Double Flange Butterfly Valve with Vulcanized Seat
Type Available: Flanged type.
Sizes Available: DN50mm to DN3000mm
Pressure Range: PN (MPa): 1.0, 1.6, 2.0, 2.5
Materials Standard: Others on request
Basic Design: BS5155/EN593
Face to Face Dimension: DIN3202 F4, EN558-1 Series 13 &14
Inspection & Testing: API 598,
Flanged End Dimension: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,BS 10 Table D, BS 10 Table E
Top flange: ISO 5211
Suitable Mediums: Fresh water, sea water, gas, oils, acids, alkalis, etc
Suitable Temperature: -26-82C
1. High reliability of strength and rigidity.
2. Adopt double eccentric construction, small friction of seat and torque during opening or closing..
3. The disc is truss framed with plates, lower flow resistance..
4. Good seal function, 0 leakage.
5. The rubber sealing ring could be replaced on pipeline without removing the valve.(DN>=700)
6. The axle bearings are self-lubricated type, oil is not needed, frication drag is small during operation.