Pellerin Milnor Corporation

Technical Knowledge Base

Chemicals

Information concerning chemicals in MILNOR machines.
This node solution contains a document signed by MILNOR, Braun, American Laundry, Ellis, Wascator, Washex, and Unimac which states that these companies 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.
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--such as after working hours and during weekends. This puts highly concentrated corrosive chemicals in direct contact with dry stainless steel surfaces 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 fool-proof solution for "dribbling chemicals" (which we highly recommend but obviously cannot guarantee) is to locate the chemical tanks and pumps well below the injection 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 responsibility 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 that 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 dangerous concentrated chemicals about the premises.

The machinery manufacturer is not, and cannot be, responsible for compliance with the above.

Signed by:

James W. Pellerin - Pellerin MILNOR Corporation
William Nehren - Washex Machinery Co.
Neil Milch - Wascomat
Bengt-Ake Bruce - Unimac Company, Inc.
Daniel Hertig - G. A. Braun, Inc.
Robert Fesmire - Ellis Corporation
Timothy Nymberg - American Laundry Machinery, Inc.
Last updated: 08/26/2008 / Node ID: 132 / Key Chain: 12.1.13.84.