FAQS

Contact our official support team:

The catalyst reacts based on exhaust temperature. For best performance, install within 50cm of the engine.

• Performance vehicles: High-flow 200cpsi
• Family cars: 400cpsi
• Always select according to your vehicle's original dimensions

• Family car: Less than 125HP/liter
• Performance vehicle: More than 125HP/liter

⚠ SAFETY OPERATION | ENGINE LINKAGE | BACKPRESSURE WARNING ⚠

I. DPF Handling Specifications
Handle with care
▶ Cordierite material is highly brittle - no impact or dropping!
▶ Always support from bottom, never lift by sensors or pipes.
No hammering
▶ Absolutely no hammering, prying or forced installation!
▶ Deformation/cracks will void warranty.

II. System Compatibility Check (Engine + Exhaust)
Mandatory backpressure inspection
▶ Must check before installation:
• Turbocharger oil leakage ✅
• Exhaust pipe dents/blockages (especially catalytic converter) 🔺
• EGR valve sticking or cooler carbon buildup ✅
▶ Abnormal backpressure causes:
→ DPF regeneration failure 🔺
→ Substrate melting/cracking 🔺
Engine health requirements
• Fix oil burning, injector leaks, cylinder misfires
• Installing DPF with existing issues = immediate clogging!

III. Installation Standards
Sealing & Compatibility
• Ensure gaskets are intact + sealing surfaces oil-free (leaks cause pressure fluctuations) 🔺
• Part number must 100% match vehicle/engine model
Sensor Protection
• Prevent wire strain and connector contamination
• Must calibrate differential pressure sensor with diagnostic tool (critical for backpressure monitoring) 🔺

Yes, we do.

1. Vanadium-based (V₂O₅-WO₃/TiO₂)
Active component: Vanadium pentoxide (V₂O₅) on titanium dioxide (TiO₂) with tungsten (WO₃) for thermal stability.

Temperature range:
300–400°C (medium-high), ideal for coal plants, industrial boilers.

Features:
• High NOₓ conversion (>90%)
• Low sulfur resistance (SO₂ oxidizes to SO₃)
• Toxic components require careful disposal

2. Iron-based (Fe-ZSM-5 etc.)
Active component: Iron oxides/ions on zeolite molecular sieves.

Temperature range:
250–450°C (medium-high), weaker at low temps.

Features:
• Better sulfur tolerance
• Non-toxic, easier disposal
• Requires higher temps for efficiency

3. Copper-based (Cu-SSZ-13, Cu-ZSM-5)
Active component: Copper ions on small-pore zeolites.

Temperature range:
200–500°C (wide), excels at 200–300°C.

Features:
• Excellent low-temperature performance
• High resistance to sulfur/water poisoning
• Stable up to 550°C

g/cft.Pt:
g = grams (mass)
cft = cubic feet (1 cft ≈ 28.3 liters)
Pt = Platinum (active component in DOCs)

Definition: Platinum loading per cubic foot of catalyst substrate.

Examples:
• 10g/cft.Pt = 10 grams platinum per cubic foot
• 20g/cft.Pt = higher platinum loading

10g/cft.Pt:
For lower emissions standards (e.g., Euro V) or cost-sensitive applications.

20g/cft.Pt:
For strict standards (Euro VI), heavy-duty vehicles, or extended lifespan requirements.

SDPF (SCR-coated Diesel Particulate Filter) integrates SCR (Selective Catalytic Reduction) and DPF functions into one unit, primarily used to meet strict emissions standards like Euro 6.

We provide multiple options:
• Express: FEDEX, DHL, UPS, TNT (door-to-door)
• DDP: Includes customs clearance + duties + delivery
• Sea/Air freight: To airport/port (customer pickup)
• Small parcel: Cainiao, YunExpress, USPS etc.

Recommended size: 123*110mm 200cpsi catalyst.

Approximately 15-20 days for production and shipping.

Yes, our DDP shipping option includes all customs clearance and import duties.

Our headquarters is in Shanghai, China.

Yes, we provide DPF filter with size 267*254mm for DAF XF trucks.

Yes, we can custom manufacture gasoline particulate filters (GPF) that comply with Italian regulations.