GRAF Treatment

GRAF Treatment Mako Shark Sedimentation Plant

GRAF MAKO hydrodynamic separator with serrated weir. TSS, oil, AFS63 and optional microplastic retention for Australian stormwater in Class D / SLW 60 shafts from 750 to 3000.

Brand

GRAF Treatment

Range

Stormwater

Sizes

Size

Selected SKU

GT-HS-750

Price on request

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Certified qualityISO 9001 · AS/NZS standards

Australian madeRotomoulded in Western Australia

15-year warrantyOn selected tank ranges

Recycled plasticsSustainable manufacturing

Typical applications

Civil sites

Attenuation

Infiltration

Key features

No height difference between inlet and outlet; the system cannot clog

Greater than 94% TSS removal (particle size d50 = 122 μm)

Greater than 98% mineral-oil hydrocarbon and light-liquid retention (DIN EN 858-1)

Greater than 99% microplastic removal with optional deflector

IKT-tested AFS63 retention on 750, 1000, 1500, 2000, 2500 and 3000 diameters

Online installation: scour-tested at twice treatment flow, no extra bypass chamber required

Class D / SLW 60 concrete shaft with surface access for inspection, suction and flushing

AU sizes from about 1,200 m² (30 L/s) to 35,000 m² (875 L/s)

Technical sizing

Size matrix & SKUs

10 technical rows - select above or quote directly

Load class

Class D / SLW 60

Size	Diameter	Height	Weight	Connection	Load class	Order no.
Model 750	1,006 mm	2,540 mm	2,650 kg	DN200	Class D	472000
Model 1000 / DN200	1,300 mm	2,570 mm	4,000 kg	DN200	Class D	472001
Model 1000 / DN250	1,300 mm	2,570 mm	4,000 kg	DN250	Class D	472003
Model 1500 / DN250	1,800 mm	2,570 mm	6,960 kg	DN250	Class D	472008
Model 1500 / DN315	1,800 mm	2,570 mm	6,960 kg	DN315	Class D	472004
Model 2000 / DN315	2,300 mm	2,670 mm	9,000 kg	DN315	Class D	472005
Model 2000 / DN400	2,300 mm	2,670 mm	9,000 kg	DN400	Class D	472002
Model 2500 / DN400	2,800 mm	2,770 mm	12,090 kg	DN400	Class D	472006
Model 2500 / DN500	2,800 mm	2,770 mm	12,090 kg	DN500	Class D	472007
Model 3000	-	-	-	-	Class D	-

Hydraulic performance

Qtreat is treatment flow. Qhyd is peak hydraulic capacity.

Size	Catchment	Qtreat	Qhyd	Oil storage	Sediment	AFS63
Model 750	1,200 m²	30 L/s	50 L/s	80 L	467 L	49.9%
Model 1000 / DN200	2,400 m²	60 L/s	115 L/s	200 L	417 L	47.4%
Model 1000 / DN250	2,400 m²	60 L/s	115 L/s	200 L	417 L	47.4%
Model 1500 / DN250	5,000 m²	167 L/s	228 L/s	420 L	960 L	48%
Model 1500 / DN315	5,000 m²	167 L/s	228 L/s	420 L	960 L	48%
Model 2000 / DN315	10,000 m²	250 L/s	416 L/s	610 L	1,715 L	48.7%
Model 2000 / DN400	10,000 m²	250 L/s	416 L/s	610 L	1,715 L	48.7%
Model 2500 / DN400	20,000 m²	500 L/s	832 L/s	1,180 L	2,699 L	47.3%
Model 2500 / DN500	20,000 m²	500 L/s	832 L/s	1,180 L	2,699 L	47.3%
Model 3000	35,000 m²	875 L/s	1,100 L/s	1,930 L	3,900 L	47.51%

EU product name: EcoProtect hydrodynamic separator (same MAKO / Mako Shark family).
Meets DWA-A 102-2; independently tested; for discharge to surface water.
No height difference between inlet and outlet; the system cannot clog.
Scope: concrete shaft with inlet/outlet piping plus hydrodynamic sedimentation unit. Cover and accessories not included.
TSS > 94% (d50 = 122 μm); oil / MOH > 98% (DIN EN 858-1); microplastic > 99% with optional deflector.

Technical data source: https://www.graf.info/en/products/rainwater-treatment/ecoprotect-hydrodynamic-separator.html

Full specification

Product details

Key construction, installation and performance notes for GRAF Treatment Mako Shark Sedimentation Plant.

Overview

The GRAF MAKO (Mako Shark / EcoProtect) is a hydrodynamic separator for stormwater pretreatment. A tangential inlet creates rotational flow so solids drop into a hydraulically isolated sludge trap and floatables stay at the surface. Treated water rises the outer ring, collects over a serrated weir, and exits with no inlet or outlet height difference.

The Australian catalogue covers about 1,200 m² to 35,000 m² connected catchment (30 to 875 L/s treatment flow) in Class D / SLW 60 concrete shafts. Cover and accessories are not included. Specify Vario connection angles, internal bypass, microplastic deflector or a flow regulator on project enquiry.

Specification focus

Key features

8 verified points

Operating principle

6 verified points

Variants

5 verified points

Detail 01

Key features

No height difference between inlet and outlet; the system cannot clog
Greater than 94% TSS removal (particle size d50 = 122 μm)
Greater than 98% mineral-oil hydrocarbon and light-liquid retention (DIN EN 858-1)
Greater than 99% microplastic removal with optional deflector
IKT-tested AFS63 retention on 750, 1000, 1500, 2000, 2500 and 3000 diameters
Online installation: scour-tested at twice treatment flow, no extra bypass chamber required
Class D / SLW 60 concrete shaft with surface access for inspection, suction and flushing
AU sizes from about 1,200 m² (30 L/s) to 35,000 m² (875 L/s)

Detail 02

Operating principle

The teacup effect drives denser particles toward the centre while oil collects above the weir. Flow breakers isolate sludge so it is not remobilised in a storm.

Tangential inlet into the separator
Teacup effect: solids settle, floatables stay at the surface
Isolated sludge trap with flow breakers and grating
Even rise along the outer ring
Serrated weir into the annular chamber, preventing short-circuit flow
Outlet with no elevation difference; cannot clog

Detail 03

Variants

Standard MAKO: physical TSS removal in a standard manhole or custom vault
MAKO Vario: factory inlet and outlet at any angle for existing pipe alignments
MAKO Bypass: project-specific internal bypass, adjustable 15 or 25 L/(s·ha) overflow
Microplastic deflector: removable screens behind the weir for tyre wear, pellets and sports-surface fibres
Optional flow regulator to limit downstream discharge from the same chamber

Detail 04

Maintenance

Large central sludge chamber and three accessible sediment chambers
Central access from above; full visual inspection of the system
Suction and flushing from outside with a standard vacuum truck
No confined-space entry, no biofilm deposits and no camera inspection required

Detail 05

Standards and testing

NJCAT verified and NJDEP certified for TSS removal
DWA-A 102 / DWA-A 102-2 design reliability for discharge to surface water
DIN EN 858-1 light liquid retention greater than 98%
SQIDEP (Australia), BWCoP (UK) and VSA (Switzerland)
IKT-tested AFS63: 750 49.9%, 1000 47.4%, 1500 48.0%, 2000 48.7%, 2500 47.3%, 3000 47.51%

Interactive 2026 brochure with full hydraulic tables, variants, AFS63 charts and principle animation.

Open MAKO 2026 brochure

Technical documents