Design standard conform to: MSS SP-67, API609, EN593
Connection flange conform to: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,
JIS B2212/2213, BS 10 Table D, BS 10 Table E
Top flange conform to: ISO 5211
Face to face conform to: API609, ISO5752 series 20, BS5155
Test standard conform to: API598

wafer type corrosion resistant butterfly valves design characters:

1.Correcting holes are made on flange according to standard, easy correcting during the installation.
2.Through-out bolt or one-side bolt used. Easy replacing and maintenance.
3.Shaft and disc connected by pin, torque screw or non pin, to achieve the opening and closing.

wafer type corrosion resistant butterfly valves performance:

Nominal Diameter:DN50-DN1200
Nominal Pressure PN (MPa): 1.0, 1.6, 2.0, 2.5
Testing pressure (water) Ps (MPa)
Body seat: 1.5 times rated pressure
Seat test: 1.1 times rated pressure