Click image to view full size image
Ceramic Disc Valves Alumina Oxide Ceramic
1.The discs valves is made of AL2O3, there are both coarse and fine-grained varieties. Examples of applications for aluminum oxide Al2O3 advanced ceramics are heavy-duty forming tools, substrates and resistor cores in the electronics industry, tiles for wear protection and ballistics, thread guides in textile engineering, seal and regulator discs for water taps and valves, heat-sinks for lighting systems, protection tubes in thermal processes or catalyst carriers for the chemicals industry.
2.Properties of Alumina/Aluminum Oxide (Al2O3)
Very good electrical insulation (1x1014 to 1x1015 Ωcm)
Moderate to extremely high mechanical strength (300 to 630 MPa)
Very high compressive strength (2,000 to 4,000 MPa)
High hardness (15 to 19 GPa)
Moderate thermal conductivity (20 to 30 W/mK)
High corrosion and wear resistance
Good gliding properties
Low density (3.75 to 3.95 g/cm3)
Operating temperature without mechanical load 1,000 to 1,500°C.
Bioinert and food compatible
3.Used for example:
At mixer shower,bathroom taps or kitchen taps:
No more drips
Back in the bad old days, all taps and showers used to use rubber washers to prevent dripping. This worked well, until the rubber started to crack and the dripping returned.
Ceramic discs beat rubber washers hands down because, like the Duracell bunny, they keep going long after your old washer has ran out.
Simply put, ceramic discs do not wear out.
Easy to turn off
Taps with rubber washers close by screwing the head into the body. That's why as the rubber starts to wear out, you find yourself screwing the tap tighter and tighter to get the thing to stop.
With ceramic discs, all that is required is a 1/4 turn of your tap or shower and your water will stop instantly.
No more straining after you've washed. All unnecessary efforts will be a thing of the past.
Ceramic Disc Valves
