Pneumatic sanitary butterfly valve is designed for food, pharmaceutical, biological engineering and other high cleanliness industry, to meet the strict requirements of sterility, no residue, easy to clean, the use of materials and structures in line with health standards, to ensure that the medium in the transport process of no pollution risk.
Core design requirements
Material Safety:
Body/valve plate: 316L stainless steel (low carbon, corrosion resistance), electrolytically polished surface (Ra ≤ 0.8μm), to avoid microbial attachment.
Seal: Food grade EPDM, silicone or PTFE, non-toxic, high temperature resistance (-20℃~150℃), in line with FDA/EC1935 standards.
Structure optimization:
No dead Angle design: smooth transition between the valve plate and the valve body, no grooves or gaps, to prevent medium residue.
Removable structure: The seat is quickly connected to the body for CIP (on-line cleaning) and SIP (steam sterilization).
Connection mode:
Clamp quick assembly (Tri-Clamp, DIN11851) : Fast sealing of pipes with sanitary clamp without bolts, avoiding contamination.
Welding type: Direct argon arc welding of pipe and valve body to ensure zero leakage, suitable for aseptic system.
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