SCR urea hose

Introduction

Our automotive urea supply and dosing lines are engineered for efficient, safe, and stable delivery of Diesel Exhaust Fluid (DEF / AdBlue® / AUS32) from tank to injector within the SCR (Selective Catalytic Reduction) system.
With deep expertise in SCR fluid delivery technology, we ensure excellent low-temperature performance, corrosion resistance, precise dosing integrity, thermal management compatibility, and OEM-grade reliability.

Urea lines adopt multi-layer PA construction with heated options, providing robust performance under severe climates and high vibration environments.

Key Features

• Excellent urea fluid compatibility
  Engineered to resist crystallization, hydrolysis, and chemical degradation.

• Stable low-temperature operation
  Heated options prevent freezing; supports cold-start SCR function.

• Low permeation & corrosion resistance
  Multi-layer PA design ensures durability and improves SCR efficiency.

• Flexible routing & lightweight
  Supports compact installation around engine and chassis areas.

• Reliable leak-free sealing
  High-quality quick connectors and precision interfaces ensure stable DEF delivery.

• Multiple structures & configurations
  Supports heated, insulated, pressure-rated, and multi-connector assembly options.

Specification Overview

Why Choose Us

As a manufacturer specializing in automotive fluid-handling systems, we provide advanced PA extrusion, CNC forming, heater integration, and automated leak testing to ensure consistent production accuracy.
Our experienced engineering team offers complete SCR pipeline solutions, including system design review, component matching, validation, and mass production.

Through precise control of material selection, heating structure, and connector design, we deliver pipelines that are durable, lightweight, easy to install, and cost-optimized.

Applications

★ SCR Emission Reduction System

• Urea tank → supply line → pump → dosing injector

• Heated DEF delivery lines

• Urea injector connection hoses

• Urea vapor return line

• Pump module connection pipeline

★ Industrial & Commercial Vehicles

• Heavy-duty trucks

• Construction vehicles

• Agricultural machinery

★ Light Passenger & Hybrid Vehicles

• Light-duty SCR system urea supply

• Auxiliary urea routing for compact installation

Quality & Compliance

• Manufactured under IATF 16949 & ISO 9001

• Compliant with:

• ISO 22241 (DEF / AdBlue Handling)

• Relevant SAE specifications

• VDA OEM standards

• 100% leak-tested before delivery

• Functional validation:

• Thermal cycling / heating performance

• Chemical resistance

• Freeze-thaw endurance

• Vibration & fatigue

• Permeation testing

Customization Options

• Urea line material: PA11 / PA12 / multi-layer

• Heated & insulated line assemblies

• Hybrid structures: metal + PA tube

• Routing customization per vehicle platform

• Connectors: quick connector / insert / flange

• Protective sleeve: nylon braid / foam / corrugated

• Color marking & laser coding

• Custom packaging solutions

Ordering & Sample Policy

Samples available upon request.
Lead time depends on product specifications and order quantity—submit vehicle model, drawings, or OE part number for quotation.

• Sample lead time: 7–15 days (STD)

• Delivery terms: FOB / CIF / DDP available

After-Sales & Support

• Technical support for SCR system integration

• 100% leak + electrical continuity testing (heated types)

• PPAP, 3D drawings, validation reports available

• Warranty available per service conditions

Call to Action

Looking for reliable, low-permeation, and cold-resistant urea supply & dosing line solutions?
Contact us to discuss your system requirements, request samples, quotations, or OE development support.
We deliver stable, long-life, and cost-effective SCR pipeline solutions for global emission compliance.