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SCR catalyst is suitable for NOx post-treatment of diesel engines. The NO and NO2 in the exhaust gas are reduced to N2 after urea is hydrolyzed to NH3, effectively removing NOx under oxygen-enriched conditions. We provide vanadium-based, iron-based, and copper-based SCR products with excellent low-temperature activity and stability, meeting Euro IV to Euro VI emission standards. The catalyst coating can be applied to both metallic and ceramic substrates.
4NH3 + 4NO + O2 → 4N2 + 6H2O
8NH3 + 6NO2 → 7N2 + 12H2O
2NH3 + NO + NO2 → 2N2 + 3H2O
UREA HYDROLYSIS:CO(NH2)2 + H2O → CO2 + 2NH3
The SCR system utilizes an injection system with compressed air assistance. The urea solution supply pump is equipped with a built-in control device to manage the internal pump and solenoid valve according to established procedures.
| Type | Diameter (mm) | Height (mm) | Details |
|---|---|---|---|
| DPF | Φ143.8 | 203 | Standard |
| Φ190.5 | 152.4 / 203 / 254 | Multiple Sizes | |
| Φ241 | 152.4 / 203 / 254 | Heavy Duty | |
| Φ305 | 203 / 254 / 305 | Industrial | |
| Substrate | Φ143.8 | 101.6 / 152.4 | Ceramic Core |
| Φ190.5 | 76.2 / 101.6 / 152.4 | Ceramic Core | |
| Φ330 | 101.6 / 152.4 | Large Core |
• Euro 4, 5 catalysts (V-SCR, ASC)
• Euro 6 catalysts (DOC, Cu-SCR/Fe-SCR, CDPF, ASC)
• Non-road T4 catalysts.
• Euro III exhaust gas purification (DOC, CDPF)
• Euro 4/5 aftermarket products (V-SCR, TWC)
• Overseas partner products (CDPF).
• Engineering equipment
• Farm vehicles
• Specialized catalytic converters (DOC, CDPF, SCR).
• Industrial denitration catalysts
• Industrial VOCs catalysts
• Customized solutions.


Our facility covers a construction area of 30,000 m² with an annual production capacity of up to 6 million liters. We produce a wide range of products including DOC, DPF, SCR, and other customized catalyst products for diesel exhaust systems.
The SCR (Selective Catalytic Reduction) system is designed to reduce nitrogen oxides (NOx) in diesel engine exhaust by converting them into harmless nitrogen and water vapor using a urea solution.
Our catalytic products are designed to meet a wide range of emission standards, from Euro IV all the way up to Euro VI.
We offer catalyst coatings on both metallic and ceramic (cordierite) based substrates, depending on the specific application and customer requirements.
Yes, we provide customization services for various sizes and specifications to ensure the product fits your specific exhaust system perfectly.
Our standard lead time for production is between 7 to 15 days, supported by an annual capacity of 6 million liters.
Our products are manufactured under strict quality controls and hold certifications including ISO9001, CE, RoHS, and CCC.
GLX Auto Parts