Definition - What does Stuffing Box mean?
A Stuffing Box is a kind of a seal that is used to prevent fluids from leaking between the turning or sliding parts of the machine elements. Gland is a general type of the Stuffing Box which is used to shut a rotating or reciprocating shaft against the fluid. The gland is commonly used at the head of a tap where it is packed with a string soaked in similar grease. The gland nut compresses the packing material and forms a water-tight seal to prevent water leakage if the tap is on.
Petropedia explains Stuffing Box
A Stuffing Box is a device used to prevent leakage of liquids or gases along a shaft. It can be referred to as a chamber that is used to form a region between the casing and the shaft where sealing media can be installed. These sealants are usually used on boats or steam engines. It is essential to have a Stuffing Box as steam, water or other fluids can infiltrate the engine or the propeller of the boat.
Most of the boats have propellers which are submerged underwater, which makes it easy for the liquid to cause the propeller to malfunction. Once the stuffing ring is tightly attached around the shaft, the propeller is sealed which protects it from any sort of damage.
In steam engines, a Stuffing Box is strategically placed within the piston area. The main function of the box in steam engines is to prevent the cylinder steam from leaking into the engine. Steam engines produce large amounts of steam, which is impossible to be prevented without a proper sealant.
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