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GEMÜ ball valves

Ball valves in plastic and metal

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

Areas of application and industrial sectors

Ball valves can be used in many different applications. However, they are primarily used in industrial processes, in the fields of water supply and water/waste water treatment. In addition to this, GEMÜ plastic ball valves are successfully used in the chemical industry. Alongside valves with straight through body (2/2-way valves), T valves (3/2-way valves) are also available. Accessories, such as seal adjusters and stroke limiters, manual overrides, proximity switches, optical position indicators and electrical position indicators, round off the ball valve portfolio.

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, clamps, flanges, threaded sockets, solvent cement sockets, welded sockets, butt weld spigots 
Operating pressure0 - 68 bar
Body materialMetal: Stainless steel
Plastic: PP, PVC, PVDF
Media temperatur-80 - 180 °C
Nominal sizesDN 8 - 150
1 2 3
GEMÜ 707
707
Threaded socket
Manual
1.4408, investment casting
68 bar
180 ° C
-20 ° C
GEMÜ 710
710
Flange; Solvent cement socket; Union end
Pneumatic
ABS; PP-H; PVC-C; PVC-U, grey; PVDF
16 bar
100 ° C
-20 ° C
GEMÜ 711
711
Flange; Spigot; Threaded socket
Manual
1.4408, investment casting
63 bar
180 ° C
-20 ° C
GEMÜ 712
712
Flange; Spigot; Threaded socket
Manual
1.4408, investment casting
63 bar
180 ° C
-30 ° C
GEMÜ 717
717
Flange; Solvent cement socket; Union end
Manual
ABS; PP-H; PVC-C; PVC-U, grey; PVDF
16 bar
100 ° C
-20 ° C
GEMÜ 723
723
Flange; Solvent cement socket; Union end
Motorized
ABS; PP-H; PVC-C; PVC-U, grey; PVDF
16 bar
100 ° C
-20 ° C
GEMÜ 728
728
Flange; Spigot; Threaded socket
Motorized
1.4408, investment casting
63 bar
180 ° C
-20 ° C
GEMÜ 740
740
Clamp; Spigot
Manual
1.4404, investment casting
63 bar
180 ° C
-20 ° C
GEMÜ 741
741
Clamp; Spigot
Pneumatic
1.4404, investment casting
63 bar
180 ° C
-20 ° C
1 2 3

Steam sterilization

Steam sterilization
The company Holzner plans and constructs steam sterilizers for the medical technology sector (in accordance with DIN285), in which micro-organisms are deactivated or removed due to the combined effect of steam and pressure. GEMÜ seat valves and ball valves are applied.
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