The brand of material is 58-A which have test-report. All products are made by CNC and tested by air pressure before delivery.

Max.Pressure:hydrostatic pressrure 30bar.

Max.turn angle:90°

Max.temperature:90      

Life test:300,000 open and close cycles

Fitting method:GB1/2

Sealing face of ceramic disc:

 Hardness:1100Hv5            Flatness:0.6μM

Roughness:Ra0.25μM        Porosity:60-80%

100% was tested by air pressure before delivery

ceramic cartridge