WAFER BUTTERFLY DAMPER DN-1600 WITH ON-OFF PNEUMATIC ACTUATION
material body: carbon steel S-275-JR
material disc:  carbon steel S-275-JR
material shaft: stainless steel AISI-304
material packing: graphite rings
seats: metal to metal. Disc swinging through
disc no contacting the valve body
tightness: 98 %
actuation: with a double acting pneumatic actuator on-off
              with a solenoid valve 5/2 ways  220 V.
              with an electric limit switches box (open-closed)

DOUBLE FLANGED BUTTERFLY DAMPER DN-2000 WITH PNEUMATIC ACTUATION ON-OFF
material body: carbon steel 15 Mo 3
material disc:   carbon steel 15 Mo 3
material shaft: stainless steel AISI-316
material packing: graphite rings
double flanged butterfly damper as per DIN PN 10
seats: metal to metal. Step seat design. Ledge-seats.
disc striking the ledges in the body.
tightness: 99´8 %
actuation: with a double acting pneumatic cylinder
              with a solenoid valve 5/2 ways  24 V.
              with two magnetic limit switches (open-closed)