Nile Drip Products

Butterfly Valves


  • Size: DN50-DN300
  • Pressure: PN10,PN16,10K,CLASS150
  • Body Materials: DI
  • Disc Materials: CF8M
  • Seat Materials: EPDM
  • Applicable Medium: Water,Oil etc

1.Design and manufacture according to BS5155.
2.Face to face according to API609.
3.Flange drilling according to CLASS 150/PN10/PN16/10K
4.Top flange drilling according to ISO 5211.
5.Pressure test according to API598.

1. Simple structure, small external size, short structure length, small volume, light weight, suitable for large diameter valves.
2. When fully open, the effective flow area of the seat channel is large and the fluid resistance is small.
3. Convenient opening and closing, fast, good adjustment performance.
4. The opening and closing moment is small, because the butterfly plate on both sides of the rotating shaft is basically equal to the action of the medium, and the direction of the torque is opposite, so the opening and closing is less effort.
5. Sealing surface materials are generally rubber and plastic, so the low-pressure sealing performance is good.

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