Identification
Horizontal single-stage standardized centrifugal pump — dimensions per ISO 2858 and technical requirements per ISO 5199 — manufactured by KSB in Brazil (Várzea Paulista/SP). "Standardized" is the keyword: any ISO 2858 pump of the same size is dimensionally interchangeable, the international equivalent of the ANSI argument. The Megabloc variant is the close-coupled version (impeller mounted on the motor shaft end — no coupling, no alignment, minimal baseplate).
Position on the six axes
| Axis | Position |
|---|---|
| Hydraulics | Radial (single-stage) |
| Stages | 1 |
| Configuration | OH1 (Meganorm) / close-coupled (Megabloc) |
| Sealing | Sealed (mechanical seal or packing) |
| Standard | ISO 2858 / ISO 5199 |
| Service | Water, sanitation, general industry |
Ranges and construction
| Parameter | Catalog value |
|---|---|
| Flow | up to ~700 m³/h |
| Head | up to ~140 m |
| Temperature | up to 105 °C (standard execution) |
| Sizes | DN 25 to 200+ |
Radially split spiral casing, back pull-out, closed impeller; materials from cast iron to stainless per service. Manufacturer-declared applications: water supply, drainage, irrigation, sugar and ethanol, HVAC, fire-fighting.
Line variants
| Variant | What it solves |
|---|---|
| Meganorm | Classic execution with coupling and baseplate — back pull-out maintenance without touching piping or motor |
| Megabloc | Close-coupled (impeller on the motor shaft end) — no alignment, minimal baseplate, lower installed cost |
Materials per the official catalog by service (cast iron in the standard execution; bronze/stainless internals on specification); sealing by mechanical seal or packing.
Differentials and points of attention
- ISO 2858 interchangeability: standardized nozzle, baseplate and shaft-end dimensions — any standardized pump of the same size drops in; the spare-parts pool belongs to the GRID, not the manufacturer.
- KSB EasySelect: online selection and curves per duty point — sizing verifiable at the official source.
- Brazilian manufacturing (Várzea Paulista/SP): lead time, parts and support in local currency — the MTTR factor imports do not match in Brazil.
- Point of attention: standard execution limited to ~105–140 °C depending on variant and sealing — beyond that (or hydrocarbons), the conversation changes class (alloyed ISO 5199 / API 610).
Where it stands out / limitations
Stands out where the service is water/clean fluids and the criterion is total cost + local support: national manufacturing, parts and workshop network across Brazil, short lead times — the de facto standard of Brazilian sanitation and general industry. Limitations: standard execution up to ~105 °C and moderate pressures — not a platform for severe hydrocarbons (API 610) nor for high-demand aggressive chemicals (where the B73.1/ISO 5199 alloy charts come in).
Official documentation
- Meganorm product page — KSB — data, curves and selection (KSB EasySelect).
- Technical and service manuals in KSB's official download center (D05 — always the official source).
Reliability
No published catalog MTBF (the industry rule). In clean-water service inside the BEP, standardized pumps of this class tend toward the top of the general category's MTBF statistics — benchmarks and the failure hierarchy (seal no. 1, bearings no. 2) are in "Reliability in numbers" in the Centrifugal Pump handbook.