5/2/2021 0 Comments Marine Stuffing Box Parts
We are actively sourcing parts and combing materials reports for new data.If you buy a part listed for your boat and it doesnt fit well give you your money back -- including shipping -- and pay to return the part.
In other cases, parts were made by small fabricators who specialize in OEM contracts. They are not equipped to handle -- or interested in selling -- one or two parts at a time. We will need measurements, photos, and possibly the old part. We will let you know if you part will take longer than two weeks from order to your door. We check to see if Hunter has the part available, but most often it must be special ordered from the manufacturer. If you can help with sources or part numbers please let us know. It is kind of a packing material used to seal pump, valve, stern-tubes etc. It is also used in boats, where the propeller shaft it protrudes out of the hull. The material is closely packed or wound tightly around the propeller or pump shaft with threaded nut or spacer compressing it in place. There are also hose clamps attached to the stuffing box, which are then attached to a short piece of heavy duty rubber hose. The rubber hose is clamped around the place where the propeller opens in the ships hull. The stuffing box prevents the entry of lubricating oil from the crankcase into the scavenge air space. It also prevents the leaking of air from scavenge space to the crankcase. The housing generally consists of five ring grooves of which, the two uppermost grooves accommodate sealing rings to prevent blowing down of scavenge air along the piston rod. The bottom groves are fitted with scrapper rings in order to scrap the lubricating oil on the piston rod. The two sealing rings are generally made of brass while the scrapper rings are made of steel. It is used to monitor the performance of sealing and scrapper rings. The sealing is adjusted to receive a few drops of fluid per minute to maintain lubrication and subside the heat generated due to continuous motion of the shaft. This amount of water is not considered leakage and seldom creates a problem. Few other types of sealing arrangements such as mechanical face seal and lip seal use materials or lubrication systems which are more technically advanced.
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