Borosilicate 3.3 Water Aspirator Pump with Non-Return Valve

Water aspirator pump in LBG 3.3 borosilicate glass for vacuum generation via Venturi effect. Connects directly to the laboratory water supply — no moving parts, no electrical maintenance.

Specifications

• Material: LBG 3.3 borosilicate glass
• Non-return valve: Integrated — prevents water backflow into the system
• Operating principle: Venturi effect
• Chemical resistance: Organic solvents, dilute acids, bases

Applications

Vacuum filtration with Büchner funnel, reduced-pressure distillation, solvent degassing and any setup requiring moderate vacuum without an electric pump.

Standard in organic chemistry, pharmaceutical, quality control and teaching laboratories. Where diaphragm pump vacuum is excessive or unavailable, the water aspirator is the practical solution.

Why the Non-Return Valve Matters

Without a non-return valve, a drop in mains pressure causes water to backflow and contaminate the system or sample. The integrated valve blocks that path — basic protection that on many aspirators without one must be added separately.

Technical Data

• Material: LBG 3.3 borosilicate glass
• Non-return valve: Yes, integrated
• Connection: Standard laboratory water supply fitting