maximum pressure resistance: Pressure Resistance28kg(400psi)highest temperature:Max temperature100lowest temperature:Lowest Density-23Aeroseal test:Air leak test8kgnoise testNois elevel18-19db(A)at 3 bar with filtervalve core locking torque:Gland nut Torgue10-12N-Mflux:Flew Rate20L/minlife test:Life Test500000cycles All component of the ceramic cartridge is design and produce by ourself ,so we can control the quality and cost effective, so every demand from customer will be available.