Bodies : Cast Iron, Ductile Iron, Built in Conformance to AWWA C-504-2000 Specifications
Body Coating : Two Part Polyester Epoxy
Discs : Epoxy Coated Ductile Iron with 304SS or 316SS Disc Edge, Aluminum Bronze, All 304SS or 316SS, Coatings per NSF - 61 Standards
Seats : EPDM , Buna N, Viton, Hypalon, Silicone, Neoprene, One-Piece Fusion Bonded Covering the Interior Body
Stems : 304SS, 316SS
Stem Retention : Tapered Bolt(s) with Locking Nut
Bearings : Bronze 2 - Top and 1 - Bottom
Working Pressures : 150 psig, 250 psig, Bi - Directional Shutoff
Butterfly Valves the buttcrfly valve is such a valve as uses a round butterfly board as the disc,is opened or closed and adjusts the liquid channel along with the stem movcment.upon the different valve axes ,central lines of the body and positions of both sealing surface and central line of the seat ring.