413-21 (截止阀) / 1413-21 (角阀)
增压泵控制阀 / 机械提升式止回阀
413-21 (Globe) / 1413-21 (Angle)
BOOSTER PUMP CONTROL / MECHANICAL LIFT CHECK

　　通过在泵开和关时电磁阀所进行的开启和关闭来操作泵控制阀。配置机械提升式止回阀，当阀门出现流量停止时关闭阀门，防止倒流。通过限制开关总成，阀门和泵的运行是相互作用，相互影响的。
　　Solenoid operated pump control for controlled opening and closing on pump start-up and shut-down. Equipped with mechanical lift check feature to close valve the moment flow stops, preventing reverse flow. Valve and pump operations are interlocked by a limit switch assembly.

　　注：
　　激发开启阀门。
　　在订购时，请告知工厂实际系统工作压力，以便正确进行电磁阀选型。
　　标准配置为110-120伏交流电，50-60赫兹
　　选项：可提供所要求的电压
　　电磁阀外壳NEMA 1, 2, 3, 3S, 4, 4X
　　标准配置为手动操作
　　限制开关外壳为通用用途
　　标准配置为可调节开启和关闭速度。
　　NOTE:
　　Energized to open valve.
　　At time of order, advise factory actual system working pressure for correct solenoid selection.
　　110-120 VAC, 50-60 Hz standard
　　Optional: specify voltage required.
　　Solenoid enclosure NEMA 1, 2, 3, 3S, 4, 4X
　　Manual operator standard
　　Limit switch enclosure general purpose
　　Standard with adjustable opening and closing speed.

　　快速选型：阀门通径与管道口径相同。
　　QUICK SIZING: Valve size same as line.

需要考虑的因素
Points to consider:

• 参阅技术参数 - 流量表
  Refer to Engineering Data – Flow Capacity Chart
• 所需流量的压降
  参阅技术参数 - 压降表
  Pressure drop at required flow
  Refer to Engineering Data – Pressure Drop Chart

关闭阀门 开启阀门 CLOSES VALVE OPENS VALVE

到大气中
加速器排放盖
To Atmosphere
Drains Cover of Accelerator

流向：在阀座下方流动
Flow Direction: Flow Under the Seat