Marine Insight: 15Ppm Bilge Separator

Marine Industry Demand for 15ppm Bilge Separators: Ensuring Vessel Safety and Regulatory Compliance

The 15ppm bilge separator is a critical component in the marine pollution prevention systems of commercial, offshore, and naval vessels. As global maritime regulations continue to tighten, particularly under the International Convention for the Prevention of Pollution from Ships (MARPOL Annex I), the ability of vessels to effectively separate oil from bilge water before discharge is no longer optional—it is a compliance imperative. The 15ppm threshold refers to the maximum allowable oil concentration in discharged bilge water, a standard enforced by port state control authorities worldwide. Failure to meet this standard can result in severe penalties, vessel detention, and reputational damage for shipping companies.

Bilge water, a mixture of water, lubricants, fuel residues, and other contaminants that accumulate in the lowest part of a ship’s hull, poses a significant environmental risk if discharged untreated. The 15ppm bilge separator ensures that this wastewater is processed to meet regulatory standards before being released overboard. These systems typically employ a combination of gravity separation, coalescence, and fine filtration technologies to achieve the required purity level. Advanced models also integrate oil content monitors (OCMs) and automatic shutdown mechanisms to prevent non-compliant discharges, thereby enhancing operational safety and environmental stewardship.

Beyond compliance, the reliability of a bilge separator directly impacts vessel uptime and maintenance costs. Systems that are poorly designed or constructed from substandard materials are prone to clogging, mechanical failure, and frequent servicing—issues that can lead to unplanned dry-docking and operational delays. This underscores the importance of sourcing high-performance equipment from reputable manufacturers with proven expertise in marine pollution control systems.

Hangzhou Star Marine Technology Co., Ltd. has established itself as a trusted supplier of marine outfittings, offering 15ppm bilge separators that meet international standards including IMO MEPC.107(49), ISO 10088, and classification society requirements (CCS, ABS, DNV, LR, etc.). Our separators are engineered for durability, efficiency, and ease of maintenance, incorporating robust stainless-steel construction, optimized flow dynamics, and intelligent monitoring systems. Designed for vessels ranging from inland barges to offshore supply vessels, our units deliver consistent performance under demanding maritime conditions.

Sourcing from Star Marine China offers significant cost advantages without compromising quality. Our vertically integrated manufacturing process, strategic location in Hangzhou, and streamlined export logistics enable us to deliver competitively priced systems with shorter lead times compared to Western suppliers. Additionally, we provide comprehensive technical support, documentation, and after-sales service, ensuring seamless integration and long-term reliability.

Below is a comparison of standard technical specifications for our 15ppm bilge separator models:

By combining regulatory compliance, operational reliability, and cost-effective sourcing, Hangzhou Star Marine Technology supports shipowners and operators in maintaining safe, sustainable, and efficient maritime operations.

Technical Specs & Approval

Technical Specifications: 15ppm Bilge Water Separator Systems

Hangzhou Star Marine Technology Co., Ltd. designs and manufactures 15ppm bilge water separator systems in strict compliance with International Maritime Organization (IMO) Resolution MEPC.107(49) and relevant ISO 10088 standards. These critical marine pollution prevention systems are engineered to ensure discharged bilge water contains oil concentrations not exceeding 15 parts per million, meeting MARPOL Annex I discharge criteria globally. Our separators utilize proven coalescence and gravity separation principles, incorporating advanced oil content monitoring (OCM) systems with automatic overboard discharge shutdown functionality. Material selection, structural integrity, and precise dimensional adherence are paramount for reliable operation in harsh marine environments and successful regulatory surveys. All units undergo rigorous factory acceptance testing (FAT) per classification society requirements prior to shipment.

The core construction materials are selected based on vessel operational profile and client specification, offering optimal corrosion resistance and longevity. Marine-grade aluminum alloy (typically 5083 or 6061 series) with protective anodization is standard for lightweight applications and vessels where weight savings are critical. Alternatively, marine carbon steel (ASTM A36/A572 equivalent), prepared to SA 2.5 surface cleanliness and coated with a high-performance epoxy coating system (minimum 300µm DFT), is utilized for maximum durability in demanding conditions. All wetted internal components, including coalescer elements, sensors, and piping, are fabricated from non-corrosive materials such as stainless steel (316L), engineered plastics (PP, PVDF), and specialized elastomers compatible with hydrocarbons and seawater. The separator vessel and associated skid structure are designed and certified to withstand maximum operating pressures while maintaining absolute watertight integrity. External electrical enclosures conform to IP66 protection rating per IEC 60529, ensuring resilience against water ingress and dust during deck-mounted installations or within machinery spaces.

