Alfa Laval 9008373 01 UV Sensor EX2C SUV 20.2 A1 Y2 B1 C 1000W/㎡ for Pureballast EX Series
Alfa Laval 9008373-01 EX2C UV Intensity Sensor SUV 20.2 A1 Y2 B1 C 1000W/㎡ | Calibrated UV Sensor for PureBallast EX Series BWTS
This 9008373 01 EX2C UV intensity sensor (SUV 20.2 A1 Y2 B1 C, 1000W/m²) is genuine OEM explosion-proof monitoring hardware exclusively for Alfa Laval PureBallast 3/3.1 EX Explosion-proof ballast water treatment systems. Unlike standard non-EX UV sensors for general ships, this model features full ATEX II 2G IIC T4 & IECEx intrinsic safety certification, specially designed for oil, chemical and LNG tankers operating in Zone 1 flammable hazardous engine spaces.
As the core UV dosage feedback component, it transmits real-time 0–1000 W/m² UV intensity data to the EX control cabinet. The PLC relies on its readings to adjust UV lamp power, limit treatment flow, trigger CIP reminders and safety alarms. Without this certified EX sensor, PureBallast EX units will trigger persistent non-compliant warnings, restrict full rated flow, and expose tankers to port state detention and classification survey failures.
Product Parameters for Fiver's Alfa Laval UV Sensor 9008373 01 Replacement
| Part Number | QT201-50/ 9008373 01 |
| Material | SUS316L |
| UV Reactor | Alfa Laval PureBallast 3/3.1 EX Series |
| Model | SUV 20.2 Y2 C 40° 1000 W/m² |
3. Core System Functions for Hazardous Tankers
3.1 Intrinsically Safe UV Dosage Monitoring
Its sealed EX circuit eliminates spark risks in flammable vapor zones. Real-time UV transmittance data calculates disinfection dosage to meet USCG 772 W/m² and IMO 252 W/m² minimum intensity thresholds, the legal baseline for ballast discharge.
3.2 Intelligent UV Power Optimization
Based on sensor feedback, the EX lamp drive cabinet automatically adjusts lamp output between 50–100%: high UV in clear seawater cuts power to extend lamp life; low UV in turbid coastal water boosts full power to maintain disinfection efficiency. All adjustments comply with Zone1 electrical safety limits.
3.3 Compliance Flow Control
Paired with EX flow meter and control valve, it restricts maximum treatment flow automatically: USCG mode limits flow under 772 W/m² UVI, IMO mode caps flow below 252 W/m², preventing under-dosed ballast discharge from hazardous cargo vessels.
3.4 Predictive CIP & Fault Alert
Declining UV readings signal quartz sleeve scaling, prompting the 30-hour mandatory CIP cycle reminder to avoid type approval invalidation. Broken lamps or sleeve damage will instantly lower detected UVI, triggering alarms and reducing system flow, with all fault logs stored for 24 months for PSC audits.
4. Exclusive EX2C Product Advantages
Full Hazard Zone Certification: Only this OEM EX sensor meets tanker Zone1 safety standards; ordinary non-EX sensors cannot be installed on PureBallast EX units and void vessel BWMS certification.
Plug-and-Play Factory Calibration: Direct drop-in replacement without on-site calibration, cutting drydock and at-sea maintenance downtime and third-party calibration costs.
Anti-Corrosion EX Construction: Hermetic housing and hardened lens resist salt spray, hydrocarbon vapor and repeated acidic CIP cycles for longer service life.
Class Society Approved Spare: Recognized by DNV-GL, ABS, CCS, LR, BV for annual BWTS surveys, listed as mandatory spare on tanker safety inventories.
5. Compatible PureBallast EX Models
Fits all PureBallast 3.1 EX USCG & USCG HP series: 250, 300, 500, 600, 750, 1000, 1500, 2000, 3000 TRC reactors, matching official system flow chart 9025598 / 9025599 EX drawings.
6. Compliance & Operational Value
This sensor fully satisfies USCG 46 CFR type approval, IMO MEPC.300(72) BWMS Code and global marine hazardous area electrical regulations. Continuous UV intensity logging provides traceable digital records required by all international port inspections. Its explosion-proof design eliminates ignition hazards in pump rooms and engine roufs, complying with mandatory safety rules for crude, chemical and gas carriers.
Using uncertified aftermarket EX sensors carries severe risks: permanent low UV alarms limiting throughput, invalid BWMS type approval leading to vessel detention, unregulated UV dosage failing PSC sampling, accelerated UV lamp wear, and corrosion-induced frequent sensor breakdowns.
7. Application Scenarios
Newbuilding & retrofit PureBallast EX systems on crude, chemical, LPG/LNG tankers
Marine chandlers stocking EX-rated ballast water spare parts
Vessel drydock overhauls, annual BWTS inspection and routine replacement
Emergency at-sea sensor failure replacement for transoceanic hazardous cargo ships
Product Summary
The Alfa Laval 9008373-01 EX2C UV Intensity Sensor SUV 20.2 A1 Y2 B1 C (1000W/㎡) is the factory-calibrated, ATEX/IECEx Zone1 certified OEM UV detector exclusively for PureBallast EX ballast water treatment systems. Purpose-built for hazardous cargo tankers, it delivers accurate real-time UV intensity data to enable automatic power tuning, compliant flow regulation and predictive maintenance tracking. The plug-and-play design removes complex on-site calibration work, reduces vessel downtime, and maintains full USCG, IMO and classification society compliance. It is a mandatory critical spare part for all ships equipped with PureBallast EX series BWTS worldwide.
