BlueMAX™-Series (SCR Only)

The Nett BlueMAX™-Series is a Selective Catalytic Reduction (SCR) system for controlling nitrogen oxides (NOx) from medium to heavy-duty diesel engines. It also reduces CO and HC through its ammonia slip (oxidation) catalyst. Variants cover off-road (BlueMAX 100), on-road (200), power generation (300), marine (320), gantry cranes (350) and locomotives (420).

Technology

• Main components: SCR catalytic converter, computerised Urea Dosing System (UDS) and urea tank
• Urea dosing calculated from an upstream NOx sensor combined with engine air mass flow and temperature sensors; no engine calibration (mapping) required
• Suitable for OEM and retrofit on mechanically and electronically controlled diesel engines
• 32.5% urea solution metered by a computer-controlled pump and atomised with compressed air
• Standard ammonia slip catalyst on a metallic honeycomb substrate coated with platinum group metals

Key features

• Pre-fitted sensors; robust structure for harsh operating conditions
• Maintenance intervals of 2000 to 5000 hours
• Computerised controller with data logging and 3 customisable alarms; colour status display
• Custom housings to fit any engine configuration; direct-fit designs available
• Can be combined with a diesel particulate filter (DPF) for simultaneous NOx and PM control

Technical data – standard models (max. engine power)

• GL5100: 100 hp / 75 kW
• GL5200: 150 hp / 110 kW
• GL5300: 200 hp / 150 kW
• GL5400: 250 hp / 185 kW
• GL5500: 300 hp / 225 kW
• GL5600: 350 hp / 260 kW
• GL5700: 400 hp / 300 kW
• GL5800: 450 hp / 335 kW
• GL5900: 500 hp / 370 kW

Verification

The BlueMAX 100 (off-road) received US EPA verification for nonroad medium and heavy-duty diesel engines; testing at Southwest Research Institute over NRTC and 8-mode cycles showed reductions of 65% NOx, 12% PM, 92% CO and 99% HC.