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船用外螺纹重块式快关阀 GB/T1850-84
船用外螺纹重垂式快关阀性能规范：Performance specification
| 公称压力Nominal Pressure(MPa) | 公称通径Nominal Diameter(mm) | 适用介质Applicable Medium |
| 2.5 | 10 - 32 | 燃油Fu el oil |
主要零部件材质Materials of Main Parts
| 零件名称Parts Name | 材料Material | |
| 名称Name | 牌号Marks | |
| 阀体、阀盖Body/Cover | 碳素钢Carbon Steel | Q235-A |
| 阀盘Disc | 优质碳索钢Good-quality Carbon Steel | 钢45 |
| 阀杆Stem | 不锈钢Stainless Steel | 2Cr13 |
| 手柄Handle | 球墨铸铁Nodular Cast lron | OT400-18 |
重块式快关阀基本尺寸Dimensions
| 公称通径 | 结构尺寸Structure Dimension | 螺纹接头Thread Joint | 扳手尺寸 | 重块手柄Weight handle | 升程 | 参考重量 | |||||||||
| DN(mm) | L | H≈ | Hi | D | Di | D2 | l | |1 | Wrench Size Si | Lo | S2 | d -≈ | po- | Lift Range -m | Weight(kg |
| 10 | 94 | 115 | 16 | M27×1 5 | 24.8 | 14 | 16 | 3 | 30 | 98 | 8 | 150 | 20 | 5 | 1.35 |
| 15 | 110 | 141 | 25 | M36×2 | 33 | 22 | 22 | 5 | 32 | 100 | 8 | 150 | 20 | 5 | 2.32 |
| 20 | 116 | 146 | 32 | M39X2 | 36 | 25 | 23 | 5 | 36 | 102 | 9 | 144 | 26 | 6 | 2.67 |
| 25 | 130 | 157 | 38 | M48×2 | 45 | 32 | 26 | 6 | 46 | 105 | 11 | 126 | 30 | 7 | 3.28 |
| 32 | 140 | 184 | 46 | M56×2 | 53 | 38 | 28 | 6 | 46 | 108 | 12 | 144 | 26 | 8 | 4.90 |
