KOSO 210E 220E Eccentric Segmental Ball Valves for Oil Refining Power Generation

KOSO 210E (wafer type) and 220E (flanged type) are eccentric segmental ball control valves designed for high-performance modulating service. Compared with conventional globe valves, they feature a compact, lightweight structure, high flow capacity (Cv), wide rangeability, and reliable sealing performance. These valves are widely used for precise flow control of clean fluids, fibrous fluids, slurry, and vapor in process industries.

• Eccentric rotary structure eliminates friction between ball and seat, extending service life
• High Cv value and large rangeability up to 100:1 for accurate regulation
• Compact and lightweight design for easy installation and maintenance
• Available in wafer (210E) and flanged (220E) connection types
• Excellent anti-wear, anti-scouring, and anti-blocking performance
• Supports soft seat (bubble tight) and metal seat options
• Compatible with pneumatic, electric actuators and various valve positioners
• Stable performance under high pressure and high temperature conditions

• Model: 210E (Wafer), 220E (Flanged)
• Nominal Size: DN25 (1") ~ DN400 (16")
• Pressure Class: ANSI Class 150–600; JIS 10K–40K
• Temperature Range: -45°C ~ +400°C
• Flow Characteristic: Approximate linear
• Rangeability: 100:1
• Leakage Class: Soft seat: ANSI Class VI (bubble tight); Metal seat: ANSI Class IV
• Body Material: WCB, CF8, CF8M, etc.
• Seat Material: R-TFE, SUS316, Stellite hardened
• Actuator: Pneumatic diaphragm / piston / electric
• Application: Modulating control & on-off service

• Oil & gas production and transportation
• Petrochemical and chemical processing
• Power plants (thermal, biomass, waste-to-energy)
• Metallurgy, mining, and slurry pipelines
• Paper-making, textile, and fiber industries
• Water supply, wastewater treatment
• District heating and cooling systems
• Industrial process flow control

1. What is the difference between 210E and 220E?
   210E is wafer type for space-saving installation; 220E is flanged type for higher pressure and stronger pipeline connection.
2. Are these valves suitable for slurry or dirty media?
   Yes. The eccentric segmental ball design provides strong anti-blocking and scouring resistance.
3. Can the seat be replaced without removing the valve?
   Yes, the seal ring can be converted or replaced on-site quickly.
4. What control accessories are supported?
   They match KOSO, Flowserve, Siemens, ABB, Fisher positioners, solenoid valves, air sets, and limit switches.
5. What is the typical service life?
   Normal service life exceeds 5 years with proper operation and maintenance.

For pricing, customization, technical support, or stock inquiry:

• WeChat / WhatsApp / Phone: +86 13472860702
• Email: (can be added upon request)
• Service: OEM / ODM / Technical on-site support

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