
Diesel particulate filter is also called DPF, is the key component of exhaust system of diesel engine vehicle or machine. It is a kind of wall-flow honeycomb ceramics, made of cordierite ceramics, with features of strong mechanical strength, high open porosity, high soften temperature, low thermal expansivity etc. DPF monolith is an idea component for diesel soot filter, it has an excellent performance in filtering the fine particulates in the diesel engine exhaust. Cordierite DPF is the most used component in the diesel exhaust treatment.

Diesel particulate filter is a setting to reduce emission granule by filtrating which is set in exhaust system in diesel. Its efficiency for carbon particulates filtration is more than 90%. Part of dissoluble organic composition (SOF) (especially high boiling point) may be trapped. So reduce the pollution to the environment. It would be a great help to solve the problem of air pollution in city.
Cordierite-based Diesel Particulate Filter Features:
*Low thermal expansion
*High filter specific surface area
*Low pressure drop
*Long-term durability performance
*High soot removal

Item | Technical index | |
Chemical Composition | SiO2 | 50.9 ± 1% |
AL2O3 | 35.2 ± 1% | |
MgO | 13.9 ± 1% | |
Physical Properties | Compression Strength in normal temperature | ≥ 10Mpa |
Thermal expansion coefficient | ≤ 1.2 × 10-6 / ° C | |
Wall thickness of hole density of 100 hole/ in2 | 0.42-0.50mm | |
Wall thickness of hole density of 200 hole/ in2 | 0.32-0.40mm | |
Apparent porosity | ≥ 50% | |
Average hole diameter | 10-15 micron | |
Highest Working Temperature | 1400 ° C | |
Soot-filtration efficiency | ≥ 95% |
Shape | Hole density (hole/in2) | Size (mm) | Volume(litre) |
Round | 100/200 CPSI | Φ 127 x 152.4 | 1.9308 |
Round | 100/200 CPSI | Φ 144x150 | 2.4432 |
Round | 100/200 CPSI | Φ 144x152.4 | 2.4823 |
Round | 100/200 CPSI | Φ 144x254 | 4.1372 |
Round | 100/200 CPSI | Φ 150x150 | 2.6511 |
Round | 100/200 CPSI | Φ 190x200 | 5.6713 |
Round | 100/200 CPSI | Φ 190x203 | 5.7564 |
Round | 100/200 CPSI | Φ 190x305 | 8.6487 |
Round | 100/200 CPSI | Φ 228x305 | 12.4542 |
Round | 100/200 CPSI | Φ 240x100 | 4.5245 |
Round | 100/200 CPSI | Φ 240x240 | 10.8588 |
Round | 100/200 CPSI | Φ 240x305 | 13.7997 |
Round | 100/200 CPSI | Φ 260x305 | 16.1954 |
Round | 100/200 CPSI | Φ 267x305 | 17.0792 |
Round | 100/200 CPSI | Φ 286x267 | 17.1550 |
Round | 100/200 CPSI | Φ 286x305 | 19.5965 |
Round | 100/200 CPSI | Φ 286x355 | 22.8090 |
Round | 100/200 CPSI | Φ 286x381 | 24.4795 |
Race track | 100 CPSI | Φ 188x103x145 | 2.2055 |
Assemble track | 100 CPSI | Φ 374x270x317 | 27.0537 |