Why do you only offer OWS-COM and CS-BIO?

We specialize in RWO's top-selling systems based on regional management guidance. This focus means deeper expertise, better spare parts stock, and superior support.

What are typical lead times for RWO equipment?

Standard OWS-COM and CS-BIO systems typically require 12-20 weeks from order to delivery. We provide accurate timelines with each quotation.

How do I select the right capacity for OWS-COM or CS-BIO?

For OWS-COM: Select based on vessel size and bilge water generation rate (0.5-10.0 m³/h range). For CS-BIO: Select based on maximum persons onboard with 10-20% safety margin (6-240 persons range). Contact us with vessel details for sizing recommendations.

Is warranty included with RWO equipment?

Yes. All equipment includes standard RWO manufacturer's warranty with global service network support.

Do you stock spare parts for OWS-COM and CS-BIO?

Yes. We maintain Singapore inventory for common OWS-COM and CS-BIO components. Non-stock items ship fast from RWO Germany.

Can you ship RWO equipment worldwide?

Yes. We supply RWO equipment globally from Singapore to all regions including Asia-Pacific, Middle East, Europe, Africa, and the Americas.

N&P Maritime supplies RWO's top-selling marine water treatment systems: the OWS-COM oily water separator and CS-BIO sewage treatment plant. As an authorized RWO distributor based in Singapore, we provide genuine equipment with full factory support, warranty, and comprehensive after-sales service.These two systems represent RWO's most proven and reliable technology, chosen by vessel operators worldwide for their dependability, regulatory compliance, and cost-effective operation. Both systems are designed and manufactured in Germany to the highest standards of quality and environmental performance.

Why Source RWO OWS-COM & CS-BIO from N&P Maritime:

100% genuine RWO systems - direct from manufacturer
Authorized distributor status ensures factory support
Focus on RWO's top-selling, most proven systems
Competitive pricing with fast quotations
Singapore strategic location for Asia-Pacific delivery
Technical support for system selection and sizing
Complete after-sales support and genuine spare parts availability
Comprehensive spare parts inventory for both systems

RWO OWS-COM Oily Water Separator/

The OWS-COM is RWO's flagship oily water separator and the industry's most trusted bilge water treatment solution. With over 16,000 RWO units delivered worldwide, ship owners choose OWS-COM for its proven coalescer technology, reliability, and consistent compliance with IMO MEPC.107(49) regulations.

Key Features & Benefits

IMO MEPC.107(49) Type Approval: Fully compliant for 15 ppm discharge standards in all operational areas
Proven Coalescer Technology: Two-stage process (coalescing and adsorption) ensures consistent performance across all bilge water compositions and oil types
Wide Capacity Range: 0.5 to 10.0 m³/h - serves vessels from small workboats to large merchant ships
Compact Modular Design: Minimizes installation space, ideal for newbuilds and retrofits
Integrated Oil Content Meter (OCM): Real-time discharge monitoring with automatic shutdown if approaching 15 ppm limit
Low Maintenance: Simplified procedures, clear service intervals, easy access design, genuine spare parts readily available
Proven Global Reliability: Decades of successful operation across merchant fleets worldwide

Technical Specifications

Capacity Range: 0.5 to 10.0 m³/h
‍Discharge Standard: 15 ppm (IMO MEPC.107(49) approved)
‍Separation Technology: Two-stage coalescer and adsorber system
‍Materials: Marine-grade materials for corrosion resistance
‍Operation: Fully automatic with manual override capability
‍Monitoring: Integrated oil content meter (OCM) with alarm functions
‍Power Supply: Available in various voltages (consult for specifications)
‍Installation: Compact modular design for flexible installation

Applications & Vessel Types

The OWS-COM serves all commercial vessel types:

Merchant Vessels: Tankers, bulk carriers, container ships, general cargo vessels
Offshore: Platforms, support vessels, supply vessels, drilling rigs
Naval & Government: Naval vessels, coast guard, research vessels
Passenger: Cruise ships, ferries, ro-pax vessels
Specialized: Yachts, super-yachts, workboats, tugs, fishing vessels

Already have RWO OWS-COM equipment?

Browse our comprehensive RWO OWS spare parts catalog for genuine coalescer filter material, adsorber cartridges, sensors, heating elements, pumps, valves, and electrical components. We maintain stock in Singapore for fast delivery.

RWO CS-BIO Sewage Treatment Plant/

The CS-BIO is RWO's most popular sewage treatment plant, chosen by thousands of vessel operators worldwide for its proven biological treatment process, low operational costs, and straightforward maintenance. The activated sludge system delivers consistent IMO MEPC.227(64) compliant performance across all vessel types.

