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Lab Filtration Products

Glass Solvent Vacuum Filters

Glass Solvent Vacuum Filters are designed for efficient particulate removal from aqueous, organic, and corrosive liquids in analytical and microbiological workflows. The system uses a high-quality extra hard glass funnel with a solid glass frit and stainless steel clamp, enabling vacuum-assisted filtration that reduces processing time compared to gravity flow. It is recommended for HPLC solvent filtration, where outgassing helps maintain clean mobile phases and prevents blockage in the liquid flow path. The crystal-clear, spark-resistant glass ensures visual monitoring of filtration progress and sample clarity.

Vacuum-assisted filtration reduces processing time compared to gravity flow, improving throughput in high-volume labs
Solid glass frit provides consistent pore retention and low extractables, suitable for HPLC mobile phase preparation
Extra hard glass construction resists thermal shock and mechanical stress during repeated use
Crystal-clear glass allows real-time visual monitoring of filtration progress and particulate collection

Key Benefits

What This Product Gives You

Vacuum-assisted filtration reduces processing time compared to gravity flow, improving throughput in high-volume labs
Solid glass frit provides consistent pore retention and low extractables, suitable for HPLC mobile phase preparation
Extra hard glass construction resists thermal shock and mechanical stress during repeated use
Crystal-clear glass allows real-time visual monitoring of filtration progress and particulate collection
Stainless steel clamp ensures a secure, leak-proof seal under vacuum, maintaining system integrity
Outgassing function helps remove dissolved gases from solvents, reducing bubbles in HPLC systems

High-quality extra hard glass construction with even thickness and spark resistance
Solid glass frit for consistent particle retention and low extractables
Stainless steel clamp for secure, leak-proof vacuum sealing
Available in three configurations: GVF30010, GVF30020, GVF50020 with varying funnel and collection flask sizes
Designed for vacuum filtration of aqueous, organic, and corrosive liquids
Outgassing function helps degas solvents to prevent bubble formation in HPLC systems
Crystal-clear glass allows visual inspection of filtration and particulate collection

Where It Is Used

Applications And Buyers

Application Scenarios

Filtering HPLC mobile phases to remove particulates and prevent column blockage
Preparing solvent batches for analytical instruments where low extractables are critical
Conducting microbiological tests requiring particulate collection from liquid suspensions
Performing water quality analysis with high-purity solvents and sensitive detection systems
Processing corrosive or aggressive organic solvents in pharmaceutical and chemical laboratories
Supporting biochemical sanitation testing with reliable, reusable filtration hardware

Who It Is For

Pharmaceutical and biotech laboratories requiring clean solvents for HPLC and GC analysis
Environmental testing labs handling water and soil extracts with particulate loads
Food and beverage quality control labs filtering samples for residue and contaminant analysis
Research laboratories conducting chemistry and biochemistry experiments with solvent purity requirements
Lab managers seeking reusable, durable filtration systems with minimal carry-over risk

Problems It Solves

HPLC columns blocking due to particulates in unfiltered mobile phases
Ghost peaks or baseline noise caused by extractables from low-grade filtration materials
Slow filtration rates when relying on gravity flow for large sample volumes
Leakage or seal failure during vacuum filtration due to poor clamp or joint design
Inconsistent filtration performance from disposable or low-quality glass frits
Difficulty in monitoring filtration progress due to opaque or cloudy filtration media

Data

Specifications

Filter Type	Vacuum filtration with solid glass frit
Funnel Volume	300 ml (GVF30010, GVF30020), 500 ml (GVF50020)
Collection Flask Volume	1000 ml (GVF30010), 2000 ml (GVF30020, GVF50020)
Material	Extra hard glass, stainless steel clamp
Frit Type	Solid glass frit
Sealing	Stainless steel clamp with vacuum-compatible seal
Operating Pressure	Vacuum-assisted, leak-proof under standard lab vacuum
Dimensions	30cm x 30cm x 25cm (packaging)
Packing	1 set per pack

Materials

Extra hard glass for funnel and collection flask
Solid glass frit for filtration medium
Stainless steel clamp for vacuum sealing

Customization Options

Available in three configurations: GVF30010, GVF30020, GVF50020
OEM private-label packaging available through the Microlab OEM division
Custom part numbering and branding possible for lab distributors and filter brands

How It Is Made

Manufacturing And Quality Control

Manufacturing Process

Moulding and shaping of extra hard glass components
Precision fabrication of solid glass frit for consistent pore retention
Assembly of funnel, collection flask, and frit with stainless steel clamp
Leak-proof integrity testing under vacuum
Final inspection for clarity, thickness, and structural soundness
Packing in 30cm x 30cm x 25cm box for safe transport

Quality Control

Visual inspection of glass for cracks, bubbles, or uneven thickness
Leak test under vacuum to ensure seal integrity
Frit pore consistency verified through flow and retention testing
Final check of component alignment and clamp function
Verification that all parts are included per the part number configuration

Comparison

Compared With The Alternatives

Versus Plastic vacuum filtration systems

Glass construction avoids extractables and chemical interaction with aggressive solvents, critical for HPLC solvent prep

Versus Disposable membrane vacuum filters

Reusable glass system reduces long-term consumable cost and supports sustainable lab practices

Versus Glass frits with rubber seals

Stainless steel clamp provides a more durable and chemically inert seal than rubber, which can degrade under vacuum or with solvents

Versus Gravity-only filtration funnels

Vacuum-assisted filtration reduces processing time significantly, especially for viscous or high-particulate samples

Use Guide

How To Use It

Assemble the funnel with the solid glass frit and place it on the collection flask
Secure the stainless steel clamp tightly to ensure a leak-proof seal
Connect the vacuum source to the side arm of the flask and apply vacuum
Pour the liquid into the funnel and allow it to filter under vacuum
Monitor the process visually through the crystal-clear glass to detect clogging or particulate buildup
After filtration, disconnect the vacuum and remove the funnel carefully to avoid breakage
Clean the glass components with appropriate solvents and dry before reuse

Photos

Product Gallery

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Vacuum Filtration Setup Guide

FAQ

Questions Buyers Ask

What is the purpose of the solid glass frit?

The solid glass frit provides consistent particle retention and low extractables, making it suitable for HPLC solvent filtration and sensitive analytical work.

Can this filter be used with aggressive organic solvents?

Yes. The extra hard glass and stainless steel clamp are resistant to most organic solvents and corrosive liquids.

Is the glass frit replaceable?

No. The solid glass frit is permanently integrated into the funnel and not designed for replacement.

What is the difference between GVF30010, GVF30020, and GVF50020?

GVF30010 has a 300 ml funnel and 1000 ml flask. GVF30020 and GVF50020 both have 2000 ml flasks, but GVF30020 uses a 300 ml funnel and GVF50020 uses a 500 ml funnel.

How do I clean the filter after use?

Rinse with appropriate solvents, then clean with detergent and water. Dry thoroughly before storage to prevent residue buildup.

Can I use this for sterile filtration?

This system is not designed for sterile filtration. It is intended for particulate removal and solvent preparation, not microbial sterilization.