United Scientific FLTKIT Vacuum Filtering Kit 500mL Flask with Pump

Description

Product Overview

The United Scientific FLTKIT Vacuum Filtering Kit is engineered to meet the demanding needs of modern laboratory environments. At its core is a 500 mL borosilicate glass filtering flask that offers excellent chemical resistance and thermal stability, allowing users to work with a wide range of solvents and reagents without fear of breakage. The flask’s wide mouth design simplifies the insertion of the 90 mm porcelain Buchner funnel, which features a fine mesh support that holds filter paper securely while permitting rapid liquid flow. Complementing these glass components is a hand‑operated vacuum pump equipped with a clear pressure gauge, delivering consistent suction up to 30 in Hg, which accelerates filtration while preserving sample integrity. The included rubber tubing connects the pump to the flask with a leak‑free seal, and the custom‑molded rubber stopper ensures airtight closure during operation. All parts are designed for easy disassembly and cleaning, reducing downtime between experiments.

The kit’s components are fabricated from laboratory‑grade materials that meet ASTM and USP standards, guaranteeing that no leaching or contamination occurs during critical procedures. The glass flask is tempered to resist thermal shock, allowing it to be heated or cooled rapidly without cracking, which is essential for processes such as recrystallization or precipitation. The Buchner funnel’s porcelain body provides a smooth, non‑porous surface that resists scratching, extending the lifespan of the funnel even after repeated use. The vacuum pump’s ergonomic handle reduces hand fatigue, and its built‑in gauge enables precise control of suction pressure, giving researchers the ability to fine‑tune filtration rates for delicate samples. Safety is further enhanced by the inclusion of a pressure‑relief valve that automatically releases excess vacuum, preventing damage to the flask or loss of sample.

The United Scientific FLTKIT is packaged in a compact box measuring 11.14 × 9.49 × 6.93 inches and weighing only 2.65 lb, making it easy to transport between workstations or to field sites. The filtering flask holds exactly 500 mL (≈ 16.9 fl oz) of liquid, a volume that balances capacity with manageable weight for manual handling. The Buchner funnel’s 90 mm diameter matches standard filter paper sizes, and the kit includes a pack of 100 pre‑cut 90 mm filter papers to ensure immediate operation. The rubber tubing is 1 m long, providing sufficient reach for most bench‑top setups, while the stopper is sized to fit the flask’s opening tightly, creating a reliable vacuum seal. All components are clearly labeled, and the included instruction manual offers step‑by‑step guidance for first‑time users.

In practical use, the FLTKIT delivers filtration times up to 50 % faster than gravity‑only methods, while maintaining a filtration efficiency of greater than 99 % for particles down to 0.45 µm. The consistent vacuum pressure eliminates channeling, ensuring uniform flow across the filter surface and producing clear filtrates ideal for downstream analysis such as HPLC, spectrophotometry, or microbiological testing. The system’s versatility allows it to handle a variety of sample types, from aqueous solutions and organic solvents to viscous suspensions, making it a valuable tool for chemistry, biochemistry, environmental monitoring, and quality‑control laboratories. Users consistently report reduced reagent waste and improved reproducibility, translating into cost savings and higher confidence in experimental results.

Feedback from long‑term users highlights the kit’s reliability and ease of use, noting that the robust construction withstands daily laboratory traffic while maintaining performance. Many laboratories appreciate the all‑in‑one nature of the kit, which eliminates the need to source separate components and simplifies inventory management. The clear gauge and ergonomic pump design are frequently cited as features that enhance user comfort and precision during extended filtration sessions.

Usage

The FLTKIT is ideally suited for routine laboratory filtration tasks such as removing precipitates, clarifying reaction mixtures, or preparing samples for analytical instrumentation. To begin, the user places the filter paper inside the Buchner funnel, secures the funnel onto the flask, connects the rubber tubing to the pump, and activates the vacuum. The rapid suction draws liquid through the filter paper, leaving solids behind in the funnel, while the clear filtrate collects in the flask for immediate use or transfer. This straightforward workflow minimizes handling steps, reduces the risk of contamination, and accelerates experimental timelines.

