| | | | ■ | GD型高真空挡板阀用于接通或切断真空管路中的气流。适用介质为纯净空气和非腐蚀性气体。按轴封结构可分GD-J型橡胶轴封和GD-J(b)型波纹管轴封两种。按通导形式可分GD-J为角通型式，GD-S为带预抽口的三通型式。 |
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| ■ | 主要技术性能
Main Technical Performance | | | | | ■
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■ | | 适用范围：Applicability | 105～1.3×10-4Pa(轴封为橡胶)
105～1.3×10-5Pa(轴封为波纹管) | | 阀门漏率：Valve Leak Rate | ≤1.3×10-4Pa.L/S.(轴封为橡胶)
≤1.3×10-5Pa.L/S.(轴封为波纹管) | | 适用温度：Applicable Temperature | -25～+80℃(丁腈橡胶)
-30～+150℃(氟橡胶) |
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| ■ | 主要零件材料
Materials of Main Parts | | | | | ■
■ | 阀体、阀盖、阀杆：铝合金、碳钢或不锈钢
密封件：丁腈橡胶、氟橡胶、波纹管(轴封)。
Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
Sealing element: NBR, Viton, bellows(shaft seal) |
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| CONSTRUCTION FIGHTS(mm) |
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| ■ | 外形及连接尺寸(mm)
Overall and Connection Dimensions(mm) |
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| ■ | 快卸法兰连接 | | | Model
型号 | DN | D1 | D | A | H | P | 法兰标准 | GD-J10(b) | 10 | 12.2 | 30 | 40 | 124.5 | 60 | GB4982 | GD-J16(b) | 16 | 17.2 | 30 | 40 | 124.5 | 60 | GD-J25(b) | 25 | 26.2 | 40 | 50 | 134.5 | 78 | GD-J32(b) | 32 | 34.2 | 55 | 58 | 153 | 78 | GD-J40(b) | 40 | 41.2 | 55 | 65 | 160.5 | 78 | GD-J50(b) | 50 | 52.2 | 75 | 70 | 203 | 78 |
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| ■ | 活套法兰连接 | | | Model
型号 | DN | D1 | Do | D2 | A | P | H | n-φc | Dny预抽口 | 法兰标准 | GD-J50 | 50 | 110 | 90 | 55 | 70 | 78 | 203 | 4-φ9 | | GB6070 | GD-J63 | 63 | 130 | 110 | 68 | 88 | 160 | 380 | 4-φ9 | | GD-J80 | 80 | 145 | 125 | 85 | 98 | 160 | 400 | 8-φ9 | | GD-J100 | 100 | 165 | 145 | 105 | 108 | 160 | 420 | 8-φ9 | | GD-J(S)160 | 160 | 225 | 200 | 165 | 158 | 160 | 575 | 8-φ11 | DN40 GB4982 | GD-J(S)200 | 200 | 285 | 260 | 208 | 200 | 160 | 655 | 12-φ11 | DN50 GB6070 | GD-J(S)250 | 250 | 335 | 310 | 258 | 208 | 250 | 690 | 12-φ11 | DN63 GB6070 | GD-J(S)320 | 320 | 425 | 395 | 328 | 250 | 250 | 785 | 12-φ14 | DN80 GB6070 | GD-J(S)150 | 150 | 220 | 195 | 156 | 158 | 160 | 575 | 8-φ12 | DN40 GB4982 | JB919 | GD-J(S)300 | 300 | 380 | 350 | 308 | 250 | 250 | 785 | 8-φ14 | DN80 GB6070 | JB919 |
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