressure drop loss, large flow rate, low noise and less cavitation corrosion. The control valve is equipped with the RSMF series multi-spring pneumatic diaphragm actuator, which has a simple and compact structure, stronger stability, large output force and long service life.
This series of regulating valves employ multi-stage valve cores and porous structures to gradually reduce the flow velocity of the fluid, disperse energy, and minimize turbulence and cavitation phenomena. As a result, the noise can be significantly reduced (typically by 20-40 dB). The flow characteristics are linear or equal percentage, ensuring good linearity of flow regulation and enabling precise control of the fluid. The pneumatic low-noise regulating valve not only guarantees the accuracy of process control but also effectively improves the working environment, meeting the dual demands of modern industry for environmental protection and efficient production.
Material: WCB、WCC、LCB、LCC、WC6、WC9、CF8、CF8M、CF3、CF3M、Ti....
Nominal Size: DN25~700 NPS 1”~28”
Pressure Rate: PN16、PN25、PN40、PN63、PN100、CL150、CL300、CL600
High Pressure：CL900 、CL1500 、CL2500
Temperature Range: Normal temperature type P: -17℃ to +230℃
High-temperature type EI: +230℃ to +525℃
Low-temperature type LE-I: -45℃ to -17℃ LE-II:-100℃~-45℃
LE-III:-196℃~-100℃
Operator: Pneumatic, electric, manual, pneumohydraulic linkage, electro-hydraulic linkage and other types.
Application range: Suitable for precise regulation and effective control of fluid flow, pressure, temperature or liquid level in pipeline systems of water supply, petrochemical, metallurgy, mining, light textile, energy, papermaking, food, steel and other industries.
Expanding Slab Gate Valve is a type of slide valve that utilizes parallel gate plates as its closing mechanism. These plates are equipped with a spreading mechanism to enhance functionality. The force pressing the plates against the valve seat is regulated by the medium pressure acting on either a floating gate plate or a floating valve seat. In dual gate flat gate valves, the inter-plate spreading mechanism provides additional pressing force. This valve is designed with innovative features including low operating torque, rapid actuation, minimal vibration, extended operational life, and enhanced safety. It is mainly used for the isolation or venting of gases and liquids in pipeline systems.
The Throttle Stop Valve is mainly composed of valve body, valve cover, valve flap, and valve stem. The handwheel applies a certain torque at the upper end of the valve stem. The valve stem is passed to the valve petals to move it up and down along the valve stem axis to realize the full-opening, full-closed movements and regulating traffic functions. The force applied by the hand wheel can be obsessed with the valve seat to reach the sealing state; Location, change the cross-sectional area between the valve petals and the cover of the valve seat, and achieve the purpose of regulating media flow. At the same time, the throttle stop valve does not rub with the valve seat before turning off, thereby reducing the wear of the cover and effectively extending the life of the valve.
There is an oil groove between the valve body and the sealing surface of the pressure-balanced plug valve, and sealing grease can be injected into the valve seat through the oil nozzle at any time to improve the sealing performance. The material of the parts and the size of the flange can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.