Technical notes
These notes answer the questions we hear most: where impact comes from, why overlap matters, and when a nozzle should be replaced. Actual values depend on your process and measurements.
How high-pressure descaling works
Thermal shock plus impact force — both must happen at once.
Read →Where impact comes from: pressure, flow, distance
Impact is about momentum, not pressure alone.
Read →Overlap: why adjacent nozzles must meet
No overlap leaves streaks; too much wastes water.
Read →Four signs of nozzle wear
Wear is gradual — by the time it is visible, it is already costing money.
Read →Why a flow stabilizer raises impact
Turning turbulence into laminar flow makes the jet denser.
Read →Where energy and water savings come from
Not less water — the right water in the right place.
Read →Glossary
- Impact force
- Force of the jet per unit area — the core descaling metric.
- Coverage width
- Effective width of the jet footprint on the strip.
- Overlap
- Share of adjacent coverage widths that overlap; sets cross-direction uniformity.
- Spray angle
- Fan angle; with installation height it sets coverage width.
- Turbulent / laminar flow
- Whether the flow is orderly; turbulence wastes energy and impact.
- Flow stabilizer
- Internal element that turns turbulence into laminar flow.
- Header
- Manifold feeding and holding a row of nozzles.
- Primary / secondary scale
- Scale formed before roughing and before finishing; differs in thickness and adhesion.
- Tungsten carbide
- Very hard wear-resistant material used for orifice inserts.
Note: general industry knowledge for understanding the process. Selection and parameters must be confirmed against your process and measurements.
Send us your process — solution first
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