Map every fill and discharge path
A tank’s structure and water system interact. Baffles, manways and penetrations affect cleaning, inspection, flow and structural design at the same time. Have the tank designer specify the arrangement for the intended fill conditions.
Separately identify each source and receiver, hose path and elevation. The pump must meet the installed duty through those paths. Maximum flow and maximum pressure are not automatically available together, and neither figure alone establishes transfer time.
Include breathing and service access in the drawing
Vents, overflows and drains must support the intended operation. A blocked or inadequate vent can interrupt transfer or damage the tank. If the vehicle also performs road spraying, specify that duty and its controls separately from bulk delivery.
Scroll horizontally to view all columns.
| Decision | What to establish | Condition or limit |
|---|---|---|
| Surge control | Use the approved tank design for baffle geometry and fill conditions. | Baffle count alone does not describe liquid movement or structural adequacy. |
| Pump duty | Select the installed operating point for each defined flow path. | Maximum flow and maximum pressure do not occur together automatically. |
| Tank breathing | Size and protect vent, overflow and drain paths for the intended duty. | A blocked or undersized vent can damage the tank or stop transfer. |
| Service access | Provide safe access to filters, valves, drains and inspection points. | Tank entry can be a confined-space task and requires separate controls. |
Request one coordinated tank and transfer-system proposal
Ask for the approved baffle and fill basis, each pump duty, vent protection and access to filters, valves and drains. Tank entry may be confined-space work and needs its own controls. Baffle count and a pump model number are not enough to approve the system.
Information to prepare for this review
- Tank geometry, fill range and design basis
- Required fill, transfer, gravity and spray modes
- Source and receiver elevation and pressure
- Pump curve, drive and priming method
- Pipe, valve, vent, drain, hose and coupling schedule
- Cleaning, inspection and service-access plan
Records to request and keep
- Approved tank and baffle design record
- Piping and valve schematic with flow directions
- Pump curve and installed-duty calculation
- Functional, leak, vent and drain test record
Common mistakes and what to check instead
- Counting baffles without a design basis: Review the qualified tank structure and operating fill cases.
- Selecting a pump from one headline figure: Use the system curve, elevation, hose and receiver condition.
- Leaving venting and drains as fabrication details: Specify capacity, protection, location and test method.
Scope of this guide
This page does not design a tank, baffle or pump system.
Qualified engineering and the selected component instructions control the result.
Do not operate with blocked venting, dry-pump risk, uncontrolled pressure, leakage, damaged hoses or unsafe tank access.
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.
Primary public guidance for tanker suitability, cleaning, hoses, delivery planning and potable-water controls. It does not approve a vehicle or replace local water rules.
Manufacturer example supporting tank, pump, PTO, valve and leak checks. Its component limits are model specific and not KEEYAK ratings.