AL2xxx

Make sure that the minimum diameter for water flow is at least 2.5 mm, and that the internal diameter of the hose is at least 4 mm.

1. Degrease the connector and the threaded holes. Allow the degreasing agent to evaporate completely before continuing.
2. Place the plastic sealing ring on the connector.
3. Apply a drop of Loctite 638/648 adhesive to the thread, and spread it all the way round.
4. Attach the connector, and turn it until the sealing ring is visibly deformed. (This only requires a torque of 0.2 to 0.3 Nm!)
5. Remove the excess adhesive.
6. Let the adhesive harden for 4 hours before stressing it.
7. Let the adhesive harden for about 12 hours before exposing it to pressure.
8. The hoses must match the chosen connectors.

Water cooling connections that can be used for hoses with an inside diameter of 4 mm are, for example, the Festo PU-4 pneumatic or the very flexible PVC hose Rauclair E 4x1. Both hoses and connections can withstand a pressure of 2 bar.