535mm 6000W UV Lamp 900952180 Replacement for Alfa Laval Pureballast BWTS
535mm 6000W UV Lamp 9009521 80 Replacement for Alfa Laval Pureballast BWTS | OEM-Compliant UV Ballast Water Treatment

At Fiver Environment Group, we power marine sustainability with precision-engineered UV solutions. Our 535mm 6000W UV Lamp (ALFA LAVAL 900952180 UV LAMP ) is designed to restore peak performance to Alfa Laval Pureballast BWTS, ensuring your vessel meets IMO and USCG discharge standards effortlessly. As a direct, plug-and-play replacement for original Alfa Laval UV lamps, this 6KW powerhouse delivers reliable, chemical-free sterilization of ballast water—protecting marine ecosystems and keeping your operations compliant.
Parameters for Fiver's 535mm 6KW UV Lamp for Ballast Water Treatment

| Lamp Type | Medium Pressure UV Lamp |
| Part Number | 900952180/ 9009521 80 |
| Power | 6KW |
| Total Length | 535mm |
| Arc Length | 400mm |
| Quartz Type | Regular |
| UV System Model | Pureballast BWTS |
| Warranty Time | 3000 Hours |
Key Features for Fiver's 6KW Ballast Water Treatment 900952180 UV Lamp Replacement :
✅ Exact 900952180 Replacement: Perfectly matches the dimensions and performance of original Alfa Laval UV lamp spare sets, ensuring seamless integration with Pureballast systems.
✅ 6KW High-Intensity UV-C Output: Neutralizes 99.99% of invasive organisms, including bacteria, algae, and larvae, even in high-flow or turbid water conditions.
✅ Marine-Grade Durability: Built with reinforced quartz sleeves and corrosion-resistant materials to withstand saltwater, vibration, and extreme temperatures.
✅ Long Lifespan: 3,000+ hours of reliable operation minimize downtime and replacement costs.
Applications:
Ballast Water Sterilization: Achieve IMO D-2 compliance by eliminating harmful aquatic species in ship ballast tanks.
Preventative Maintenance: Replace aging or underperforming lamps in Alfa Laval ballast water treatment systems to avoid compliance risks.
Sustainable Retrofits: Upgrade older systems with minimal downtime using OEM-equivalent UV technology.
Why Choose Fiver’s 6KW 9009521-80 UV Lamp?
OEM-Level Precision:As a trusted manufacturer, we replicate Alfa Laval’s specifications to ensure flawless performance in UV ballast water treatment.
Fiver Environment Group is not a reseller. We are an ISO 9001:2015 certified UV lamp manufacturer with dedicated R&D and production lines for marine
UV sterilization lamps. Each 900952180 lamp is manufactured to the same dimensional and performance specifications as the Alfa Laval original, and every
lamp undergoes a three-stage quality inspection before shipment:
Stage 1: Dimensional verification — total length, arc length, electrode alignment, quartz concentricity.
Stage 2: Electrical test — ignition voltage, steady-state operating current, power factor.
Stage 3: UV-C output measurement — spectrophotometer verification of output at 254 nm against rated specification.
Rigorously Tested Quality: Each lamp undergoes stringent checks for UV output, durability, and electrical safety in marine environments.
Eco-Friendly Compliance: Chemical-free operation aligns with global sustainability goals while protecting marine biodiversity.
Fast Global Shipping: Keep your Pureballast BWTS running smoothly with our reliable logistics and expert support.
We also offer Alfa Laval 594645 82 Quartz Sleeve replacement. contact our sales for more information: Jerry@fiveruvc.com

Frequently Asked Questions — 900952180 UV Lamp
What UV lamp does the Alfa Laval Pureballast BWTS use?
The Alfa Laval Pureballast ballast water treatment system uses a medium-pressure UV lamp with part number 900952180 (also listed as 9009521-80). This is a 535 mm total length, 6,000W lamp with a 400 mm arc length. FiverUVC manufactures a direct, OEM-specification replacement that is dimensionally and electrically identical.
Is the FiverUVC 900952180 lamp a direct replacement — no modifications needed?
Yes. The FiverUVC 900952180 is manufactured to the exact dimensions and electrical specifications of the Alfa Laval original. It is a plug-and-play replacement — no adapters, wiring changes, or control system recalibration is required. Our quality control process verifies dimensional accuracy to ±0.5 mm on every lamp.
How long does the 900952180 UV lamp last?
The FiverUVC 900952180 is rated for 3,000 operating hours with ≤ 30% UV-C output decay. At end-of-life, the lamp still delivers sufficient germicidal output for D-2 compliance. For vessels with typical ballasting patterns (1,000–1,500 hours/year), this translates to 2–3 years of service between replacements.
How much can I save vs. the OEM Alfa Laval lamp?
Our customers typically save 60–80% compared to the OEM Alfa Laval 900952180 lamp, depending on order volume and shipping destination.
We offer competitive pricing for single-unit orders and volume discounts for fleet operators. Contact our sales team for a current quote.
Does this lamp meet IMO D-2 and USCG ballast water discharge standards?
Yes. When installed in a properly maintained Pureballast BWTS and operated within the system's design parameters, the FiverUVC 900952180 delivers sufficient UV dose to satisfy both IMO D-2 (Regulation D-2.2) and US Coast Guard 33 CFR Part 151 Subpart D discharge standards. Our lamps are manufactured under ISO 9001 quality management and carry CE and UL certification for lamp holder.
Can I order a single lamp as a sample first?
Absolutely. Our minimum order quantity is 1 piece. We encourage new customers to order a single lamp for bench testing, dimensional verification, or a trial installation before placing a volume order. Sample orders ship on the same schedule as regular orders.
What is the warranty on this UV lamp?
The FiverUVC 900952180 UV lamp carries a 12-month or 3,000 operating hours warranty (whichever comes first). This covers manufacturing defects and premature output decay beyond the rated specification. Warranty claims are processed within 5 business days with replacement shipment included.
How quickly can you ship to my vessel's port?
We dispatch all in-stock orders within 48 hours of payment confirmation. Delivery times depend on your port location: 2–4 days to major European and Asian ports via express courier, 4–7 days to the Americas and Middle East. We can also deliver to ship chandlers and port agents on your behalf — provide the agent details with your order.







