Technical data

Compressed Air Applications Manual | Pipework design and installation Compressed Air Applications Manual | Pipework design and installation

Underground laying

BEKOFLOW

is resistant to corrosion

and can therefore also be laid under-

ground.

The trench should be about 1 m deep

and as narrow as possible. Stones and

other sharp objects have to be removed.

The bottom of the trench should be

covered with approx. 10 cm of sand or

other ﬁne-grained material. The ﬁll mate-

rial coming into contact with the piping

should be of the same kind as at the bot-

tom of the trench and should extend to at

least 10 cm above the top of the pipe.

Due to the risk of condensate formation

associated with underground piping there

should be a water separator installed at a

low point of the line.

Duct laying

When the pipes are laid in ducts that are

then ﬁlled with concrete, it must be en-

sured that the pipes are fully enclosed.

At the entry and exit points of the pipes,

provision should be made to protect the

pipes against damage.

Soil

min. 10 cm

Sand

min. 10 cm

min. 10 - 12 cm