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GI series high vacuum butterfly valve is used to connect or cut off the air flow in the vacuum tube. The opening and closing of the valve has a locking function. The applicable working medium is air and non-corrosive gas.
Merkmale:
Anwendbarer Bereich (Pa):105 ~1.3×10-6
Valve leakage rate :(Pa.L/S) ≤1.3×10-7
Medium temperature (°C): -25~+80 (the sealing material is NBR);-30~+150 (the sealing material is fluororubber)
Valve main parts material stainless steel or carbon steel
Flange standard:JB919-75
Einbaulage:beliebig
Anschluss und Abmessungen
| Modell | Durchmesser（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 | 320 | 60 | 435 | 8-Φ18 |
