DIESEL - COMPRESSION IGNITION (CI)
Emission Control for
Diesel
Generators
Multi-pollutant aftertreatment systems for stationary diesel generators. EPA and CARB verified. Engineered to exceed Tier 4 requirements and site-specific permitting for data centers, critical power, and industrial applications.
99%
NOₓ Reduction
99%
PM Reduction
EPA + CARB
Verified Systems
Custom
Engineered to Application
SOLUTION SELECTION
Choosing the right system for your application
Solution selection depends on your emissions target, permitting jurisdiction, operating duty cycle, and integration constraints. Use this table as a starting point, NETT engineers will confirm the right combination.
| System | NOx | CO | HC | PM | Regen | Verified |
|---|---|---|---|---|---|---|
| DOC SystemsOxidation Catalyst | — | ✓ | ✓ | — | — | EPA |
| GreenTRAP™ 300Diesel Particulate Filter | — | ✓ | ✓ | ✓ | Passive | CARB |
| BlueMAX™ 300SCR Only | ✓ | ✓ | ✓ | — | — | EPA |
| BlueMAX™ PLUS-300SCR + Passive DPF | ✓ | ✓ | ✓ | ✓ | Passive | EPA |
| BlueMAX™ VOLT-300SCR + Active DPF | ✓ | ✓ | ✓ | ✓ | Active | — |
| BlueMAX™ NOVA-300SCR + Active DPF + DOC | ✓ | ✓ | ✓ | ✓ | Active | CARB |
Not sure where your application lands? Our engineering team will review your generator specs, fuel type, and permitting jurisdiction to confirm the right configuration. Reach out to receive a system recommendation.
DIESEL PRODUCTS
Emission Control Systems
All systems are custom engineered to your engine specifications, site constraints, and permitting requirements. No off-the-shelf sizing.
BlueMAX™ 300
Advanced SCR system for NOₓ reduction from medium to heavy-duty diesel generators. Precise urea dosing with real time NOₓ monitoring. No engine recalibration required.
NOₓ 99%
CO 97%
HC 95%
BlueMAX™ PLUS-300
Combined SCR and passive DPF for simultaneous NOₓ and PM reduction. Designed for standby, prime power, peak shaving, and continuous-duty applications. Compact insulated design.
NOₓ 99%
CO 98%
HC 97%
PM 98%
DIESEL | SCR + ACTIVE DPF (Electric)
BlueMAX™ VOLT-300
SCR and active DPF with ECU-controlled regeneration. Active regeneration supports low-load standby operation. The critical performance requirement for power generation backup generators.
NOₓ 99%
CO 96%
HC 94%
HAPs 94%
PM 98%
DIESEL | SCR + ACTIVE DOC/DPF (HCI Injection)
BlueMAX™ NOVA-300
Complete multi-pollutant system combining SCR, active DPF, and DOC. The highest compliance solution for mission-critical power generation installations and strict permitting jurisdictions.
NOₓ 99%
CO 97%
HC 95%
HAPs 95%
PM 98%
DIESEL | DOC + SILENCER (Removable Cores)
DOC Systems
Diesel oxidation catalyst for CO, HC, and HAP reduction. Low-pressure-drop design. Used as a standalone device or upstream thermal conditioning stage in multi-component systems.
CO 98%
HC 94%
HAP's 94%
GreenTRAP™
Passive and active DPF for ultra low PM emissions. For applications requiring PM compliance without active NOₓ control. Multiple configurations available for standby, prime power, and continuous-duty applications.
CO 97%
HC 95%
HAP's 95%
PM 99%
Generator Silencer System
Critical, super-critical, and hospital-grade silencers in disc, cylindrical, and rectangular configurations. Sized to your engine exhaust flow and site noise requirements.
Critical Grade
Super Critical
Hospital+
ENGINEERING CONSIDERATIONS
What your system must account for
Regulatory & Permitting
EPA compliance, CARB requirements, and local air quality district rules. These are all addressed in system design and documentation included with every unit.
Low-Load Standby Operation
Generators run at low load during weekly testing. Low exhaust temperatures affect DPF regeneration and DEF dosing. Active regeneration systems are designed for this profile.
Space, Weight & Access
Aftertreatment equipment requires structural support, maintenance clearance, and site-specific integration. Engineered layouts are provided for every installation.
Backpressure Management
Every system is designed to stay within OEM engine backpressure limits. CFD-modelled exhaust flow ensures catalyst and silencer performance without engine impact.
DEF Dosing & Heating
Airless DEF injection eliminates crystallization risk. Heated lines(24VDC, active below -6°C) and dual heating strategies ensure reliable dosing in all climates.
Controls & Monitoring
HMI display, real-time NOₓ monitoring, alarm outputs, datalogging, MODBUS, and BMS integration available for mission-critical installations.
Verified & Certified Systems
U.S. EPA
Verified Emission Control Strategy
Verified Emission Control Strategy. Cite directly in permit applications
CARB
Level 3+ Verified
California Air Resources Board. The most stringent standard in North America
ISO 9001:2015
Quality Management Certified
Controlled quality processes across engineering, manufacturing, and delivery
CWB / CSA W47.1
Certified Steel Fabrication
Canadian Welding Bureau certified. Structural quality for industrial applications.
Ready to Spec Your System?
Every installation is custom. Tell us your engine, site, and compliance requirements. Our engineers will scope the right solution.
- Free Application Review
- EPA / CARB Docs Included
- Custom Installation Manuals
- BMS / MODBUS Integration