XIAO VALVE have a group of experienced assembly workers to assemble our ball valves carefully, in strict accordance with the API6D,API608,ISO17292 standard specifications for assembly, before the valve assembly, our assembly workers will put all valve parts into ultrasonic cleaning machine to clean, no grease, no impurities. When the customer informed in advance that the ball valve is used for special media working environment(like Oxygen,Hydrogen,Nitrogen etc.) , workers will clean these ball valve spare parts into the ultrasonic cleaning machine and then, after the operation of the oil again degreasing processing.