Carbon Ceramic Mechanical Seal

Tion of a mechanical seal.

Carbon ceramic mechanical seal.

For use in waste water boiler feed and compressor pumps these seals have an extra long spring that accommodates variations in seal cavity length. The mechanical shaft seal is essentially a throttle arranged around the shaft. Kemet lapping systems are used in both manufacturing and reconditioning processes. These seals work well with the temperatures mentioned above and a ph neutral range of 7 0 9 0.

They come furnished as two pieces the seal and the seat. Systems with high ph levels. Carbon is standard on 316ss pumps. The seat is comprised of the seat and the gasket.

This is commonly seen in centrifugal pumps although this challenge also exists in other equipment such as agitators turbines compressors centrifuges and blowers. As previously stated a pump with a through shaft is not leakproof. Ceramic generally a 99 5 aluminum oxide offering excellent wear characteristics due to it s hardness. 3 4 type 21 buna carbon vs.

Most hvac applications maintain a ph from 7 0 to 9 0. Mechanical seals come in a wide range of designs however the most important factor when determining how long a seal is going to last. Carbon tungsten carbide ceramic silicon carbide chrome oxide stellite ni resist and phosphor bronze. Ceramic standard on cast iron pumps.

Common types of mechanical seal face. Ceramic cannot however handle the thermal shocks don t drop them that ni resist or 17 4 seats can. It is chemically inert and can be applied to nearly any product. Often called teflon r.

Mechanical shaft seals this section briefly describes the design and elements of the mechanical shaft seal. Seal basics a mechanical seal is a device used to seal the interface between a rotating shaft and a stationary housing figure 1. Machine lapping is the production method of lapping mechanical seal faces. The most common types of seal faces are.

3 4 type 21 fluorocarbon ceramic vs. 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. It reduces leakage between the pump and the surroundings to an absolute minimum. Carbon ceramic ni resist 17 4 silicon carbide tungsten carbide gfptfe glass filled ptfe.

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. Overview of ceramic seal materials. Carbon is also a critical component in some of the hard face materials used in mechanical seals because it combines with metals at high temperatures to form metallic carbides. The seal is comprised of the case spring diaphragm and washer which come locked together as one piece.