| ■ | LB型－高真空隔膜阀 | | | | | ■ | LB型高真空（压力）隔膜阀用于接通或切断真空（压力）系统管路中的介质流。应用于真空、乳制品、酒业、生物工程、食品、制药、饮料、化妆品及化工领域。 |
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| ■ | LB
High Vacuum（Pressure）Diaphragm Valve | | | | | ■ | LB high vacuum（pressure）diaphragm valve is used to put through or cut off the medium flow in vacuum（pressure）pipeline in the areas of vacuum, dairy products, breweries, biological engineering, foodstuff, pharmaceuticals, drinks, cosmetics and chemicals. |
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| ■ | 主要技术性能
Main Technical Performance | | | | | ■
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■ | | 阀门漏率：Valve Leak Rate | ≤1.3×10-4Pa.L/S. | | 适用温度：Applicable Temperature | -30～+150℃（氟橡胶） | | 适用范围：Applicability | | 连接型式 Loose Flange | 使用压力范围（Pa） | | 活套法兰（GB6070、JB919） | 0.6×106～1.3×10-4 | | 焊接法兰（GB6070、JB919） | 1.6×106～1.3×10-4 | | 快卸法兰（GB4982） | 0.1×106～1.3×10-4 | | 螺纹连接 Threaded Connection | 1.6×106～1.3×10-4 |
也可按用户要求的连接标准加工
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| ■ | 主要零件材料
Materials of Main Parts | | | | | ■
■ | 阀体、阀板、阀杆：不锈钢
隔膜：硅橡胶、氟橡胶
Body, disc and stem: stainless steel
Diaphragm: silicon rubber, Viton |
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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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| ■ | 活套法兰连接（GB6070）（图一） | | | | Model
型号 | DN | Do | D | n-φc | W | H/H1 | L | | LB-10 | 10 | 40 | 55 | 4-φ6.6 | 65 | 89/99 | 75 | | LB-16 | 16 | 45 | 60 | 4-φ6.6 | 80 | 89/99 | 108 | | LB-20 | 20 | 50 | 65 | 4-φ6.6 | 80 | 91/102 | 118 | | LB-25 | 25 | 55 | 70 | 4-φ6.6 | 80 | 110/123 | 120 | | LB-32 | 32 | 70 | 90 | 4-φ9 | 80 | 129/138 | 146 | | LB-40 | 40 | 80 | 100 | 4-φ9 | 120 | 139/159 | 150 | | LB-50 | 50 | 90 | 110 | 4-φ9 | 120 | 159/186 | 180 |
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| | ■ | 快卸法兰连接（GB4982）（图二） | | | | Model
型号 | DN | D1 | D | W | H/H1 | L | | LB-10 | 10 | 12.2 | 30 | 65 | 89/99 | 75 | | LB-16 | 16 | 17.2 | 30 | 80 | 89/99 | 108 | | LB-20 | 20 | 26.2 | 40 | 80 | 91/102 | 118 | | LB-25 | 25 | 26.2 | 40 | 80 | 110/123 | 120 | | LB-32 | 32 | 34.2 | 55 | 80 | 129/138 | 146 | | LB-40 | 40 | 41.2 | 55 | 120 | 139/159 | 150 | | LB-50 | 50 | 52.2 | 75 | 120 | 159/186 | 180 |
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| ■ | I型焊接管连接（图三） | | | | Model
型号 | DN | D | W | H/H1 | L | | LB-10 | 10 | 17 | 65 | 89/99 | 75 | | LB-25 | 25 | 32 | 80 | 110/123 | 120 | | LB-40 | 40 | 45 | 120 | 139/159 | 150 | | LB-50 | 50 | 57 | 120 | 159/186 | 180 |
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| | ■ | II型焊接管连接（图四） | | | | Model
型号 | DN | D | W | H/H1 | L | | LB-10 | 10 | 17 | 65 | 89/99 | 75 | | LB-25 | 25 | 32 | 80 | 110/123 | 120 | | LB-40 | 40 | 45 | 120 | 139/159 | 150 | | LB-50 | 50 | 57 | 120 | 159/186 | 180 |
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