Body: Cast Iron
Disc: Cast Iron
Stem: Stainless Steel
Seat: EPDM, NBR, VITON
1. Small in size, light in weight, compact in structure, easy in fix.
2. Two torsional springs are installed on each of dual valve plates, result in close the plates quickly and automatically.
3. The quick-close action prevents the medium from flowing back and eliminates water-hammer effectively.
4. Safe and reliable in operation, high capability of resisting interference.
5. It is easy to instal on pipeline which is laid horizontally or vertically.