Trumpf LASERCELL 1005, Operator'S Manual

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B337EN02.DOC
Installation conditions TLC 1000 and TLC 1005 - Version 5
2-19
For ring circuits, it is absolutely necessary that a ball cock be
installed between all bifurcating stub cables, so that the pipes can
be shut down a section at a time.
Note
See "Central laser gas supply" for notes on installation and on
pressure and leak tests.
Cutting gas supply with cylinders or
bundles
•
Cutting gas supplies with pressure reducers for cylinders or
bundles is the easiest and most economical way of supplying
gas; handling requirements are greater, however, due to the
volume of consumption. 1 bundle contains 12 cylinders =
approx. 120 Nm
3
gas.
•
The gas flow is interrupted when changing cylinders or
bundles.
•
This method of supply is only suitable to a certain extent for N
2
high-pressure cutting.
•
Switching devices are required for uninterrupted operation with
cylinder or bundle banks and also for changing cylinders.
•
The switch-over is carried out manually or automatically
5
.
•
Cylinder or cylinder bundles are usually installed some
distance away from the laser machine. For this reason the use
of a tapping point pressure reducer in the vicinity of the laser
system is recommended.
O
2
Standard pressure
N
2
High pressure
Admission pressure
[bar]
0 - 200 0 - 200
Max. permissible back
pressure [bar]
25 40
Min. flowrate [Nm
3
/h]
30 60
Other requirements Suitable for oxygen;
oil-free and grease-free Oil and grease-free
Cutting gas supply – pressure control specification
Note
In all cases, a pressure monitor must be installed using the
specified pressure regulator on the supply unit. Pressure regulators
must be secured against the max. input pressure (inherently safe).
5
The use of a signaling unit is advisable for automatic changeover. Without
it, the battery system could be drained empty at both sides of the cylinder
or bundle battery without this being detected.
Cylinders or bundles
Cylinder or bundle battery
Specification pressure
control
Table 2-10