User manual
15
4 Distributor Letter
Chemical System Responsibility
Disclaimer
The following policy should be considered and understood as a warranty/disclaimer to customers operating textile
care installations where liquid supply (chemical) systems use or may use peristaltic pumps to inject supplies into
equipment.
To Whom it May Concern:
We, the undersigned, accept no responsibility for loss or damage when, during periods of non-use, concentrated
chemicals leak, spray or "dribble" onto any part of our machines or their contents.
It is well known that many pumped liquid chemical systems tend to permit concentrated chemicals to dribble out of
the injection tubes when the system has not been used for relatively long periods of time – as after working hours
and during weekends. This puts highly concentrated corrosive chemicals in direct contact with dry stainless steel sur-
faces and often directly on any textiles left in the machine. Chemical deterioration (rusting) of the stainless steel and
damage to the textiles is the inevitable result.
It is absolutely useless to flush the affected sites after each injection because the
harmful dribble always occurs
later
– after the machine is no longer in use. One seemingly foolproof solution for "dribbling chemicals" (which we
highly recommend but obviously cannot guarantee) is to locate the chemical tanks and pumps well below the injec-
tion point on the machine (so the contents of the injection tube(s) cannot siphon into the machine) and to completely
purge the just-used chemical injection tube(s), or manifold, with
fresh water after every injection
so that only fresh
water (which cannot cause a problem) can dribble out. Naturally, this – or any other solution – is the sole responsibil-
ity of the pump and/or chemical supplier (not the machine manufacturer).
Additionally, external chemical leakage is dangerous to personal health and safety
, and will also cause severe
damage to machines and/or their surroundings. The installer and/or user of the chemical injection system must make
sure there are no external chemical leaks and that excessive pressure can never build up in any chemical delivery
tube,
because excessive pressure can burst the tube, or disconnect it from the machine, and spray danger-
ous concentrated chemicals about the premises
.
The machinery manufacturer is not, and cannot be, responsible for compliance with the above.
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