Key Features & Benefits

Biological Treatment (Activated Sludge): Natural biological process breaks down organic matter efficiently without complex chemicals or exotic consumables
IMO MEPC.227(64) Compliance: Fully compliant for treated sewage discharge in all operational areas
Low Operational Costs: Minimizes chemical consumption and energy requirements, simple crew operation
Wide Capacity Range: 6 to 240 persons - serves vessels from workboats to large cruise ships
Proven Fleet Reliability: Thousands of systems operating successfully across global merchant fleets
Simple Maintenance: Straightforward design allows shipboard crew servicing without specialized expertise
Robust Marine Construction: Corrosion-resistant materials, withstands vessel motion and harsh conditions
Comprehensive Spare Parts: N&P Maritime maintains Singapore inventory for blowers, pumps, sensors, and dosing equipment

Technical Specifications

Capacity Range: 6 to 240 persons
‍Treatment Process: Activated sludge biological treatment
‍Discharge Standard: IMO MEPC.227(64) compliant
‍Treatment Stages: Aeration, settlement, disinfection
‍Operation Mode: Fully automatic with monitoring and alarm functions
‍Aeration System: Energy-efficient blower technology
‍Materials: Marine-grade materials for corrosion resistance
‍Installation: Modular design for flexible installation
‍Power Supply: Available in various voltages (consult for specifications)

How CS-BIO Works

The CS-BIO uses a four-stage treatment process:

Aeration: Biological organisms (activated sludge) break down organic matter with oxygen from energy-efficient blowers
Settlement: Treated wastewater separates from activated sludge; clear effluent proceeds to disinfection
Disinfection: Final chlorination eliminates remaining bacteria before discharge
Sludge Management: Excess sludge removed periodically to holding tank for proper disposal

Applications & Vessel Types

The CS-BIO serves all commercial vessel types:

Merchant Vessels: All ship types requiring sewage treatment
Cruise Ships & Ferries: Proven reliability for high-capacity passenger applications
Offshore: Accommodation platforms, support vessels, drilling rigs
Naval Vessels: Government and military applications
Yachts: Super-yachts and mega-yachts requiring reliable sewage treatment
Specialized Vessels: Research vessels, fishing vessels, workboats

Already have RWO CS-BIO equipment?

Browse our RWO STP spare parts catalog for genuine blowers, pumps, chemical dosing components, sensors, control panels, and service kits. We maintain stock in Singapore for common CS-BIO components.

Why Choose N&P Maritime for RWO OWS-COM & CS-BIO/

Authorized RWO Distributor: 100% genuine equipment with full factory support, warranty, and direct RWO communication
Focus on Proven Top Sellers: Specialized expertise in OWS-COM and CS-BIO means better support and spare parts availability
Singapore Strategic Location: Efficient logistics throughout Asia-Pacific, Middle East, and beyond with competitive shipping costs
Fast Quotations: Most equipment quotes prepared within 1-2 working days
Technical Support: Assistance with capacity sizing, regulatory compliance, installation planning, and system integration
Comprehensive Spare Parts: Extensive inventory in Singapore for both systems - OWS-COM (coalescer filters, sensors, pumps, electrical) and CS-BIO (blowers, pumps, dosing components, controls)
Long-Term Partnership: Technical assistance, troubleshooting, OLD → NEW part number cross-referencing, global delivery
Quality Assured: All equipment factory-tested, certified, with complete documentation and manufacturer's warranty

RWO OWS-COM & CS-BIO Systems - Proven Marine Water Treatment

RWO OWS-COM Oily Water Separator/

Key Features & Benefits

Technical Specifications

Applications & Vessel Types

Already have RWO OWS-COM equipment?

RWO CS-BIO Sewage Treatment Plant/

Key Features & Benefits

Technical Specifications

How CS-BIO Works

Applications & Vessel Types

Already have RWO CS-BIO equipment?

Choosing the Right System for Your Vessel/

OWS-COM Capacity Selection

CS-BIO Capacity Selection

Why Choose N&P Maritime for RWO OWS-COM & CS-BIO/

Ready to Discuss Your RWO OWS-COM or CS-BIO Requirements?/

RWO OWS-COM & CS-BIO spare Parts/

Frequently Asked Questions -
RWO OWS-COM & CS-BIO/

Need RWO or Deckma Spare Parts?/

RWO OWS-COM & CS-BIO Systems - Proven Marine Water Treatment

RWO OWS-COM Oily Water Separator/

Key Features & Benefits

Technical Specifications

Applications & Vessel Types

Already have RWO OWS-COM equipment?

RWO CS-BIO Sewage Treatment Plant/

Key Features & Benefits

Technical Specifications

How CS-BIO Works

Applications & Vessel Types

Already have RWO CS-BIO equipment?

Choosing the Right System for Your Vessel/

OWS-COM Capacity Selection

CS-BIO Capacity Selection

Why Choose N&P Maritime for RWO OWS-COM & CS-BIO/

Ready to Discuss Your RWO OWS-COM or CS-BIO Requirements?/

RWO OWS-COM & CS-BIO spare Parts/

Frequently Asked Questions - RWO OWS-COM & CS-BIO/

1. Why do you only offer OWS-COM and CS-BIO, not other RWO systems?

Need RWO or Deckma Spare Parts?/

Frequently Asked Questions -
RWO OWS-COM & CS-BIO/