///Orifices wear out or crack quickly
Cutting head & stream
Orifices wear out or crack quickly
Short orifice life is mostly water quality or installation.
Safety first: Switch off the pump, release all pressure (open the on/off valve or bleed-down valve) and lock out before you open any high-pressure part. Never put a hand or tool near a running jet.
1Check the causes, most likely first
0 of 4 checked
01Poor water quality
Most likely
Particles and silica damage the jewel.
How to check: Check filters and water tests.
| Photo | Art. no. | Description | Excl. VAT | |
|---|---|---|---|---|
| 10633 | Filter element 0,5 Micron 10"
FilterKMT, BFT, Flow |
€ 13.08 | ||
 | 10634 | Filter element 10 Micron 20", 49834716
FilterKMT, Flow |
€ 19.08 | |
 | 10635 | Filter element 10 Micron 10", 10106722
FilterKMT, Flow, CMS / Tecnocut |
€ 6.60 | |
| 10661 | Filter element 5 Micron 10"
FilterKMT, BFT, Flow, STM |
€ 10.20 | ||
 | 10714 | Water Filter Housing. SS, 250 psi, 3/4" FNPT, 72118339
FilterKMT |
€ 286.80 |
02Damaged orifice seat or mount
Possible
A poor seat stresses the jewel.
How to check: Inspect the mount and seat.
03Abrasive backflow into the orifice
Possible
Abrasive reaches the orifice at shut-off.
How to check: Check that abrasive stops before water.
04Wrong material for the job
Less likely
Ruby and sapphire wear faster than diamond.
How to check: Consider a diamond orifice for long life.
Related problems
General advice based on manufacturer manuals and service practice. Always follow the manual of your machine. Not sure? .