1. Material Specification:
Body–Cast Iron/ Ductile Iron
Disc–Ductile Iron/ Aluminum Bronze/Stainless Steel
Stem–SS304/SS316
Seat-ring–EPDM/NBR
Sring–SS304/SS316
2. Working Temperature: -20–+110 degree C.(EPDM)/ -10–+80 degree C.(NBR)
3. Working Pressure: PN16/PN25
4. Norminal Diameter: DN50-DN300