Ceramic Mechanical Pump Seals

Ceramic cannot however handle the thermal shocks that ni resist or 17 4 seats can.

Ceramic mechanical pump seals.

Once made with metal the most common seals faces used today in these pump seals are carbon and ceramic faces. The majority of seals used in pumps are typically carbon ceramic. The spring loaded design keeps the sealing surfaces in contact as the material wears. 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.

Mechanical seals has the high demands about sealing materials so the ceramic is choosed to make ceramic mechanical seal because of its competitive features. Mechanical characteristic ceramic material is the material with the best rigidity and highest hardness in engineering materials and its hardness is mostly above 1500hv. Ceramic generally a 99 5 aluminum oxide offering excellent wear characteristics due to it s hardness. Once in a while the ph is too high for the carbon ceramic seal material.

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. However when the service is abrasive the mechanical seal has to have hard seal faces that can hold up. Single spring mechanical pump seals multipule springs metal bellows in both in line and cartridge seals. Ceramic seal faces for mechanical seals engineered cartridge seals.

Hard faces such as silicon carbide and tungsten carbide solve that problem. Most hvac applications maintain a ph from 7 0 to 9 0. Shop grainger today for dependable pump shaft seals in the size and material that can fit your application. It is chemically inert and can be applied to nearly any product.

Systems with high ph levels. 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. These seals work well with the temperatures mentioned above and a ph neutral range of 7 0 9 0. Find replacements for a wide range of pump shaft seals including a variety of crane us seal and sealol type seals.

A typical water application can last 20 years. 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.