Exhaust Flex Connector Pipes Bellows

Primary Applications of Exhaust Bellows

1. Automotive / Passenger Vehicle Sector (Core Application)

Installation Locations: Engine exhaust manifold outlet, upstream and downstream of the three-way catalytic converter, muffler connection section;
Primary Functions:
Absorb transmission of engine vibrations to the vehicle body, reducing cabin noise;
Compensate for thermal expansion in exhaust piping caused by high temperatures (exhaust temperatures may reach 600-900°C);
Accommodate relative displacement between the body and chassis under varying road conditions, preventing exhaust pipe fractures.
Typical Applications: Petrol-powered passenger vehicles, hybrid models (retaining conventional exhaust systems), light commercial vehicles.

2. Commercial/Heavy-Duty Vehicle SectorApplication scope: Trucks, coaches, construction machinery (excavators/loaders), agricultural machinery;

Special requirements: Heavy-duty bellows with thickened corrugated walls and double-layer protective mesh due to high exhaust volume and intense vibration;
Core value: Extends exhaust system lifespan and reduces failure rates during heavy-duty vehicle operation.

3. Industrial Equipment Sector

Internal combustion power equipment: diesel generator sets, marine engines, stationary internal combustion engines;
Industrial exhaust systems: exhaust ducting for boilers, incinerators, metallurgical furnaces, accommodating thermal expansion and equipment vibration;
Specialised applications: High-temperature/corrosive exhaust environments in chemical and metallurgical industries necessitate bellows fabricated from stainless steel (304/316) or high-temperature alloy materials.

4. Rail Transport Sector

Application Scope: Exhaust systems for metro trains, high-speed rail, and diesel locomotives;
Core Requirements: High reliability, low noise, resistance to frequent vibration, and compliance with stringent rail transport safety standards.