435mm 3KW UV Lamp Set 57936798 Replacement for Alfa Laval Ballast Water Treatment System
435mm 3KW UV Lamp Set (579367-98 Replacement) for Alfa Laval Ballast Water Treatment Systems

At We Fiver Environment Group, we specialize in delivering high-performance UV lamp solutions for marine and industrial applications. Our 435mm 3KW UV Lamp Set (Part Number: 57936798/579367 98) is a direct replacement for the Alfa Laval Ballast Water Treatment System, ensuring seamless compatibility and reliable operation for vessel ballast water treatment. Designed to meet the demands of modern maritime compliance, this 3KW hg vapor lamp combines advanced engineering with durable materials to support efficient water disinfection and regulatory adherence
Parameters of Fiver's 435mm 3KW UV Lamp Set 579367 98:
| Lamp Type | Medium Pressure UV Lamp |
| Part Number | 579367-98/57936798 |
| Power | 3KW |
| Total Length | 435mm |
| Quartz Type | Regular |
| UV System Model | Pureballast BWTS |
| Warranty Time | 3000 Hours |
Key Features & Benefits of Our 3KW HG Vapor Lamp 579367-98
Direct Fit: Precision-designed replacement for Alfa Laval 3KW UV Lamp Sets.
Regulatory Compliance: Supports adherence to the Ballast Water Convention and IMO guidelines.
Durable & Efficient: High-quality mercury vapor technology for extended lifespan and reduced maintenance.
Proven Performance: Optimized for vessel ballast water treatment, ensuring safe water discharge.
Easy Integration: Compatible with existing Alfa Laval systems, minimizing retrofitting costs.
Ballast Water Treatment System Working Principle
UV-based systems, like the Alfa Laval Ballast Water Treatment System, operate by exposing water to germicidal UV-C light as it flows through the chamber. This process inactivates microorganisms, preventing their spread and ensuring discharge meets Ballast Water Convention requirements. Our 579367 98 Replacement UV Lamp Set enhances this process with superior energy efficiency and consistent output, even in fluctuating water conditions.
Why Ballast Water Treatment Matters
Marine ecosystems face significant risks from invasive aquatic species transported via ship ballast water. The International Maritime Organization’s Ballast Water Convention mandates stringent treatment standards to prevent such environmental disruptions. Our Alfa Laval 3KW UV Lamp Set replacement plays a critical role in helping vessels comply with these global regulations by effectively neutralizing harmful microorganisms and pathogens in ballast water.
Advanced UV Technology for Optimal Performance
The 3KW hg vapor lamp is the core of our system, emitting high-intensity ultraviolet light to disrupt the DNA of bacteria, viruses, and plankton. The 435mm lamp length ensures maximum exposure, while its robust quartz construction withstands harsh marine conditions. This replacement set is engineered to match the original specifications of Alfa Laval systems, guaranteeing minimal downtime and hassle-free installation.
Why Choose We Fiver’s 435mm 3KW UV Lamp 57936798?
Ships rely on dependable ballast water management to avoid penalties and protect ecosystems. Our 57936798 UV Lamp Set offers a cost-effective, high-performance alternative to original equipment, without compromising on quality. Whether you’re upgrading your system or maintaining operational efficiency, Fiver’s solution ensures your ballast water treatment system working principle remains robust and future-ready.
Upgrade your vessel’s compliance strategy with We Fiver’s trusted UV lamp technology. Explore our full range of marine-grade solutions at www.fiveruvc.com and safeguard your operations today.

