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A800 High-Precision Pilot-Operated Differential Pressure Control Valve with Dual-Chamber Design
| Place of Origin | China |
|---|---|
| Brand Name | YOUWEI |
| Payment Terms | T/T |
Product Details
| Material | Casting,Brass,Stainless Steel,Ductile Iron,GGG40 | Port Size | DN50-DN1200,Standard,2"-24",DN50-800,3/4" |
|---|---|---|---|
| Power | Manual,Electrical Actuated,Hydraulic,Handwheel Operated,GO | Pressure | Medium Pressure,Low Pressure,PN10-16,PN1.0/PN1.6,250PSI |
| Temperature Of Media | Medium Temperature,Normal Temperature,Low Temperature,-10~100℃ | Media | Water,Oil Etc.,Gas And So On |
| Application | General,irrigation,water Distribution,Industry,Water System | Standard Or Nonstandard | Standard |
| Standard | DIN,BS,JIS,F5;AWWA C509/C515;ANSI,DIN3352 | Connection | Flange Ends,Double Flanged |
| Body Material | Ductile Iron,DI/CI,DI,cast Iron,Brass | Color | Blue, Customer's Request,Customer's Requirement |
| Medium | Water,Water Oil Gas | Valve Type | Control Valve |
| Seal | Rubber Lined,Metal,PTFE | ||
| Highlight | High-Precision Differential Pressure Control Valve,Pilot-Operated DPCV,Dual-Chamber Design Pressure Control Valve |
||
Product Description
A800 High-Precision Differential Pressure Control Valve (DPCV)
Intelligent Pressure Management Solutions
The A800 Differential Pressure Control Valve is a sophisticated hydraulic solution designed to maintain a constant pressure differential between two points in a circulating system. It is the optimal choice for addressing:
- System Instability: Eliminating noise and flow fluctuations in HVAC and cooling circuits
- Energy Inefficiency: Optimizing pump performance by preventing excessive pressure build-up
- Equipment Protection: Safeguarding sensitive heat exchangers and chillers from pressure surges
Core Technical Specifications
| Feature | Technical Detail / Value Proposition |
|---|---|
| Model Series | A800 Differential Pressure Pilot-Operated Valve |
| Control Logic | Independent Diaphragm-Actuated Differential Pilot |
| Monitoring Components | Integrated Dual Pressure Gauges (Upstream/Downstream) |
| Fine-Tuning Capability | External Adjusting Screw for Precise Set-point Calibration |
| Isolation Mechanism | Auxiliary Mini-Ball Valves for Gauge maintenance |
| Connection Standard | ANSI / DIN / JIS Heavy-Duty Flanged Ends |
Why Engineers Prefer the A800 Series
- Pilot-Operated Precision: Unlike direct-acting valves, the A800 uses a pilot system that responds to minute pressure changes, ensuring a stability margin within ± 2% of the set value
- Integrated Monitoring Hub: Built-in dual gauges allow for real-time visual diagnostics without requiring additional pipe tapping
- Dual-Chamber Design: The reinforced diaphragm chamber provides a smoother response and prevents the "water hammer" effect during rapid flow changes
- Robust Protective Coating: Industrial-grade blue epoxy prevents cavitation damage and external corrosion in damp mechanical rooms
Authoritative Use Cases
- District Heating/Cooling: Balancing supply and return pressure in large-scale HVAC loops
- Automatic Pumping Stations: Acting as a bypass control to maintain pump curve efficiency
- Multi-Zone Irrigation: Ensuring constant pressure across varying elevations and distances
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