Butterfly Valve Sealing Structure

https://youtu.be/mk3KiXBd8Go

1) Material: DI Body Epoxy Resin Coated Red, DI Disc Powder Coated, NBR Seat, 45# Steel Stem, DI Gear Box With PP Cover, Steel / DI Hand Wheel.
2) Rubber Coated Position: Cover The Whole Inner Surface.
3) Size: 2" to 12" (DN50 to DN300)
4) Nominal Pressure: 1.6MPa
5) Sealing Test Pressure: 1.76MPa
6) Shell Test Pressure: 2.4MPa
7) Applicable Temperature: 0~80℃
8) Fluid Medium: Water
9) Switch Contact Rating: DC24V, 1A
10) Connecting Diameter(2"-12"): (60.3)(73 , 76.1)(88.9)(108 , 114.3)(133 , 139.7 , 141.3)(159 , 165.1 , 168.3)(219.1)(273)(323.8)