丹富斯多功能水泵控制阀是一种新型的水力控制阀门，其一阀可以代替电动的闸阀、止回阀、水锤消除器这3种装置的。其可以自动实现开泵的时候的缓开，停泵的时候的速闭、缓闭，不用任何电气控制，也不用其它动力、人力，更不用油压装置。

丹富斯多功能水泵控制阀的工作原理有介绍：

1、多功能水泵控制阀在启动前，阀门的出口端的压力作用于上阀板上，阀门是处于关闭的位置的。同时，膜片控制器的上腔是连通压力水的，下腔是和阀门的进口端的低压是相通的。

2、多功能水泵控制阀在启动后，阀门的进口压力慢慢的升高，同时，压力水是经过阀门的进口端的连接管慢慢的进入膜片控制器的下腔，实现上阀板的慢慢的开启，开启速度是可以根据控制阀进行调节的。

3)、多功能水泵控制阀在停机的时候，阀门的进口压力降低了，当接近零流量的时候，上阀板在自身重力的作用下是马上关闭的。

4)、由于阀门的进口端压力降低了，阀门的出口端的压力水是经过连接管进入膜片控制器的上腔，下腔水是经过阀门的进口端的连接管压回到阀门的进口端，缓闭阀板就会慢慢的关闭，慢关的时候是可以根据控制阀进行调节的。上阀板的速闭、缓闭阀板的缓闭是*符合两阶段的关闭规律的，是可以有效地消除水锤的。

丹富斯多功能水泵控制阀具有以下几点优点：

(1)不用操作进行控制的。不需要使用水泵启、停的时候，其阀门的前、后的水压差当做控制动力，其具有随着水泵的启、闭而自动启、闭的功能的。

(2)阀门在启、闭在动作的过程中，是可以有效地由于防止水锤的压力波升高，导致事故的发生。根据现场的使用情况的调查得知，停泵水锤的压力峰值都在工作压力的1.3倍以内。

(3)不需要现场调试，多功能水泵控制阀的适用工况的范围比较广泛。

(4)通常是不用维修的。正因为一阀可以代替三阀，其检修的工作量就会减少的。

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.