Sanitary Stainless Steel Hygienic Butterfly Valves with EPDM Silicone Seal. FDA and 3A Certified: Sanitary condition passed FDA Certification and meets 3A standards for food and dairy. Customizable Sizes: Sizes range from DN10 to DN150 (1/2" to 6") with custom options available. Multiple Connection Types: Supports Welding, Clamped, Thread, and Flange connections for versatile installation. Four Position Design: Allows slow opening to reduce stress on valve seat with two additional flow positions. High Precision Manufacturing: Milling and chamfering done by single CNC process with no hand-grinding required. 18 Months Warranty: Comprehensive 18-month warranty coverage for normal use conditions. Low MOQ: Minimum Order Quantity is just 1 PC, suitable for small batch testing.