Separator range
Oil water separator models and flow rates
Use the range below as an initial comparison. The final separator must be checked against actual and peak flow, oil loading, suspended solids, detergents and the approved outlet pathway.
Compact separator
TEFX1000
For lower-flow wash bay or workshop wastewater where the contaminant profile suits coalescing separation.
- Actual flow720 L/hour
- Net volume120 L
- PumpMono CP11
Compact separator
TEFX1500
Additional internal volume at the same published treatment flow as the TW1000.
- Actual flow720 L/hour
- Net volume160 L
- PumpMono CP11
Medium-flow separator
TEFX3000
For sites requiring a higher treatment rate and more separator volume than the compact models.
- Actual flow1,660 L/hour
- Net volume350 L
- PumpMono CP25
Higher-flow separator
TEFX6000
For larger washdown or industrial applications with a confirmed hydraulic loading.
- Actual flow4,200 L/hour
- Net volume950 L
- PumpASM DS 38
High-capacity separator
TEFX10000
For higher wastewater volumes. Current flow, pump and net-volume data are confirmed against the supplied model at quotation.
- Actual flowConfirm
- Net volumeConfirm
- PumpConfirm
Large separator
TEFX15000
The largest model in the Trade Wash range for high-flow applications.
- Actual flow14,400 L/hour
- Net volume2,375 L
- PumpConfirm
SEPARATOR COMPARISON
Compare oil water separator specifications
Use this table as a preliminary guide. Final equipment selection should be checked against continuous and peak treatment flow, wastewater characteristics, oil and solids loading, site layout and the intended downstream water pathway.
| Model | Maximum separator flow | Configured treatment flow | Pump configuration |
|---|---|---|---|
| FX1000SS | 1,000 L/h | 720 L/h | Mono CP11 |
| FX1500SS | 1,500 L/h | 720 L/h | Mono CP11 |
| FX3000SS | 3,000 L/h | 1,660 L/h | Mono CP25 |
| FX6000SS | 6,000 L/h | 4,200 L/h | ASMD S38 |
| FX10000SS | 10,000 L/h | Configured to application | Pump selected to project duty |
| FX15000SS | 15,000 L/h | Configured to application | Pump selected to project duty |
| FX20000SS | 20,000 L/h | Configured to application | Pump selected to project duty |
| FX30000SS | 30,000 L/h | Configured to application | Pump selected to project duty |
COMMON APPLICATIONS
Where are oil water separators used?
Oil water separators are used where captured wastewater may contain free, non-emulsified oils and settleable solids. They are generally installed as one stage within a broader wastewater collection and treatment system.
Suitability depends on the source of the wastewater, expected treatment flow, oil and solids loading, detergents or chemicals present and where the treated water is intended to go.
- Vehicle and fleet wash bays
Wash water generated by trucks, buses, commercial vehicles and fleet equipment where fuel, lubricants and road sediment may be present. - Heavy machinery and equipment washdown
Captured wastewater from excavators, loaders, mining plant, agricultural machinery and other equipment carrying oil, grease and sediment. - Workshops and maintenance facilities
Wastewater from equipment cleaning, servicing areas and workshop washdown where free oils and lubricants can enter the collection system. - Industrial wastewater treatment
Primary oil separation ahead of holding, further treatment, an approved trade-waste connection or a water recycling system.
SEPARATION PROCESS
How does an oil water separator work?
Oil water separation uses the density difference between water, free oil and settleable solids. Wastewater passes through the separator at a controlled treatment flow, providing time for solids to settle and free oil droplets to rise rather than being carried through with the water.
01
Control the treatment flow
Captured wastewater is pumped into the separator at a configured rate below its maximum hydraulic capacity. Excessive flow can reduce separation time and treatment performance.
02
Separate oil and solids
The flow is slowed and distributed within the separator. Denser settleable solids fall, while free oil rises. Coalescing plates help smaller oil droplets combine into larger droplets that rise more readily.
03
Retain the contaminants
Separated oil and settled solids remain within designated collection areas for inspection and removal. Regular maintenance helps prevent accumulated contaminants from being carried into the outlet.
04
Transfer the water onward
Separated water leaves the unit and moves towards holding, additional treatment, an approved trade-waste connection or a recycling system, depending on the requirements of the site.
Oil water separators are principally intended for free, non-emulsified oil and settleable solids. Detergents, stable emulsions, dissolved hydrocarbons and fine suspended solids may require additional treatment.
Information needed
Separator selection inputs
These details let us size the equipment and identify questions that should be resolved before pricing or construction.
- Peak and average wastewater flow
- Oil type and expected concentration
- Mud, grit and suspended solids
- Detergents, degreasers and emulsification risk
- Available gravity fall, pumping and plant space
- Required outlet quality and authority conditions
Compare options
Know when oil separation is not enough.
An oil water separator is designed principally for free, non-emulsified oils and settleable solids. Wastewater containing heavy solids, detergents, stable emulsions, dissolved hydrocarbons or requiring reuse-quality output may need additional treatment stages.
The treatment train should be selected against the actual wastewater characteristics, intended water pathway and required outlet quality – not a generic compliance claim.
| Treatment approach | May suit | Typical system arrangement | Confirm before selection |
|---|---|---|---|
| Oil water separation | Free, non-emulsified oil with manageable settleable solids | Collection system, controlled pumping and oil water separator | Peak flow, oil characteristics, detergent selection and outlet acceptance |
| Solids and oil treatment | Wash water containing mud, grit and heavier solids loads | Bucket trap, settlement or solids capture followed by oil water separation | Solids loading, clean-out access, pump protection and maintenance frequency |
| Specialist wastewater treatment | Stable emulsions, non-quick-break degreasers, dissolved contaminants or tighter outlet limits | Wastewater testing, separation and additional treatment selected for the contaminants | Treatability, required performance and authority conditions |
| Water reuse treatment train | Recurring wastewater with a clearly defined reuse application | Oil separation followed by additional treatment, filtration and storage as required | Reuse-quality target, monitoring, maintenance and intended reuse duty |
Questions we are regularly asked
Before you request pricing
Final suitability and regulatory requirements remain specific to the site, water authority and proposed discharge or reuse pathway.
What size oil water separator do I need?
Sizing depends on the expected flow rate, oil load, solids, wash activity, available fall or pumping arrangement, and the proposed water destination. We confirm these details before recommending a separator model.
Will an oil water separator remove detergent?
Oil water separators are designed for free, separable oils. Detergents and degreasers can emulsify oil and reduce separation performance, so additional treatment may be required where detergents are used.
Should solids be removed first?
Yes. Heavy sediment, mud and grit should usually be managed before the separator. Excess solids can reduce capacity, increase maintenance and affect separation performance.
Can treated water go to stormwater?
Discharge depends on the site, water authority requirements and treated water quality. Stormwater discharge should not be assumed. The approved pathway needs to be confirmed before quoting or installation planning.