Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of truck exhaust pipe interface gaskets in China, also supports customized service. Please feel free to buy high quality truck exhaust pipe interface gaskets for sale here from our factory.
Truck exhaust pipe interface gaskets: high-temperature sealing solutions
Product Definition & Core Functionality
Truck exhaust pipe interface gaskets are a key component of the exhaust system and are designed to enclose high-temperature exhaust gases. It is installed between the exhaust pipe and the exhaust port of the engine cylinder head. It compensates for the uneven joint surface by elastic deformation, blocking the gas leak channel. Core features include:
High-temperature sealing: Withstand exhaust gas temperature above 800°C to prevent power loss and environmental pollution caused by gas leakage.
Pressure buffering: Balances the pressure difference between the inside and outside of the exhaust system and reduces the impact of vibration on the connected parts.
Extended Life: Extend overall service life by reducing thermal stress damage to the engine cylinder head through effective sealing.
Technical parameters and industry standards
Material performance requirements
High-temperature resistance: graphite/mica + stainless steel composite structure, long-term resistance to 400-1000°C working conditions.
Mechanical Properties:
Hardness: Shore A type 60-80 degrees (in line with GB/T 7512 standard)
Tensile strength ≥ 9.8MPa, elongation at break ≥ 250%
Aging resistance: Passed the 100°C air exposure test for 72 hours without cracking.
International certifications and standards
ISO 8434-1: Performance Specification for Compression Joint Seals
QC/T 1090-2017: China Technical Standard for Automotive Engine Gaskets
ASME B16.20: Design Specification for Metal Wound Gaskets
Product Advantages & Differentiated Design
Material innovation
Multi-layer composite structure: The graphite layer provides lubricity, and the stainless steel skeleton enhances the deformation resistance, solving the problem of easy embrittlement of traditional asbestos gaskets.
Customized design: support V-shaped/W-shaped winding pads, spherical sealing rings, and other structures, and adapt to the interfaces of different models.
Advantages of installation and maintenance
Preload optimization: It is recommended to tighten the bolts for a second time after 200 kilometers after installation to avoid ablation caused by loosening.
Compatibility test: soaked in n-pentane solution for 70 hours, the volume expansion rate is ≤25% to ensure compatibility with lubricating oil.
Industry application cases
Heavy truck market: domestic leading companies (such as sealing technology) have a market share of more than 60% in natural gas heavy trucks, and the reliability of products under extreme working conditions has been verified.
Cost reduction and efficiency increase: The three-layer structure design with an integrated heat shield reduces the maintenance frequency by 40%.
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