Do you need more information on how to use our wedge couplers? Do you want to know if they require any maintenance? Or are you interested to know more about the EN74 norm and what it means for THIEL and for you?
The answers to these questions, and more, can be found below!
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Yes, they may be submitted to pull force. You can use Tube-Lock® to design a suspended scaffold.
The wedge is sufficiently tightened when it has hit the jarring blow.
The wedge should always be installed pointing down.
There is no technical difference between positioning the wedge on top or underneath the ledger. The advantage of installing the wedge on top is, that it's easy to install as the coupler remains open by gravity. The advantage of placing the wedge underneath the ledger is that usually there is more space because there are no other ledgers or braces.
The technical values for the coupler don't differ when using the wedge upside down. However, it is good practice to use the way the wedge is intended. The reason for this is that any issue might occur when an object falls on the wedge and loosens it.
No, Thiel couplers require no maintenance. A simple visual inspection before use will suffice.
No. We have been executing a test exposing wedge couplers to vibrations for over a year. No single wedge has loosened.