China Rubber Sealing Gaskets Nok Seals Auto Rubber Parts

Product: The Valve stem seal is a very important part of the Auto Engines. It is installed at the top and/or end part of the valve tube which locates between the valve stem and the valve tubes. It can adapt to the changing gap between the stem and the pipe in the reciprocating movement, control the lubricating of oil flowing into the gap between the guide rod and the pipe, ensure the lubrication needs of the valve stem and the oil seal lip, and avoid the lubricating oil entering the cylinder through the gap. The valve stem seals can reduce the oil leakage into the combustion chamber causes the components to be charcoal and reduces the service life of the engine parts.Materials: FKM, Viton rubber, NBR, ACM and etc.
Other names: Rubber sealing, rubber parts, Valve stem seals, Oil sealing, Auto engine parts.
Operating temperature: -20 - 200 °C
Color: BlacPlastic Machinery k, Brown, Red, Blue, Green, Grey
Hardness: Shore Industrial Customized Service A 60-75
Application: The alve stem oil seals are mainly used in the Auto Engines and other kinds of Engines.
The viton rubber can be used at temperature range of -20 degree and 200 degreeExcellent chemical and oil resistance.Good adhesionPre-Press Equipment to metalsExcellent anti-corrosive medium and strong oxidant performance; to fuming nitric acid, concentrated sulfuric acid, hydrochloric acid, hydrogen peroxide, concentrated alkali and other strong corrosive medium effect stability are superior to other rubber.
Package100 pcs per plastic bags and then on cartonsDelivery timeAround 3-4 weeks after the ordersPayment termsT/T is preferable, D/P and L/C is also okTrade termsFOB,CFR,CNF,CIF,EXW,DDP,DDUMOQ1000 pcs


* Wide range of temperature from -15 degree to 200 degree.
* Excellent in chemical and oil resistance
* Good adhesion to metals
The materials we use of the Valve stem seals Transmitter is Viton rubber, Good quality cold-rolled carbon steel and 65 Mn Spring. All these good quality materials ensure the long term use of it under high temperature in the Auto Engines.
Usually we need around 10-14 days to prepare the molds of the Valve stem seals. And another 5 days will be needed to finish the samples. Pls send us samples or drawings for reference.