Image Threaded Lug Style Butterfly Valve Markets Mining Jump to Section Product Options Related Products Product Options Part Number Size Material BFVL200 2" Ductile Iron BFVL300 3" Ductile Iron BFVL400 4" Ductile Iron BFVL600 6" Ductile Iron BFVL200E 2" Ductile Iron BFVL300E 3" Ductile Iron BFVL400E 4" Ductile Iron BFVL600E 6" Ductile Iron Related Products Image 150 LB. ASA Forged NPT Threaded Flange Image 150 LB. ASA Forged Slip-On Flange Image 150# ASA Flanged King Combination Nipple Image Wafer Style 150lb. Butterfly Valve with Aluminum Bronze Disc Image Wafer Style 150lb. Butterfly Valve with Iron Disc Image Wafer Style 150lb. Butterfly Valve with Stainless Disc