Desmi Quartz Tube 720875 750X44X2 .0 MM SQ

Product Features:
1> 100% Compatible with Desmi Quartz Sleeve 720875
2> Made from High-purity Synthetic Fused Quartz Glass SiO₂ ≥ 99.99%.
3> Premium UVC Transmittance
4> Cost Effective, saving over 60%.
5> Low MOQ Requirements.
6> Fast dispatch, worldwide shipping

Product Details

Product Tags

Desmi Quartz Tube 720875 750X44X2.0 MM SQ | Direct Replacement Sleeve for DESMI 6KW SQ UV Lamp 721666

Desmi Quartz Tube 720875 750X44X2.0 MM SQ | Direct Replacement Sleeve for DESMI 6KW SQ UV Lamp 721666.jpg


Our aftermarket Desmi Quartz Tube 720875 (750X44X2.0 MM SQ) is a precision-engineered drop-in replacement quartz sleeve exclusively designed to match the original OEM specification of Desmi Ocean Guard CompactClean UV ballast water treatment systems, perfectly paired with DESMI 6KW SQ UV Lamp part number 721666. As the core protective UV component inside Desmi BWTS UV reactors, this marine-grade quartz tube isolates high-power medium-pressure UV lamps from corrosive seawater while delivering industry-leading UVC light transmittance to sustain consistent disinfection performance. Manufactured to identical dimensional, sealing and mounting standards as the factory original 720875 quartz sleeve, it eliminates reactor modification work, shortens drydock repair downtime, and keeps your vessel’s ballast water treatment unit fully compliant with IMO D-2 and USCG discharge standards for bulk carriers, container ships, oil tankers and offshore supply vessels worldwide.



Product Specification for Fiver's  DESMI CompactClean BWTS Quartz Sleeve


 Part Number

720875

Material

 High-purity synthetic fused quartz glass

UV System Model

ComoactClean BWTS

Compatible Lamps

 721666




Product Features for Fiver's Desmi Quartz Sleeve 720875

1. 100% Exact OEM Interchangeable, Plug-and-Play Installation

Our Desmi quartz tube 720875 strictly replicates the original factory dimensional tolerance, wall thickness, end sealing geometry and reactor mounting positions of the standard Desmi CompactClean UV sleeve. No cutting, pipeline adjustment or reactor rework is required during onboard replacement. Supplied as a complete set with matched silicone gaskets and sealing accessories (same as OEM configuration), it fully satisfies emergency shipboard repair and scheduled drydock maintenance demands, enabling fast equipment commissioning and rapid vessel return to global navigation routes.


2. Ultra-High UVC Transmittance for Stable IMO-Compliant Disinfection

Constructed from premium synthetic fused quartz with 99.99% SiO₂ purity, this 750×44×2.0mm SQ quartz tube delivers exceptional UVC light penetration without wavelength attenuation. Unlike aged, yellowed original sleeves that cause insufficient UV dosage and system alarm triggers, our quartz tube maintains consistent light transmission long-term, ensuring the Desmi CompactClean BWTS maintains the minimum UV dose required to eliminate invasive marine organisms, continuously meeting strict IMO D-2 and USCG ballast water discharge regulations across all global sailing waters (fresh, brackish and high-salinity seawater).


3. Full UV Lamp Protection Against Marine Thermal Shock & Corrosion

Specially optimized for 6KW high-power medium-pressure UV lamp 721666 operation, the uniform 2.0mm wall thickness creates a complete isolation barrier between the overheated UV lamp and corrosive seawater. It effectively prevents lamp cracking, mercury leakage and premature burnout caused by drastic seawater temperature fluctuations, cold water impact and long-duration continuous marine operation. This critical protective function drastically reduces unexpected UV reactor breakdown risks during long ocean voyages.


4. Marine-Grade Anti-Fouling & Thermal Shock Resistance

The ultra-smooth polished quartz surface resists marine scaling, sediment adhesion and biological biofouling, perfectly cooperating with the CompactClean reactor’s automatic wiper cleaning system to cut down manual cleaning frequency. Balanced wall thickness delivers outstanding thermal shock resistance, adapting seamlessly to extreme variable seawater temperatures from polar cold zones to tropical equatorial waters, eliminating crack risks during system startup and shutdown cycles.


5. Anti-UV Aging, Long Service Life & Lower Vessel OPEX

Exclusive anti-yellowing, anti-photoaging quartz material formula prevents gradual light transmittance degradation under long-term intense 6KW UV irradiation. Compared with generic low-purity quartz alternatives, our Desmi 720875 quartz tube extends service cycles, slashes frequent spare part replacement frequency, and significantly lowers ship maintenance labor and inventory costs for global shipping fleets.


6. Zero Defect Strict Marine Quality Inspection

Every single Desmi quartz tube 720875 undergoes full quality testing before shipment: bubble-free inspection, micro-crack detection, uniform wall thickness verification and UVC transmittance calibration. All production standards align with marine BWTS operational specifications, making this replacement sleeve a reliable spare part for all sizes of Desmi CompactClean UV disinfection reactors on commercial vessels.


7. Cost-Effective Supply & Global Fast Logistics

Our aftermarket Desmi quartz sleeve delivers over 60% cost savings versus genuine OEM spare parts without compromising performance. Flexible low MOQ support suits small shipowners and large fleet procurement demands, paired with fast order dispatch and worldwide door-to-door shipping via DHL, FedEx, sea freight for port-side delivery.




Why Choose Our Desmi 720875 Quartz Tube for Your CompactClean BWTS?


1> Perfect matching with DESMI 6KW SQ UV lamp 721666, zero compatibility failures during field installation

2> High-purity marine quartz material designed exclusively for continuous seawater UV disinfection

3> Complete installation accessory kit included, no extra gasket purchasing required

4> Rigorous marine industry quality control to avoid reactor leakages and UV efficiency loss

5> Dedicated technical support for Desmi BWTS UV lamp & quartz sleeve replacement guidance

6> In-stock inventory for urgent vessel emergency maintenance orders.



Maintenance & Replacement Guidelines 

  • Inspect every routine BWTS service cycle and during DESMI 6KW UV lamp 721666 replacement.

  • Wipe and clean the quartz tube surface regularly to remove marine fouling, calcium scaling and organic sediment deposits.


Replacement Triggers


  • Replace your Desmi 720875 quartz tube immediately if any of the following appear:

  • Visible scratches, micro-cracks, chips or surface clouding

  • Yellowing or permanent light transmittance degradation

  • Scaling or biofouling that cannot be fully removed via wiper or manual cleaning

  • UV sensor alarms indicating insufficient UV dosage output






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