2005 Audi A4 Engine Valves

TRW Engine Components is a recognized developer of valves and valve train components. A wide range of materials and material combinations are used to meet the engineering requirements in the different engine applications. Materials vary from ferritic martensitic steels (intake valves) and austentic CrMn based steels to extreme heat and corrosion resistant Nickel base super alloy for exhaust valves. To improve wear and corrosion resistance, valves can be chromium plated or nitrided. These coatings are used to improve the compatibility of the valve stem surface to the valve guide material. If necessary, exhaust valves (and in some cases also intake valves) can be hard-faced. In hard-facing, a more heat and wear resistant material is welded to form the valve seat. Seat hard-facing extends the valve life significantly.

Product Features:

• OE Quality
• Optimized for strength
• Heat and corrosion resistant
• Chromium plated or nitrided
• Stem optimized to resist wear

Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

TRW Engine Components is a recognized developer of valves and valve train components. A wide range of materials and material combinations are used to meet the engineering requirements in the different engine applications. Materials vary from ferritic martensitic steels (intake valves) and austentic CrMn based steels to extreme heat and corrosion resistant Nickel base super alloy for exhaust valves. To improve wear and corrosion resistance, valves can be chromium plated or nitrided. These coatings are used to improve the compatibility of the valve stem surface to the valve guide material. If necessary, exhaust valves (and in some cases also intake valves) can be hard-faced. In hard-facing, a more heat and wear resistant material is welded to form the valve seat. Seat hard-facing extends the valve life significantly.

Product Features:

• OE Quality
• Optimized for strength
• Heat and corrosion resistant
• Chromium plated or nitrided
• Stem optimized to resist wear

The AE range of high quality valve-train components includes application-specific valves, design and manufactured to OE standards. The top-engine environment is increasingly hostile, due to turbocharging and other techniques for CO2 reduction. Only components that employ OE design expertise, with the latest advanced materials and manufacturing quality, can provide the performance and durability that professional engine technicians demand. Valves are subjected to some of the highest stresses and temperatures in the engine, yet not only must they survive, they must also continue to seal perfectly. As a top-engine expert with a long heritage of innovation, AE provides the answer with high-precision designs. The choice of material is so critical that some AE valves, known as bi-metallic valves, are made from two materials, with the head optimized for strength and temperature resistance and the stem optimized to resist wear.

Product Features:

• OE Quality
• Optimized for strength
• High temperature strength
• Stem optimized to resist wear

The AE range of high quality valve-train components includes application-specific valves, design and manufactured to OE standards. The top-engine environment is increasingly hostile, due to turbocharging and other techniques for CO2 reduction. Only components that employ OE design expertise, with the latest advanced materials and manufacturing quality, can provide the performance and durability that professional engine technicians demand. Valves are subjected to some of the highest stresses and temperatures in the engine, yet not only must they survive, they must also continue to seal perfectly. As a top-engine expert with a long heritage of innovation, AE provides the answer with high-precision designs. The choice of material is so critical that some AE valves, known as bi-metallic valves, are made from two materials, with the head optimized for strength and temperature resistance and the stem optimized to resist wear.

Product Features:

• OE Quality
• Optimized for strength
• High temperature strength
• Stem optimized to resist wear