raccords à griffes DIN 3489

DIN 3489 as the basis for claw couplings

Claw couplings conforming to DIN 3489 are among the most commonly used connecting elements for suitable compressed air and hose systems. The connection is made via two interlocking coupling halves. This allows lines to be connected without time-consuming screw connections and disconnected again as needed.

Use matching coupling halves

Even within standards-based systems, the specific dimensions and connection types must be verified. For a reliable connection, the coupling geometry, mating part, and seal must all be compatible. Components that do not fit should not be forced together or used as substitutes for one another.

Threaded or hose connection

Depending on the model, DIN 3489 claw couplings may have different connection ends. For threaded versions, the correct thread size must be determined. For hose connections, the hose size and mounting type must be matched. A suitable connection prevents unnecessary adapters and facilitates proper installation.

Check the seal regularly

The gasket plays a key role in the function of the connection and is a typical wear part. Before commissioning, check that it is seated correctly and undamaged. If connections come loose repeatedly, it is recommended to regularly inspect the gasket, clamps, and contact surfaces.

For a secure compressed-air connection

In compressed-air lines, mechanical forces act on the couplings and hoses. Proper installation and the use of compatible components are therefore essential. We assist in selecting suitable DIN 3489 claw couplings based on the existing connections and dimensions.