1. Body: DI/WCB
2. Disc: DI/WCB
3. Stem: CS/SS
4. Spring: stainless steel
5. Seal ring: NBR/PTFE
6. Design: EN1074-3
7. Working pressure: PN10 PN16 PN25
8. Design:EN1074-3
9. Working pressure:PN10 PN16 PN25
