Material

Carbon, electrographite, reaction bonded silicon carbide

Impregnations

Resin, antimony, tin, white metal

Products

• Sliding and sealing rings
• sliding and sealing rings for mechanical seals
• Sealing rings for vacuum pumps, compressors and pumps

Axial sealing rings applications 

• Chemical industry with chemically aggressive media
• Petrochemical industry, refinery and oilrigs
• Pharmaceutical industry (hygienically suitable impregnation)
• Food industry (hygienically suitable impregnation)
• Sewage tanks
• Circulation pumps for cooling in atomic power plants
• Cooling water pumps in cars 

Excellent properties of these materials can be used in following applications

• Usage of these products in application without lubricants
• Seals can be applied in dry running applications
• Useful properties of these materials in applications where other materials can not be installed owing to the danger of corrosion, e.g. acids, hydroxides, steams and gases
• Good usage in liquids which lack any marked lubricatings effect, e.g. water, water solutions, petrol, etc.
• The medium to be sealed must not be contaminated by lubricants
• For sealing applications which are exposed to thermal fluctuations of thermal shocks
• Specific properties of these materials provide permanency of form and thermal stability up to extreme temperatures

The most suitable counterface materials

 Silicon carbide, tungsten carbide, aluminium oxide, stellite, hard metal, grey cast iron, alloyed and unalloyed and nitrided, ceramic, glass