Round Star DFD-80CF – DN80 Flanged Cast Iron Solenoid Valve
✅ Round Star DFD-80CF is a pilot-operated solenoid valve with a DN80 (3-inch) flanged connection, designed for automatic control of fluid flow in industrial piping systems. It is suitable for water, oil, and other compatible media.
✅ The valve features a Normally Closed (NC) configuration. When the coil is de-energized, the valve remains closed. When electrical power is applied to the solenoid coil, the valve opens to allow fluid flow.
✅ The valve body is manufactured from cast iron with a protective coating for improved durability and corrosion resistance in industrial environments. The flanged connection provides a strong and secure installation on DN80 pipelines.
✅ The DFD-80CF uses an NBR sealing diaphragm, making it suitable for water applications and other media compatible with NBR sealing material. Its pilot-operated design provides stable opening and closing performance.
✅ The valve is available with different coil voltage configurations, including 24VDC and 220VAC, allowing convenient integration into industrial control panels and automation systems.
✅ With its DN80 / 3-inch connection, the DFD-80CF is suitable for controlling flow in larger pipelines where threaded solenoid valves are not practical.

Technical Specifications
✅ Product Name: Solenoid Valve
✅ Model: DFD-80CF
✅ Brand: Round Star
✅ Origin: Taiwan
✅ Valve Type: Pilot-Operated Solenoid Valve
✅ Operation: Normally Closed (NC)
✅ Size: DN80
✅ Connection Size: 3 Inch
✅ Connection Type: Flanged
✅ Valve Body Material: Cast Iron
✅ Seal Material: NBR
✅ Suitable Media: Water, Oil and Compatible Fluids
✅ Operating Pressure: 0.3 – 12 Bar
✅ Operating Temperature: Approximately -5°C to +80°C
✅ Coil Voltage: 24VDC / 220VAC
✅ Coil Protection: IP65
Advantages
✅ Strong flanged connection
✅ Suitable for large DN80 pipelines
✅ Durable cast iron body
✅ Reliable NBR sealing
✅ Normally Closed configuration
✅ Multiple coil voltage options
✅ Automatic electrical operation
✅ Easy integration into control systems
✅ Easy installation and maintenance
Applications
✅ Water Supply Systems
✅ Water Treatment Systems
✅ Irrigation Systems
✅ Fire Protection Systems
✅ HVAC Systems
✅ Cooling Systems
✅ Manufacturing Plants
✅ Industrial Production Lines
✅ Industrial Oil Systems
✅ Automatic Fluid Control Systems
Hotline: 0084 787900099