The ZDFS Auto Drain Valve is an electronically timed solenoid valve designed to automatically discharge condensate—including moisture, oil, and dirt—from compressed air systems without requiring manual drainage. Essential for maintaining air quality and protecting pneumatic equipment, the ZDFS valve ensures that condensate does not accumulate in filters, air receivers, dryers, or pipelines.

Equipped with an adjustable electronic timer, the ZDFS allows users to set precise ON (drain duration) and OFF (drain interval) times, offering full control over discharge frequency and volume. Its rugged brass or composite body, high-pressure tolerance, and reliable sealing elements (NBR or Viton) make it ideal for harsh industrial conditions.

Designed for easy installation and maintenance, the valve includes a manual test button, allowing quick functional checks without dismantling. Available in 1/4", 3/8", and 1/2" BSP/NPT port sizes, and operating on 220V AC / 110V AC / 24V DC, it fits a variety of applications and system setups.

Key Features of ZDFS Auto Drain Valve:

Automatic Condensate Discharge

• ✅ Electronically controlled solenoid valve for unattended condensate removal

• ✅ Prevents moisture buildup, reducing corrosion, blockage, and downtime

⏱️ Adjustable Timer Control

• ✅ Independent ON time (0.5–10 seconds) and OFF time (0.5–45 minutes)

• ✅ Enables tailored drainage intervals for different air systems

• ✅ Ideal for high-load or moisture-prone environments

⚙️ Rugged & Industrial-Grade Design

• ✅ Forged brass or composite body for high durability

• ✅ Withstands up to 16 bar operating pressure

• ✅ Seals made from NBR or Viton for chemical and temperature resistance

Flexible Power Options

• ✅ Available in 220V AC, 110V AC, or 24V DC configurations

• ✅ Compatible with global industrial power standards

• ✅ Low power consumption for energy-efficient operation

Easy to Install & Maintain

• ✅ Simple inline installation on filters, tanks, dryers, and drip legs

• ✅ Manual test button for functionality checks

• ✅ Compact design fits into tight pneumatic systems

Technical Specifications

• ✅ Port Sizes: 1/4", 3/8", 1/2" BSP/NPT

• ✅ Max Operating Pressure: 16 bar (232 psi)

• ✅ Proof Pressure: 21 bar (305 psi)

• ✅ Temperature Range: 1°C to 55°C

• ✅ Orifice Sizes: 2 mm – 4 mm (based on model)

• ✅ Protection Rating: IP65 (with sealed connector)

Applications

• ✅ Air compressors and receivers

• ✅ Filters, dryers, and aftercoolers

• ✅ Industrial pneumatic lines and drip legs

• ✅ CNC machines and automated factories

Why Choose ZDFS Auto Drain Valve?

• ✔️ Eliminates manual drainage effort and reduces maintenance needs

• ✔️ Customizable timing for precision control over condensate removal

• ✔️ Long-lasting materials suited for demanding industrial environments

• ✔️ Helps prevent water hammer, corrosion, and tool failure