Essential details
MOQ:10
G.W:0 kg
Shipping:Express Delivery, Land freight, Ocean freight
Product Introduction
HTCY steel‑casing retainer skeleton valve stem seals are precision engine valve‑stem sealing components. Manufactured by compression vulcanization and assembly; outer steel casing provides rigid positioning, sealing lip mainly adopts heat‑resistant FKM fluororubber, NBR or silicone rubber, equipped with internal garter spring for consistent radial lip pressure. Working temperature ranges from‑30℃ to 220℃. The fine‑tuned lip forms a micro oil‑film on reciprocating valve stems, metering proper lubrication while restricting excessive engine‑oil from flowing into combustion chambers. It avoids oil‑burning, carbon‑deposit build‑up and exhaust smoke, meanwhile blocking dust and combustion‑gas back‑flow. Strictly matches OEM dimensions for direct replacement for gasoline & diesel engines. Widely fitted for passenger cars, commercial vehicles, construction machinery and generator sets. Mass standard OEM‑equivalent sizes are kept in stock. Custom inner bore, outer dimension, rubber material grade and OEM part‑number marking are supported according to drawings or original samples for auto‑aftermarket and engine‑manufacturing projects.
