产品描述 Product Description

1.进口多喷孔多功能控制阀，管网调流阀采用独特的设计方式，可消除水力能量，调节或控制流量而没有任何操作限制，解决了一般控制阀所不能解决的气蚀和震动问题 The imported multifunctional control valve with multiple spray holes and pipe network flow regulating valve adopts a unique design method, which can eliminate hydraulic energy, regulate or control flow without any operational restrictions, and solve the problems of cavitation and vibration that cannot be solved by ordinary control valves

2.稳定的水力操作原理，它可在任何可能的操作参数、最大的水流状态下，没有任何震动、噪音，甚至在此出口负压的情况下，也能操作 Stable hydraulic operation principle, which can operate at any possible operating parameter, maximum water flow state, without any vibration, noise, or even under negative pressure at this outlet

3.可以同大型远程监控系统（PLC）配套使用，由此远程监控系统可以用时间模组进行监控、协调并操作配送管网系统中，解决了一般标准的旋转型或球型控制阀的一定程度的操作限制It can be used in conjunction with large remote monitoring systems (PLCs), allowing remote monitoring systems to use time modules for monitoring, coordination, and operation in distribution pipeline systems, solving a certain degree of operational limitations of general standard rotary or ball control valves

主要技术性能（Main technical parameter）

工作原理 Working principle

扇叶圈式用于小压差工况 Fan ring type is used for small pressure differential condition

鼠笼式用于大压差工况 Rat cage type is used for large pressure difference working condition

特点

多功能活塞是一种新型阀门，具有多种调节及控制功能。主要有：水位控制、减压、止回、泄压、流量控制、以及坝底排空泄水等功能。最大进出口压差可达40kg/cm²尤其在大口径、高压力和大压差的工况更显现出其优越的调节和控制功能。

The multifunctional piston is a new type of valve with multiple adjustment and control functions. The main functions include: water level control, pressure reduction, check, pressure relief, flow control, and dam bottom emptying and drainage. The maximum inlet and outlet pressure difference can reach 40kg/cm ² Especially in the working conditions of large caliber, high pressure, and large pressure difference, it demonstrates its superior regulation and control functions.

1、消除水力能量：本阀是利用一个特殊速度导引装置，沿着套筒作水平运动，以保持各点压力一致。当经过各个喷孔喷出的所有水柱在阀中心轴线上相互对撞时，因各点喷孔处压力一致，水柱对撞后速度能量可完全消失。
eliminate hydraulic energy: the valve is using a special speed guide device, along the sleeve for horizontal movement, to keep the pressure of each point consistent. When all the water columns ejected through each nozzle collide with each other on the central axis of the valve, the velocity energy of the water column can disappear completely due to the same pressure at the nozzle at each point

2、消除震动、噪音与气蚀：本阀采用了先进的特殊设计技术，在喷嘴之前已将水头损失降低，同时将气蚀现象集中在套筒中心，并由水包围着，此时在水中产生的气泡很不稳定并在水中破裂，但不会在阀壁上破裂，由此可消除震动、气蚀、噪音，避免阀门的损坏 eliminate vibration, noise and erosion: the valve adopted advanced special design technology, before the nozzle has reduced the head loss, and the erosion phenomenon in the center of the sleeve, and surrounded by water, at this time in the water bubble is not stable and rupture in the water, but not on the valve wall, which can eliminate vibration, erosion, noise, avoid the damage of the valve

3、无起动流速限制，即使有部份水流堵塞 no starting flow rate limit, even if there is a part of the water blockage


4、适合遥控或远程PLC监控系统，实现产品的自动化 suitable for remote control or remote PLC monitoring system, to realize the automation of products.

5、没有背压的需求，也可采用低水头损失型，可直接排放至大气中there is no back pressure demand, can also use the low head loss type, can be directly discharged into the atmosphere


6、特殊的旋转式驱动，可减少多方面阻力束缚special rotary drive, can reduce various resistance constraints.

选择适当的活塞控制阀Select the appropriate piston control valve

鼠笼是活塞的带孔延伸，倒流孔数和形状根据操作工况而定，介质（水）通过鼠笼外周节流成为多股高速流体，沿径向向鼠笼圆周中心喷射互相撞击，由此将气蚀限定在鼠笼中心而此外没有任何材料被损坏，动能因对撞而消失。

The rat cage is the extension of the piston, the number and shape of the backflow holes according to the operating conditions, the medium (water) becomes multiple high-speed fluid through the peripheral throttle of the cage, and strikes each other along the radial direction to the peripheral center of the cage, thus limiting the corrosion of the cage without any material is damaged, and the kinetic energy disappears due to the collision.

主要零部件材质：MAIN PARTS MATERIALS

压损系数K（Loss of pressure）

全开时的压头损失：△P=K·p/2·V2

公式中：△P为压头损失，单位Pa。V为流速，单位m/s。K为压损系数。p为密度，单位Kg/m³。

Pressure head loss when fully open:△P=K·p /2·V2

in formula：△P is pressure head loss， its unit is Pa. V is flow velocity， its unit is m/s. K is pressure loss coefficient. p is density， its unit is Kg/m³。

注意事项（Note）

1、建议阀前直管长度至少为3~5倍阀门的直径，下游直管长度至少为5~10倍阀门的直径。

2、作放空阀时，如直接排空，应加强法兰；如不直接排空，应在下游提供一吸气口。

1、Suggestion that the length of the straight pipe before the valve should be at least 3-5 times of the diameter of valve, while the length of straight pipe at downstream shouldbe at least 5-10 times of valves'diameter

2、When it is functioned as atmospheric valve,flange should bestrengthed if empty directly. If not empty directly, air entry should be offered in the downstream