1. Throttle valve: A throttle valve is a device used to regulate fluid flow. In a pipeline system, in order to maintain a certain value of medium throughput, it is necessary to control the fluid, which is called throttling. There are three types of commonly used throttle valves: orifice type, nozzle type, and venturi type.

2、分流器：分流器又稱三通或三通旋塞閥，它是一種可以改變流體流向的閥門；當(dāng)需要改變介質(zhì)流動方向時就可以使用分流器了。分流器的種類較多，主要有直通式、直角式和直流式三種形式。其中直通式的結(jié)構(gòu)比較簡單、體積?。恢苯堑慕Y(jié)構(gòu)簡單、加工方便；而直流式的結(jié)構(gòu)復(fù)雜且成本較高（但性能較好）。

2. Diverter: Diverter, also known as a three-way or three-way plug valve, is a valve that can change the flow direction of fluid; When it is necessary to change the flow direction of the medium, a splitter can be used. There are many types of diverters, mainly including straight through, right angle, and direct current. The straight through structure is relatively simple and has a small volume; The right angle has a simple structure and convenient processing; The direct current type has a complex structure and high cost (but good performance).

3、截止閥：截止止回球型閘門適用于水力及火力發(fā)電廠汽輪機(jī)冷凝液系統(tǒng)的啟閉和切斷工作以及其它類似工況的啟閉和關(guān)閉作業(yè)等場合.具有動作可靠、密封性能好等優(yōu)點(diǎn)。

3. Stop valve: The stop check ball gate is suitable for the opening, closing, and cutting off of the condensate system of steam turbines in hydraulic and thermal power plants, as well as other similar operating conditions. It has the advantages of reliable operation and good sealing performance.

4、蝶形止回球型閘門適用于水力及火力發(fā)電廠汽輪機(jī)冷凝液系統(tǒng)的啟閉和切斷工作以及其它類似工況的啟停和關(guān)閉作業(yè).具有動作可靠密封性能好等優(yōu)點(diǎn)。

4. The butterfly check ball gate is suitable for the opening, closing, and cutting of the condensate system of steam turbines in hydraulic and thermal power plants, as well as other similar working conditions. It has the advantages of reliable operation and good sealing performance.

5、隔膜式止回球型閘門用于水利電力系統(tǒng)中的水庫溢洪道泄洪排沙口等的啟閉操作；其特點(diǎn)是：重量輕強(qiáng)度高壽命長操作簡便安裝維修容易。

5. Diaphragm type check ball gates are used for the opening and closing operations of reservoir spillway and sediment discharge outlets in water conservancy and power systems; Its characteristics are: light weight, high strength, long lifespan, easy operation, easy installation and maintenance.

6、旋渦泵：旋渦泵是依靠旋轉(zhuǎn)葉輪所產(chǎn)生的強(qiáng)大吸力和壓力差來抽水的離心水泵。它是利用液體在旋轉(zhuǎn)過程中產(chǎn)生的離心力來工作的水泵品種之一。

6. Vortex pump: Vortex pump is a centrifugal water pump that relies on the strong suction and pressure difference generated by the rotating impeller to pump water. It is one of the water pump varieties that utilizes the centrifugal force generated by the liquid during the rotation process to work.

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