CUMI brings you Alumina ceramics with 99.5% purity (which are highly corrosion resistant) for various pump mechanical seal applications. Our`t’ type inserts are resistant to highly corrosive acids and alkalis except phosphoric acid and hydrofluoric acids. We can manufacture the seal part to the maximum diameter up to 200mm.

Our shaft protection sleeves are used by major pump manufacturers and every part can be made to customer's individual requirements.

In the transport and control of aggressive fluids, ceramic components provide exceptional resistance to corrosion, mechanical erosion, and abrasion while maintaining their superior surface finish and fit. Ceramic structures of controlled porosity are now finding application in a wide variety of filtration processes.

• Mechanical faces, Rotary unions and faces
• Pump shaft sleeves, linings and plungers 
• Valve rim / Meter bearings
• Fine bubble diffusers / Faucet valve plates 
• Cryogenic pump components 
• Spray nozzles / Compressor components 
• Pneumatic and hydraulic control components 
• Flow meter components
  

Ceramic Plungers are the right choice for most saltwater, chemical and metering applications. CUMI's specially formulated grades of ceramic allow a standard 0.8 microns Ra surface finish which extends packing life dramatically.