NC Water Valve with Housing Lely

Water Valve NC with Housing for Lely Astronaut

The Water Valve NC (Normally Closed) is a complete solenoid valve assembly including the protective housing, specifically designed for the water distribution manifolds of Lely milking robots. This valve controls critical water flow for functions such as teat cup rinsing, arm cleaning, and the Pura steam sterilization process.

Product Specifications

Key Features

• Complete Assembly: Unlike standalone valve bodies, this unit includes the protective housing, which shields the electrical coil and plunger from the high-humidity and high-pressure washdown environment of the robot stall.
• Normally Closed Safety: The valve remains shut by default, preventing water wastage or flooding in the event of a power loss or control system failure.
• High-Flow Design: Engineered to provide the specific flow rate required for effective cleaning cycles without causing water hammer in the robot's internal plumbing.
• Corrosion Resistant: Internal components are made from stainless steel and high-grade elastomers to resist mineral buildup from hard water and the caustic nature of dairy cleaning chemicals.

System Application

In the Lely A2 through A4 series, these valves are typically found in the water manifold block. They are responsible for:

1. Rinsing the Teat Cups: Cleaning the liners between cow visits.
2. External Arm Cleaning: Keeping the robot arm free of manure and debris.
3. Backflush Systems: Ensuring the milk lines are rinsed according to the programmed hygiene settings.

Maintenance Insight

If you notice the robot is "leaking" water from the arm during idle periods, or if the "Water Pressure Low" alarm triggers specifically during a rinse cycle, this valve is the primary suspect.