soft-sealing
2.Ball valves with metal sealing and additional soft sealing have been developed based on the results from a series of experiments conducted over many years, which, by means of an elastomer seat insert, guarantee 100 % sealing efficiency and reduce wear to a minimum, regardless of obstructive particles in the media.
4.Our factory mainly manufactures hydraulicfllfers,filter oil vehicles,hydraulic air cleaner,liquidlevel gage and liquid thermometer,liquid level control relay, switch of manometer,combined sealing washer,piezometer soft tebe assembly,andso on.We also carry on all kinds of non-standard,and bring in filters,air cleaner,liquid-level gage and liquid thermometer and complete set of design and manufacture of hydraulic system.

