FEATURES Simple structure and outstanding performance. Superb performance, followed by strict quality control procedure. High impact resistance and good abrasion resistance : The disc and seat are stainless steelwelded with satellite. Test lever attached : Periodical performance inspections can be conducted. Approval from the Korea Occupational Safety and Health Agency (KOSHA). | FEATURES No instability in high temperatures : The maximum operating temperature of 450YSF-3 can be used without any changes in spring characteristics commonly occur in hightemperatures. High impact resistance and good abrasion resistance : The disc and seat are stainless steelwelded with satellite. Simple structure reduces maintenance costs & offers outstanding performance. High-strength stainless steel inner core components. Test lever attached : Periodical performance inspections can be conducted. Approval from the Korea Occupational Safety and Health Agency (KOSHA). | FEATURES Simple structure and outstanding performance. Disc and seat are free from leakage or transformation issues, thanks to a precision machiningprocess. Test lever attached : Periodical performance inspections can be conducted. Approval from the Korea Occupational Safety and Health Agency (KOSHA). |