China clay pump: Verderair diaphragm pumps for 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.

China clay is used in many industries. China clay is used AO for the production of rubber, white cement, linoleum, soap, ink, lubricants and cosmetics. In the paper & pulp industry china clay is added to the pulp as a filler and loader to give the paper more body.
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.

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 molds. In a form mold the China clay is kept under pressure. Once China clay has cooled, the mold 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 °.

An air operated double diaphragm pump is particularly suited to pump China clay. The choice of materials and specification of the Verderair range is extensive. Therefore the double diaphragm pumps handle the very abrasive, viscous China clay with ease. No expensive additional equipment to measure and control the pressure are used to control she shape molds. Therefore a Verderair double diaphragm pump is the perfect pump to pump china clay.