Desmi CompactClean Quartz Sleeve 721774 Replacement
Desmi CompactClean Quartz Sleeve 721774 Replacement – QUARTZ TUBE 585X44X2.0 MM SQ
If you maintain or operate Desmi CompactClean ballast water management systems (BWMS), the 721774 quartz tube is an irreplaceable core spare component for your UV disinfection reactor. This replacement quartz sleeve is manufactured to the exact OEM dimension spec: 585mm length, 44mm outer diameter, 2.0mm wall thickness square cut tube, engineered exclusively to fit Desmi CompactClean UV reactors without modification.
Marine UV reactors rely entirely on intact quartz sleeves to shield medium-pressure UV lamps from raw seawater while delivering consistent 254nm germicidal UV transmission. Cracked, fogged or aged quartz tubing cuts UV output drastically, failing IMO D-2 and USCG ballast water discharge standards. Our Desmi 721774 replacement quartz sleeve eliminates downtime, restores full disinfection performance, and avoids costly port detention from non-compliant ballast water treatment.
Parameters for FiverUltraviolet's Desmi CompactClean quartz tube 585X44X2.0 MM SQ
Part Number | 721774 |
Material | High-purity synthetic fused quartz glass |
UV System Model | ComoactClean BWTS |
Compatible Lamps | 721667 |
Key Performance Advantages for Marine BWTS
1> 1:1 OEM Dimensional Precision, Direct Drop-In Fit
Every 721774 quartz sleeve is precisely mede to 585×44×2.0mm with square finished ends. No grinding, trimming or custom fitting required during on-vessel replacement. It aligns perfectly with the CompactClean reactor’s lamp holders, centering cylinders and sealing manifolds, preventing water leakage into lamp chambers that burns out UV lamps prematurely. Ship engineers can swap old sleeves in under 30 minutes with standard maintenance tool kits.
2> Superior High-Purity Quartz for Stable UV Disinfection
We use bubble-free, inclusion-free fused silica instead of low-grade natural quartz common in cheap aftermarket spares. The high silica composition maintains ultra-high UV light penetration even after thousands of hours of continuous UV exposure and seawater scaling cycles. Fogging, yellowing and UV attenuation are minimized, so your CompactClean system sustains required UV dosage to meet global maritime discharge regulations year-round.
3> Marine-Grade Chemical & Thermal Resistance
Seawater, brine, mineral scaling and periodic CIP chemical cleaning put extreme stress on BWTS quartz components. This 721774 quartz tube resists corrosion from saltwater, acidic cleaning agents and temperature swings during ballast/deballast cycles. The 2.0mm optimized wall thickness balances shock resistance and light transmittance, standing up to vessel engine vibration, rough sea transit and routine reactor cleaning without cracking.
4> Reduce Vessel Maintenance & Compliance Risks
Clouded or cracked quartz sleeves drop UV output, triggering system fault alarms and failing port authority ballast water testing. Replacing worn tubing with our OEM-spec 721774 quartz sleeve restores full disinfection efficiency, keeps your vessel IMO D-2 / USCG compliant, and extends the service life of expensive medium-pressure UV lamps. Vessel operators cut long-term spare part overhead vs buying original factory parts direct from Desmi while retaining full system performance.
5> Perfect Compatibility
This replacement quartz tube 721774 is designated as the standard spare quartz sleeve for all Desmi CompactClean BWTS NEX and IEX reactor models listed in official Desmi spare parts catalogs. It works alongside matching CompactClean consumables including:
722777 PTFE centering cylinder
720877 Viton U-manchet seals
720878 flat sealing gaskets
Desmi 4KW medium-pressure UV lamps 721667
For shipyards, marine service companies and vessel owners stocking Desmi BWTS spares, this quartz sleeve is a mandatory inventory item for planned and emergency UV reactor overhauls.
Installation & Maintenance Tips
Always power down the CompactClean control panel and drain the UV reactor before sleeve replacement
Handle the 721774 quartz tube with lint-free cotton gloves to avoid oil residue that blocks UV light
Inspect and replace all Viton gaskets/O-rings during sleeve swap to prevent seawater ingress
Clean sleeve exterior with ethanol and non-abrasive cloths to remove marine scale buildup
Store spare quartz sleeves vertically in shock-absorbent wooden crates to avoid transit breakage
Why Choose Our Desmi 721774 Quartz Sleeve Over Generic Alternatives
Many generic quartz tubes for Desmi BWTS skip precision square-end polishing or use low-purity quartz with hidden air bubbles. These cheap substitutes cause uneven sealing, UV loss and frequent premature failure. Our 721774 replacement quartz sleeve stands out:
Fully cross-referenced against Desmi official spare part drawings and dimension charts
Batch tested for UV transmittance, wall thickness consistency and structural integrity before shipping
Secure foam-lined wooden export packaging to eliminate breakage during ocean freight to global ports
Bulk order discounts for marine service fleets and shipyard long-term spare stock agreements
Fast lead times for emergency vessel breakdown maintenance orders
Frequently Asked Questions
Q: Is this quartz sleeve a direct replacement for OEM Desmi part 721774?
A: Yes. The 585×44×2.0mm square cut dimensions match the original factory spec exactly, designed for seamless installation in Desmi CompactClean UV reactors without any modifications.
Q: Will this sleeve help my BWTS pass IMO D-2 ballast water inspections?
A: When paired with properly functioning Desmi medium-pressure UV lamps, this high-transmittance quartz tube delivers the full UV dosage required to meet all international ballast water treatment regulatory standards.
Q: What’s the typical service life of this replacement quartz tube onboard a vessel?
A: With regular CIP cleaning and minimal heavy scaling, the sleeve delivers consistent performance for 12–24 months of continuous ballast water operations, depending on local seawater salinity and mineral content.
Contact & Order Information
For bulk spare part quotations, sample testing or technical dimension verification for Desmi CompactClean quartz sleeve 721774, reach our marine UV spare parts specialist via email jerry@fiveruvc.com. We support global shipping to all major maritime ports with complete commercial invoices and material certification documents for vessel spare part customs clearance.
