Butterfly Valve for Hydroelectric Power Plant
蝶阀水电站
导言水电站的阀门：
阀是流体管的控制装置，其基本功能是连接或切断内部管道的介质循环，改变它的循环和流动介质的方向，调整压力和流量的介质中，保护管道设备的正常运行。 阀是管道的一个重要的控制组件。常见的进水阀水轮机：闸阀，蝶阀和球阀。
水电站主阀的设备都是进口蝶阀或入口球形阀涡轮机和配套膨胀节等; 当然，其他的普通阀门（如奶油，闸阀和止回阀）也用了不少。
类型和功能的水电站阀门：
| 蝶阀系列 | 公称通径： | DN100〜DN4600 |
 | 公称压力： | PN0.25〜4.0MP |
| 设计与MFG。 标准： | GB / T 122387-89 | |
| 结构尺寸标准： | GB12221-89 | |
| 法兰标准： | GB9113-2000，GB17241.6-1998 | |
| 测试标准： | GB / T 13927-92 | |
| 结构类型： | 杠杆式，垂直板，斜板 | |
| 操作型： | 手动，蜗轮传动，电动，气动，液动，电液联动 | |
| 球阀系列 | 公称通径： | DN300〜DN2000 |
 | 公称压力： | PN2.5〜14兆帕 |
| 设计与MFG。 标准： | GB12237，AP16D | |
| 结构尺寸标准： | GB12221，ANSI B16.10 | |
| 法兰标准： | GB9113 JB / T79，ANSI B16.5 | |
| 压力温度等级： | GB9131，ANSI B16.34 | |
| 焊接标准结尾： | GB12224，ANSI16.25 | |
| 测试标准： | GB / T13927，JB / T9092-99，API598 | |
| 结构类型： | 固定，浮动，灵活，直通，三通，直角 | |
| 操作型： | 手柄，齿轮，气动，电动 | |
| 闸阀系列 | 公称通径： | DN15〜DN1200 |
 | 公称压力： | PN0.25〜16.0MPa |
| 设计与MFG。 标准： | GB12234-89 | |
| 结构尺寸标准： | GB12221-89 | |
| 法兰标准： | JB / T79-94 | |
| 测试标准： | GB13927 | |
| 结构类型： | 楔式，平板式，明杆，暗杆 | |
| 操作型： | 手轮，伞齿轮，气动，电动 | |
| 截止阀系列 | 公称通径： | DN15〜DN1500 |
 | 公称压力： | PN1.6〜16.0Mpa |
| 设计与MFG。 标准： | GB12235 | |
| 结构尺寸标准： | GB12221 | |
| 法兰标准： | JB / T79 GB9113 HG20593-20635 | |
| 压力温度等级： | GB9131 JB / T74 HG20604 | |
| 测试标准： | GB13927 JB / T9092 | |
| 结构类型： | 直通，角式，直流式 | |
| 操作型： | 手轮，伞齿轮，气动，电动 | |
| 止回阀系列 | 公称通径： | DN15〜DN900 |
 | 公称压力： | PN26.0〜42.0MPA |
| 设计与MFG。 标准： | ANSIB16.34，E101 | |
| 结构尺寸标准： | ASME B16.10 E101 | |
| 压力温度等级： | ASME B16.34 E101 | |
| 测试标准： | API598 E101 | |
| 结构类型： | 规律，压力密封方式，减震模式 | |
| 减压阀系列 | 公称通径： | DN15〜DN600 |
 | 公称压力： | PN1.0〜为6.4MPa |
| 设计与MFG。 标准： | GB / T 3656-1994 | |
| 结构尺寸标准： | GB / T 12221-2005 | |
| 压力温度等级： | GB / T 12224-2005 | |
| 测试标准： | GB / T 13927-2008 | |
| 操作型： | 手动，蜗轮，气动，电动 |
Introduction for valve of hydropower station:
Valve is the control device of fluid pipe and its basic function is to connect or cut off the medium circulation inside pipeline, change the circulation and flow direction of medium, adjust pressure and flow of medium, protect the normal operation of pipeline equipments. Valve is an important control component of the pipeline.The common inlet valve for hydro turbine: gate valve, butterfly valve and spherical valve.
