丹富斯多功能水泵控制閥是一種新型的水力控制閥門，其一閥可以代替電動的閘閥、止回閥、水錘消除器這3種裝置的。其可以自動實現開泵的時候的緩開，停泵的時候的速閉、緩閉，不用任何電氣控制，也不用其它動力、人力，更不用油壓裝置。

丹富斯多功能水泵控制閥的工作原理有介紹：

1、多功能水泵控制閥在啟動前，閥門的出口端的壓力作用于上閥板上，閥門是處于關閉的位置的。同時，膜片控制器的上腔是連通壓力水的，下腔是和閥門的進口端的低壓是相通的。

2、多功能水泵控制閥在啟動后，閥門的進口壓力慢慢的升高，同時，壓力水是經過閥門的進口端的連接管慢慢的進入膜片控制器的下腔，實現上閥板的慢慢的開啟，開啟速度是可以根據控制閥進行調節的。

3)、多功能水泵控制閥在停機的時候，閥門的進口壓力降低了，當接近零流量的時候，上閥板在自身重力的作用下是馬上關閉的。

4)、由于閥門的進口端壓力降低了，閥門的出口端的壓力水是經過連接管進入膜片控制器的上腔，下腔水是經過閥門的進口端的連接管壓回到閥門的進口端，緩閉閥板就會慢慢的關閉，慢關的時候是可以根據控制閥進行調節的。上閥板的速閉、緩閉閥板的緩閉是*符合兩階段的關閉規律的，是可以有效地消除水錘的。

丹富斯多功能水泵控制閥具有以下幾點優點：

(1)不用操作進行控制的。不需要使用水泵啟、停的時候，其閥門的前、后的水壓差當做控制動力，其具有隨著水泵的啟、閉而自動啟、閉的功能的。

(2)閥門在啟、閉在動作的過程中，是可以有效地由于防止水錘的壓力波升高，導致事故的發生。根據現場的使用情況的調查得知，停泵水錘的壓力峰值都在工作壓力的1.3倍以內。

(3)不需要現場調試，多功能水泵控制閥的適用工況的范圍比較廣泛。

(4)通常是不用維修的。正因為一閥可以代替三閥，其檢修的工作量就會減少的。

Dan fuss multifunctional water pump control valve is a new type of hydraulic control valves, one valve can replace the electric gate valves, check valves, water hammer eliminator three devices. It can automatically when opening the pump slow, stop the pump when the speed, hydraulic slowly-closing closed, without any electrical control, no other power, human, not to mention oil pressure device.

Dan fuss multifunctional water pump control valve working principle is:

1, multi-function water pump control valve before the start, the valve outlet pressure acting on the valve plate, the valve is in the closed position. At the same time, the diaphragm of the controller on the cavity is connected pressure of water, is inferior vena and import the low pressure valve are interlinked.

2, multi-function water pump control valve after the start, the increase of the inlet pressure to the valve slowly, at the same time, the pressure water is through the valve inlet side connecting pipe slowly into the inferior vena diaphragm controller, in the implementation of valve plate slowly open, open the speed can be adjusted according to the control valve.

3), multi-function water pump control valve at the time of outage, the valve inlet pressure is reduced, when close to zero flow on valve plate under the action of its own gravity is closed right now.

4), due to the inlet side of the valve pressure is reduced, the valve outlet pressure water is through the connecting pipe into the diaphragm on the cavity of the controller, inferior vena water is through the valve inlet side connecting pipe back to the inlet side of the valve, pressure slowly-closing valve plate will slowly shut down, slowly closing time can be adjusted according to the control valve. On the quick closing valve plate, slowly closing valve plate slowly-closing is compley accords with the closing law of two phase, can be effectively eliminate water hammer.

Dan fuss multifunctional water pump control valve has the following advantages:

Don't (1) to control the operation. Don't need to use the water pump when opening and stop, before and after the valve in the hydraulic pressure difference as control power, it has with the opening and closing of the pump automatic opening and closing.

(2) in the opening and closing valve in the process of action, can be effectively increased due to prevent water hammer pressure wave, lead to accidents. According to the usage of the scene investigation, stop the pump water hammer pressure peak are within 1.3 times the working pressure.

(3) do not need the scene debugging, the suitable operating mode of multifunctional water pump control valve range more widely.

(4) is usually without maintenance. Because of a valve can replace three valve, it can reduce the maintenance workload.