| 1 | Body | Cast iron or ductile iron | 
| 2 | Disc | Ductile iron with zinc plated/Al-bronze/stainless steel | 
| 3 | Stem | Stainless steel | 
| 4 | Spring | Stainless steel | 
| 5 | Rubber gasket | NBR/EPDM | 
| 1 | Face to face ISO Standard | 
| 2 | Flange end DIN,BS,JIS,ANSI | 
| Working pressure | PN10/PN16 | Class 125/150 | 
| Shell pressure | 15bars/24bars | 300PSI | 
| Seat pressure | 11bars/17.6bars | 200PSI | 
| Size(DN) | 50 | 65 | 80 | 100 | 125 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 
| L | 43 | 46 | 64 | 64 | 70 | 76 | 89 | 114 | 114 | 127 | 140 | 152 | 152 | 178 | 229 | 
| D1 | 65 | 80 | 94 | 117 | 145 | 170 | 224 | 265 | 310 | 360 | 410 | 450 | 505 | 624 | 720 | 
| D2 | 43 | 60 | 66 | 91 | 117 | 145 | 198 | 234 | 284 | 333 | 381 | 420 | 468 | 573 | 680 | 
| t | 19 | 20 | 23 | 27 | 30 | 31 | 33 | 40 | 43 | 45 | 52 | 58 | 58 | 73 | 98 | 
| R | 29 | 36 | 43 | 53 | 66 | 79 | 104 | 127 | 148 | 172 | 197 | 218 | 241 | 295 | 354 | 
| BS, DIM, ANSI, JIS standard etc. | |||||||||||||||