Penstocks

Penstocks (4 sided sealing, opening upstairs)

This penstock is sealing on all / 4 sides when the plate is closed.
Moreover the plate is lifting upstairs when the penstock is opening.

Penstocks (4 sided sealing, opening downstairs)

This penstock is sealing on all / 4 sides when the plate is closed.
Moreover the plate is lifting downstairs when the penstock is opening.

Penstocks (3 sided sealing, opening upstairs)

 This penstock is sealing on 3 sides when the plate is closed.
Moreover the plate is lifting upstairs when the penstock is opening.

Penstocks (3 sided sealing, opening downstairs)

This penstock is sealing on 3 sides when the plate is closed.
Moreover the plate is lifting downstairs when the penstock is opening.

Turning penstocks

These penstocks make a turning motion around an axis which is mounted on the structure. This axis can be places horizontal or vertical.