ABOUT US

Established in 1996, Fiver Environment Group Co., Ltd. is a distinguished manufacturer specializing in a comprehensive range of UV ballasts and lamps, with power outputs spanning from 4 to 60,000 watts. Our operations are supported by over 20,000 square meters of advanced production workshops. Underscoring our commitment to innovation and quality, we hold more than 70 invention patents and are certified with ISO9001, CE, and UL. FIVER's products are widely utilized across diverse sectors, including the water treatment, air purification, fume purification, waste gas treatment, and industrial curing systems industries.
Frequently Asked Questions — 435mm 3KW UV Lamp Set (57936798 Replacement)
Q1. What is the 57936798 UV lamp set, and which systems does it fit?
The 57936798 (579367-98) is a 435mm, 3KW medium-pressure mercury vapor UV lamp set that serves as a direct replacement for Alfa Laval PureBallast 3.0 ballast water treatment systems. It matches the original lamp's electrical and dimensional specifications, so it installs into the existing lamp holders and quartz sleeves without modification.
Q2. Is Fiver's 57936798 a 100% direct replacement for the Alfa Laval original lamp?
Yes. Fiver's 435mm 3KW UV lamp is engineered as a drop-in replacement for Alfa Laval part number 579367-98/57936798, matching the original's 3KW power rating, 435mm total length, and ignition characteristics. The Alfa Laval lamp power supply (LPS) ignites and runs the lamp normally — no LPS adjustment, rewiring, or retrofitting is required.
Q3. How long does the 57936798 3KW UV lamp last, and when should I replace it?
Fiver's 57936798 replacement lamp is rated for up to 3,000 operating hours. In practice, replace the lamp when running hours approach the rated life, when UV dose readings drop toward the system's alarm threshold, or when the PureBallast HMI reports a "lamp fail" or "lamp open" alarm for that position. Always replace lamps in pairs, as Alfa Laval lamp pairs are powered and monitored as a set.
Q4. What alarms can a failed or incompatible 3KW UV lamp cause on a PureBallast system?
A failing 3KW UV lamp typically triggers "lamp open" or "lamp fail" alarms. If a lamp cannot ignite, the LPS repeatedly retries ignition — the pilot lights flicker rapidly, and the system may raise W126 (MCB tripped in LDC cabinet), W161 (LPS communication error), and W131 (UV system failure – too many failed lamps), followed by automatic shutdown. Replacing the faulty lamp pair clears these alarms without any electrical repair.
Q5. Will an aftermarket lamp work reliably with the Alfa Laval LPS (lamp power supply)?
It will if the lamp is built to the original's ignition voltage, arc characteristics, and electrode specifications — which is exactly how Fiver's 57936798 is engineered. Cases of new lamps failing to ignite with rapid LPS flickering almost always involve lamps not matched to the LPS electrical profile. Fiver has manufactured UV lamps and ballasts since 1996 (ISO9001, CE, UL certified, 70+ patents), and each 3KW lamp set is ignition-tested against the PureBallast LPS load profile before dispatch.
Q6. Why does Alfa Laval use a medium-pressure 3KW mercury vapor lamp in PureBallast 3.0?
The PureBallast 3.0 reactor uses medium-pressure mercury vapor UV lamps because their high-intensity polychromatic UV output delivers the germicidal dose needed to inactivate organisms across a wide range of water transmittance and flow conditions. The 3KW, 435mm format provides the required dose per lamp while keeping the reactor compact. Fiver's replacement uses the same medium-pressure hg vapor technology and high-purity quartz envelope to preserve this performance.
Q7. Do you sell the matching quartz sleeves and other PureBallast spare parts?
Yes. Alongside the 57936798 lamp set, Fiver supplies the matching quartz sleeves and other PureBallast consumables. Sourcing lamps and sleeves together is recommended: a scratched or fouled sleeve reduces UV transmittance, lowering the delivered dose and shortening effective lamp life.
Q8. What is the MOQ, lead time, and warranty?
We keep a low minimum order quantity and dispatch quickly from stock. The 57936798 lamp set carries a 3,000-hour warranty. Contact our sales team with your vessel's system details for a same-day quotation and dispatch schedule.
Q9. How do I install the 57936798 lamp set safely?
Installation follows the standard Alfa Laval lamp-change procedure: fully power down the BWTS and allow lamps to cool, open the reactor, inspect the quartz sleeve for cracks or fouling, seat the new lamp firmly in its holder, verify cable connections at the terminal compartment, then close up and restart. Never handle the quartz envelope with bare hands — skin oils cause hot spots that shorten lamp life. Always follow your system manual's lockout/tagout procedure. You can also refers to our Step to step guide on how to replace the UV lamp & quartz sleeve for Alfa Laval Pureballast system









