Welcome to Shanghai HanKing Instrument & Equipment Co.,Ltd
Product Category
Reagent Waste Sealing Cap
Reagent Waste Sealing Cap

Solvent volatilization poses significant health risks. Volatile gases released in laboratories will contaminate the air, posing hazards increasing the risks to the laboratory and the surroundings.
The solvent and waste liquid sealing lid addresses the issue of solvent evaporation at its source, preventing harmful gases from escaping into the working environment and safeguarding the safety of laboratory personnel.
Sealed Sampling System
The top features a double-layer microporous filter membrane that prevents dust and tiny particles from the air from entering the solvent bottle. A carefully designed one-way air valve effectively inhibits solvent evaporation while ensuring smooth and reliable solvent withdrawal.
Product advantages:
√ No harmful gas emissions;
√ The liquid-contact parts are made of PTFE material, protecting the solvent from contamination.
√ Multi-colored tubing connectors for clear identification of different lines;
√ The bottle cap can be rotated freely, making it convenient to replace the solvent bottle.
√ No need to install a universal cover—saving costs and eliminating noise pollution!
√ Simple and elegant, enhancing space utilization efficiency.
Waste Liquid Centralized Collection System

Waste liquid bottles and buckets are typically placed beneath laboratory benches, while the universal fume hood has limited suction power and can only capture a small portion of the volatile gases in the immediate vicinity. As a result, volatile gases from waste liquids freely circulate throughout the lab, making them the number-one source of indoor air pollution.
The exhaust filter inside the waste liquid collection system features a high-efficiency activated carbon adsorbent, with microporous filtration membranes at both the top and bottom ends. This configuration can capture and filter up to 99% of waste gases. An audible and visual alarm (optional) alerts operators when the waste liquid tank is full. Whether it’s organic solvents or other volatile and hazardous chemicals, they can all be safely collected, ensuring the safety of operating personnel.
All components are resistant to corrosion by organic solvents. The entire pipeline is installed behind the test bench, and waste liquids are collected centrally in a waste liquid container via piping, which not only prevents solvent evaporation but also simplifies management.
Application Cases

Measured data
After being stored for 7 days in a semi-open solvent bottle, an 80% methanol aqueous solution experienced a 2% reduction in volume and a 1% decrease in methanol concentration. However, when a safety cap was used under the same conditions, the changes in both volume and concentration were negligible.
The volatile organic solvent concentration at the opening of a semi-open waste liquid container can reach 50–150 ppm. After installing a safety cap, the volatile concentration drops to below the ppm level. This is particularly beneficial for odor-prone samples—such as those containing tenofovir—where the safety cap on the waste liquid container helps improve work efficiency.
The safety bottle cap has many components and is cumbersome to install. For customers purchasing 10 sets or more, we offer one free on-site installation service. For customers purchasing fewer than 10 sets, we provide video installation guidance.
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Product Name |
Product Description |
Order item number |
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2 Kong solvent bottle cap set |
2 1 GL45 safety bottle cap with socket, solvent bottle cap kit accessories (1 set of transparent 3.2mm inverted-cone connector assembly, 1 white air valve) |
HKCJT-0452005 |
|
3 Kong solvent bottle cap set |
3 1 GL45 safety bottle cap with socket, plus solvent bottle cap kit accessories (2 sets of 3.2mm inverted-cone connectors, 1 plug, and 1 air valve) |
HKCJT-0453005 |
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4 Kong solvent bottle cap set |
4 1 GL45 safety bottle cap with socket, plus solvent bottle cap kit accessories (2 sets of 3.2mm reverse-cone fittings, 1 set of 1.6mm reverse-cone fittings, 2 end caps, and 1 air valve). |
HKCJT-0454005 |
|
Waste Liquid Bucket Lid Set (General) |
6 1 GL45 safety bottle cap, 1 purification ball, and a set of waste liquid bucket accessories (including 1 each of 6mm and 8mm hose connectors, 4 plugs, 1 set of 3.2mm reverse-cone connectors, 1 set of 2.5mm reverse-cone connectors, 2 sets of 1.6mm reverse-cone connectors, and 1 each of 6mm and 8mm Y-shaped tees). Plus, receive 1 x 10L GL45 drum free of charge! |
HKCJT-0456110 |
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Waste Liquid Bucket Lid Set (waters Dedicated) |
6 1 GL45 safety bottle cap, 1 purification ball, and a set of waste liquid bucket accessories (including 1 each of 6mm and 8mm hose connectors, 4 plugs, 1 set of 3.2mm inverted-cone connector assemblies, 3 sets of 2.5mm inverted-cone connector assemblies, 1 each of 8mm Y-shaped tees, and 1 hexagonal plug). Plus, receive 1 x 10L GL45 drum free of charge. |
HKCJT-0456115 |
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S60 Waste Liquid Bucket Lid Set |
S60 1 safety cap, 1 purification ball, accessory kit for waste liquid container (including 1 each of 6mm and 8mm hose connectors, and 1 each of 6mm and 8mm Y-shaped tees), 1 alarm device, 1 free container, and 1 plastic wrench. |
HKCT-0603101 |
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S60 Waste Liquid Bucket Lid Set |
S60 1 safety cap, 1 purification ball, accessory kit for waste liquid container (including 1 each of 6mm and 8mm hose connectors, 1 plug, 1 set of 3.2mm reverse-cone connectors, 1 set of 2.5mm reverse-cone connectors, 1 set of 1.6mm reverse-cone connectors, and 1 each of 6mm and 8mm Y-shaped tees), 1 alarm device, 1 free container, and 1 plastic wrench. |
HKCJT-0604101 |
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S60 Waste Liquid Bucket Lid Set |
S60 1 safety cap, 1 purification ball, accessory kit for waste wave bucket (including 1 each of 6mm and 8mm hose connectors, 2 end caps, 1 set of 3.2mm reverse-cone connectors, 1 set of 2.5mm reverse-cone connectors, 1 set of 1.6mm reverse-cone connectors, and 1 each of 6mm and 8mm Y-shaped tees), 1 alarm device, 1 free bucket, and 1 plastic wrench. |
HKCIT-0605101 |




