Catalyst Inspection & Replacement
Inspection and Replacement Planning for SCR, Oxicats, and DPF
Solutions
Inspection and Replacement Planning for SCR, Oxicats, and DPF
Extend System Life. Maintain Compliance. Avoid Downtime.
Your emissions control system works hard to keep your operations clean and compliant but like any high-performance equipment, it requires regular inspection and maintenance to continue performing at its best.
We provide clear, application-specific inspection and replacement schedules for all critical emissions system components including SCR Catalysts, Oxidation Catalysts (Oxicats), and Diesel Particulate Filters (DPFs) so you can stay ahead of performance issues and regulatory risks.
Why Routine Inspections Matter
- Reduced NOx reduction or PM filtration efficiency
- Non-compliance with emissions standards or Tier 4 limits
- Higher backpressure, engine inefficiencies, or system faults
- Unplanned downtime and costly emergency repairs
Recommended Inspection & Replacement Intervals
SCR Catalyst Elements
- Inspection: Every 6,000–8,000 engine hours
- Replacement: Typically every 16,000–20,000 hours, depending on fuel quality and exhaust conditions
- Key Signs of Wear: NOx breakthrough, uneven temperature profiles, increased ammonia slip
Oxidation Catalysts (Oxicats)
- Inspection: Every 6,000–8,000 hours
- Replacement: Often effective up to 20,000+ hours with proper fuel/oil control
- Key Signs of Wear: Elevated CO/HC emissions
Diesel Particulate Filters (DPFs)
- Continuous monitoring of pressure drop through PLC program
*Exact intervals may vary depending on engine type, duty cycle, fuel quality, and system configuration. AERINOX provides customized maintenance guidance for every installation.
How We Support You
- Visual and thermal inspection tools
- Backpressure monitoring and data analysis
- DPF cleaning service recommendations
- Maintenance log templates for regulatory readiness
- Genuine replacement parts shipped quickly from our U.S. warehouse
- On-site service options and technician support for inspections and element swaps
Stay Ahead of Emissions Risk
Preventive maintenance is more than good practice, it’s a compliance tool. Every project includes element inspection and replacement schedules so your team always knows when to act, what to inspect, and what to track.
Let us help you reduce downtime, maintain consistent performance, and extend the life of your emissions control system.