User Manual for PC Pneumatic Fitting Quick Connectors

Quick Guide from the Manual

PC Pneumatic Fitting Quick Connectors are designed for rapid assembly and disassembly of pneumatic pipelines. Before use, ensure the connector's interface size, compatible hose diameter, and working pressure range are consistent with your pneumatic system. Improper operation may lead to air leakage, pressure instability, or connector disengagement. Always perform a post-installation test to verify the system's integrity.

Product Overview

These connectors feature a one-click quick-connect structure, allowing for efficient connection between pneumatic hoses, pipes, and equipment such as air compressors, cylinders, and solenoid valves. They are constructed from high-quality materials including brass or stainless steel 304 bodies, nitrile or fluorine rubber seal rings, and engineering plastic locking sleeves.

Installation Preparation

• Environment: Install in a clean, dry, well-ventilated area away from open flames, high-temperature heat sources (exceeding 90°C), strong magnetic fields, and corrosive substances.
• Tools: No special tools are required. Prepare pneumatic hoses, pipe clamps, and sealants if necessary.
• Inspection: Check the hose for damage, aging, or blockage. Clean the connector, hose, and pipeline interface with a clean, dry cloth to remove dust and oil.
• Compatibility: Confirm the interface size matches the pipeline and the hose diameter matches the connector.

Installation Steps

1. System Preparation: Turn off the air compressor, close the isolation valve, and release residual air pressure. Flush the pipeline with clean air for 3-5 minutes.
2. Hose Connection: Cut the pneumatic hose vertically to ensure a flat, burr-free edge. Insert the hose into the connector until it reaches the bottom. For hoses ≥12mm, use a pipe clamp to reinforce the connection.
3. Pipeline/Equipment Connection: Align the plug with the socket and insert until a clear click is heard. Ensure there is no obvious gap.
4. Pre-installation Inspection: Gently pull the hose and connector to ensure firmness. Apply soapy water to the interface and turn on the compressor slightly (0.2-0.3MPa) to check for bubbles (leaks).
5. Post-installation Test: Run the system at rated pressure for 10-15 minutes and observe for leaks, loosening, or abnormal noise.

Operation and Maintenance

• Normal Operation: Regularly check for air leakage and ensure the locking mechanism remains flexible. Avoid pulling the hose violently.
• Routine Maintenance: Clean the connector once a week with a dry cloth. Check the sealing ring monthly; replace if aging, cracked, or deformed. If the locking mechanism jams, apply a small amount of ISO VG32 lubricating oil.
• Disassembly and Storage: Always depressurize the system before disassembly. Press the locking sleeve firmly to release the plug. For long-term storage (over 1 month), clean the connectors, apply a thin layer of anti-rust oil to metal parts, and store in a dry, clean environment.

Usage Restrictions

• Pressure: Working pressure range is 0.1-1.0MPa. Do not exceed 1.5MPa.
• Temperature: Operating range is -20°C to 80°C.
• Medium: Use only clean compressed air. Do not use water, oil, corrosive liquids, or flammable gases.
• Environment: Do not use in flammable, explosive, or highly corrosive environments without specific protective measures.
• Vibration: Avoid environments with severe vibration (amplitude >0.3mm).