We can offer the sanitary stainless steel butterfly valve as follow: Threaded butterfly valve, quick-installed butterfly valve, welded butterfly valve, flange butterfly valve, threaded-welded butterfly valve, flange-welded butterfly valve, extended welded butterfly valve, Pneumatic butterfly valve. Connection Mode: Flange-Thread Material Quality: SUS304, SUS316 Flux domination of pipeline: DN25-150 & 1"-6" Standard: ISO, DIN, SMS, IDF Website: Origin: China OEM:YES