Each electrical heater band can be arranged in a sealing bush 1 which is combined with the oil tube in case of the contact with oil.

Provide Marine Engine Parts, such as Plunger & Barrel, Nozzle, Delivery Valve, Bearing, Sealing Bush, Exhaust Valve, Inlet Valve, Valve Seat, etc.

The labyrinth seal of taper bush changes the structure of the sealing cavity so that solves the seal problem of the feeder effectively.