| Exporter, Wholesale, Manufacturer | |
| Tehran |  |
| +989122003350 | |
- Price :negotiated
ENGINE VALVE , Iran
- Price :To negotiate
- order by whatsapp
Engine valves are manufactured from high thermal strength chromium-silicon-manganese alloy steel. Their temperature tolerance reaches 850 degrees Celsius for exhaust and 750 degrees for intake valves. The standard stem diameter ranges from 5 to 10 mm with a dimensional tolerance of ±0.01 mm. The seat angle is typically 45 degrees with a surface finish better than Ra 0.4 microns. Valve spring force varies between 200 and 500 Newtons depending on engine design. These valves undergo gaseous nitriding heat treatment. This process increases surface hardness to up to 800 Vickers.
The valve structure comprises key sections: head, seat face, and stem. The valve lash is typically between 0.15 and 0.25 mm at ambient temperature. The design life under cyclic loading exceeds 100 million cycles. Modern valves often feature anti-wear coatings like chromium-carbide. These coatings reduce the friction coefficient by up to 40%. Hollow stem cooling in some designs lowers operating temperature by 100 degrees Celsius. This feature improves thermal efficiency by up to 3%.You can order and buy ENGINE VALVE from Iran by contacting us through whatsaap and email.
WEBSITE: ENGINE VALVE Iran
The Difference in Quality Between Original and Counterfeit Valves
The quality difference between original and counterfeit valves is evident in their engineering specifications and numerical performance. Original valves are made from standard carbon alloy steel. These materials withstand temperatures exceeding 800 degrees Celsius. Counterfeit samples are produced from ordinary cast iron with poor coating. The dimensional accuracy of original valves is about 0.005 millimeters. Meanwhile, dimensional deviation in non-original samples reaches 0.1 millimeters. The useful life of an original valve under mechanical stress exceeds 10,000 operating hours. Counterfeit samples often develop fatigue cracks and severe wear before 2,000 hours. This difference is clearly measurable in the surface finish of the seat.
