Specify the outlets that need to run together
The pump curve describes the pump; the spray pattern describes the installed system doing a job. Active outlets and piping change the operating point, while nozzle position and overlap turn the flow into useful coverage.
More pressure can increase atomization, component loading or hazards without improving the required surface application. Define the pattern, drive condition and vehicle speed before comparing maximum pump figures. Water quality and wind also belong with the test conditions.
Review pump duty, nozzle geometry and protection as one system
Identical nozzles can perform differently when mounted differently. Include PTO limits, priming, dry-run protection and shutdown, plus access to filters, drains, valves and identified replacement nozzles. Serviceability helps the installation retain its tested condition.
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| Decision | What to establish | Condition or limit |
|---|---|---|
| Pump duty | Select flow and pressure at the installed system operating point. | A maximum pump number does not describe simultaneous outlet performance. |
| Nozzle layout | Set geometry and overlap for the required pattern. | Identical nozzles can produce different coverage when mounted differently. |
| Drive protection | Define PTO speed, priming, dry-run and shutdown controls. | Operator memory is not a substitute for documented limits and protection. |
| Serviceability | Provide filter, drain, nozzle and valve access with identified parts. | A system that cannot be cleaned or drained will not keep its test condition. |
Request installed-system evidence for the offered arrangement
List individual and simultaneous outlet modes, with the required pattern and operating conditions. Ask for the selected pump duty and the corresponding test record. The manufacturer and project drawing determine component limits; this page supplies no safe pressure setting.
Information to prepare for this review
- Required pattern, width and application mode
- Operating speed and active outlets
- Pump curve and drive method
- Suction, filter, pipe and valve layout
- Nozzle type, position, angle and overlap
- Water quality, drainage and climate conditions
Records to request and keep
- Pump curve and installed-system schematic
- Nozzle schedule with position and angle
- Control, protection and operating-limit record
- Witnessed pattern test with stated setup
Common mistakes and what to check instead
- Specifying only maximum pressure: Define the required pattern and installed operating point.
- Ignoring simultaneous outlets: Test each contracted combination and record flow sharing.
- Omitting drain and filter access: Show routine cleaning, drainage and replacement access on the drawing.
Scope of this guide
This guide does not size a pump or set a safe operating pressure.
The equipment manufacturer and project drawing control component limits.
Remove the system from service for damaged hoses, blocked protection, leakage, abnormal vibration or dry-pump conditions.
Sources and applicability
Controls the project-input, quotation, approval and inspection workflow described in this guide.
Provides public checklists and worksheets; the signed project documents remain controlling.
Defines the relevant product family and published configuration boundaries. Project-specific ratings require the selected OEM documents.
Manufacturer primary source supporting pump, PTO, water-level, spray-control, hose, leak and pre-start checks. Its model settings do not rate a KEEYAK project.