Instruction manual

Avoiding Damage From Allied Remote Chemical Delivery Systems

PELLERIN MILNOR CORPORATION

Chemical products commonly found in the laundry industry, when used in established dosages

and proper operating parameters, under the auspices of an experienced chemical specialist, should

produce satisfactory results, with no consequential detrimental effects. The industry has published

standards in Riggs and Sherrill, “Textile Laundering Technology”. However, the stainless steel

can be damaged and even destroyed by abnormal contact with chlorine bleach, hydrofluosilicic

acid and other commonly used chemicals, as will occur if chemicals are unintentionally leaked

into the machine, particularly when it is no longer in use and especially when machine surfaces

are dry.

Some chemical systems have been found to permit chemicals to dribble from the supply lines, or

worse, to siphon from the supply tank into the machine, during operation and long after the

system is shut down—as after working hours and during weekends. If this occurs, deterioration

(rusting) of the stainless steel and damage to any textiles therein will inevitably result. If this

condition goes undetected, machine damage is likely to be catastrophic. No machine is

immune to such damage.

CAUTION 1 : Equipment and Textile Damage Hazards

—Chemicals leaked into the

machine, particularly when it is idle can destroy machine components and textiles left in the

machine. Pellerin Milnor Corporation accepts absolutely no responsibility for damage to its

equipment or to textiles therein from abnormal contact with chemicals.

• Ensure that the chemical system prevents unintentional release of chemicals.

• Inspect regularly for proper operation and evidence of damage.

Requirements for Chemical S

stems Used With Milnor Machines

It is the responsibility of the chemical system manufacturer and supplier to ensure that their

system is safe for personnel and equipment. Some important points are described below.

2.1.

Ensure the System Cannot Siphon.

—The supply system must be designed to

counteract any siphoning that could occur as a result of having a sealed supply line between the

bottom of the chemical tank and the internal machine connection at the drain trough. As shown in

the Figure 2 examples, if the pump (P) and/or the valving does not provide positive closure and

there is no vacuum breaker protection, siphoning is likely to occur. In each of the Figure 2

illustrations, the volume of chemical in the tank above the siphon level (S), and indicated by

shading, will flow into the machine.