V36W plastic quick connectors NW40-ID40-0° for VDA Cooling Water VDA QC

I. Installation Precautions

1. Cleaning Work

Before installing the VDA cooling water joint, it is essential to ensure the cleanliness of the connecting parts. Any dust, oil, or impurities may affect the sealing performance of the joint, resulting in cooling water leakage.

Use a clean cloth or a special - purpose cleaner to wipe the connecting surfaces, ensuring they are clean and dry.

2. Inspection of Sealing Rings

Carefully check whether the sealing rings at the joint are intact. The sealing ring is a crucial component for ensuring the tightness of the joint. If the sealing ring is damaged, aged, or deformed, it should be replaced promptly.

During the installation process, ensure that the sealing ring is correctly placed in the sealing groove, avoiding being squeezed or displaced.

3. Connection Method

Make the correct connection according to the design requirements of the VDA joint. Generally, this type of joint uses quick - connect or threaded connections, etc.

If it is a quick - connect joint, ensure that the plug is fully inserted and a "click" sound is heard or a distinct locking feedback is felt, indicating that the connection is in place. If it is a threaded connection, use appropriate tools to tighten it to the specified torque, avoiding being too loose or too tight.

4. Avoiding Twisting and Bending

During the installation process, pay attention to the direction of the cooling water hose and the joint, avoiding the hose from being twisted or excessively bent. This may affect the flow of the cooling water and even lead to hose rupture.

II. Disassembly Precautions

1. Pressure Release of the Cooling System

Before disassembling the VDA cooling water joint, it is necessary to relieve the pressure of the cooling system first. If there is still pressure in the system, disassembling may cause the cooling water to splash out, resulting in personal injury or equipment damage.

The pressure can be released by opening the pressure - relief valve of the cooling system or slowly loosening other parts of the cooling water pipeline.

2. Careful Operation

Be careful during disassembly and avoid using excessive force to damage the joint or connecting components. If it is a quick - connect joint, operate according to the correct unlocking method and do not pull it out forcibly.

For a threaded - connected joint, use appropriate tools to gradually loosen it in the loosening direction to prevent damage to the threads.

3. Protection of Sealing Rings

During the disassembly process, pay attention to protecting the sealing rings. If the sealing rings can still be used, store them properly to avoid damage or contamination.

If signs of damage are found on the sealing rings, new sealing rings should be replaced in time for the next installation.

4. Preventing Contamination from Cooling Fluid Leakage

When disassembling the joint, prepare containers or absorbent materials to prevent the cooling fluid from leaking and contaminating the environment. The cooling fluid may contain chemical components harmful to the environment and needs to be properly disposed of.