U type/ double flanged butterfly valve

Standard:
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
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.

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