Flux Pumps compression glands are practical, safety-enhancing accessories designed to secure JuniorFlux and CombiFlux pumps in a wide range of container openings, including canisters, hobbocks, drums and IBC caps. By forming a partial seal around the pump tube, this compression gland limits the escape of potentially harmful vapours and additionally, reduces the risk of unwanted debris entering the container. It not only promotes cleaner, safer operations, but also helps maintain the integrity of your product. Moreover, the gland secures the pump and eliminates unwanted movement during operation. Available with three different internal diameters, the Flux compression gland accommodates pump sizes from 25-32 mm and is suitable for container openings from 40-70 mm in diameter. Furthermore, it is manufactured from durable PVC and PP materials, so can withstand routine use in industrial and commercial environments. Note that the compression gland is not immersed in the pumped liquid. This useful accessory is often overlooked, however, it improves pump installation, cleanliness and safety, therefore making it a valuable addition to your fluid transfer system.

Pump Nominal Ø (mm)	Material
32	PVC
28	PP insert / PVC
25	PP insert / PVC

Compatible with Flux JuniorFlux and CombiFlux pumps

Variable diameter fits 40 – 70 mm container openings

Ensures secure pump mounting

Reduces vapour emissions

Stops contaminants and debris from entering the container

Compression glands are also available for Flux F 400 and F 500 series pumps. Contact us for further details.

A compression gland is a precision-engineered adaptor, designed to secure a cylindrical object, typically a drum pump shaft or suction tube, in a container opening, such as a drum or IBC.

The compression gland functions by applying radial compression through mechanical tightening. This action forces a sealing element (often made from elastomeric or thermoplastic material) to conform around the inserted tube. Furthermore, the gland secures the pump in the container, eliminating unwanted movement that could cause the container to become unstable, particularly when nearly empty.

When installed, the gland retains an open slot to allow air in and out of the container, thereby stopping a vacuum forming. Additionally, the gland also creates a barrier that reduces the potential of atmospheric contaminants (dust, debris, moisture or microbes) from entering the container, while simultaneously minimising the emission of vapours, or hazardous fumes, into the work environment.

This is particularly important when working with volatile organic compounds, reactive chemicals, or food-grade liquids, helping to ensure process integrity, operator protection and compliance with environmental and health regulations such as REACH, FDA, or EC 1935/2004 standards, depending on the application.

Compression glands are also available for F 300, F 400 and F 500 series Flux pumps. Contact us for further details.

Flux offers two solutions to securely fix a pump into a drum or IBC container. A compression gland is a cost-effective, dual-function solution: it stabilises the pump tube during operation and creates a partial seal that isolates the container’s contents from external contamination sources. The second option is the fume gland – this totally seals the pump into the container, thereby eliminating the risk of harmful vapour emissions. You can find out more about fume glands here.

The compression gland is simple to use. Simply slide the gland over the end of the pump tube, or suction lance. Then insert the pump into the container to be emptied. Push the gland down into the container opening. In doing so, pressure is applied uniformly around the pump tube until the pump is secured. This prevents unwanted movement or tilting during fluid transfer, but also creates a partial seal around the tube.

This is especially important when dealing with hazardous, flammable, or hygroscopic substances, where exposure to air can degrade the product, or pose safety risks. The compression gland also serves to reduce vapor emissions, reducing operator exposure as recommended by Health and Safety guidelines.