SJ700 Marine Oil Purifier Bowl Chamber Cover Parts

Product Introduction

Marine oil purifier chamber covers, also known as bowl hoods or separator covers, are critical high-precision housing components for shipboard centrifugal separators. Manufactured from premium 316L stainless steel or high-grade corrosion-resistant alloys, these covers are designed to enclose the high-speed rotating bowl assembly. Their primary functions include providing a secure seal for the centrifugal chamber, collecting and directing the separated clean oil and water to their respective outlets, and containing the high-pressure impact during the sludge discharge cycle.

Our chamber covers feature outstanding structural integrity and superior resistance to acidic fuel and salt spray, ensuring long-term leak-proof operation. They are fully compatible with major marine purifier brands such as Mitsubishi (SJ Series), Alfa Laval, and Westfalia, complying with strict CCS classification society certification standards for essential maritime auxiliary machinery.

We supply full-range spare parts for marine main engines, auxiliary engines, oil purifiers, air compressors, turbochargers and other marine equipment. Both genuine original spare parts and high-quality OEM replacement parts are available.

Complete models & sufficient stock, supporting bulk supply for shipyards, ship owners and marine service companies worldwide.

PURIFIRER

Our company specializes in providing comprehensive spare parts for all aforementioned brand marine oil purifiers, including bowl assemblies, bowl hoods, distributors, disc stacks, vertical shafts, horizontal shafts, friction blocks, worm gears, worm wheels, gasket sets, O-rings, seal rings, bowl seals, pilot valves, solenoid valves, flat belts, springs, bearings, and complete maintenance kits. We offer both stock availability and customized supply options to meet the maintenance needs of various marine centrifugal separator systems.

Product Advantage

1. Premium 316L Stainless Steel, Exceptional Corrosion Resistance

Our marine chamber covers adopt high-grade 316L stainless steel or specialized duplex alloy steel with an integral forging and precision casting process. This material selection provides 45% higher resistance to aggressive marine fuels, salt mist, and acidic oil sludge compared to standard industrial covers. It can sustain 12,000+ hours of continuous operation without pitting, erosion, or surface degradation. As a core protective component, these covers effectively prevent fluid contamination and external leakage, significantly extending the maintenance intervals and service life of the oil purification system.

2. Ultra-Precision CNC Machining, Perfect Sealing Integrity

All oil purifier bowl covers undergo 5-axis CNC finish machining and precision internal grinding to ensure that the sealing grooves and matching faces are accurate. The critical dimensions for the O-ring grooves and bowl-to-hood fit are strictly controlled within a tolerance of 0.008mm. This high level of machining precision ensures a 100% leak-proof seal even under the extreme centrifugal forces and pressure spikes during the de-sludging process. By preventing fluid bypass and external splashing, our covers maintain optimal separation efficiency during long-distance ocean voyages.

3. High-Pressure Impact Resistance & Structural Stability

The internal geometry and wall thickness of our chamber covers are engineered to withstand the repeated high-pressure hydraulic impacts of the purifier’s automatic discharge cycle. The robust design prevents structural deformation or fatigue cracking caused by the sudden release of sludge at high rotational speeds. Facing high-vibration maritime environments, our covers maintain their perfect alignment and sealing pressure. This advanced structural technology ensures the continuous and safe operation of the centrifugal separator, protecting the surrounding engine room equipment from oil mist and contamination.

4. Strict Multi-Stage Performance Testing & CCS Certification

Every batch of marine chamber covers undergoes rigorous quality checks, including ultrasonic flaw detection, high-pressure hydraulic sealing tests, and material spectral analysis before delivery. The qualification rate is stabilized at 99.7%, with an extremely low field failure rate. Supplied with official CCS Type Approval Certificates, our products meet international maritime safety and industry standards. Shipowners and maintenance crews can perform direct installation during routine service or overhauls, ensuring the rapid restoration of the purifier’s sealing capacity and minimizing operational risks caused by leakage.

Product Uses

1. Secure Fluid Containment for High-Speed Centrifugal Separation

In large-scale marine engines for container ships and tankers, the chamber cover is vital for containing the oil separation process within the high-speed rotating bowl. During long-range maritime transportation, it acts as a collection housing, ensuring that the clean oil is safely directed to the day tanks while water and impurities are isolated. Our high-strength covers ensure that the centrifugal process remains stable and contained, preventing oil loss and ensuring the main engine is supplied with high-purity fuel. Their robust design supports all-weather operations, ensuring consistent purification performance in demanding maritime scenarios.

2. Essential Leakage Prevention and Safety for Auxiliary Systems

Beyond primary oil separation, chamber covers are critical safety components for the lubricating oil purifiers that support auxiliary generators. These units must operate reliably to provide clean oil for shipboard electrical power. Our covers provide the consistent sealing and durability needed to prevent pressurized oil leaks, which are a major fire hazard in the engine room. By providing a certified and durable housing solution, we help shipowners maintain a clean and safe operating environment and comply with strict maritime classification society safety regulations for pressurized auxiliary machinery.

FAQ

Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?

A: Usually T/T100% in short delivery, if the delivery is long 50% as deposit, and 50% before delivery.

We'll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?

A: EXW, FOB, CFR, CIF, DDU. 

Q4. How about your delivery time?

A: Generally, it will take 7 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q5. Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures. 

Q6. What is your sample policy?

A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost. 

Q7. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery 

Q8: How do you make our business long-term and good relationship?

A: 1. We keep good quality and competitive price to ensure our customers benefit

    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.