Lubrication Unit; Pressure Maintenance Valve; Cooling Pipes - Coltri Sub MCH 13/ET Compact Instruction Manual

2.2.4 2.2.4 2.2.4 2.2.4 2.2.4
Lubricating unit Lubricating unit Lubricating unit
Lubricating unit Lubricating unit
11
2.2.5 2.2.5

Pressure maintenance valve

Pressure maintenance valve Pressure maintenance valve Pressure maintenance valve Pressure maintenance valve
2.2.5 2.2.5 2.2.5
This valve is fitted after the final filter. Just a few seconds after the compressor has been started up, it
keeps the pressure of the entire system at 100 ± 20 bar (see exploded view Chapter 14), for the purpose
of eliminating as much water as possible from the air. It also acts as a non-return valve.
Cooling pipes (Fig. 12) Cooling pipes (Fig. 12) Cooling pipes (Fig. 12) Cooling pipes (Fig. 12) Cooling pipes (Fig. 12)
2.2.6 2.2.6 2.2.6
2.2.6 2.2.6
12
Lubrication is carried out by means of a tang
screwed into the end part of the connecting rods of
the 2 nd and 3
rd
The 3 high pressure stage is lubricated by oil
vapours.
The cooling pipes between the 1
between the 2
are made of stainless steel, like those for the
passage of air between the separator and the filter.
14
rd stages (Fig. 11).
st
and 2
nd and 3 rd stage and after the 3
Technical description
nd
stage,
rd stage