Product Name: Concentric Double Flanged Butterfly Valve

Concentric Double Flanged Butterfly Valve Standard:
 Design standard conform to: ANSI/AWWA C504
 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: BS5155 Short, ISO5752 (Series 13), DIN 3202 F16
 Test standard conform to: API598

Concentric Double Flanged Butterfly Valve 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.

Concentric Double Flanged Butterfly Valve Performance:
   Nominal Diameter: DN40-DN1200
   Nominal Pressure PN (MPa):
   1.0, 1.6, 2.0, 2.5
Concentric Double Flanged Butterfly Valve Testing pressure (water) Ps (MPa)
      Body seat: 1.5 times rated pressure
      Seat test:  1.1 times rated pressure
Suitable medium: fresh water, sea water, gas, oils, acids, alkalis, etc.