GI series high vacuum butterfly valve is used to connect or cut off the air flow in the vacuum pipe. The opening and closing of the valve has the locking function.
The applicable working medium is air and non corrosive gas.
| applicability（Pa） | 105 ~1.3×10-6 |
| Valve leak rate（Pa.L/S) | ≤1.3×10-7 |
| Applicable temperature（℃） | -25~+80（sealing material is NBR） |
| -30~+150（sealing material is fluororubber） | |
| Material of main parts of valve | Stainless steel or carbon steel |
| Flange standard | JB919 |
| Installation position | arbitrarily |
| model | Drift diameter（DN） | ΦD | ΦB | H | A | L | n-ΦC |
| GI-25 | 25 | 70 | 55 | 64 | 22 | 104 | 4-Φ7 |
| GI-32 | 32 | 78 | 64 | 68 | |||
| GI-40 | 40 | 85 | 70 | 72 | 116 | ||
| GI-50 | 50 | 110 | 90 | 85 | 4-Φ9 | ||
| GI-63 | 63 | 130 | 110 | 96 | 26 | 132 | |
| GI-80 | 80 | 145 | 125 | 108 | 30 | 154 | |
| GI-100 | 100 | 170 | 145 | 120 | 4-Φ12 | ||
| GI-125 | 125 | 195 | 170 | 136 | 35 | 197 | |
| GI-150 | 150 | 220 | 195 | 150 | 8-Φ12 | ||
| GI-200 | 200 | 275 | 250 | 185 | 40 | 242 | |
| GI-250 | 250 | 330 | 300 | 219 | 45 | 330 | |
| GI-300 | 300 | 380 | 350 | 245 | 55 | 8-Φ14 | |
| GI-400 | 400 | 500 | 465 | 312 | 60 | 435 | 8-Φ18 |
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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