Wafer Pattern Ductile Iron Butterfly Valve PTFE Liner Stainless Steel Disc

This wafer-pattern butterfly valve combines a robust ductile iron body with a corrosion-resistant stainless steel disc and a chemically inert PTFE liner. It is engineered for reliable flow isolation and control in industrial systems where space is limited and chemical compatibility is essential. Designed to be mounted between flanges, this valve is ideal for water treatment, chemical processing, and general industrial applications.

Technical Data:

• Body Material: Ductile iron (GJS-400-15 or equivalent), epoxy-coated for enhanced corrosion resistance
• Disc Material: AISI 316 stainless steel, precision-machined for smooth operation and long service life
• Liner Material: Virgin PTFE liner, providing exceptional chemical resistance, low friction, and broad temperature tolerance from approximately -10°C to +190°C
• Connection Type: Wafer pattern for installation between PN10, PN16, or ANSI 150 flanges
• Pressure Rating: PN10
• Temperature Range: -10°C to +190°C
• Size Range: Commonly available from DN50 (2") to DN300 (12"); other sizes available on request
• Actuator Interface: ISO 5211 top mounting pad, suitable for manual levers, gearboxes, or future actuator installation

Key Features:

• Compact Wafer Design: Allows for quick and simple installation between flange pairs with minimal face-to-face space required
• Corrosion Resistance: The PTFE liner and stainless steel disc combination ensures durability in chemically aggressive environments
• Low Maintenance: The PTFE seat minimises wear and offers long-term sealing performance with little upkeep
• Future Automation Ready: ISO mounting pad supports upgrade to pneumatic or electric actuators
• Optimised Flow Performance: The valve provides minimal flow resistance when fully open, maintaining efficient system operation

Typical Applications:

• Water treatment and wastewater systems
• Chemical processing lines handling corrosive or reactive media
• HVAC systems, including hot and chilled water circuits
• Food and beverage processing where chemical resistance is needed
• Industrial installations where space constraints call for compact valve solutions

Summary:

This wafer-pattern butterfly valve with a ductile iron body, stainless steel disc, and PTFE liner is a high-performance solution for applications requiring excellent chemical resistance, compact installation, and reliable sealing. Its robust design, wide operating range, and compatibility with automation systems make it a versatile choice for both new installations and retrofit projects.