... , flange butterfly valve, threaded-welded butterfly valve, flange-weldedbutterfly valve, extended welded butterfly valve, pneumatic butterflyvalve 2) Ball valve: quick-installed ... valve, triplet diaphragm valve, U-typediaphragm valve5) Sample valves, stop reversing valves, forged stainless steel valves, and pipefittings6) Standard: AAA, DIN, SMS, IDF, RJTPacking ...