Wall penetrations are sealed circuits.
According to the application, there are different wall penetrations available.
Usual Ø 32 for 1" PE-pipe,
Ø 36 for 1" hose,
Ø 50 for 50 HT-pipes for the supply of potable water.
Cable for power supply of submersible pump and for measuring the water level Ø16 for the PE-pipe of the backwashing device.
A wall penetration consists of a 30 mm strong rubber sheet with 2 discs and screw connections made of stainless steel.