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Auto Drain Valve

● Automatic System Protection: Releases accumulated water from irrigation lines when pressure drops below the preset level.

● Prevents Pipe Damage: Eliminates standing water that could cause pipe bursts or freeze damage.

● Reliable Operation: Opens at 0.2 bar and closes automatically at 0.4 bar under vertical installation.

● Maintenance-Free Design: Simple, self-cleaning structure with corrosion-resistant materials ensures long service life.

    PRODUCT DESCRIPTION

    RAIN LING Auto Drain Valve Series (VX75) is engineered to protect irrigation systems by automatically draining water from pipes when pressure falls below a safe threshold.


    Installed at the lowest points of a line or near the sprinklers, this valve helps prevent water accumulation that can lead to pipe damage or freezing issues.


    Its compact structure and durable materials make it suitable for both residential and commercial irrigation networks. The valve operates automatically — no manual intervention required — offering consistent reliability and system efficiency.

    PRODUCT SPECIFICATIONS

    Item

    Description

    Model

    VX75

    Connection Size

    1/2 in. MPT

    Maximum Pressure

    8.5 bar

    Maximum Flow

    0.23 m³/h

    Average Opening Pressure (Vertical)

    0.2 bar

    Average Closing Pressure (Vertical)

    0.4 bar

    Diameter

    3.0 cm

    Height

    2.5 cm

    Material

    Engineering Plastic

    Installation Position

    Vertical (at pipe low points)

    Detail Display

    • Drain Valve (1)
    • Drain Valve (2)