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Light liquid separator

Light liquids under control

Whether stationary or mobile, light-liquid separators reliably separate oils, fuels and other light liquids from waste water, thereby protecting the environment, plant and infrastructure. They are used wherever such substances are employed as machining, cooling or power transmission media.

Ideal for use with varying volumes of wastewater or heavily polluted water – our separators ensure reliable separation and lay the foundations for sustainable water treatment.

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Separator systems for light liquids from LK Metall

With our combination of over 45 years’ experience and innovative technologies, we offer you efficient, reliable and environmentally friendly separator systems for light liquids.

Double-acting functional principle
We rely on a functional principle that allows both continuous and discontinuous operation – for consistently high performance with any volume of wastewater.

This means that separation can take place either continuously or in batches – depending on the volume of wastewater and operational requirements.
Free installation
We install our light liquid separators in a free-standing configuration, which avoids costly excavation work and allows the system to be moved quickly and easily if necessary.

This gives you maximum flexibility in terms of placement – ideal for changing locations or confined spaces.
Low cleaning effort
We use smooth, corrosion-resistant materials for our light liquid separators, which minimise deposits and make cleaning much easier.

This reduces maintenance to a minimum – for long-term hygienic operation with low maintenance requirements.

Your new separator solution is already waiting for you

Profitieren Sie von langlebiger Technik, einfacher Wartung und flexibler Aufstellung – wir beraten Sie gern.

Separator systems that work – and look the part

Take a look at a selection of our projects – from bespoke separator systems to complete system solutions for a wide range of applications. Quality that impresses – in every sector, at every site.

Design and operation of our light liquid separator (LFA)

Light liquid separators reliably separate substances such as oil, petrol or diesel from waste water – thanks to a double-acting operating principle, they work equally well in both continuous (with a constant inflow) and intermittent (with an inflow at intervals) operation.

An integrated coalescence stage ensures maximum separation efficiency by combining the finest light liquid droplets into larger units that are easier to separate.

The associated sludge trap with a tailored sedimentation unit – either welded on or separate – ensures effective pre-treatment before the water flows through the separation unit. A sampling tap on the outlet box facilitates the taking of control samples.

Our systems feature well-thought-out details for day-to-day operation: an odour- and gas-tight lid design with a supporting gas spring for easy opening, an optimised number of packing cassettes for simple handling, and lifting eyes for convenient transport.

Thanks to their freestanding design, there is no need for time-consuming excavation work – the unit remains mobile, fully visible and can be easily repositioned using a forklift or crane if required. Manufactured from high-quality V2A or, optionally, V4A stainless steel, our separators are particularly durable, low-maintenance and robust – and are also available in a silicone-free version for demanding sectors such as the automotive industry.

The tested and DiBt-approved LK-System-H separation technology not only ensures safety and compliance with standards, but can also be flexibly adapted to growing requirements – for example, by simply replacing the system components as flow rates increase.

Temporary assignment or changing locations?

Mobile separator

Flexible, ready for use, powerful

Ready for use in minutes
Versatile
Sustainable technology
Robust and durable
Complies with the German Road Traffic Regulations (StVO)

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Technology that impresses – service that lasts

Our team is on hand to advise you on light-liquid separators and other products – in a personalised and straightforward manner.

Make an enquiry

Light-liquid separator with integrated oil reservoir

Our light liquid separators/oil separators are designed so that the separated oil is collected either in a permanently welded-on oil storage tank or in a separate oil storage tank.

This flexible design allows for optimal adaptation to the specific site conditions and operational requirements. The major advantage is that the separated oil can be removed whilst the plant is in operation – without any interruption or downtime.

An integrated level monitoring system continuously monitors the oil level in the tank and automatically alerts the operator as soon as 80 % of capacity is reached. This allows sufficient time for emptying, avoids downtime, and ensures the safe, legally compliant operation of the plant at all times.

The LK UNO and DUO light liquid separators are type-approved by the DiBt (German Institute for Building Technology).

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Our comprehensive service for your light liquid separator

Separator Service

Maintenance, general inspection, training

A comprehensive service covering all aspects of your separator system
Support right from the planning stage and project launch
Keeping track of disposal, maintenance and inspection requirements
Certified quality: WHG-certified specialist company & ISO 9001
Documentation and evidence for regulatory authorities included
Training courses for self-monitoring can be booked directly

Find the right light liquid separator now

Whether it’s a new build or a retrofit – we supply the separation technology that’s perfectly suited to your requirements.

Frequently asked questions about light liquid separators

Proper wastewater treatment often raises many questions – ranging from legal requirements to technical solutions. Here you will find concise answers to the most important questions regarding the efficient and safe operation of your light-liquid separator system.

What is a light liquid separator and what is it used for?

A light liquid separator separates substances such as oils, fuels and other light liquids from waste water. It is used wherever such substances are likely to enter water-carrying systems.

In which industries are light-liquid separators used?

Light liquid separators (LFA) are used wherever oils or other light liquids are employed as machining or pressure-transmission media – for example, in hydraulic systems or in cleaning processes. They are also required when oil-containing emulsions are used as lubricants or coolants in mechanical machining.

Typical sectors and applications include, amongst others:

Automotive industry
Stamping plants, foundries, mechanical engineering and metal fabrication
Wire drawing mills, electroplating and metal production/processing
Paper industry
Automotive sector, car washes and vehicle workshops
Municipal applications, depot facilities, recycling centres
Military, fire services and civil protection
Power stations, waste management facilities
Groundwater remediation
Renewable energies

Can I also use separator systems for a limited period?

You can also hire our LK light liquid separators for temporary use or for test installations.

What size or nominal size (NS) does my system require?

The required size depends on factors such as the volume of water, the degree of contamination and the installation location. We would be happy to assist you with the sizing in accordance with the applicable standard.

Your point of contact for water treatment

Adrian Flachenecker

Your technical point of contact for bespoke industrial water treatment systems.

His focus: resource-efficient, sustainable water treatment solutions.

Get in touch directly