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Oil purification

Oil purification units

Vacuum, coalescing, high viscosity, portable and mobile units for dehydrating, degassing and decontaminating hydraulic, lube, turbine and transformer oil. Elements for these units are made in the same workshop, so the machine and the consumable come from one supplier.

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Equipment range

Six units, one consumable supplier

Each unit is specified around the oil, the contamination and the duty cycle — flow rate, working viscosity and target cleanliness decide the configuration.

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Vacuum oil purifier on a skid
01

Vacuum oil purifier

Dehydration, deaeration and removal of mechanical impurities in one pass.

  • Oil is drawn through a coarse strainer by the pump
  • The heater brings the oil to the temperature the vacuum needs
  • The vacuum chamber drops the pressure, so water and gas leave the oil
  • The fine filter holds the particles before the oil returns to the system

Unit detail →

Coalescing oil purifier with horizontal vacuum chamber
02

Coalescing oil purifier

Precision filtration plus coalescing dehydration; breaks the oil-water emulsion without changing the physical or chemical properties of the oil.

  • Oil enters the coalescing element, where fine water droplets grow and settle
  • The separator element is oleophilic and hydrophobic, so only oil passes
  • Free water collects at the low point and is drained off
  • The fine stage behind it holds the cleanliness level

Unit detail →

High viscosity oil purifier with suction hose
03

High viscosity oil purifier

Dedicated high-viscosity grade with steady, pulsation-free output, low noise and strong self-priming.

  • The suction hose draws the oil, the gear pump carries the viscosity
  • A coarse strainer protects the pump from the debris in used oil
  • The fine element is set to the rating the machine requires
  • Oil is returned to the reservoir or fed straight into the gearbox

Unit detail →

Portable oil purifier with two-stage filtration
04

Portable oil purifier

Two-stage coarse and fine filtration; the suction strainer protects the pump and extends main element life.

  • The suction strainer takes the worst of the dirt before the pump
  • The pump pushes the oil through the fine stage
  • The fine element is selected to the target rating
  • The machine is carried or wheeled to the next job

Unit detail →

Mobile oil filter cart with gear pump
05

Mobile oil filter cart

Motor-driven gear pump with low noise, strong self-priming and steady operation; runs as a bypass unit independent of the main system.

  • Hoses are connected to the reservoir and run as a bypass loop
  • The gear pump circulates oil through the element
  • The loop runs until the cleanliness target is reached
  • The cart is disconnected and moved to the next machine

Unit detail →

Multi-function high precision oil filter cart with control panel
06

Multi-function high precision filter cart

Compact frame for fixed installation, filtering oil during system filling and removing solid particles from viscous lubricants.

  • Oil is drawn through the coarse stage on the suction side
  • Multi-layer composite media holds the particles
  • The treated glass-fibre layer takes the free water that comes with them
  • Clean oil leaves the cart ready to fill the reservoir

Unit detail →

Skid-mounted oil purification unit

From the workshop

Machine and element from one shop

A purifier is built as a skid: frame, pump, heater, filters, control panel, piped, wired and pressure tested before dispatch. The elements inside it are folded, wound and cured in the same workshop, so running costs and delivery come from one supplier instead of two.

Frame
Skid on castors or fixed feet, sized to the container it ships in
Piping
Stainless or carbon steel, with sampling points and drain valves
Control
Local panel, or PLC with the interlocks the site requires
Test
Pressure and leak test, run test on the oil you send

Send the oil grade, the volume and the target cleanliness code and the unit is quoted around those numbers.

Selection

What decides the model

Send the oil type, the contamination you are fighting and the volume to be treated. We come back with the unit, the elements and the consumable list in one quotation.

Free water, dissolved gas or both
Vacuum purifier where moisture and gas must both come out; coalescing purifier where the oil carries bulk free water.
High viscosity or filling duty
High viscosity purifier or the multi-function cart, with a pump rated for the viscosity at working temperature.
Particles only
Portable purifier, filter cart or a bypass loop; the rating is selected against the target cleanliness code.
Equipment that moves between machines
Portable purifier or mobile filter cart, both built to be reconnected quickly on site.
Filter elements on the inspection bench

Consumables

Coalescer and separator elements

Dual-stage liquid-liquid separation: the oil passes the coalescing element first, where fine droplets grow and settle, then the separator element, which is oleophilic and hydrophobic, takes out the remaining free water. Structure and material follow API-1581 and GJB610-88.

10 elements

Interchange

Hydraulic elements for fourteen brands

The same workshop also supplies interchange elements for the hydraulic brands below — give the model number and we cross-reference media, rating and interface.

22 elements
PALL
Pall
MAHLE
Mahle
ARGO
Argo
FILTREC
Filtrec
HYDAC
Hydac
PARKER
Parker
VICKERS
Vickers
MP-FILTRI
MP Filtri
TAISEIKOGYO
Taisei Kogyo
EPPENSTEINER (EPE)
EPE
STAUFF
Stauff
INTERNORMAN
Internorman
REXROTH
Rexroth
DONALDSON
Donaldson
Media
General hydraulic oil, phosphate ester hydraulic oil, emulsion, water-ethylene glycol
Material
Fibreglass filter paper (BN), stainless steel woven mesh (W), wood pulp filter paper (P), stainless steel sintered mesh (V)
Filtration rating
1 µm – 200 µm
Working pressure
21 bar – 210 bar
Working temperature
-30 °C – +100 °C
Sealing material
Fluorine rubber, nitrile rubber

Get a quotation

Tell us the oil volume and the contamination

Dehydration, degassing or particle removal — we will specify the unit, the elements and the consumables together.

Fast quotation

Send the model, a drawing or a photo

One working day for a first answer. MOQ and lead time are stated with the quotation.

Open the inquiry form