2 | Product Description
8 | 44
Instruction Manual COBRA NC 0400 B WCV_EN_en
2.5.6
Nitrogen Panel
The nitrogen panel fitted to the base frame allows the supply of nitrogen to a number of different
points on the machine.
Each device consists of a solenoid valve to open or close the gas circuit, a pressure regulator and a
flow meter to adjust pressure and volume flow separately.
The following devices are available:
– The barrier gas system for sealing systems on motor side. This device is equipped with a flow
switch integrated to the flow meter to switch off the machine if the nitrogen volume flow drops
below the minimum set flow value.
– The dilution gas ballast prevents the formation of condensates or dilutes them, depending on the
application. The nitrogen is fed into the cylinder.
– The purge gas system fitted at the inlet flange allows to flush the machine after use or during
operation. The nitrogen is fed into the inlet flange.
2.5.7
Liquid Flushing Device
The liquid flushing device allows the machine to be flushed with the appropriate liquid according to
the process type. The system consists of a solenoid valve which enables to open and close the
flushing liquid circuit.
Furthermore, two level switches (LS1 and LS2) monitor the flushing liquid quantity.
Upper level switch (LS1
►
L
alarm
)
Early warning
Lower level switch (LS2
►
L
trip
)
Trip, the flushing must be stopped
