| 1. | Thermostat main valve
恒温器主阀 |
| 2. | An approach to reset the main valve in the hydraulic control system of circuit breaker in gis
中断路器用液压系统控制主阀的复位方法 |
| 3. | The check valves shall be modular and shall seal to the main valve body by the use of an o - ring
止回阀应该是模块化，并通过一个o形环密封连接到主阀体上。 |
| 4. | The check valves shall be modular and shall seal to the main valve body by the use of an o - ring
这种止回阀应该是模块化的，并通过o形环密封连接到主阀阀体上。 |
| 5. | The main valve body shall be manufactured from 300 series stainless steel to provide corrosion resistance
主阀阀体应该采用具有耐腐蚀性能的300系列不锈钢制造。 |
| 6. | The main valve spindle incorporates an inner spindle for double regulation memory stop and valve position setting
主阀轴配置一个内轴，适用于双重调节止动记忆和阀门位置设置。 |
| 7. | This valve being mounted in the water distribution pipes with its pilot valve being pre - setted in a fixde flow - rate which enable the pressure variation of the main body ' s upper - reach not to have an effect on the flow volume of the outlet
本阀安装于送配水管路中，可预先设定其上之导向阀于某一固定流量，使其主阀进口压力变化而不会影响出水口。 |
| 8. | In chapter 3 , the design of each components of the integrated valve are introduced , which include the design of up and down main valves , pilot valves , single way valve and manual urgent descending valve and the safety valve
第三章完成了集成阀各个功能部件的设计和计算，包括上下行主阀、上下行先导阀、单向阀、安全阀等的设计计算。对决定集成阀性能的关键参数进行了理论分析和探讨。 |
| 9. | When the condensation of water increases , the bucket loses buoyancy and makes the machinery reversely seal to generate differential pressure , the main valve opens and obtains large displacement , steam equipment prompt starts to maximize the thermal efficiency of steam equipment
当凝结水量增大时，吊桶失去浮力使得机构反向密封而产生压差，主阀开启而获得大排量，用汽设备迅速启动，最大限度地发挥出用汽设备的热效率。 |
| 10. | The simulation shows that the valve throttle area should be little as possible but must be more than 40 % of pipe section area ; when the total length of pipe is same , and the flow quantity is enough , pipe before primary valve should be thin and long , and the pipe after primary valve should be thick and short , the upriver and downriver small pressure fluctuation will badly lead to waterdrammer pressure rising , and spending more time in establishing pressure and flow quantity
仿真表明,阀门过流面积在满足大于管道截面积40 %的条件下应尽可能小;在管道总长一定并满足流量要求的条件下,主阀前应采取长而细的管道,阀后则应采用短而粗的管道;上下游微小的压力波动都会严重增大开关阀门引起的水击,并使压力、流量的建立需要更长的时间。 |