The main valve equipments in hydropower station are the inlet butterfly valve or inlet spherical valve for turbine and the supporting expansion joint etc; Of course other ordinary valves (like buttery valve, gate valve and check valve) are also used a lot.
Type and features for valve of hydropower station:
| Butterfly Valve Series | Nominal diameter: | DN100~DN4600 |
| Nominal pressure: | PN0.25~4.0MP |
| Design and MFG. standard: | GB/ T 122387-89 | |
| Structure size standard: | GB12221-89 | |
| Flange standard: | GB9113-2000, GB17241.6-1998 | |
| Test standard: | GB/ T 13927-92 | |
| Structure type: | Lever type, Vertical plate, Inclined plate | |
| Operated type: | Manual, Worm gear, Electric, Pneumatic, Hydraulic, Electro-hydraulic linkage | |
| Spherical Valve Series | Nominal diameter: | DN300~DN2000 |
| Nominal pressure: | PN2.5~14 MPa |
| Design and MFG. standard: | GB12237, AP16D | |
| Structure size standard: | GB12221, ANSI B16.10 | |
| Flange standard: | GB9113 JB/ T79 , ANSI B16.5 | |
| Pressure temperature rating: | GB9131, ANSI B16.34 | |
| Standard of welding ends: | GB12224, ANSI16.25 | |
| Test standard: | GB/ T13927, JB/ T9092-99, API598 | |
| Structure type: | Fixed, Floating, Flexible, Straight-through, Three-way, Right angle | |
| Operated type: | Lever, Gear, Pneumatic, Electric | |
| Gate Valve Series | Nominal diameter: | DN15~DN1200 |
| Nominal pressure: | PN0.25~16.0MPa |
| Design and MFG. standard: | GB12234-89 | |
| Structure size standard: | GB12221-89 | |
| Flange standard: | JB/ T79-94 | |
| Test standard: | GB13927 | |
| Structure type: | Wedge type, Flat type, Rising stem, The dark bar | |
| Operated type: | Handwheel, Bevel gear, Pneumatic, Electric | |
| Globe Valve Series | Nominal diameter: | DN15~DN1500 |
| Nominal pressure: | PN1.6~16.0Mpa |
| Design and MFG. standard: | GB12235 | |
| Structure size standard: | GB12221 | |
| Flange standard: | JB/ T79 GB9113 HG20593-20635 | |
| Pressure temperature rating: | GB9131 JB/ T74 HG20604 | |
| Test standard: | GB13927 JB/ T9092 | |
| Structure type: | Straight-through, Angle type, DC type | |
| Operated type: | Handwheel, Bevel gear, Pneumatic, Electric | |
| Check Valve Series | Nominal diameter: | DN15~DN900 |
| Nominal pressure: | PN26.0~42.0MPa |
| Design and MFG. standard: | ANSIB16.34, E101 | |
| Structure size standard: | ASME B16.10 E101 | |
| Pressure temperature rating: | ASME B16.34 E101 | |
| Test standard: | API598 E101 | |
| Structure type: | Regular pattern, Pressure sealed pattern, Damping pattern | |
| Pressure Reducing Valve Series | Nominal diameter: | DN15~DN600 |
| Nominal pressure: | PN1.0~6.4MPa |
| Design and MFG. standard: | GB/ T 3656-1994 | |
| Structure size standard: | GB/ T 12221-2005 | |
| Pressure temperature rating: | GB/ T 12224-2005 | |
| Test standard: | GB/ T 13927-2008 | |
| Operated type: | Manual, Worm gear, Pneumatic, Electric |
