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GEMÜ butterfly valves

Butterfly valves in plastic and metal

  • Areas of application and industrial sectors
  • Valve type
  • Technical data

Areas of application and industrial sectors

GEMÜ butterfly valves are primarily used in industrial applications and the chemical industry, as well as the fields of water supply and water/waste water treatment. The concentric and single-eccentric designs are available as standard. However, the double-eccentric and triple-eccentric shut-off valves are also available for projects on request. Use of matched control components such as position indicators, positioners and process controllers allows GEMÜ butterfly valves to also be used in control circuits.

Valve type

A spherical rotating body equipped with a flow channel is rotated 90° in a housing. Based on the position of the ball, the valve is then either closed, partially open or open. Gaskets inserted into the housing are used for sealing at the surface of the ball.

Technical data

OperationManual, pneumatic, motorized
ConnectionsUnion ends, threaded sockets, butt weld spigots
Operating pressure0 - 16 bar
Body materialsMetal: Aluminium, stainless steel, cast iron, brass, SG iron, cast steel
Plastic: PES, PP, PVC
Media temperatur-60 - 210 °C
Nominal sizesDN 15 - 1600
1 2 3
GEMÜ 410
410
Union end
Pneumatic
PVC-U, grey
6 bar
60 ° C
GEMÜ 411
411
Spigot; Threaded socket
Manual
1.4581; CW617N (brass)
10 bar
100 ° C
GEMÜ 415
415
Spigot; Threaded socket
Pneumatic
1.4581; CW617N (brass)
10 bar
100 ° C
GEMÜ 417
417
Union end
Manual
PVC-U, grey
6 bar
60 ° C
GEMÜ 423
423
Union end
Motorized
PVC-U, grey
6 bar
60 ° C
GEMÜ 428
428
Threaded socket
Motorized
1.4581; CW617N (brass)
10 bar
100 ° C
GEMÜ 480
480
Flange
With bare shaft
EN-GJS-400-15
16 bar
150 ° C
-10 ° C
GEMÜ 481
481
Flange
Pneumatic
EN-GJS-400-15
16 bar
150 ° C
-10 ° C
GEMÜ 487
487
Flange
Manual
EN-GJS-400-15
16 bar
150 ° C
-10 ° C
1 2 3

Uranium removal and partial deionization at the Trollmühle Waterworks

GEMÜ butterfl y valves at the Trollmühle Waterworks - Uranium removal and partial deionization using Uranex® and Carix® procedures
Currently, the waterworks at the Trollmühle water supply authority in Windesheim near Bingen am Rhein supply approximately 43,000 people in 14,000 households with 2.2 million m³ drinking water per year. At peak times, this means a daily dispensing volume of up to 8500 m³.
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