Key technical parameters for Hangzhou Star’s standard 15ppm bilge separator range are detailed in the table below. Dimensions and weights are indicative and vary based on specific flow capacity and material configuration chosen. Precise dimensional drawings are provided during the quotation phase for integration planning.

Installation requires careful consideration of space allocation, accessibility for maintenance and OCM calibration, alignment with vessel bilge suction and overboard discharge piping, and adherence to minimum inlet head requirements specified in the installation manual. Hangzhou Star provides comprehensive technical documentation, including GA drawings, P&IDs, and operation manuals, to facilitate seamless integration and ensure the system meets all flag state and port state control requirements throughout its operational life. All separators are supplied with full material test reports (MTRs) and third-party certification documentation.

Shipbuilding Solutions

Hangzhou Star Marine Technology Co., Ltd. delivers comprehensive marine outfittings solutions tailored for shipbuilding and vessel repair projects worldwide. As a trusted provider of critical pollution control systems, we specialize in the engineering, supply, and integration of 15ppm bilge separators that meet stringent international regulations, including MARPOL Annex I and IMO MEPC.107(49). Our end-to-end service model ensures seamless project execution from design support to after-sales commissioning, making us a preferred partner for shipyards and repair facilities seeking reliable, compliant, and efficient machinery systems.

For new construction projects, Star Marine collaborates closely with naval architects and design teams during the early phases of vessel development. We provide technical documentation, 3D modeling support, and system integration recommendations to ensure optimal placement, piping layout, and electrical interface compatibility. Our 15ppm bilge separator units are engineered for compact footprint, ease of installation, and long-term operational stability under harsh marine conditions. With multiple models available, we offer scalable solutions suitable for a wide range of vessel types, including cargo ships, tankers, offshore support vessels, and passenger ferries.

In ship repair and retrofit applications, we understand the critical importance of minimizing downtime and ensuring regulatory compliance. Our technical support team delivers rapid assessment services, offering customized retrofit kits and upgrade packages for aging oily water separator systems. Whether replacing obsolete units or enhancing monitoring capabilities to meet updated discharge standards, our solutions are designed for quick integration with minimal disruption to vessel operations.

All Star Marine 15ppm bilge separators are built with advanced three-stage separation technology—gravity, coalescing, and final polishing—ensuring consistent effluent quality below the 15 parts per million oil content threshold. Integrated oil content monitors (OCM), automatic oil discharge systems, and programmable logic controller (PLC)-based control panels enhance operational safety and simplify crew management. Our systems are certified by major classification societies, including CCS, ABS, DNV, LR, and BV, ensuring global acceptance and audit readiness.

To support fast response times, we maintain strategic inventory stock in key logistics hubs and operate a responsive technical service network across Asia, the Middle East, and Europe. Our export department is experienced in handling complex shipping documentation, customs clearance, and just-in-time delivery schedules aligned with shipyard milestones.

Below is an overview of standard technical specifications for our flagship 15ppm bilge separator series:

From initial inquiry to final commissioning, Hangzhou Star Marine Technology ensures technical excellence, regulatory compliance, and operational continuity—delivering complete bilge water management solutions for modern maritime demands.

Packaging & Logistics

Packaging & Logistics Protocol for 15ppm Bilge Separator Exports

Hangzhou Star Marine Technology implements stringent, industry-compliant packaging and logistics procedures for all 15ppm bilge separator units to ensure global delivery integrity. As critical marine pollution prevention equipment governed by MARPOL Annex I, our packaging strategy prioritizes structural resilience against maritime transport hazards including vibration, moisture, and handling impacts, while adhering to all international phytosanitary and customs regulations. Units are prepared for seamless integration into global containerized shipping networks originating exclusively from China’s premier maritime hubs, Ningbo (Port Code: NGB) and Shanghai (Port Code: SHA).

