Volvo loader L90 and L120 engine valve seat , Iran

The valve seat in Volvo L90 and L120 loader engines is manufactured from chromium-molybdenum alloy steel with a surface hardness of 60 to 64 HRC and thermal resistance up to 950°C. It is precisely interference-fitted into the cylinder head, and the valve contact angle is maintained between 45 and 46 degrees to ensure optimal sealing and gas flow efficiency. The inner diameter of the intake valve seat is 42 mm for L90 and 46 mm for L120, while the exhaust seat diameters are 36 mm and 40 mm respectively. The seat profile and throat geometry are engineered to minimize friction and distribute thermal loads uniformly, increasing durability and reducing heat-related engine failures.

In addition to high mechanical strength, the valve seat surface is coated with a nickel-chrome layer to resist oxidation and carbon buildup. Operating pressures at the valve-seat interface range from 1.5 to 2.5 bar, with resistance to repeated thermal shock from combustion cycles. The average service life exceeds 8,000 operating hours under heavy-duty conditions. Accurate seat concentricity and controlled interference fit reduce valve misalignment and leakage, ensuring stable compression, consistent combustion efficiency, and reliable performance under continuous high-load operation.You can order and buy Volvo loader L90 and L120 engine valve seat from Iran by contacting us through whatsaap and email.
WEBSITE: Volvo loader L90 and L120 engine valve seat Iran