Welded sight glass SG41D
Material
| NO. | 1 | 2 | 3 | 4 | 5 |
| Part name | Bolt & Nut | Gasket | Body | Gland | Glass |
| Material | carbon steel | PTFE | WCB、CF8、CF8M | WCB、CF8 | Borosilicate glass |
| stainless steel | CF3、CF3M | CF3、CF3M | High Borosilicate glass | ||
| special steel | Other | Other | Other | Quartz glass |
Working temprature
| Glass | Max. temprature | Sharp Variation range |
| Borosilicate glass | 150ºC | 20ºC-120ºC |
| High Borosilicate glass | 280ºC | 20ºC-230ºC |
| Quartz glass | 800ºC | 20ºC-500ºC |
Dimension:
| DN | L(mm) | Φ | D(mm) | D1(mm) | D2(mm) | S(mm) | N-d | glass |
| 15 | 130 | 50 | 95 | 65 | 45 | 16 | 4-14 | Φ45x6 |
| 20 | 150 | 50 | 105 | 75 | 58 | 18 | 4-14 | Φ45x6 |
| 25 | 160 | 50 | 115 | 85 | 68 | 18 | 4-14 | Φ65x10 |
| 32 | 180 | 50 | 140 | 100 | 78 | 18 | 4-18 | Φ65x10 |
| 40 | 200 | 65 | 150 | 110 | 88 | 18 | 4-18 | Φ80x10 |
| 50 | 230 | 80 | 165 | 125 | 102 | 18 | 4-18 | Φ95x15 |
| 65 | 290 | 80 | 185 | 145 | 122 | 18 | 8-18 | Φ95x15 |
| 80 | 310 | 100 | 200 | 160 | 138 | 20 | 8-18 | Φ120x20 |
| 100 | 350 | 125 | 220 | 180 | 158 | 20 | 8-18 | Φ145x20 |
| 125 | 400 | 150 | 250 | 210 | 188 | 22 | 8-18 | Φ170x20 |
| 150 | 450 | 150 | 285 | 240 | 212 | 22 | 8-22 | Φ170x20 |
| 200 | 480 | 150 | 340 | 295 | 268 | 24 | 12-22 | Φ170x20 |
| 250 | 500 | 150 | 405 | 355 | 320 | 26 | 12-26 | Φ170x20 |
| 300 | 520 | 150 | 460 | 410 | 378 | 28 | 12-26 | Φ170x20 |
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