16x28x7 FKM FKM Valve Stem Oil Seal Oil Resistant For Auto Engines
Factory Oil Resistant FKM FKM Rubber Valve Stem Oil Seals for Auto Engines
Size: OEM
Specifications:
In addition to traditional valve stem seals, our provide additionally consists of valve stem seals for engines with excessive pressures withinside the manifolds, e.g. due to rapid chargers or for exhaust brakes on business engines. Featuring a low friction design, those seals enhance the first-rate of emissions and decorate engine operation via way of means of withstanding excessive pressures withinside the exhaust and consumption ports of the engine.
Rubber Features:
| MATERIAL | TEMP | ADANTAGES | LIMITATION |
|
Nitrile Rubbrt (NBR) |
-40~125ºC |
Good oil and fuel resistance High tensile strength Low swelling in water |
Poor weather and ozine resistance Poor resistance against polar lkuids Poor resistance against clhydrocarbon Poor resistance against aromatic fluids |
|
Fluorinated Rubber (FKM) |
-20~250ºC |
The resistance against oil and fuels is better than other types The only highly elastic rubber whice is resistance to aromatci and chlornated hydrocarbons Exccllcent hcat resistance Exccllcent weather and ozonc resistance Exccllcent acid resistance Low swelling in water |
Limited cold flexibliity Limited tensile and tear strength Limited wear resistance High compression set in hot water Poor resistance to polaric solvents |
|
Polyacrylate Rubber (ACM) |
-25~150ºC |
Good oil and fuels resistance Good weater and ozone resistance |
Not usable in contact with water and water solutions Limited cold flexibility Limited tensile strength and tear resistance Poor wear reisistance Poor resistance against polar and aromatic and chlorinared hydrocarhons |
|
Silicone Rubber (VQM) |
-60~225ºC | Best heat resistance of all rubber types Excellent low temp resistance of all rubber types Excellent weather and ozone resistance |
Poor tensile and tear strength Poor wear resistance Sensitive to hydrolysis Poor resistance against aromatic oils and oxidized mineral oils Poor diffusion resistance |
What is the function of valve stem seals?
The cause of the valve stem seal is, to save you the oil from the cylinder head; getting into the combustion chamber.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.