Flexible valve seat structure for laying
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Three innovation
1. Reduce valve laying time
2. Reduce installation and maintenance cost
3. Increase valve reliability
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| No | Description | Material | 
| 1 | Body | Ductile iron GCD450 | 
| 2 | Disc | Ductile iron GCD450 | 
| 3 | Body Seat | Stainless steel STS304 | 
| 4 | Disc Seat | Special Stainless steel | 
| 5 | Shaft | Stainless steel STS420l2 | 
| 6 | Housing | Ductile iron GCD450 | 
| 7 | Gear Box | ASS’Y | 
| 8 | Disc Ring | Stainless steel STS304 | 
| 9 | Support Bolt | Stainless steel STS304 | 
| 10 | Slip Cap | ASS’Y | 
| Dimensions | Flanges to KWWA, DIN F4 and F5, GOST, SABS, AS, BS and AWWA standards | 
| size(Ød) | ØD | ØC | Øg | n-Øh | L | t | f | A | B | X | Y | Z | 4-Øh1 | ØF | H | T | 
| 300 | 445 | 400 | 367 | 12-23 | 178 | 24 | 3 | 306 | 300 | – | – | – | – | 600 | 300 | 40 | 
| 350 | 505 | 460 | 427 | 16-23 | 190 | 26 | 3 | 331 | 325 | – | – | – | – | 625 | 325 | 40 | 
| 400 | 565 | 515 | 477 | 16-27 | 216 | 28 | 3 | 371 | 365 | – | – | – | – | 665 | 366 | 40 | 
| 450 | 615 | 565 | 518 | 20-27 | 222 | 30 | 3 | 397 | 390 | – | – | – | – | 690 | 390 | 40 | 
| 500 | 670 | 620 | 582 | 20-27 | 229 | 30 | 3 | 422 | 425 | – | – | – | – | 741 | 425 | 60 | 
| 600 | 780 | 725 | 682 | 20-30 | 267 | 34 | 3 | 472 | 475 | 490 | 600 | 180 | 4-23 | 799 | 475 | 60 | 
| 700 | 895 | 840 | 797 | 24-30 | 292 | 34 | 3 | 538 | 529 | 550 | 700 | 200 | 4-23 | 895 | 529 | 60 | 
| 800 | 1015 | 950 | 904 | 24-33 | 318 | 36 | 3 | 605 | 590 | 620 | 800 | 230 | 4-23 | 956 | 590 | 60 | 
| 900 | 1115 | 1050 | 1004 | 28-33 | 330 | 38 | 3 | 684 | 645 | 700 | 900 | 240 | 4-27 | 1107 | 645 | 63 | 
| 1000 | 1230 | 1160 | 1111 | 28-36 | 410 | 42 | 3 | 744 | 700 | 760 | 1000 | 250 | 4-27 | 1162 | 700 | 65 |