Shut-off device

Scheme of a ball valve

Scheme of a straight seat valve with a conical sealing body

Diagram of a diaphragm valve

A shut-off device is a component that is used to stop or allow the volume flow in a pipeline . The connection dimension of the shut-off device is given by the nominal width (NW) in mm and the nominal pressure (ND) in bar . It can be designed as a valve , slide , flap or tap . For example:

• Gate valve
  • Flat slide
  • Piston valve
• Butterfly valves
  • Ring flap
• Stopcocks
  • Three-way rotary valve
  • Ball valve
• Valves
  • Angle valve
  • Straight seat valve
  • Diaphragm valve

literature

• Ralph-Harry Klaer (Ed.): Practical manual for industrial fittings 2003. Vulkan Verlag GmbH, Essen 2003, ISBN 3-8027-2729-0 .
• Bernd Thier: Industrial valves, components for pipeline technology. 5th edition, Vulkan Verlag GmbH, Essen 1997, ISBN 3-8027-2712-6 .
• Herbert Wiemann, Ulrich Eberle, Alfred Soherr: Metallfachkunde 5th heating and ventilation technology, 2nd edition, Springer Fachmedien, Wiesbaden 1992, ISBN 978-3-519-16709-9 .

Web links

• Shut-off devices (accessed on March 31, 2017)
• Shut-off devices for the suction line (accessed on March 31, 2017)
• Shut-off device EP 0424360 A2 (accessed on March 31, 2017)