21 May, 2018

New oil dehydration units from Filtertechnik

25 November, 2015

Filtertechnik’s new range of Neptune oil dehydration units are claimed to be ideal for returning oil contaminated with water back to health in an efficient and cost effective manner. The units can be used for cleaning oil in a fixed or mobile plant situation.


British company Filtertechnik has designed and developed this rugged range of oil dehydration units, which, states the company, can return severely contaminated oil down to acceptable levels of water content quickly and efficiently.

Four units

By utilising Filtasorb2 filtration media the Neptune range is said to be able to remove oil with a water content of many thousand parts per million (ppm) down to under 100 ppm within a very short timeframe. The Neptune range comprises four units with different flow rates:

• NDU-1NX, 15 l/min (900 l/hr).

• NDU-2NX, 25 l/min (1500 l/hr).

• NDU-3NX, 50 l/min (3000 l/hr).

• NDU-4NX, 100 l/min (6000 l/hr).

Filtertechnik comments that the Neptune units are ideal for cleaning and dehydrating lubricating and hydraulic oil in paper and steel mills, in wind powered equipment, gearboxes, large industrial plant and machine tools, injection moulding machines and industrial, construction and agricultural mobile equipment. Neptune dehydrators are also capable of drying transformer oils to under 50ppm water content.

Tests conducted by Filtertechnik show that the filtration time is in the range of 30 minutes up to three hours for a test application and so a Neptune model with an appropriate flow rate should be chosen for a given application. The two larger Neptune models feature twin filter or quad housings that allow for higher capacity dehydration.

The time taken for each Neptune unit to clean 1000 litres of hydraulic oil contaminated with water at 2500ppm down to under 400ppm (a safe working content for hydraulic oil) is as follows:

• NDU-1NX: 200 minutes.

• NDU-2NX: 120 minutes.

• NDU-3NX: 60 minutes.

• NDU-4NX: 30 minutes.

Real-time measurement

Should on-site verification of both oil cleanliness and water content levels be required during the filtration process the Filtertechnik Particle Pal W can be attached to any of the Neptune units using convenient quick connect fittings. The Particle Pal W, which employs the latest laser particle counting and water sensing technology, gives real-time measurement and display of oil cleanliness (ISO/NAS/SAE) and water content (%RH).

The filter media used in Neptune units has high-volume dirt holding capacity, enabling oil to also be cleaned down to ISO cleanliness codes of 18/16/13 while water is stripped from the oil.

Filtertechnik comments that its new range is the perfect solution to the problem of water contamination. The units are said to be capable of quickly and easily removing emulsified, entrained or free water from oils.

Why is water level measurement and filtration so important?




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