The walls usually consist of continuous trenches that are connected to a piping network into which oxidants can be injected into.
Pressure drop increases proportional to the frictional shear forces within the piping network.
Fan coil units may be connected to piping networks using various topology designs, such as "direct return", "reverse return", or "series decoupled".
In fluid flow, it is a common problem to calculate the pressure drop in an established piping network.
The piping networks are circular or rectangular.
A vacuum sewer system uses the differential pressure between atmospheric pressure and a partial vacuum maintained in the piping network and vacuum station collection vessel.
Reclaimed water is often distributed with a dual piping network that keeps reclaimed water pipes completely separate from potable water pipes.
A piping network, often laid in a stone-filled trench (see weeping tile), distributes the wastewater throughout the field with multiple drainage holes in the network.
Hydraulic calculation is the fire safety practice of calculating the flow of liquids through a medium (usually a piping network) to ensure that fires could be extinguished.
Flows through piping networks can be bidirectional, as in underground water distribution networks which have designed-in redundancy.