Bürkle, V4A Safety Jug, with dispenser and pressure relief valve, 1L, #2601-1001

Anyone who fills or dispenses small quantities of flammable solvents in the laboratory needs a container that can be opened in a controlled manner without spilling anything whilst pouring. The stainless steel safety jug meets this need with three sizes ranging from 1 to 5 litres. A self-closing precision dispenser releases only the required amount, whilst a pressure relief valve keeps the internal pressure within a safe range during storage.

Precision dispenser instead of spilling and dripping

The precision dispenser sits on the jug’s 1 1/4-inch external thread and opens only as far as is actually required to dispense the liquid. Once released, it closes automatically, leaving the remaining liquid in the container. Pressure equalisation begins at around 0.3 bar, ensuring that no excess pressure is suddenly released when the dispenser is opened. This eliminates the need to weigh out small portions from a larger container and reduces the risk of spilling anything whilst decanting.

Explosion protection in the filler neck

A removable flame arrestor is fitted in the filling nozzle and prevents a source of ignition outside the canister from backfiring via the vapour space. Together with the pressure relief valve, this provides the explosion protection required when handling flammable liquids in the workplace. The flame arrestor can be removed from the nozzle for cleaning or visual inspection without having to dismantle the entire canister.

Three sizes for different consumption rates

1 litre is sufficient for small batches prepared directly at the workplace, whilst 2 litres is suitable for ongoing use at a single workstation. The 5-litre can is ideal for areas with higher throughput where refilling is required less frequently. All three sizes feature the same precision dispenser and the same flame arrestor; they differ only in outer diameter, height and weight (see table below).

Choosing the right size

If you only occasionally dispense small quantities, for example for an analysis or a series of tests, the 1-litre jug will suffice. If a workstation operates on a shift basis and the jug is emptied several times a day, the 2-litre version is the more practical choice, as it needs to be refilled less frequently. The 5-litre jug is suitable if several people at a workstation share the same jug, or if a work step regularly requires larger portions without having to switch to a canister straight away.

Material and finish

The housing is made of V4A (1.4571) stainless steel with a wall thickness of 0.6 millimetres and is electropolished, which makes the surface highly chemically resistant. The handle is made of powder-coated aluminium, whilst the seals are made of PTFE. Bürkle classifies the material as food-safe.

Cleaning and maintenance

The smooth, electropolished surface can be wiped clean with standard laboratory cleaning agents without any residues becoming trapped in the pores. After decanting, a quick wipe-down of the exterior and a rinse cycle through the fine-dose dispenser are usually sufficient before the jug is ready for use again with the next batch. Seals and the flame arrestor are replaceable individual parts, so worn components can be replaced as required without having to replace the entire jug.

Typical applications

• Filling and dispensing small quantities of flammable solvents in the laboratory
• Portioning of cleaning agents and disinfectants at the workbench
• Safe temporary storage of small quantities of flammable liquids at individual workstations
• A refill vessel alongside larger safety canisters and containers in the same solvent area

Technical details

Variants at a glance

Contents

• Stainless steel safety jug in the selected size

Service and procurement

Anyone who stores or transports larger stock quantities in addition to small filling quantities can supplement the safety jug with a safety canister with a screw cap for 5 to 20 litres or a safety container with a tap for 10 to 25 litres. For the 10-litre range , using the same precision-dosing principle , the 10-litre safety canister with precision doser is also available. LT Laborhandel orders each of the three can sizes individually and, if required, can also coordinate combinations with larger containers from the same stainless steel range. If you have any queries regarding the appropriate size for your specific workplace, please contact LT Laborhandel for assistance.