MANUFACTURING OF CHECK VALVES
- screw tip
- backflow ring
- support ring
- NITRIDED quality – basic quality suitable for processes without the addition of glass fiber and other additives.
- HARDENED quality – suitable for processing materials with glass fiber content up to 30 %.
- CPM quality – suitable for processing materials with glass fiber content over 30 %, this quality is not suitable for processing of polyolefins (PE, PP).
|Diameter in mm||20 ÷ 500||20 ÷ 500||20 ÷ 500|
|Nitrided layer depth in mm||0,5 ÷ 0,7||–||–|
|Weld thickness in mm||–||Hardened throughout the whole cross-section|
|Hardness||950 ± 80 HV||60 ÷ 64 HRC||58 ÷ 61 HRC|