Vp37 problem with injectors pipes

Hi i got problems with injector pipes. I use maks potential of my pump and i got crank 3rd or 4th injector pipe. I dont know where is the problem. Pipes are tithened and fuel pump is rigidly.
So where is the problem? I need better pipes? Which ones are better?

Sorry do you mean one pipe has cracked?

Yesterday 4th pipe has cracked and always cracked one.
Too much pressure? Pipe cannot be bad because it always cracked 5cm+- 4cm from injector.

More likely that the routing isn't correct and they're pre-stressed in their installed positions?

And injection pump is installed with 4 bolts? Pipes does crack if pump head side bolt is not installed.

As Yucca said, look under the pump for the 4th bolt that supports it from underneath...if missing- there’s your problem !

Yes! It was side bolts from rotorhead. Thanks everyone