Material: Zirconia
Main characteristics:
1. Super resistance of wear high temperature. Abrasion
2. Non-gas, fine thermal insulation
3. High pricisian of ball, good quality of surface
4. The ball is manufactured with advanced grinding equipments and technologies, which has high roundness, excellent surface quality, furthermore, due to the self-lubrication of alumina or zirconia ceramics, it has very good seal performance after matching to the valve seat.
5. The excellent wear-resistance of the ceramic make the valve endurable, high dependability and long service life, 2-4 times than titanium alloy valve and Monel valve.
Through many years' investigations and experiments, Fujian Provincial Johnson Mining Co., Ltd. has invested to build up Hi-Tech Ceramic Industry District since December 2000. The first investment is USD 4, 000, 000, the acreage is 15, 000m² .
At present Johncera has built 14, 000m workshops and 2, 300m² R&D center, there are 5 advanced Hi-Tech Ceramic product lines, and has many advanced equipments including Cold Isostatic Pressing Machines, Automatic High-temperature Mills, etc.
The annual production value is coming up to RMB 80, 000, 000; The products are reaching international advanced standards. It is expected that export value will achieve USD 6, 000, 000...² .
