| Material |
Serial no. |
Part |
Material |
1 |
Handwheel |
Ductile iron |
2 |
Stem nut |
Copper alloy |
3 |
Support |
Grey cast iron,ductile cast iron,cast steel |
4 |
Gland |
ductile cast iron,cast steel |
5 |
Gasket |
Buna-N rubber or EPDM |
6 |
Stem |
Stainless steel |
7 |
Gasket |
Buna-N rubber or EDPM |
8 |
Disc |
Ductile cast iron packed with rubber or EDPM outside |
9 |
Body |
Greycast iron,ductile cast iron,cast steel |
|
| Main technic-al parameters |
Nominal pressure: 1.0-2.5MPaWorking temp.:0-120Flanged end:GB/T17241.6 GB9113,ASME 16.5 etc..
Nominal diameter: 50-400mmService:water,oils,gas etc..Inspection and test:GB 13927 API 598
|
Main dimensionsunit:mm |
DN |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
L |
178 |
190 |
203 |
229 |
254 |
267 |
292 |
330 |
356 |
381 |
406 |
Hmin(full close) |
322 |
332 |
350 |
420 |
581 |
581 |
736 |
882 |
1009 |
1300 |
1380 |
Hmax(full open) |
374 |
398 |
429 |
524 |
721 |
736 |
942 |
1013 |
1117 |
1655 |
1805 |
|
|
