Laminar wall penstocks can be used as shutoff and control penstock. Square or rectangular in a compact design. Resilient seated with four-side sealing, constructed of stainless steel, for wall mounting.

Penstocks are mainly used as shutoff valves for water treatment channels, power stations, dams, etc. Laminar can offer penstocks  with a square, rectangular or round port.

The basic design consists of a steel frame, a sliding steel gate, a sealing system sliding inside the frame, a stem, and the actuation system. Standard models are manufactured in steel or stainless steel, providing a high corrosion resistance suitable for a wide range of applications.

Laminar offers penstocks that can be fitted into walls (to close circular, square or rectangular ports) or into channels (with frame enclosed in the concrete).


Raw Water | Wastewater


Wastewater applications | Dams | Water treatment plants | Storm water retention basins | Flood protection

  • Compact design for wall mounting by anchors
  • Can be used in intermediate positions as control valve
  • Sliding system between gate and frame
  • Corrosive resistant, parts dip pickled and passivated
  • Rotatable stem nut
  • Integrated and contained profiled seal
  • Seal between valve and wall mounted to the valve and ready for operation
  • Rising/Non-rising stem
  • Sealing system:

  • Four side sealing

    • Tightness: max. 1% (on seating pressure) and max. 5% (off seating pressure) of leakage rate

    • Square opening for wall mounting with anchors

  • Various mode of operations: hand wheel, gear box, electrical actuator or pneumatic cylinder