Alfa Laval 594645 82 Quartz Sleeve Replacement
Alfa Laval 594645 82 Quartz Sleeve Replacement | UV Quartz Sleeve for Alfa Laval 6KW UV Lamp
FiverUVC provides high-quality aftermarket marine BWTS consumables, specializing in OEM-equivalent Alfa Laval 594645 82 Quartz Sleeve. As a standard Quartz Sleeve 594645 82 and professional 594645 82 Replacement part, this Alfa Laval quartz sleeve is custom engineered for Alfa Laval PureBallast UV reactor systems. Serving as a core UV quartz sleeve and dedicated quartz sleeve for UV lamp, it delivers stable UVC light transmission and reliable lamp protection, ensuring vessel ballast water treatment systems fully comply with IMO D-2 discharge standards in complex marine operating conditions.
Parameters of Fiveruvc's Alfa Laval 594645 82 Quartz Sleeve
| Part Number | 594645 82 |
| Material | high-purity synthetic fused quartz glass |
| UV System Model | Pureballast BWTS |
| Compatible Lamps | 9009521-80/900952180; 9007810-80/ 900781080 |
Features of Fiver's Quartz Sleeve 594645-82 Replacement
This 594645 82 quartz sleeve adopts 99.99% high-purity synthetic fused quartz, the industry-standard material for marine UV disinfection equipment. It achieves over 91% UVC transmittance at 254nm germicidal wavelength, with excellent anti-aging, anti-yellowing and thermal shock resistance. The premium quartz material resists long-term high-power UV radiation and seawater corrosion, maintaining consistent UV output without light attenuation. Effectively preventing insufficient disinfection caused by degraded original sleeves, this Alfa Laval 594645 82 Quartz Sleeve sustains stable BWTS working efficiency and avoids marine port inspection failures.
1> 100% OEM Exact Match & Direct Replacement – The Quartz Sleeve 594645 82 strictly follows original Alfa Laval dimensional specifications in length, diameter and sealing structure. It serves as a perfect 594645 82 Replacement solution with plug-and-play installation, requiring no reactor modification, which greatly saves ship maintenance time and operational costs.
2> Professional UV Lamp Protection – As a critical quartz sleeve for UV lamp, it isolates high-temperature UV lamps from corrosive, sediment-laden ballast water. It prevents lamp cracking, thermal damage and mercury leakage caused by seawater impact and temperature fluctuation, extending the service life of Alfa Laval BWTS UV lamps .
3> Excellent Anti-Fouling & Stable Light Transmittance – The ultra-smooth polished surface of this UV quartz sleeve inhibits marine biofouling, algae adhesion and scale deposition. It works perfectly with the reactor’s automatic wiper system to maintain continuous high UVC transmittance during long-term vessel navigation.
4> Strict Marine-Grade Quality Control – Every Alfa Laval quartz sleeve is fully inspected to eliminate bubbles, impurities and microcracks. It meets international marine equipment standards, supporting 24/7 stable operation of shipboard ballast water treatment systems.
5> Complete Set for Fast Installation – Each Alfa Laval 594645 82 Quartz Sleeve package includes matched sealing gaskets, providing a complete replacement kit for dry dock overhaul and routine onboard maintenance.
Application Scope
This 594645 82 Replacement quartz sleeve is exclusively applicable to Alfa Laval PureBallast UV-type ballast water treatment systems that require 6KW UV lamps such as Alfa Laval 9007810 80 & 9009521 80 . It is a standard spare UV quartz sleeve widely stocked by ship owners, ship management companies and marine spare suppliers. Suitable for bulk carriers, container ships, oil tankers, cargo ships and offshore marine vessels sailing global routes.
Why Choose FiverUVC
FiverUVC is a professional manufacturer focused on Alfa Laval BWTS UV spare parts. We supply standardized Alfa Laval 594645 82 Quartz Sleeve with factory-direct prices, sufficient stock and fast global delivery. We provide professional technical support for onsite replacement and system debugging, covering full series of Alfa Laval quartz sleeves and supporting long-term bulk order customization for marine enterprise clients.Want to know how to replacing the quartz sleeve for Alfa Laval BWTS?
Frequently Asked Questions about Alfa Laval 594645 82 Quartz Sleeve
1. What is the Alfa Laval 594645 82 quartz sleeve used for?
The Alfa Laval 594645 82 quartz sleeve is the protective UV-transmitting tube installed in the UV reactor of Alfa Laval PureBallast ballast water treatment systems (BWTS) using 6 kW medium-pressure UV lamps. It isolates the hot UV lamp from corrosive, sediment-laden ballast water while transmitting germicidal UVC light at 254 nm, so the reactor can inactivate organisms and meet the IMO D-2 discharge standard. FiverUVC's 594645 82 replacement is a 100% dimensionally exact, plug-and-play alternative to the original sleeve.
