Introduction
Ansi standard Type Bellows Seal Globe Valve main for steam, hot oil pipeline. The connection size is ANSI Standard, American standard valves are heavier than DIN standard valves, So price a little high then DIN standard.
Advantage
ANSI Standard Bellow Seal Globe Valve function is same with Din globe valve.
1, They are all bellow seal globe valves，they are all have double seals (bellows +padding), normal globe valve only have padding seal. But their body design is different, you can check their pictures.
2, Disc with scraping effect, so it has a longer service life.
3, The inside seals bellows are all made by stainless steel 321, which is more corrosion resistant and have a longer service life.
4, bellow seal globe valves are lighter than normal globe valve in open and off.
Technical specification
Face to face :ANSI
Flange ends: DIN2543-2546
Design standard: DIN
Test& inspection: DIN3230
| Nominal Pressure | PN | ||
| Pressure test | Strength test | 1.4PN | MPa |
| Sealing test | 1.0PN | ||
| Gas seal test | 0.5 | ||
| — | — | ||
| Temputer | -20℃~425℃ | ||
Main Material(mostly) it can OEM
| NO. | Part name | Material |
| 1 | Body | GS-C25,1.4401、SS321,SS304 |
| 2 | Seat | 1.4301、SS |
| 3 | Disc | 2Cr13、SS、507L |
| 4 | Pin | 2Cr13 |
| 5 | Bellows | SS321、SS316 ETC |
| 6 | Stem | 1.4401、2Cr13 |
| 7 | Gasket | Flexible graphite + stainless steel |
| 8 | Cover | GS-C25、、1.4401、SS321,SS304 |
| 9 | Nut | ASTM 194-2H、A194-8 |
| 10 | Double-headed bolt | ASTM 194-B7、A193-B8 |
| 11 | Packing | BY Ply-wooden case |
| 12 | Gland | GS-C25、1.4301、1.4401 |
| 13 | Locator | 1C25 |
| 14 | Stem nut | Copper alloy、D2、BL2 |
| 15 | Hand wheel | KTH330-08 |
| 16 | Cap | 1C45 |
Connection Size (DN15-DN350)
| ANSI CLASS150 | |||||||
| DN | Main connection size | ||||||
| L | D | D1 | D2 | C | f | n-Φd | |
| 15 | 108 | 90 | 60.3 | 34.9 | 11.2 | 2 | 4-Φ16 |
| 20 | 117 | 100 | 69.9 | 42.9 | 12.7 | 2 | 4-Φ16 |
| 25 | 127 | 110 | 79.4 | 50.8 | 14.2 | 2 | 4-Φ16 |
| 32 | 140 | 115 | 88.9 | 63.5 | 16 | 2 | 4-Φ16 |
| 40 | 165 | 125 | 98.4 | 73 | 17.5 | 2 | 4-Φ16 |
| 50 | 203 | 150 | 120.7 | 92.1 | 19 | 2 | 4-Φ19 |
| 65 | 216 | 180 | 139.7 | 104.8 | 22.4 | 2 | 4-Φ18 |
| 80 | 241 | 190 | 152.4 | 127 | 24 | 2 | 4-Φ18 |
| 100 | 292 | 230 | 190.5 | 157.2 | 24 | 2 | 8-Φ18 |
| 125 | 356 | 255 | 215.9 | 185.7 | 24 | 2 | 8-Φ18 |
| 150 | 406 | 280 | 241.3 | 215.9 | 25.4 | 2 | 8-Φ22 |
| 200 | 495 | 345 | 298.5 | 269.9 | 28.4 | 2 | 8-Φ22 |
