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GI-A series high vacuum butterfly valve is used to connect or cut off the air flow in the vacuum tube. The valve plate of the valve adopts a clamping structure, which clamps the sealing ring of the valve plate, has the function of fine-tuning the main seal, and the valve opening and closing has a locking function. . The applicable working medium is air and non-corrosive gas.
Características:
Applicable range (Pa):10^5~1.3×10^-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)
Material de las piezas principales de la válvula acero inoxidable o acero al carbono
Flange standard:GB/T6070
posición de instalación:Cualquiera
Conexión y dimensiones
| modelo | diámetro（DN） | ΦD | ΦB | H | A | L | n-ΦC |
| GI-50A | 50 | 110 | 90 | 84 | 26 | 130 | 4-Φ9 |
| GI-63A | 63 | 130 | 110 | 94 | 32 | ||
| GI-80A | 80 | 145 | 125 | 107 | 154 | 8-Φ9 | |
| GI-100A | 100 | 165 | 145 | 117 | |||
| GI-125A | 125 | 200 | 175 | 136 | 35 | 197 | 8-Φ11 |
| GI-150A | 150 | 225 | 200 | 150 | |||
| GI-200A | 200 | 285 | 260 | 188 | 45 | 242 | 12-Φ11 |
| GI-250A | 250 | 335 | 310 | 220 | 50 | 330 | |
| GI-300A | 300 | 425 | 395 | 263 | 55 | 12-Φ14 | |
| GI-400A | 400 | 510 | 480 | 320 | 60 | 435 | 16-Φ14 |