2. Which UV lamps are compatible with quartz sleeve 594645 82?
Quartz sleeve 594645 82 fits the 6 kW Alfa Laval PureBallast UV lamps 9009521 80 (535 mm) and 9007810 80 (545 mm). If your reactor runs a different lamp wattage or length, a different Alfa Laval sleeve part number applies — send us your reactor model (PureBallast 3.1 flow rate or PureBallast 3.0 flow rate) and we will confirm the correct sleeve before you order.
3. How often should the PureBallast quartz sleeve be replaced?
Most operators plan quartz sleeve replacement at each dry dock or major BWTS service interval, and inspect the sleeve at every lamp change. Actual life depends on water turbidity, wiper condition and fouling: a sleeve that is clouded, scratched, scaled or yellowed reduces UVC transmittance below the point where the reactor still delivers rated UV dose. The 99.99% high-purity fused quartz used in our 594645 82 replacement resists solarization and yellowing, keeping transmittance above 91% at 254 nm throughout the service period.
4. What are the symptoms of a degraded or damaged quartz sleeve?
Typical symptoms are: falling UV transmittance or dose readings on the HMI, frequent "low UV dose" or lamp-related alarms, visible clouding, scaling, brown/yellow discoloration, hairline cracks, and water found inside the sleeve or lamp head terminal compartment. Because a fouled or aged sleeve absorbs UVC before it reaches the water, the system may still show lamps ON while disinfection performance quietly drops — a common cause of failed port-state sampling.
5. Can a cracked quartz sleeve cause an ELCB trip or "MCB tripped" alarm in the LDC cabinet?
Yes. A cracked quartz sleeve lets seawater reach the lamp, lamp pins and wiring, creating an earth-leakage (residual current) path that trips the earth leakage circuit breaker and shows up as Alfa Laval alarms such as W126 "MCB tripped in LDC cabinet", W161 LPS communication error or W131 UV system failure. If a breaker trips repeatedly on one lamp position, isolate that pair, power down completely, and inspect the sleeve, lamp and terminal compartment for water ingress before any reset. Note that rapid flickering of the LPS pilot LED with a "lamp open" alarm can also trigger a false W126 alarm without any breaker actually tripping — a classic sign of unsuitable UV lamps rather than a real earth fault.
6. Is FiverUVC's 594645 82 sleeve a 100% direct replacement for the original?
Yes. Our quartz sleeve 594645 82 follows the original Alfa Laval dimensional specification in length, diameter, wall thickness and sealing structure, so it installs plug-and-play with no reactor modification. Each sleeve is supplied with matched sealing gaskets as a complete replacement kit, and every piece is inspected for bubbles, inclusions and microcracks before dispatch.
7. What material and transmittance does the replacement sleeve offer?
The sleeve is made of 99.99% high-purity synthetic fused quartz with UVC transmittance over 91% at the 254 nm germicidal wavelength. The material is selected for marine duty: anti-solarization (no yellowing), thermal-shock resistance for cold ballast water against a hot 6 kW lamp, and resistance to seawater corrosion and automatic wiper abrasion.
8. Does the sleeve work with the PureBallast automatic wiper system?
Yes. The ultra-smooth polished outer surface is designed to work with the reactor's automatic wiper: it inhibits biofouling, algae adhesion and scale deposition, so the sleeve keeps high transmittance during long voyages. Always keep wiper blades in good condition — a worn blade scratches the sleeve and permanently lowers UVC output.
9. How do I replace the quartz sleeve on an Alfa Laval PureBallast reactor?
Replace the sleeve only with the system fully de-energized and the reactor drained and dry: power off and lock out, open the reactor flange, withdraw the UV lamp, remove the old sleeve and gaskets, clean and dry the sleeve seat, install the new sleeve with the supplied gaskets, then reinstall the lamp and verify one-shot ignition with no flickering. FiverUVC provides a step-by-step replacement guide and remote technical support for onboard engineers.
10. Will using an aftermarket sleeve affect IMO or USCG compliance?
The sleeve is a consumable, not a certified system component: what determines compliance is the reactor achieving rated UV dose, which requires a sleeve with correct dimensions and high UVC transmittance. Our 594645 82 replacement matches original geometry and exceeds 91% transmittance at 254 nm, and full traceable inspection is supplied with each batch for class and PSC documentation. Ships should always keep replacement records onboard as evidence of maintenance.
11. What is the MOQ, lead time and shipping?
We support low MOQ (single-sleeve trial orders welcome) with factory-direct pricing that typically saves over 60% versus OEM, sufficient stock for fast dispatch, and worldwide DHL/FedEx/air-freight delivery to major ports. Long-term supply agreements and bulk customization are available for ship owners and fleet managers.
12. How should quartz sleeves be stored onboard?
Store spare sleeves vertically in their original packaging in a dry, vibration-free locker away from deck machinery. Never lay heavy objects on the tube, never handle it with bare greasy hands (fingerprints burn in under UV), and inspect each sleeve for hairline cracks before installation — a micro-cracked sleeve that passes visual check can fail within days in service.
