METAL TO METAL WAFER BUTTERFLY VALVE DN-800 WITH ON-OFF ELECTRIC ACTUATION
material body: alloyed cast GGG-HS-40
material disc:  alloyed cast GGG-HS-40
material shaft: stainless steel AISI-316 Ti
material packing: graphite rings
butterfly valve with 4 centering holes in necks as per DIN PN 10
butterfly valve with extended long neck execution
seats: metal to metal. Disc swinging through. Class II
disc no contacting the valve body
actuation: with an on-off electric actuator 3 x 380 V. 50 Hz. including:
                  - two limit switches
                  - two torque switches
                  - handwheel for emergency
                  - visual position indicator