Ceramic Mechanical Pump Seals

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.

Ceramic mechanical pump seals.

High speed mechanical pump shaft seals built for high speed circulation and dispensing pumps these seals have a short spring that facilitates speeds up to 10 000 rpm. Mechanical characteristic ceramic material is the material with the best rigidity and highest hardness in engineering materials and its hardness is mostly above 1500hv. It is chemically inert and can be applied to nearly any product. Shop grainger today for dependable pump shaft seals in the size and material that can fit your application.

However when the service is abrasive the mechanical seal has to have hard seal faces that can hold up. Ceramic cannot however handle the thermal shocks that ni resist or 17 4 seats can. Ceramic seal faces for mechanical seals engineered cartridge seals. In most applications carbon ceramic seals work fine but there are certain circumstances when a different type of material for the mechanical seal should be specified.

Once made with metal the most common seals faces used today in these pump seals are carbon and ceramic faces. The spring loaded design keeps the sealing surfaces in contact as the material wears. Once in a while the ph is too high for the carbon ceramic seal material. A typical water application can last 20 years.

These seals work well with the temperatures mentioned above and a ph neutral range of 7 0 9 0. Single spring mechanical pump seals multipule springs metal bellows in both in line and cartridge seals. Most hvac applications maintain a ph from 7 0 to 9 0. Hard faces such as silicon carbide and tungsten carbide solve that problem.

Ceramic generally a 99 5 aluminum oxide offering excellent wear characteristics due to it s hardness. Find replacements for a wide range of pump shaft seals including a variety of crane us seal and sealol type seals. Help keep your pumps going strong with high quality pump shaft seals from grainger. Zodiac r0479400 new style ceramic and carbon mechanical shaft seal replacement for select zodiac jandy pool and spa pumps 4 5 out of 5 stars 51 17 40 17.

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. The more common end or rotating face mechanical seal designs feature mating faces as the primary sealing elements.