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The EDRV dynamic balance electric control valve is a new type of valve that integrates dynamic balance and electric regulation functions. It is mainly used in variable flow systems, especially in the fields of HVAC, chemical, petroleum, etc. It performs outstandingly
The following is a summary of its core characteristics and working principles:
1、 Core Features
dynamic equilibriumHVAC pressure differential dynamic balance valve, water flow control, electric regulating valvefunction
By automatically adjusting the opening of the valve core, the pressure difference (P2-P3) at both ends of the valve body is maintained constant, ensuring that the flow is not affected by system pressure fluctuations
The valve weight tends towards 1, and the actual flow characteristic curve is consistent with the ideal curve, with high adjustment accuracy,
Energy-efficient
Compared to traditional systems, it saves 6% -20% energy, has shorter debugging time, and higher operating efficiency,
Only consumes electricity during work, has no carbon emissions, and meets environmental protection requirements,
stable and reliable
The flow changes of end devices do not interfere with each other, and the temperature regulation accuracy is higher,
The working temperature range is wide (-29 ℃~+150 ℃), and the lifespan can reach more than ten years,
2、 Working principleHVAC pressure differential dynamic balance valve, water flow control, electric regulating valve
Pressure fluctuation compensation
When the inlet pressure P1 increases, the valve core moves upward to reduce the opening of P1-P2 and decrease P2; otherwise, the opening is increased to maintain a constant pressure difference between P2-P3,
electric adjustment
The linear or angular actuator receives control signals, drives the valve core to change the opening, and precisely adjusts the flow rate,
3、 Technical parameters
Nominal Diameter: DN25~DN250
work pressure: PN16~2.5MPa
Flow error:≤5%
materialThe valve body is made of gray cast iron/stainless steel, and the internal components are made of brass or stainless steel
4、 Application scenarios
HVAC (Heating, Ventilation, and Air Conditioning)Temperature control for end devices such as air conditioning units and fresh air handling units
industrial sectorVariable flow systems for chemical, power, water supply and drainage industries
valve body |
ductile cast iron |
Electric actuator housing |
aluminum alloy |
valve sleeve |
stainless steel |
valve core |
brass |
Technical Specifications:
Product Model |
valve type |
specification |
pressure differential range (KPa) |
flow range (m0/h) |
work pressure |
traffic error |
fluid temperature |
D-EDRV1 |
二通 |
DN25 |
30-300 |
0.2-2.9 |
PN16 |
5% |
0-100℃ |
D-EDRV2 |
DN32 |
30-300 |
0.5-4-7 |
D-EDRV3 |
DN40 |
30-300 |
1-7-7 |
D-EDRV4 |
DN50 |
30-300 |
2-12.1 |
D-EDRV8 |
DN65 |
30-300 |
3-20.4 |
D-EDRV9 |
DN80 |
30-300 |
5-30.8 |
D-EDRV10 |
DN1OO |
30-300 |
10-45.3 |
D-EDRV11 |
DN125 |
30-300 |
15-70-7 |
D-EDRV12 |
DN150 |
30-300 |
20-101.8 |
D-EDRV13 |
DN200 |
33-300 |
5.0-360 |
D-EDRV14 |
DN250 |
22-210 |
4.O-460 |
Product Model |
valve type |
specification |
Appearance and installation dimensions (mm) |
L |
H1 |
H2 |
D(φ) Flanges |
Gthread |
D-EDRV1 |
二通
threaded port
|
DN25 |
160 |
265 |
70 |
|
G1 |
D-EDRV2 |
DN32 |
180 |
275 |
70 |
|
G1-1/4 |
D-EDRV3 |
DN40 |
300 |
290 |
90 |
|
G1-1/2 |
D-EDRV4 |
DN50 |
300 |
290 |
90 |
|
G2 |
D-EDRV5 |
二通
flange
|
DN32 |
160 |
220 |
70 |
1OO |
|
D-EDRV6 |
DN40 |
200 |
235 |
110 |
110 |
|
D-EDRV7 |
DN50 |
215 |
230 |
115 |
125 |
|
D-EDRV8 |
DN65 |
230 |
238 |
120 |
145 |
|
D-EDRV9 |
DN80 |
275 |
275 |
146 |
160 |
|
D-EDRV10 |
DNl00 |
290 |
295 |
165 |
180 |
|
D-EDRV11 |
DNl25 |
315 |
307 |
208 |
21O |
|
D-EDRV12 |
DNl50 |
350 |
326 |
205 |
240 |
|
D-EDRV13 |
DN200 |
430 |
715 |
295 |
295 |
|
D-EDRV14 |
DN250 |
520 |
740 |
345 |
355 |
|
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