Double flange type  EN593
Face to face length acc.to ISO5752 series 14(DIN3202 F4)
Flange dimension and drillings to ISO7005-2(DIN2501,EN1092-2)
Size: DN100--DN3600
Pressue: PN10/16/25/40
Suitable medium: water and low-corrosive liquid
Suitable temperature: -10--120 degree.

This underground horizational pipe net butterfly valve, the valve posses unique two-way synchronic display mechanism. you can see the valve opening or closing status from ground right sight.