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• Suitable Filtration for microbiology test, Vacuum filtration, Air sampling and Suspended solid test • With vacuum regulator to adjust vacuum • Driven by Piston, without the need of lubricant, regular oil changes and maintenance • Equipped with Prote™ overflow protection which can prevent a large amount of liquid from being sucked into the pump (Excluding 800 and 810 models) • Equipped with filter cartridge in air inlet to filter particle and moisture to prolong the life of pump(as well as in air outlet for 430 and 600models) • Built-in thermal protection device to shut off the pump automatically when overheated and then resume working when the temperature cools down
• 100% oil-free transfer • Maintenance-free • Connection of pump heads in series for a higher vacuum, or in parallel for increased delivery • For use with rotary evaporators, gel dryers, vacuum and filtration ovens