Flow needs a total-head assessment
A drainage or bypass brief needs the required flow and who determined it, together with pickup and discharge elevations. Hose length, diameter, bends and connections complete the proposed route. The responsible technical party can then assess total head and whether the receiver can accept the discharge.
Solids and other material in the water affect pump compatibility. The offer should state permitted intake conditions, solids handling and exclusions for that material. Flow capacity alone cannot answer whether the pump suits contaminated or debris-laden water.
The KEEYAK mobile drainage pump truck page lists submersible and centrifugal arrangements. A proposal needs to identify the package, deployment method and documents supporting the required duty.
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| Specification item | Information the buyer provides | Evidence needed from the supplier |
|---|---|---|
| Flow and head | Defined drainage requirement and assessed hose route | Selected pump curve and stated duty point |
| Water condition | Solids and relevant contamination or debris | Permitted intake and material-handling conditions |
| Discharge | Receiving point, capacity and connection | Compatible hose and receiving arrangement |
| Equipment placement | Access and handling constraints | Deployment and support requirements |
| Power and duration | Supply, connected loads and runtime | Selected power package and starting requirements |
Keep maximum capacity separate from the working flow
KEEYAK's configuration references include 2 to 8 pumps listed at 500 m³/h, or 1 to 2 centrifugal pumps listed at 2,000 m³/h. Ask which head and installation conditions support each number. Adding pump labels does not establish the total delivered flow through a shared discharge arrangement.
Kubota's drainage-pump vehicle specification gives a useful manufacturer example: one arrangement is listed at 60 m³/min with 10 m head in parallel operation, and 30 m³/min with 20 m head in serial operation. These are Kubota configurations, not KEEYAK performance results or instructions for connecting pumps. They demonstrate why a capacity statement needs its head and system arrangement attached.
The proposed duty needs to appear on the selected pump curve and be supported by the installation assessment. A change in receiving elevation or hose arrangement requires that duty to be checked again.
Assess submersible and centrifugal packages at the pickup point
Submersible equipment needs a means of reaching the water source and remaining supported there, including cables and handling arrangements. A centrifugal package needs suction, priming and installation requirements assessed for the actual source. Those site conditions provide a better selection basis than a general claim that either type is superior.
KEEYAK lists an 8 m water-hose field. Confirm the supplied hose length, diameter and connections and distinguish them from the assessed hydraulic conditions. A supplied hose length is not the same quantity as suction lift or total head, and it does not define every possible receiving arrangement.
Ask the supplier to identify the power package for the connected pumps and accessories. The catalog's 65 to 450 kW generator range spans configurations; the selected installation needs its own running and starting assessment. Include simultaneous loads and deployment duration in that discussion.
Define the inspection and handover records
The acceptance schedule should cover the supplied pumps, hoses, electrical equipment and deployment arrangement. A contracted flow demonstration also needs head, water condition, configuration, measurement and duration defined. A low-head test leaves the higher-head duty unverified.
Site and equipment specialists need assigned acceptance responsibilities, supported by manuals, equipment identities, protective-system records, maintenance access and parts information. The pre-delivery checklist and quotation guide help organize that handover.
Drainage vehicle questions
Is a drainage pump truck the same as a sewage suction truck?
The specified duty differs. A mobile pump package transfers water through a defined intake and discharge arrangement. A vacuum sewage truck collects compatible waste into a tank for transport. If both are being considered, describe the material, receiving point and need for transport before selecting equipment.
Will a 4,000 m³/h reference apply through a long hose?
Only the selected pump and complete hydraulic assessment can establish flow for that route. Provide elevations, hose dimensions, bends and receiver conditions. The headline reference should not be treated as flow available at every head.
What does the buyer need before a pumping demonstration?
Agree the duty point, water and solids, equipment arrangement, power conditions and measurement method. Identify the responsible assessment and acceptance parties. Keep the demonstration result tied to those recorded conditions.
Sources and applicability
KEEYAK catalog fields considered in this guide: duty point, total head, pump curve, submersible pump, centrifugal pump, starting load. Confirm the selected chassis, equipment and signed specification. Catalog options are not results from a vehicle test.
Sources checked:
Kubota published pump example distinguishing flow and head for specific serial and parallel arrangements; not a KEEYAK rating or a connection procedure.
Sources checked: