



Drain Valves
Zero Air Loss Automatic Drain Valve
ENHUI zero air loss automatic drain valves remove condensate from compressed air systems without wasting compressed air. Suitable for air compressors, filters, dryers, and industrial applications.
Zero Air Loss Automatic Drain Valve
Automatic Condensate Removal Without Compressed Air Loss
Compressed air systems naturally generate condensate during compression and cooling processes. If water accumulates inside air receivers, filters, or dryers, it may lead to corrosion, pressure instability, and reduced equipment reliability.
Zero Air Loss Automatic Drain Valves provide an efficient solution by automatically removing accumulated condensate while preventing unnecessary compressed air loss.
Designed for compressed air systems, these drains help improve energy efficiency, reduce maintenance requirements, and protect downstream pneumatic equipment.
How It Works
Unlike traditional timer-controlled drains that release compressed air during each drainage cycle, the ENHUI zero-loss drain uses a mechanical control mechanism to discharge only accumulated liquid.
When condensate reaches a certain level, the internal valve opens automatically and releases water, oil, and contaminants. After drainage is completed, the valve closes to maintain system pressure.
No electricity required.
No compressed air wasted.
No manual operation needed.
Key Benefits
Zero Compressed Air Loss
The drain valve releases condensate only when necessary, avoiding continuous air leakage and reducing energy consumption.
Large Flow Passage Design
The large internal flow passage helps prevent clogging caused by oil sludge, rust particles, and pipeline contaminants, ensuring reliable condensate discharge.
Double-Layer Filtration Design
The integrated filtration structure helps prevent large particles and contaminants from affecting valve operation, improving reliability.
Automatic Cleaning Function
The built-in automatic cleaning mechanism helps maintain stable operation and reduces the risk of valve blockage caused by impurities.
Automatic Operation
The mechanical float-controlled design automatically detects condensate accumulation and performs drainage without manual adjustment.
Corrosion Resistant Construction
Made with corrosion-resistant materials, the drain valve is designed for long-term operation in demanding compressed air environments.
Durable & Long Service Life
The robust mechanical structure provides reliable performance and extended service life with minimal maintenance.
Product Features
Specification | Value |
|---|---|
Model | WBK-58 |
Body Material | Aluminum Alloy |
Inlet Port | G1/2 |
Outlet Port | G3/8 |
Max Working Pressure | 1.6 MPa |
Max Working Temperature | 100°C |
Drain Capacity | 680 kg/h |
Installation Orientation | Horizontal / Vertical |
Filter Screen | Integrated stainless steel filter screen |
Applications
Air Compressor Systems
Remove accumulated condensate from air storage tanks and prevent internal corrosion.
Compressed Air Filters
Maintain filtration efficiency by preventing excessive water accumulation.
Air Dryers
Provide additional condensate management after cooling and drying processes.
Industrial Pneumatic Equipment
Help protect valves, cylinders, and other pneumatic components from moisture-related failures.
Flexible Drain Solutions for Different Applications
1. Single Drain Valve
Simple condensate removal solution
Suitable for:
- Air compressors
- Air tanks
- Small air treatment systems
2. Drain Valve + Pre-Filter
Enhanced protection against contaminants
Benefits:
- Improved protection against blockage
- Suitable for systems with more contaminants
- Extended drain valve service life
3. Extended Combination Assembly
Customized configuration for special applications
Benefits:
- Flexible system integration
- Multiple connection options
- Suitable for complex compressed air applications
