
ATEX filling machines
Where the solvent or production area may require hazardous-area specification.
Read moreSolvent filling
Solvent filling projects need careful review of the liquid, container, vapour behaviour, splash control and installation area. Many solvent enquiries also overlap with ATEX and hazardous-area requirements.
Specification
A solvent may fill quickly, but the project can be shaped by vapour, ignition risk, container opening, cap handling, operator exposure, site conditions and safe handling. These points should be addressed before choosing a standard low-viscosity filler.
Choose your equipment
Use these options to prepare a complete solvent filling and closing brief.

Where the solvent or production area may require hazardous-area specification.
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For repeated production where filling, capping and conveying need to be integrated.
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For cap torque, cap feeding, tin closure or line sealing discussions around solvent packs.
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| Area | Why it matters | Briefing point |
|---|---|---|
| Ignition and vapour | Can affect the equipment and installation approach | Provide product data and site context |
| Splash and shut-off | Thin liquids may drip, splash or create presentation issues | Discuss nozzle and fill profile |
| Container compatibility | Solvents can affect plastics, seals and labels | Share container and cap samples |
| Capping sequence | Open containers may increase vapour and spill concerns | Review capping with filling |
| Ventilation and site layout | Machinery cannot be specified in isolation | Describe production area and utilities |
Note
Solvent projects should be reviewed using product data and installation conditions. Do not use a standard filler in a potentially hazardous environment without proper assessment.
FAQ
Not always, but many solvent projects require ATEX or hazardous-area discussion. The decision depends on the liquid and installation environment.
Yes, but small-bottle solvent filling needs attention to fill accuracy, splash control, closure style and vapour management.
Send SDS, fill volume, container and closure details, target output, installation environment and any existing risk-assessment notes.
Speak to Lancing
Send the product, fill volume, container, closure and target output. Include SDS and compatibility notes where relevant.
Volatility and process control
Low viscosity does not make a solvent easy to fill. Fast flow can increase splash, turbulence and vapour release, while long pauses can allow drainage or evaporation at the nozzle. The product may also affect hose, seal and pump materials. The filler, bulk supply, receiving container and surrounding area must therefore be reviewed as one process.
Review whether the nozzle should fill above the neck, enter the container or move with the rising liquid. A controlled start can reduce initial splash; a final slow stage or positive shut-off can improve cut-off. If extraction is required, define the capture point and ensure it does not destabilise containers, pull product mist into unsuitable ductwork or interfere with weighing or flow measurement.
Peristaltic systems can keep product inside tubing, but the tube must tolerate the chemistry and cyclic compression. Diaphragm, piston, gear, flow-meter and weigh routes each have different seal, leakage, pressure, aeration and cleaning implications. Confirm all internal materials, not only the pump body, and include the cleaning or flush solvent in the approval.
Cleaning and product change
A flush sequence should state the source and destination of each liquid, the quantity or endpoint, safe collection, ventilation and how the product path is left between batches. Avoid directing an unmeasured solvent flush into open waste containers. Where product recovery is planned, identify the point at which mixed or off-specification liquid is diverted and how operators recognise the change.
| Operating condition | Potential issue | Trial or control to agree |
|---|---|---|
| High initial flow into an empty bottle | Splash, turbulence, mist or static generation | Controlled first stage, nozzle position and representative container trial |
| Production pause | Nozzle drainage, evaporation, loss of prime or first-pack error | Defined pause time, restart sequence and first-pack verification |
| Small neck or unstable pack | Misalignment, contact, spill or conveyor movement | Container guides, neck location, nozzle clearance and stop/recovery test |
| Product change or flush | Mixed product, uncontained vapour and incompatible waste | Written valve sequence, collection route, endpoint and operator sign-off |
Specialist ownership
Chemical Fillers UK covers the product and pack decisions that affect solvent dosing. Where the site has or may create a classified area, use ATEX Filling Machines UK for specialist equipment and project guidance, alongside competent DSEAR and area-classification advice. A corrosion-resistant or pneumatic filler is not automatically suitable for a flammable-liquid installation.
Solvent filling FAQ
The requirement depends on the product, release scenario, ventilation and competent hazardous-area assessment. Do not decide from the word “solvent” alone or assume ordinary equipment is suitable without assessment.
Some applications may suit peristaltic dosing, but tubing material, fatigue, permeation, flow and static considerations must be approved for the exact solvent and duty.
Potential measures include lower-turbulence filling, controlled nozzle position, suitable extraction, closed transfer and reduced open-container time. The site assessment determines the required controls.
Common causes can include drainage, loss of prime, air ingress, evaporation, changing supply head, meter limitations or container/scale effects. Reproduce starts, stops and temperature conditions during the trial.
The static-control strategy depends on the liquid, container, transfer equipment and site assessment. Conductive and non-conductive packs require different competent consideration.
Only with a documented, compatible and contained procedure. Confirm the flush liquid, sequence, endpoint, waste/recovery destination, ventilation and restart checks.
Solvent filling brief
Send the SDS, temperature, fill range, containers, classification information, extraction, static-control and cleaning details.