Pneumatic diaphragm seat control valve, pneumatic control valve three, electric three shunt valve, regulating valve, pressure regulating valve, flow control valve, flow control, dynamic balancing valve, balancing valve, is a simple and intuitive flow regulating control device.
Regulating valve structure is composed of electric actuator or pneumatic actuator and valve body two parts. Straight travel mainly through single seat type and through engine type two, which have large flow capacity, unbalanced and stable operating characteristics, so it is usually suitable for high flow, low pressure drop and leakage occasions. Angular travel: V type electric control valve, pneumatic diaphragm valve, eccentric butterfly valve, etc.. This type of valve in the pipeline should generally be installed horizontally.
Application of flow control valve can be directly set according to the design flow in the network, the valve under the action of water flow, automatically eliminate the deviation of the remaining pipeline pressure head and pressure fluctuations caused by, no matter how the pressure changes in the system settings are maintained constant flow, the valve of these features make the pipe network flow control once completed, the transfer network work into a simple flow distribution, effective solution to the network hydraulic imbalance. Flow control valve is mainly used in: central heating (cold) and other water systems, so that the distribution of the flow of the pipe network, the elimination of water system hydraulic imbalance, to solve the problem of uneven heating and cooling, energy saving, power saving 15%-20%.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.
阀体:
阀体形式:直通双座铸造球型阀
公称通径:25~300mm
公称压力:PN1.6 4.0 6.4MPa
连接形式:法兰式按JB78-59 JB79-59
材 料:HT200 ZG230—450 ZG1Cr18Ni9Ti ZG0Cr18Ni12Mo2Ti
上阀盖:
常 温 型:-20℃~+200℃
散 热 型:-40℃~+450℃
压盖形式:螺栓压紧式
填 料:V型聚四氟乙烯填料、柔性石墨、不锈钢波纹管。
阀内组件:
阀芯型式:双导向双座柱塞型阀芯
流量特性:线性特性、等百分比特性或快开特性
材 料:1Cr18Ni9Ti 0Cr18Ni12Mo2Ti
执行机构:
型 式:多弹簧式薄膜执行机构
膜片材料:丁晴橡胶夹增强涤纶织物
弹簧范围:0.02~0. 1、0.04~0.20MPa
供气压力:0.14 0.16 0.28MPa
气源接头:M10×1
环境温度:-30~+70℃
阀作用型式:气——关式或气——开式
附 件:定位器,手轮机构
性 能:(带定位器)
泄 漏 量:小于额定流量系数Kv的0.5%
基本 误差:±1.5%
回 差:1.5%
死 区:0.6%
始终点偏差:±1.5%
可 调 范围:30:1
流量系数Kv和行程、允许压差:
公称通径(mm)
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
阀座直径(mm)
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
流量系数Kv
|
4
|
6.3
|
10
|
16
|
25
|
40
|
63
|
100
|
160
|
250
|
400
|
630
|
行程(mm)
|
16
|
25
|
40
|
60
|
允许压差(MPa)
|
5.8
|
4.9
|
3.8
|
2.9
|
4.0
|
3.3
|
2.6
|
3.6
|
3.0
|
2.3
|