Automatic Drain Valve 1621317780 for Atlas Copco Air Compressors

High-quality shut-off valve (2205261001) designed for Atlas Copco screw air compressors. Engineered for secure airflow isolation, stable pressure control, and long-term reliability. Ideal replacement for maintaining safe and efficient compressor operation.

Application

Air Compressor

Material

Plastic

,

Stainless Steel

Category: Tag:
Description

The Atlas Copco automatic drain valve is a key component designed to remove condensate generated during the compression process. Moisture accumulation is one of the leading causes of rust, oil contamination, filter blockage, and pressure instability in air systems. The 1621317780 / 1621317781 drain valve is engineered to automatically detect and discharge condensed water, ensuring a dry, clean, and stable airflow.

This model features an optimized internal design that reduces clogging, handles mixed condensate (air, oil, water), and provides reliable long-term performance even in harsh operating environments such as heavy manufacturing, mining, food processing, and high-humidity locations.

Key Features

1. Intelligent Condensate Removal

The valve activates automatically based on condensate level or pressure conditions, eliminating the need for manual draining. This reduces labor time and prevents delays or mistakes that could lead to moisture accumulation inside the system.

2. Anti-Clogging Flow Path

The internal fluid channel is designed to handle condensate containing oil mist, rust particles, and fine contaminants. A wider passage minimizes blockage risk, enabling stable draining even when the compressor runs continuously or in dusty, high-load environments.

3. Corrosion-Resistant Materials

Made from high-toughness alloy and chemically resistant polymer components, the valve withstands prolonged exposure to water, compressor oil, high temperature, and acidic condensate, ensuring a long service lifespan.

4. Low-Maintenance Mechanism

The streamlined internal actuation system reduces friction between moving parts. This minimizes wear, decreases maintenance frequency, and provides dependable performance without repeated cleaning.

5. Leak-Proof Sealing Technology

A combination of reinforced diaphragm seals and precision-machined interfaces prevents unintentional air discharge, helping maintain compressor efficiency and stable system pressure.

How It Works Inside the Compressor System

During compression, warm air cools and generates moisture. Over time, water accumulates in the air receiver, filters, separators, and piping. The 1621317780 / 1621317781 automatic drain valve:

  • Detects condensate through internal level or pressure sensing
  • Opens the drainage port quickly to release the mixture of water and oil
  • Closes automatically to prevent air loss
  • Keeps internal components dry, protected, and clean

This process operates continuously without operator intervention, maintaining consistent air quality and preventing moisture-related failures.

Benefits for Industrial Users

  • Improved Air Quality
    Reduces moisture that leads to corrosion in pipelines and pneumatic tools.
  • Protects Downstream Components
    Extends the service life of air dryers, filters, and valves by minimizing water exposure.
  • Energy Efficiency
    Prevents excessive air loss that can occur with manual draining or faulty mechanical drains.
  • Reduced Maintenance & Downtime
    Automated drainage prevents water accumulation, a common cause of pressure drop and premature wear.

Manufacturing & Quality Control

Each drain valve undergoes strict testing procedures to meet industrial standards:

  • Condensate flow efficiency test
  • Pressure cycle endurance test
  • Anti-clogging performance evaluation
  • Thermal resistance and oil-compatibility inspection
  • Leak-rate and sealing integrity test

Only valves that pass all procedures are released for shipment, ensuring consistent performance.

Compatibility

This automatic drain valve is compatible with Atlas Copco air compressor systems requiring:

Part Numbers:

  • 1621317780
  • 1621317781

For model confirmation, we provide matching assistance based on compressor series, usage environment, or old part numbers.

Why Choose Our Replacement Drain Valve?

  • OEM-level precision and reliability
  • Long-life anti-corrosion design
  • Stable condensate discharge without air loss
  • Optimized for heavy-duty Atlas Copco applications
  • Ready-to-ship stock with secure packaging
Shipping and Delivery

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