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E-mail
shghfmc@163.com
- Phone
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Address
Industrial Park, Songjiang District, Shanghai
Shanghai Guanhuan Valve Manufacturing Co., Ltd
shghfmc@163.com
Industrial Park, Songjiang District, Shanghai
Produced by Shanghai Guanhuan Valve Manufacturing Co., LtdSelf operated flow control balance valve (with lock)Self operated flow control valve is a new type of regulating valve, which has the advantage of being able to automatically adjust compared to manual regulating valves; Compared to electric regulating valves, its advantage is that it does not require external power. Practical application has shown that in closed water circulation systems (such as hot water heating systems, air conditioning refrigeration systems), the correct use of this valve can easily achieve flow distribution in the system; Can achieve dynamic balance of the system; It can greatly simplify the debugging work of the system; Can stabilize the working state of the pump, etc. Therefore, self regulating valves have broad application prospects in heating and air conditioning engineering.
Characteristics of self operated flow control balance valve:
This valve is mainly used in industrial and civil building heating pipeline systems. At present, there is a problem of hydraulic imbalance in some pipeline systems, and balance valves provide a solution to this problem. They can accurately adjust pressure drop and flow rate to improve the liquid flow situation in the pipeline system, achieve liquid balance in the pipeline system, and save energy.
In the renovation of the double pipe network project, the application of this valve can still save energy and achieve good results. It can be inferred that if the opening degree has an equal rate of change, then the rate of change in flow rate is equal. Its characteristic is that when the opening degree is large, the flow rate is large, and when the opening degree is small, the flow rate is small. In engineering, it is mostly applied when the flow rate is high, and this requirement is met when the percentage valve is agreed upon. Based on this characteristic, a certain flow rate can be freely preset (fast opening valves and linear valves do not have this function), and when changes are needed, the amount of change can also be known. Achieve the ideal state.
installation and debugging
1The flow direction of the medium should be consistent with the flow arrow of the valve body;
2After installation, set the flow rate according to the requirements of the connected pipeline;
3Check if the pressure difference at both ends of the valve is within the working pressure range;
4Try to avoid the valve working at the minimum flow state as much as possible;
5There is no drain screw on the spring cover, and it should be drained regularly.
Main technical parameters
Nominal pressure (MPa) |
Shell test pressure (MPa) |
Applicable Temperature |
Applicable Medium |
1.6 |
2.4 |
≤100℃ |
Non corrosive liquids such as water and oil |
Main connection dimensions
|
Nominal Diameter (mm) |
Size (mm) |
||
L |
H1 |
H2 |
|
15 |
110 |
122 |
70 |
20 |
110 |
122 |
70 |
25 |
115 |
137 |
74 |
32 |
160 |
182 |
91 |
40 |
200 |
191 |
147 |
50 |
215 |
197 |
147 |
65 |
230 |
205 |
154 |
80 |
275 |
259 |
181 |
100 |
290 |
268 |
211 |
125 |
315 |
334 |
227 |
150 |
350 |
357 |
260 |
200 |
430 |
407 |
303 |
250 |
520 |
452 |
367 |
300 |
635 |
486 |
430 |
350 |
670 |
555 |
495 |