titling check valve with damper weight

titling check valve with damper weight technical specification:

Nominal Diameter: DN 100-1600
Nominal Pressure: PN10/16/25
Design Standard: EN12334
FTF Dimension: BS EN558-1 SERIE 14
Flange Connection: ASME B16.5 CL150/ASME B16.47/EN1092/AWWA C207/ ISO 7005
Inspection and Test: API598/ISO 5208/EN12266

titling check valve with damper weight Material List

1. Body: Ductile Iron GGG40/GGG50
              Stainless Steel ASTM A351 CF8/CF8M
             WCB ASTM A216 WCB
2. Disc: Ductile Iron GGG40/GGG50
              Stainless Steel ASTM A351 CF8/CF8M
              WCB ASTM A216 WCB
3. Shaft: Stainless Steel SS420/SS304/316
4. Shaft Pin: Stainless Steel SS420/SS304/316
5. Seat: Stainless Steel SS420/SS304/316
6. Disc Sealing Ring: SS+Graphite/ PTFE/EPDM/NBR

7. Yoke: Carbon Steel 
8. Packing Gland: Carbon Steel 
9. Retaining Ring: Carbon Steel 
                           Stainless Steel SS304/316
10. Bushing: Brass/PTFE
11. O Ring: EPDM/NBR
12. Cylinder: Carbon Steel