GI series high-vacuum butterfly valve can control the airflow in the Vacuum system from 0°to 90°. he applicable active media of this valve are air, non-corrosive gas.
Main technical performance:
| Scope (Pa) | 105～1.3×10-5 |
| Valve Leakage Rate(Pa.L/S) | ≤1.3×10-6 |
| Medium temperature（℃） | -25～+80(Sealing Material NBR) -30～+150(Sealing Material FPM) |
| Flange Standard | JB919 |
| Installation location | Random |
Connection and Dimensions：
| Model | Nominal Diameter(DN) | ΦD | ΦB | H | A | L | L1 | n-ΦC |
| GI-32 | 32 | 78 | 64 | 51 | 22 | 62 | 29 | 4-Φ7 |
| GI-40 | 40 | 85 | 70 | 55 | 65 | 32 | ||
| GI-50 | 50 | 110 | 90 | 69 | 71 | 45 | 4-Φ9 | |
| GI-63 | 63 | 130 | 110 | 72 | 26 | 87 | 55 | |
| GI-80 | 80 | 145 | 125 | 80 | 30 | 85 | 63 | |
| GI-100 | 100 | 170 | 145 | 93 | 110 | 75 | 4-Φ12 | |
| GI-150 | 150 | 220 | 195 | 122 | 35 | 155 | 98 | 8-Φ12 |
| GI-200 | 200 | 275 | 250 | 156 | 40 | 159 | 117 | |
| GI-250 | 250 | 330 | 300 | 259 | 45 | 167 | 132 | |
| GI-300 | 300 | 380 | 350 | 284 | 55 | 197 | 162 | 8-Φ14 |
If possible, kindly suggest please your working industry/process, working pressure, working medium, etc. Given detailed request helps to gain better-matched customized solution. Thanks for your patience.
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