L&W Compressors LW 100 B, Operating Instructions Manual

Page: 58 / 154

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LW 100 Series
Version: 29.03.2016
M A I N T E N A N C E A N D S E R V I C E
Valve heads and valves
Inlet and outlet valves of the specific compressor stages are
located between valve head and cylinder. Inlet valves open
while piston downstroke; outlet valves open while upstroke
or compression stroke.
Valves are subject to normal wear and tear and have to be
replaced at specified intervals (depending on specific
operating conditions). Dismount valve heads to change
valves. All 3 valves are combined valves; inlet and outlet
valves are a single unit.
Pistons and Cylinders
To guarantee highest economic efficiency and long lifetime of
the unit, all compression cylinders of the LW 100 compressors
are equipped with hardened, separate cylinder sleeves. These
are plugged into the compressor housing and placed over the
valve heads screws or valves. Special o-rings prevent air and
oil loss.
All pistons are equipped with high quality steel piston rings.
This ensures high and constant air supply as well as long
service life even when often in use.
Cooling
The cooling pipes are made of non-corroding material and
provide excellent cooling for the air after each stage of
compression. The effective cooling system ensures that the air
entering the final filter and separator housing is as low as
possible. The air increases only 6° from inlet to outlet (at +20°
C ambient temperature). This low temperature increase
creates long filter times.
The free access to sufficient cooling air must be guaranteed.
Ensure the cooling pipes and the ribs on them are cleaned and
free of dirt/dust.
Cylinder sleeves
Component parts inlet and outlet valve
Free compression & guide piston 3rd
Stage