A mechanical seal is simply a method of containing fluid within a vessel typically pumps mixers etc where a rotating shaft passes through a stationary housing or occasionally where the housing rotates around the shaft.
What is a ceramic seal for a pump.
The mechanical seals provided by bell and gossett have stainless steel metals buna elastomers a 99 5 pure aluminum oxide ceramic stationary seal face and a carbon rotating face.
Rings of ceramic carbide carbon or composites of these materials are lapped flat in the range of less than 1 micron on an axial end face.
Ceramic cannot however handle the thermal shocks that ni resist or 17 4 seats can.
This subjects the pump seals to shots of up to 100 ethylene or propylene glycol which is well beyond the maximum recommended amounts for even silicon carbide seals.
Shop grainger today for dependable pump shaft seals in the size and material that can fit your application.
Help keep your pumps going strong with high quality pump shaft seals from grainger.
The more common end or rotating face mechanical seal designs feature mating faces as the primary sealing elements.
Find replacements for a wide range of pump shaft seals including a variety of crane us seal and sealol type seals.
Basics of fluid pump sealing.
Our experience is that the standard carbon ceramic seal work fine with properly mixed glycol products designed for our industry.
This article will explain what a mechanical seal is and the key design features that make them work.
It is chemically inert and can be applied to nearly any product.