Size: NPS1 (DN25) — NPS16(DN400)
Pressure: Class150 (PN20) — Class600 (PN110)
Body material: Carbon steel, Stainless steel or others
Trim materials: Stainless steel (std.)
End connections: Flanged
Size: NPS1 (DN25) — NPS12(DN300)
Pressure: Class150 (PN20) — Class600 (PN110)
Body material: Carbon steel, Stainless steel, or others
Trim materials: Stainless steel (std.)
End connections: Flanged
UTMOST eccentric rotary disc valve has the outstanding advantages of simple structure, small volume, lightweight, strong flow capacity, wide adjustable range, wide service temperature range, small leakage, good stability, low cost, and long service life.
As a professional control valve factory, the sealing form of UTMOST eccentric rotary control valve is hard-seal, which is connected with a pneumatic actuator, matching positioner, solenoid valve, and other accessories to realize proportional adjustment.
The rotary valve working principlee is a fan-shaped ball valve with eccentric rotation. The eccentric ball core of eccentric rotary plug control valve is tangent to the valve seat, and when it is opened, the spool is separated from the valve seat. When closed, the spool gradually confects the seat of valve, so that the ball exerts a pressing force on the valve seat. The eccentric rotary valve has a simple flow path and low resistance.
Compared with single seat control valve and double seat valves with the same caliber, eccentric rotary disc valve has a larger flow capacity, but its weight is only about 1/3. The spool and the main shaft only rotate, so the friction force it bears when the switch rotates is very small. The flexible arm of the eccentric rotary valve spool produces small elastic deformation and elastic tension under the thrust of the actuator, which makes the contact between the spool and the valve seat more close and firm, so the leakage of the eccentric rotary control valve is very small. At the same time, the thrust required to close the valve is smaller than that of the ball valve and butterfly valve.
An eccentric plug valve uses a rotating plug with an off-center shaft to control flow, providing a tight seal and reducing wear. A butterfly valve uses a rotating disc or "butterfly" to regulate flow, offering quick and easy operation with less sealing capability compared to an eccentric plug valve.
Tight Shut-Off: The eccentric design ensures a tight seal when closed, minimizing leakage.
Precise Control: Provides accurate flow regulation, making it ideal for applications requiring precise control.
Durability: The camming action reduces wear on the valve components, extending the valve's service life.
Low Maintenance: Requires less maintenance compared to other types of control valves due to its simple and robust design.
Eccentric rotary plug control valves are used in various industries, including:
Chemical Processing: For controlling the flow of corrosive and hazardous fluids.
Oil and Gas: In pipelines and processing plants for precise flow regulation.
Water Treatment: For managing the flow of water and wastewater.
Power Generation: In steam and condensate systems for efficient flow control.
Eccentric rotary disc valve: Uses an eccentric, off-center plug that rotates within the valve body to regulate flow, offering precise control and minimizing wear, especially in slurry and high-viscosity applications.
Globe valve: Typically uses a linear motion to control flow. It has a stem and a disc that moves up and down to open or close the valve. Globe valves are generally better for on/off control but may wear faster in throttling applications, especially with abrasive fluids.
Yes, the eccentric rotary disc valve is suitable for high-pressure applications. Their design provides tight shutoff and can handle a range of pressures, making them ideal for use in industries like power generation, chemical processing, and oil and gas. However, the valve’s materials and specifications must be chosen based on the specific pressure and temperature conditions of the system.