In teaching laboratories, the kit provides a hands‑on demonstration of vacuum filtration principles, allowing students to observe the effect of pressure differentials on liquid flow. The clear gauge on the pump helps illustrate how suction can be quantified and adjusted, reinforcing core concepts in fluid dynamics and separation techniques. For field‑based environmental testing, the portable nature of the kit enables on‑site sample preparation, such as filtering water samples for microbial analysis or extracting contaminants from soil suspensions, without the need for bulky equipment.

Why Choose Us

United Scientific has been a trusted supplier of laboratory equipment for over three decades, building a reputation for durability, precision, and customer‑focused innovation. Each FLTKIT component undergoes rigorous quality‑control inspections, including visual inspection for defects, pressure testing of the vacuum pump, and verification of flask dimensions against industry standards. This commitment to quality ensures that the kit performs reliably day after day, even under demanding laboratory conditions.

Customers benefit from a comprehensive after‑sales service that includes a one‑year limited warranty covering manufacturing defects, as well as responsive technical support staffed by experienced scientists. Should any part require replacement or clarification, the support team provides prompt assistance and ships replacement components at no additional cost. This level of service underscores United Scientific’s dedication to helping researchers maintain uninterrupted workflow and achieve accurate results.

In addition to performance, United Scientific emphasizes sustainability by selecting recyclable materials for packaging and encouraging proper disposal of used filter papers. The glass and porcelain components are reusable for many years, reducing waste compared to disposable alternatives. By choosing the FLTKIT, laboratories not only gain a high‑quality filtration solution but also contribute to environmentally responsible laboratory practices.

Key Features

• Complete 500 mL filtration system in one package, eliminating the need to source individual components.
• Durable borosilicate glass flask and porcelain Buchner funnel resist chemicals and thermal shock for long‑term use.
• Hand‑operated vacuum pump with built‑in gauge delivers consistent suction up to 30 in Hg, speeding up filtrations.
• Includes 100 pre‑cut 90 mm filter papers, rubber tubing, custom stopper, and clear instruction manual for immediate setup.
• United Scientific’s one‑year warranty and expert technical support ensure reliable performance and peace of mind.

FAQ

What types of solvents can I use with the FLTKIT?

The glass flask and porcelain funnel are chemically resistant to most common laboratory solvents, including water, ethanol, methanol, acetone, and dilute acids. For highly corrosive or aggressive solvents, consult the manufacturer’s compatibility chart, but the borosilicate glass is designed to withstand a wide pH range without degradation.

How do I clean and maintain the glass flask and Buchner funnel?

After each use, disassemble the components and rinse them with deionized water. For stubborn residues, soak the flask and funnel in a mild detergent solution, then scrub gently with a non‑abrasive brush. Rinse thoroughly and allow to air‑dry. Avoid using harsh acids or bases that could etch the glass or porcelain surfaces.

Can the vacuum pump be used with other filtration setups?

Yes, the hand‑operated pump is compatible with any standard laboratory vacuum apparatus that uses rubber tubing and a compatible stopper. Its gauge provides universal pressure readout, making it suitable for a variety of filtration assemblies beyond the FLTKIT configuration.

What is the recommended filter paper grade for fine particles?

For particles down to 0.45 µm, the supplied 90 mm filter papers (grade 1 µm) are appropriate. If finer filtration is required, users can substitute higher‑grade filter papers such as 0.2 µm or 0.1 µm, provided they fit the Buchner funnel dimensions.

Is a replacement pump available if the original fails?

United Scientific offers replacement vacuum pumps that match the original specifications. Customers can request a replacement through the technical support line, and the new pump will be shipped at no additional cost within the warranty period. After the warranty expires, replacement parts are still available for purchase.

How does the kit support sustainable laboratory practices?

The FLTKIT’s reusable glass and porcelain components reduce the need for disposable filtration devices, and the packaging is made from recyclable cardboard. By reusing the same filter papers when appropriate and following proper disposal guidelines, laboratories can minimize waste while maintaining high‑quality filtration performance.

Overall, the United Scientific FLTKIT Vacuum Filtering Kit delivers a reliable, efficient, and environmentally conscious solution for a wide range of laboratory filtration needs.