Kongskilde TRL 20 Instrucciones De Funcionamiento página 23

Several rotary valves on one pipe line.
Airflow passing a rotary valve in a pipe line does not
reduce capacity. Passing material through many
rotary valves in the same pipe line reduce capacity
considerably.
Therefore max. 3 rotary valves in line are
recommended. With more than 3 rotary valves, a "by
pass" can be made.
General principles for
installation and use of pipes
and bends
Distance between bends.
There should be a minimum distance of 2 m
(6.6 ft) between any flow direction change, i.e.
between any bends. With larger TRL blowers moving
higher capacities, longer distances are even better.
This does not apply if only air is blown through the
system.
Min. 2 m (6.6 ft)
Installation of telescopes.
Always ensure that telescopes are installed so that the
sharp edge points in the flow direction - not against.
If telescopes are installed in the wrong way, damage
to the material may occur. When conveying e.g.
paper waste, a reverse telescope will create plugging
problems.
OK160 Pipe
Flow direction
OK160 Telescop
Wrong
Right
Installation of bends.
Do not put 2 bends back to back, as this will cause
damage to the material and there will be a loss of
capacity.
Right
Wrong
It is recommended to use a heavier 1 m (3.3 ft) pipe
(OKR/OKD) following each bend to compensate for
wear.
1 m (3.3 ft)
Wrong
23