The Self-operated Differential Pressure Regulating Valve collects differential pressure signals from both sides of the pipeline through pressure sensing lines and automatically balances system pressure differences.
It eliminates flow imbalance caused by pipeline pressure fluctuations and maintains stable differential pressure in branch circuits.
The symmetrical dual pressure ports provide sensitive pressure detection. The internal spring compensation mechanism allows factory preset differential pressure values without additional adjustment instruments during installation.
The streamlined low-resistance valve body prevents blockage and is suitable for closed-loop circulation systems. The compact structure supports horizontal and vertical installation. Maintenance can be completed by removing the upper valve cover to replace internal sealing components, significantly reducing downtime.
It is widely applied in central air conditioning water systems, urban heating secondary networks, chemical cooling circulation systems, lithium battery cooling loops, purified water pipelines, and metallurgical equipment cooling systems.
Huizheng Standardized Service Process
1. Pre-sales Technical Support
After receiving operating conditions such as medium, pressure, temperature, and flow requirements, Huizheng engineers provide professional calculation reports and product selection solutions.
Customized structures and special materials are available according to project requirements.
2. Production Visualization
During manufacturing, customers receive valve pressure testing videos, finished product photos, and packing details. Export orders include complete customs documents, while production progress is updated regularly.
3. After-sales Technical Service
The professional after-sales team provides full logistics tracking and technical support. If products are damaged during transportation, remote video guidance is provided for repair. Replacement parts can be delivered quickly when necessary.
Free technical consultation for valve selection and system optimization is available for long-term cooperation.
Basic Parameters
|
Parameter |
Specification |
|
Nominal Size |
DN20~DN300 |
|
Pressure Rating |
PN10/PN16/PN25 |
|
Differential Pressure Range |
0.02MPa~1.0MPa adjustable |
|
Differential Pressure Accuracy |
±10% rated differential pressure |
|
Valve Body Material |
Ductile iron, WCB, 304 stainless steel |
|
Pressure Sensing Method |
External dual impulse pressure lines |
|
Applicable Media |
Cold water, hot water, thermal oil, non-corrosive liquids |
|
Medium Temperature |
0℃~200℃ |
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