Leak before press - Henco pressfittings PVDF - 28/04/2016
HENCO synthetic press fittings are designed in such a way that they leak immediately if you forget to press the fitting during assembly.
Pressing the fitting has a two functions:
- It seals the O-ring
- It fastensthe fitting to the pipe
If the fitting is not pressed it will leak when the system pressure is 0.5 Bar. This allows early detection of errors (during the required pressing of the piping system) and avoids damage caused by leaks.
Not pressed in the correct position.
If the jaws of the pressing tool are incorrectly positioned on the fitting, the sleeve will not press sufficiently against the O-ring. In that case too, the fitting will leak when it is pressurised.
Poor functioning of pressing tool
If the pressingtool does not function well (insufficiently pressed), the fitting will also leak when pressed. So in addition to leak detection there is also press detection!
All fittings of the Henco PVDF press range are LPB proved. Download here the test report.