It is important for safe use of the VARIBOX FC to use an EPDM CDS counter
coupler on an EPDM CDS extractor tube. And on a Aflas/Viton CDS extractor
pipe, only the Aflas/Viton CDS counter coupler must be used. The difference
between an EPDM or Aflas/Viton counter coupler is in the colours of both
counter couplers. The EPDM CDS counter coupler has a red core (dot in the
middle) and the Aflas/Viton version has a natural (white) core (dot in the
middle).
The CDS counter coupler can be damaged. For example, the part sliding over
the CDS extractor tube can be damaged, or the sealing surface may be
damaged. If so, the CDS counter coupler must be replaced. Besides that, the
CDS counter coupler can also be damaged due to chemical attack. Therefore, it
is important to regularly check the CDS counter coupler.
The expected lifetime of the CDS counter coupler is one year. Inspect the CDS
counter coupler regularly (i.e., annually or earlier if necessary) and replace if
necessary. The rate of chemical attack is highly dependent on the product, its
concentration and temperature.
The metal bracket secures the position of the CDS counter coupler on the CDS
extractor tube. If the metal bracket is not clipped underneath the CDS
extractor tube, air can enter the system which can lead to faults in the pumping
system.
Make sure that the handle of the CDS counter coupler is inclined upwards. Slide
the CDS counter coupler completely over the CDS extractor tube. Turn and clip
the metal bracket underneath the edge of the CDS extractor tube. Push the
handle of the CDS counter coupler downwards until it clicks in position. The
CDS extractor pipe is now connected. And the product can be pumped out.
No, pay attention to overpressure in the VARIBOX FC. There is a risk of leakage
when disconnecting in case of overpressure. When the VARIBOX FC is under
internal pressure, the pressure must be released first. This can be done by
switching on the pump or by opening the screwcap. Make sure to wear
personal protection.
The extractor hose must be flexible to avoid excessive force on the CDS
counter coupler. It is important that the hose is attached at 180 ° to the handle.