Primary packaging utilizes custom-engineered wooden export crates constructed from kiln-dried, ISPM 15 certified softwood. All wood components undergo mandatory thermal treatment (HT) to 56°C core temperature for a minimum of 30 minutes, eliminating pest risks, and are stamped with the official IPPC mark including our registered facility code, country code (CN), and treatment indicator (HT). Crates feature internal bracing with marine-grade plywood liners and vibration-dampening polyethylene foam encapsulation, securing the separator vessel, control panels, and ancillary components against displacement. Critical electrical elements receive additional anti-static shielding. This methodology exceeds IMO MSC/Circ.740 recommendations for machinery securing and prevents condensation-induced corrosion during extended ocean voyages.

For heavier modular configurations or project cargo shipments, robust steel pallet systems are deployed. These reusable pallets, fabricated from hot-dip galvanized steel with non-slip surfaces, support unit weights up to 2000 kg and incorporate integrated lifting points compliant with ISO 18186 standards. Steel pallets eliminate wood-related customs delays in regions with strict phytosanitary enforcement and offer superior stackability for optimized container space utilization. All external surfaces are treated with temporary volatile corrosion inhibitor (VCI) coatings, and units are shrink-wrapped with UV-stabilized polyolefin film.

The following table details standard packaging configurations:

Export operations are coordinated through our dedicated logistics team at Ningbo-Zhoushan and Shanghai Yangshan ports. Both facilities offer direct access to major global carrier services (Maersk, COSCO, MSC) with weekly sailings to all key maritime regions. Pre-shipment documentation, including ISPM 15 certificates, packing lists, and commercial invoices referencing IMO MEPC.107(49) compliance, is meticulously prepared to expedite customs clearance. Units are containerized under supervision within port-bonded warehouses, with real-time GPS tracking activated upon vessel loading. We maintain established relationships with port authorities to minimize dwell times, typically achieving vessel turnaround within 24-48 hours of arrival at terminal. This integrated approach guarantees that Hangzhou Star bilge separators arrive at destination ports in operational condition, fully prepared for immediate vessel integration and survey compliance verification.

Contact Star Marine

For international shipowners, shipbuilders, and marine system integrators seeking reliable and compliant solutions in marine pollution control, Hangzhou Star Marine Technology Co., Ltd. stands at the forefront of innovation and quality in marine outfittings. Our 15ppm bilge separators are engineered to meet the stringent requirements of MARPOL Annex I, ensuring operational compliance and environmental protection across global shipping routes. As a trusted manufacturer with extensive experience in marine oily water separation systems, we are committed to delivering robust, efficient, and certified equipment tailored to the demanding conditions of maritime operations.

Our 15ppm bilge separators are designed for optimal performance in separating oil from bilge water to ensure discharge levels remain below the 15 parts per million threshold mandated by international regulations. These systems incorporate advanced three-stage separation technology—gravity separation, coalescing, and final polishing—ensuring consistent compliance and minimal maintenance. Constructed from high-grade stainless steel and equipped with intelligent monitoring systems, including oil content meters and automatic shutdown functions, our separators offer long-term durability and regulatory assurance.

We understand that selecting the right bilge water treatment system involves technical evaluation, integration planning, and certification verification. To support your procurement and integration process, we provide comprehensive technical documentation, including type approval certificates from major classification societies such as CCS, ABS, DNV, LR, and BV. Our engineering team is also available for direct consultation to assist with system sizing, installation requirements, and retrofit compatibility.

To discuss your specific project requirements or request a detailed quotation, we invite you to contact our Product Manager, Kacher YE, who specializes in the export coordination and technical support of our bilge separation systems. With in-depth knowledge of international maritime standards and export logistics, Kacher ensures a seamless experience from inquiry to delivery.

Below is an overview of standard technical specifications for our 15ppm bilge separator series:

For technical inquiries, project-specific configurations, or to request product brochures and approval documents, please reach out directly to Kacher YE via email at [email protected]. We respond promptly to all professional inquiries and support clients across Europe, Asia, the Middle East, Africa, and the Americas. Partner with Hangzhou Star Marine Technology for a compliant, efficient, and future-ready bilge water management solution.