RPC VARIBOX FC Installation guide

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This FAQ contains frequently asked questions about the CDS extractor tube
that is installed in the VARIBOX FC. This FAQ is divided into four parts: the
characteristics of the CDS extractor tube, the availability, the CDS counter
coupler and the connection of the CDS counter coupler to the CDS extractor
tube.
A CDS extractor tube is a tube in the VARIBOX FC that reaches the lowest
point of the inner container. A counter coupler can be connected to the top of
the CDS extractor tube. The CDS extractor tube is an option on the VARIBOX
FC that allows product to be pumped out of the VARIBOX without opening the
VARIBOX FC. This makes safe working with chemicals possible, and fumes and
product cannot be escape from the VARIBOX FC.
A leak-tight connection is established when connecting the CDS counter
coupler. At the same time, the CDS extractor tube and the CDS counter coupler
are opened. Product can now flow, and air can enter. Fumes and product
cannot escape.
To connect the VARIBOX FC with a CDS extractor tube, a CDS counter coupler
with a hose attached to an installation will be used. Both the CDS extractor
tube and the CDS counter coupler automatically close when disconnecting. By
this way you cannot forget to close the VARIBOX FC and no product can flow
back from the pump installation.
No, the VARIBOX FC with a CDS extractor tube forms a closed system. When
disconnecting, the CDS counter coupler as well as the CDS extractor tube
automatically close. After disconnection there can be still some moist on the
CDS extractor tube and CDS counter coupler, avoid contact with these parts.
No, the CDS extractor tube has an automatic aeration. This is advantageous
because the screwcap remains closed and fumes cannot escape.
Normally it will take approximately 50 minutes to empty a VARIBOX FC with
1000 litres of product with a CDS extractor tube. This depends on the viscosity
of the product and the capacity of the pump installation.

The CDS extractor tube doesn’t have a foot valve. When the VARIBOX FC with
a CDS extractor tube is not used for a longer period, the product level in the
CDS extractor tube can gradually drop. When again switching on the pump
there is a change that air will be pumped first.
To ensure the safety of the VARIBOX FC with CDS extractor tube, it is
recommended to replace the CDS extractor tube every year. Inspect the CDS
extractor tube regularly for possible damage and replace if necessary.
Just a little bit of product remains in de VARIBOX FC, because the CDS
extractor tube is placed in the lowest point of the inner container. Because of
the low residue, handling and transporting VARIBOX FC is much safer. After
emptying, approximately 0.1 litres remain in the VARIBOX FC. About 0.4 litres
remain in the CDS extractor tube itself. These quantities are based on water
and will vary per chemical product.
The CDS extractor tube has been developed for use with chemicals. The CDS
extractor tube is resistant to most chemicals, but it is very important to choose
the correct version. If you have specific questions about chemical resistance,
please feel free to contact us.
There are two versions CDS extractor tube: EPDM for the VARIBOX FC in
EPDM version and Aflas for the VARIBOX FC in Viton version. The EPDM
version has a stainless-steel spring. The Aflas (VARIBOX FC Viton) version has
a Hastelloy spring. Tube and housing are made of polyethylene. If you have
specific questions about chemical resistance, contact us.
The CDS extractor tube and the CDS counter coupler are available at RPC
Promens. You can use the VARIBOX order form. Please contact our customer
service for this form. You can mail to [e-mail] or you can contact
us by telephone on the number [phone]. Besides that, you also can
order the CDS extractor tube and CDS counter coupler at TriSure, see:
https://www.tri-sure.com/

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.

For the latest information about the VARIBOX FC and for service and support,
please visit www.varibox-ibc.com. You will also find instructional videos about
using the VARIBOX FC. A quick way to access the website is to scan the QR
code below. This code is also present at the VARIBOX FC.
For spare parts you can use the VARIBOX FC Service parts lists with all the
correct references. To obtain this list, or for warranty related questions or for
more information about this or more RPC Promens products, feel free to
contact us:
RPC Promens Deventer
Customer Service
Tel.: [phone]
[e-mail]
If the product appears to be damaged or does not function properly, please
follow the advice in this booklet and the online resources.
If the product still does not function, contact RPC Promens Customer Service
for instructions how to obtain warranty