Lug Type Stainless Steel Butterfly Valve Body CF8 CF8M Duplex

Designed for OEM valve manufacturers and global assembly facilities, our Lug Type Stainless Steel Bare Valve Body provides a robust and precision-machined foundation for building high-performance fluid control systems.

Manufactured from investment-cast stainless steel alloys including CF8 (304), CF8M (316), and Duplex, this bare body offers outstanding resistance to aggressive media. The Lug-style design features precise threaded metal inserts, allowing the assembled valve to perform unidirectional "dead-end" service. We supply these bodies fully machined and ready for the immediate insertion of your custom seats, discs, and stems.

Core Engineering Advantages:

• Material Integrity: High-quality casting process ensures stable chemical resistance and eliminates internal porosity.
• Precision Machining: Strict CNC machining of internal dimensions guarantees a perfect fit for various seat materials (PTFE, EPDM, NBR).
• Ready for Assembly: Equipped with a standardized ISO 5211 top flange for direct and rapid actuator integration.

We supply these high-quality machined bodies directly to Valve Brands, OEM Assemblers, and Industrial Maintenance Facilities.

Once fully assembled with the appropriate internal components, valves utilizing our CF8/CF8M bodies are heavily deployed in petrochemical refining, industrial water treatment, metallurgy processes, and food & beverage processing lines where highly corrosive conditions exist.

Q1: How should I choose between CF8 and CF8M for my valve assembly?

A: CF8 is equivalent to 304 stainless steel and is excellent for general corrosive environments. CF8M contains Molybdenum (equivalent to 316 SS), providing significantly better resistance to pitting and crevice corrosion, which adds more value for your end-users in chemical or coastal applications.

Q2: Are these valve bodies supplied fully machined?

A: Yes. While we are a foundry, we provide the bodies fully CNC machined. The internal bore, shaft holes, threaded lugs, and top flange are machined to exact tolerances, ready for your assembly line.

Q3: Can this lug body be used for dead-end service once assembled?

A: Yes. The threaded lug design allows the downstream pipe flange to be removed while maintaining full pressure on the upstream side. This is a critical selling point for your assembled lug valves.

Q4: Do you follow standardized dimensions for actuator mounting?

A: Absolutely. All our butterfly valve bodies feature an ISO 5211 standard mounting pad, ensuring seamless compatibility with standard manual gearboxes, pneumatic, and electric actuators.