Solvent Delivery Cap Kit, Port Cap for GL45 Media Bottles, with air valve and fittings

Safe and Secure Solvent Delivery: GL38 safety port cap bundle includes built-in check valve, plugs and 1/8" OD adapters

We designed these convenient port cap kits with either 2, 3 or 4 ports, a built-in one-way air valve, plus all required plugs and adapters to get started.

Volatile organic solvents are essential for many lab instruments, including HPLC, LC-MS, FPLC, and SFC. However, their use poses significant health and safety risks. Our Solvent Extraction and Delivery Caps provide a dynamic, closed-system solution to safely manage these chemicals. Choose adapters based on your preferred tubing size. A set of plugs in included in our kits to maintain a closed system when holes are not in use.

Specifications:

• fits glass solvent bottles with a GL-38 (38mm) threaded closure
• Choose number of Type A (1/4-28 UNF) female threaded ports
• PTFE insert for maximum chemical compatibility
• Polypropylene outer spin collar prevents tubing from tangling
• All fittings included with cap bundles are sized for 1/8" OD tubing; other size tubing adapters can be ordered separately.
• includes built-in one-way PEEK & SS316 check valve to reduce solvent evaporation and prevent implosion (three elastomer seal options)

Port Caps for bottles with a GL-38 glass thread type

The GL38 glass thread is commonly used for 4-liter glass solvent bottles from most chemical suppliers and is valued for its secure fit with airtight safety caps, ensuring the safe storage of volatile chemicals. While the GL38 thread technically features a 38-430 thread finish, its slightly different height makes it incompatible with the 38-430 threads on plastic bottles. Specifically designed for glass containers, GL38 threads are a trusted choice for solvents, reagents, and other chemicals in both laboratory and industrial applications.

Our port caps are designed for "active" systems that continuously pump solvents. They offer a secure and effective way to extract and deliver pure reagents and solvents from their reservoirs to your instrument. Balanced to control airflow with effective mitigation of both evaporation and fumes, protecting lab personnel and preventing the loss of expensive reagents. Upgrade your lab's safety and efficiency with our closed-system solution for solvent handling.

Built-in air valve for safety and efficiency

This Port Cap includes built-in one-way PEEK & SS316 check valve to reduce solvent evaporation. Choose from three elastomer seal options depending on your solvent. Clean air enters through one-way check valve to prevent implosion during the solvent delivery process, but solvent cannot evaporate out of the closed solvent feed system.

A = EXCELLENT
B = GOOD
C = FAIR TO POOR
D = NOT RECOMMENDED

Note on chemical compatibility: This information has been compiled from multiple sources and is intended as a general reference only. It is the responsibility of the user to verify the suitability of materials and solvents for their specific application. Data assumes room temperature use. 50μm Polyethylene particulate filters have been color-coded to denote the valve seal material. Filters are not intended for submersion in solvent.

Diagram of a solvent delivery cap (right)

• Solvent is fed to the laboratory instrument through tubing
• Tubing adapter fitting securely attaches the tube to the cap and container
• Particulate filter, color-coded to indicate the inner seal color and threaded for easy replacement
• One-way PEEK and 316 Stainless Steel check valve reduces solvent evaporation, with three elastomer seal options for various compatibility options
• Chemically-resistant PTFE insert is exposed to contents and ensures compatibility with a wide range of lab solvents
• Polypropylene spin collar is not exposed to contents. It rotates independently, protecting tubing from twisting or damage when cap is unscrewed
• Clean air enters through one-way check valve to displace solvent as it flows into HPLC or LC-MS machine

Note on grounding containers: For labs which do not need to use groundable safety containers, we offer these port caps to adapt to standard drum and pail closures, as well as Nalgene® 83B, 53B, and 100-415 carboys. PLEASE NOTE THAT IT IS NOT POSSIBLE TO GROUND DRUM, PAIL, GLASS BOTTLE AND CARBOY (NON-JUSTRITE®) CONTAINERS; THIS MAY RESULT IN A SAFETY HAZARD WITH FLAMMABLE SOLVENTS.

PROP 65 WARNING: This product can expose you to chemicals including Tetrafluoroethylene PTFE, which are known to the State of California to cause cancer.