品牌：RETZ瑞茨/美國，我們一直致力于流體控制領域的持續創新，始于2005……

性能：限制水泵工作流量，防止水泵過載，停泵時回流的作用

Performance: Limit the working flow of the water pump, prevent overload of the water pump, and prevent backflow during pump shutdown

產品詳情 Product details

限流止回閥主要用于多泵并聯且采用改變臺數的方式進行流量調節的供水系統中，它安裝在水泵的出口，能起限制水泵流量、穩定揚程的作用，可使水泵工作在高效區內，防止低揚程大流量水泵過載燒壞電機。同時該閥還具有止回緩閉功能，能顯著減小水錘。

The flow limiting check valve is mainly used in water supply systems where multiple pumps are connected in parallel and flow is adjusted by changing the number of units. It is installed at the outlet of the water pump, which can limit the flow of the water pump and stabilize the head. It can make the water pump work in an efficient area and prevent the low head and large flow water pumps from overloading and burning the motor. At the same time, the valve also has a check and slow closing function, which can significantly reduce water hammer.

進口限流止回閥結構特點 Structural characteristics

1.限流功能：安裝于水泵出口，在單泵啟動和非全數設計工作時，多工作泵起限制流量作用 2.泵在較高效率狀態下工作：防止電動機受水泵低揚程、大流量、低效率時，發生過載現象 3.防止超額定電流燒電機現象的發生，同時起到一定的節能效果

4.止回功能，該閥的止回功能完全等同于微阻緩閉止回閥，且無關閉噪音，零回流。此閥主要用于多泵并聯使用時安裝與水泵壓出口，起限制水泵工作流量，防止停泵回流作用 Check 5.限制揚程可調范圍0.1-0.6 Mpa，出廠時設定在0.1 Mpa

進口限流止回閥技術規范 Technical specifications

公稱通徑：DN50~DN500

適用溫度：0℃~100℃

工作壓力：1.0Mpa,1.6Mpa,2.5Mpa

動作壓力：≤0.05Mpa

結構形式：膜片式

閥體材質：球墨鑄鐵、碳鋼、不銹鋼

膜片材質：丁腈橡膠

適用介質：原水，清水，油及性質接近水的液體