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Shaft seal
leakage is the number one cause of pump downtime and maintenance. Shaft
seals wear faster when liquid, air and heat combine at the seal to cause
chemical reactions, like:
• Crystallization (e.g. isocyanates). Abrasive crystals cause premature
wear.
• Sticking (e.g. adhesives, epoxy resins, paints). Seal faces bond when pump
stops, and fails at startup.
• Varnishing (e.g. petroleum products). Layer builds up on seal faces
causing separation.
Typical Applications:
• Isocyanates
• Sodium Hydroxide
• Adhesives
• Epoxy Resins
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Shaft
seals can allow liquids and vapors out, causing hazardous exposure, and can
allow air in, causing unwanted chemical reactions. Traditional sealed pumps,
including flushing, quenching and barrier fluids, are subject to the same
failures as standard seals, plus failures of their associated equipment
(pumps, piping, filters and heat exchangers). When the costs of
environmental controls are considered, the dimensionally interchangeable
Universal Mag Drive Series is the most cost-effective alternative.
Typical Applications:
• Volatile Organic Chemicals
• Hazardous Chemicals
• LPG and Ammonia
• Reactive Chemicals
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Unplanned
downtime to fix a leaky seal is unacceptable in facilities with continuous
processes, like refineries, chemical plants and paper mills. Even when
pumping “safe” liquids, seals are subject to mechanical problems like loss
of compression, misalignment of pump and driver, improper seal installation,
shaft deflection causing off-center faces, suction lift (vacuum) causing
face separation, and many others. If you can’t afford pump downtime, the
Universal Mag Drive Series offers exceptional up-time reliability through
its robust, sealless design.
Typical Applications:
- Refineries
- Chemical and Polymer Plants
- Paper Mills
- Pipelines
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