Row of polished filter housings ready for assembly at Delta Xero

Filters and clean oil, without the hassle

Union Oiltech in Svendborg, Denmark, has supplied filters to industry since 1965. Today the business stands on two legs.

Send your filter listHow Delta Xero works
Filter cartridges in stock

Need filters?

Send what you have: a list, an old invoice or a photo of the filter.

Send your filter list
Delta Xero system with Powertrain cartridge and oil cartridge

Need to keep oil or diesel clean?

Delta Xero cleans oil and diesel in a kidney loop while your equipment keeps running.

How Delta Xero works

Need filters?

Filters are not exciting. Until they are missing. Send what you have: a list, an old invoice or a photo of the filter. We match it against 135,000 part numbers across brands and check the price line by line.

Filter paperFilter bagsAir and extraction filtersOil and fuel filtersHydraulic filtersSpecial filters
Filter housings on the assembly bench
Close-up of a Powertrain filter housing with engraved logo
Send your filter list for a price checkSee all filter categories

Need to keep oil or diesel clean?

Delta Xero cleans oil and diesel in a kidney loop while your equipment keeps running: particles down to 0.1 µm, water, sludge and varnish. The effect is documented with samples before and after.

The Delta Xero 1525 system
Your tank or reservoiroil or dieselwater, sludge and varnish-forming degradationsuction line from the tank bottomDelta XeroDelta Xero cartridgeclean oil returned above fluid levelYour equipment's own filters and operation are unchanged.
How Delta Xero worksTry it in a pilot programme with a report

What we solve

Three fields of application, one principle: clean the fluid while the equipment works.

Delta Xero Powertrain system installed next to a diesel tank

Emergency power and diesel tanks

Stored diesel collects water, bacteria and sludge. We clean the tank continuously, so the generator has clean fuel on the day it has to deliver.

About emergency power
Delta Xero system mounted on a harbour crane

Cranes

Offline filtration of hydraulic oil and diesel in the crane tanks while the crane keeps working.

About cranes
Container ship leaving port

Marine operations

Stern tubes, thrusters, gearboxes and MGO. Compact systems and fast sample results.

About marine

Numbers, not adjectives

A data centre had two backup fuel tanks cleaned from ISO 23/23/22 to 15/13/10 in six days. A hydraulic press went from recurring valve failures to two years without one. You will find numbers like these in our case studies.

ISO 23/23/2215/13/10
Two patch tests of the same oil: dark brown at the start, nearly clear after 72 hours
Patch test of the same oil: at the start and after 72 hours of filtration.
99.53%of the water removed from stored diesel
2 yearswithout valve failures on a hydraulic press
100,000 to 0bacteria count after treating diesel bug
Case studies includeIDEPorticoStadcoPerkinsNovium
Case studies with before-and-after numbersAbout Union OiltechContact us
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Order for your stores, from anywhere

Find your filters, see prices and order for stock. From the office or from the engine room.

Search by part number or brandBasket (3)
Filter paperFilter bagsAir filtersOil and fuelHydraulicsDelta Xero
Hydraulic filter HF-6177Fits Parker, 25 µmIn stockAdd to basket
Filter bag PE-25 P2Size 2, polyester, 25 µmIn stockAdd to basket
Air filter LA-4402Extraction, class F7In stockAdd to basket
Delta Xero 1525Complete unit with cartridgeIn stockAdd to basket
Reorder from last order: 12 lines in one click
Basket (3)
HF-6177Add to basket
PE-25 P2Add to basket
DX 1525Add to basket
Reorder: one click

Send your filter list for a price check

Send what you have: a list, an old invoice or a photo of the filter. We usually reply the same day.

Send your filter listCall 76 20 80 10