Ballast Water Management System Supplier

OptiMarin AS 

Under type and model designation

OptiMarin Ballast System (OBS) 

Equipment / Assembly drawings

Ballast Water Management System (BWMS) manufactured equipment / assembly 

drawings referred to under Type Approval documentation below. 

Product description

The OptiMarin Ballast System (OBS) description is given in "Manual for OptiMarin 

Ballast System" approved by DNV on 2009-11-02. 

Treatment sequence: 

Ballast water uptake: Filtration/UV Treatment 

Ballast water discharge: UV Treatment 

Application/Limitation 

Treatment Rated Capacity: 167 m3/h (one UV-chamber) 

Tests have been undertaken on the following UV-chamber configurations: 

- System with two UV-chambers: Shipboard and land-based testing (Resolution 

MEPC.174(58), Annex Part 2) 

Operational specifications for the different components:

Micro-Kill BSF Filter

The type approved system includes a BallastSafe Filter type BSFc-H (Micro-Kill BSF 

Filter) with 40μm mesh. The land-based and shipboard tests were performed with this 

filter installed. 

Based on statement and documentation received from BallastSafe with letter dated 2009-

05-13, all BSFc-H models listed below are covered by this Type Approval: 

Model Flow range 

(m3

/h)

Minimum backpressureMax. pressure drop 

allowed
BSFc-H-04 20 - 90 1.7 bars 0.5 bars 

BSFc-H-10 75 - 230 1.7 bars 0.5 bars 

BSFc-H-16 100 - 380 1.7 bars 0.5 bars 

Micro-Kill Boll Filter

The type approved system includes a Bollfilter Automatic Filter Selfclean type 6.18.2 

BWT with 40μm mesh. Additional land-based tests of the OptiMarin Ballast System with 

this filter installed were done and approved by DNV. 

Based on statement and documentation received from Boll & Kirch with letter dated 

2009-07-29, all Bollfilter models listed below are covered by this Type Approval: 

Model Flow range 

(m3

/h)

Minimum backpressureMax. pressure drop 

allowed

Bollfilter 30 14 - 30 1 bar 0.5 bars 

Bollfilter 85 21 - 85 1 bar 0.5 bars 

Bollfilter 170 24 - 170 1 bar 0.5 bars 

Bollfilter 220 50 - 220 1 bar 0.5 bars 

Bollfilter 400 80 - 400 1 bar 0.5 bars 

Bollfilter 600 100 - 600 1 bar 0.5 bars 

Bollfilter 800 150 - 800 1 bar 0.5 bars 

Bollfilter 1200 180 - 1200 1 bar 0.5 bars 

Bollfilter 1600 210 - 1600 1 bar 0.5 bars 

Bollfilter 2500 280 - 2500 1 bar 0.5 bars 

Bollfilter 3300 450 - 3300 1 bar 0.5 bars 

Bollfilter 4300 560 - 4300 1 bar 0.5 bars 

Bollfilter 5400 580 - 5400 1 bar 0.5 bars 

Micro-Kill UV reactor

Operational range of one UV-chamber is 20 m3

/h - 167 m3/h. 

A combination of UV-chambers is accepted under the following criteria: 

- Chambers mounted in parallel (vertically or horizontally) 

- The inlet and exit from the manifolds are on opposite sides 

- The construction of the chambers (i.e. dimensions, form and material) is exactly the 

same 

- The construction of the two manifolds (i.e. dimensions, form and material) is exactly 

the same. 
Any other construction that does not fit to the above must be approved by DNV before 

allowed to be considered as part of this Type Approval Certificate. 

UV-intensity meter

Acceptable range: 100 - 2500 W/m2

Measured UV intensity below 100 W/m2

 implies that the ballast water is not treated in 

accordance with this Certificate. 

Flow meter and Flow Pressure Valve

The type approved system includes a flow meter and a flow pressure valve. 

Information regarding the selected components shall be part of the documentation related 

to the specific installation, either by a reference to valid Type approval certificate or 

technical documentation 

Control Equipment

The type approved system includes the following control units: 

Description Make Type

Control panel OptiMarin AS Micro-Kill CP 

Sensor box OptiMarin AS Micro-Kill TP 

UV Power connection box OptiMarin AS UV Terminal box 

Filter Consol OptiMarin AS Micro-Kill FC 

UV Master OptiMarin AS UV HS-Ba 35K 

UV sensor uv-technik Speziallampen GmbH SUV 20.1AY2 

Type Approval documentation 

Tests carried out

- Land-based testing in accordance with Resolution MEPC.174 (58) witnessed by 

DNV 

- Shipboard testing in accordance with Resolution MEPC.174 (58) witnessed by 

DNV 

- Land-based testing for alternate filter witnessed by DNV 

- Factory Acceptance Test of the control and automation system witnessed by 

DNV 
Marking of product

For traceability of this Type Approval, each treatment system is to be marked with: 

- Manufacturer's name or trade mark 

- Type designation 

- Serial number 

Certificate retention survey

For retention of the Type Approval, a DNV surveyor shall perform a survey every second 

year and before the expiry date of this certificate to verify that the conditions of the type 

approval are complied with. 

Copy of type approval certificate

A copy of this Type Approval Certificate should be carried onboard a vessel fitted with 

this Ballast Water Management Systems at all times. A reference to the test protocol and 

a copy of the test results should be available for inspection onboard the vessel. 

END OF CERTIFICATE