CAUTION
To reduce the risks associated with hot surfaces and hot exhaust gases:
• Do not touch the membrane contactor or liquid lines during operation or cleaning and drying.
Surfaces may be hot.
• Avoid close proximity to blower exhaust.
To reduce the risks associated with environmental contamination:
• Exhaust gas should be vented in a safe manner and according to local regulations.
To reduce the risks associated with damaging the membrane contactor:
•
Ensure membrane contactor is properly aligned with piping, and flanges are adequately
tightened during use and after cleaning. Always conduct system checks in accordance with
installation instructions and facility policies prior to operation.
•
Ensure proper draining and flushing of membrane contactor before maintenance, service, or
shipping of membrane contactors.
NOTICE
• To reduce membrane contactor or system damage:
•
Care must be taken not to drop, hit or impact the membrane contactor.
• If the membrane contactor is used with air sweep, then the temperature should not exceed 35°C
(95°F). For membrane contactors used with vacuum only this statement does not apply.
•
To avoid contamination of the process fluid, gloves are recommended when handling the
membrane contactors.
• All plastic port extensions should be supported to prevent bending of extensions under excessive
piping loads.
• 3M Liqui-Cel Membrane Contactor products should be stored dry and in a sealed plastic bag
or shrink wrap material to help prevent the introduction of contaminants into the membrane
contactor.
• 3M Liqui-Cel Membrane Contactor products should be stored in their original box, or other
opaque box, and should not be installed where they are exposed to direct sunlight.
• Store 3M Liqui-Cel Membrane Contactor products dry at temperatures < 50 °C (122 °F), but
preferably at lower temperature such as <35 °C (95 °F), to not risk reduced lifetime.
•
3M Liqui-Cel Membrane Contactor products should always be stored above freezing
temperatures, and if stored at low temperature, they should be allowed to equilibrate to room
temperature before use.
•
Do not use thread sealant to connect fittings to membrane contactor.
•
Use care if using a metal fitting to connect to a plastic connector on the membrane contactor.
•
Do not allow membrane contactors containing microporous hollow fiber membranes to come
into contact with surfactants, oil, or organic solvents, such as pure alcohols, glycol, acetone, etc.,
to reduce the risk of membrane wet out. 3M Liqui-Cel SP-Series Membrane Contactor products
containing polyolefin membrane are not subject to this restriction.
•
To protect the membrane contactors, prefiltration equipment should be inspected and
maintained in accordance to 3M Liqui-Cel Membrane Contactors Inlet Water & Sweep Gas
Operating Guidelines, in the Technical Resources section at 3M.com/Liqui-Cel.
• Suspended solids, biological contaminants, or the precipitation of soluble or insoluble salts on
the membrane surface may lead to membrane plugging.
•
Filtered, de-chlorinated, and deionized water is recommended for mixing cleaning solutions. If
a pH shift occurs in water containing sparingly soluble compounds of Ca, Mg, Fe, Al, and silica
(SiO₂) etc. precipitation from the solution could occur, blocking or damaging the membrane.
Ensure that your water is free of these compounds.
