China clay pump: Verderair diaphragm pumps for china clay

Clay Pump


Benefits Verderair pumping China Clay

  • Can stall against closed discharge

  • Good abrasive resistant

  • Dry running capability



A Verderair Pure pump has specifiic features to make pumping ceramic slurry easier. The Verder Pure pump is constructed out of pure and solid materials. The machined models made of  pure PE are highly abrasion resistant, ideal for pumping China clay into the moulds. They can even pump glazes. Verderair Pure pumps also transfer rubber slurry, white cement, linoleum masse, soap streams, ink, lubricants and cosmetics.

No additional equipment needed
China clay and other ceramic slurry are easily pumped with a Verderair pump because of the extensive choice of materials and the extended material combination possibilities. The pump handles very abrasive, viscous China clay and ceramic slurries. No expensive additional equipment to measure and control the pressure are used to control the shape moulds. Therefore a Verderair double diaphragm pump is the perfect pump to pump China clay.

Pumping China Clay slurry
A classic example of an application where a China clay pump is used, is the manufacture of porcelain toilet pans and basins. The China clay slurry is pumped from the storage tanks to the form moulds. In a form mould the China clay is kept under pressure. Once China clay has cooled, the mould form is removed and the porcelain is baked. Ceramics may only be called porcelain if the china clay is baked in a minimum temperature of 1400 °.

Background information on China Clay
China clay is a very strong mineral clay, consisting of mainly kaolinite. China clay is formed by the chemical decomposition of aluminium silicates. The bare rock consists of granite and a mixture of quartz, feldspar and mica with trashes of potash, soda and lime; depending on at which geographic location the china clay is being mined. All mineral compositions of China clay are very high abrasive.

The most common applications however are within the ceramic industry for tableware and tiles etc. In the ceramic industry china clay is almost always applied as a slurry. This china clay slurry is a semi-liquid with many spores of solids.