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Brand: KSB
KSB KRT Submersible Motor Pump for Wastewater
Description
Non-clogging submersible pump for drainage and wastewater
The KSB KRT is a submersible motor pump for drainage, industrial wastewater, service water supply, sludge disposal and stormwater transport. Non-clogging impellers with large free passages are optimised for every type of wastewater, and five impeller types are shown in the leaflet: F-max, E-max, D, D-max and K-max.
Components are interchangeable within this type series and with the wastewater pumps of the Sewatec type series, which reduces spare parts stock.
Technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer | KSB SE and Co. KGaA, Frankenthal, Germany |
| Type | KRT, submersible motor pump |
| Sizes | DN 40 to 700 (1.5 to 28 in) |
| Capacity | Up to 45000 gpm |
| Head | Up to 330 ft |
| Fluid temperature | Up to 140 F |
| Installation types | Wet installation with guide rail or guide wire; horizontal dry installation; vertical dry installation |
| Motor efficiency | Energy-saving motors meeting IE3-equivalent levels (IEC 60034-30 marking, see leaflet note) |
| Shaft seals | Two bi-directional mechanical seals |
| Bearings | Rolling element, lubricated for life |
| Monitoring | Sensors for overheating and moisture ingress; specially protected cable entry |
| Materials | Grey cast iron; optional duplex stainless steel or wear-resistant white cast iron |
| Automation | Possible |
Reliability features
Two bi-directional mechanical seals protect the motor, rolling element bearings are lubricated for life to reduce maintenance, and sensors trigger a warning in the event of overheating or moisture ingress. The cable entry is specially protected. KSB notes that IEC 60034-30 is not binding for submersible motors; the efficiency marking is used for motors that reach levels similar to standardised motors, calculated according to IEC 60034-2.
Selecting a KRT pump
Choose the installation type first, because it determines the pump stand, guide rail and discharge connection. Then provide the wastewater type and solids content, flow and head, fluid temperature and, if the water is abrasive or corrosive, the material option. The impeller type follows from the medium: the leaflet shows five types so ask for the one that suits sludge, raw sewage or stormwater.
Documents and quotation
Confirm sizes, cable length, motor rating and explosion protection if the pit is classified. The leaflet data (09.24) are US units; check them against current documentation.
The attached KSB leaflet is the manufacturer document for the KRT and lists the technical data used above. Seven Star LLC, an independent supplier in Muscat, quotes KSB pumps against your duty data. Browse Pumps for related equipment, or compare with the KSB Omega axially split volute casing pump.
Datasheets & Documents
- Brochure KSB KRT submersible motor pump leaflet (EN, KSB, 09.24) Download
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About brand
KSB is a German manufacturer of pumps and valves, founded in 1871 in Frankenthal by the engineer Johannes Klein together with Friedrich Schanzlin and Jakob Becker, whose initials form the company name. The group is still headquartered in Frankenthal, Rhineland-Palatinate, and is listed as KSB SE & Co. KGaA.
Seven Star LLC lists KSB pump families including Etanorm, Movitec, Multitec and Omega, and supplies KSB pumps and spare parts to operators and contractors in Oman and the GCC, matching each request to the manufacturer's documentation.
KSB company profile
| Founded | 1871, Frankenthal, Germany, by Johannes Klein, Friedrich Schanzlin and Jakob Becker |
|---|---|
| First product | Klein's boiler feed apparatus, installed at a Frankenthal brewery |
| Headquarters | Frankenthal, Rhineland-Palatinate, Germany |
| Legal form | KSB SE & Co. KGaA, listed on the Frankfurt stock exchange |
| Product families | Etanorm, Etabloc and Etaline standardised pumps, Movitec and Multitec multistage pumps, Omega split-case pumps, Amarex submersible pumps, BOA, ISORIA and AMRI valves, spare parts and service |
Milestones
- 1871: Klein, Schanzlin and Becker found the company in Frankenthal.
- 1887: The company becomes a public limited company; Johannes Klein chairs the board until 1905.
- 1930: KSB takes over its competitor AMAG.
- 1935: The Eta standardised pump series is launched.
KSB pump series we list
- Etanorm: horizontal single-stage volute casing pump with ratings and main dimensions to EN 733, back pull-out design, replaceable casing wear rings.
- Movitec: vertical multistage high-pressure pump in ring-section design, with suction and discharge nozzles of the same diameter in line.
- Multitec: multistage ring-section pump for horizontal or vertical mounting, built in materials from cast iron to duplex stainless steel.
KSB products we list
Ordering KSB pumps and parts: what we need
For a spare part, send the type series and size, the KSB order number and serial number from the nameplate, and the part number from the sectional drawing. For a new pump, give flow, head, liquid, temperature, suction conditions, material preference, and motor voltage and frequency. Mechanical seal code and impeller diameter matter on replacements, because one pump size is built in many variants.
Facts checked against KSB's own company history (ksb.com) and its 150-year press material, October 2026.
Browse KSB products by category: Pumps.
Related products
Frequently Asked Questions
What is the KRT used for?
Drainage, industrial wastewater, service water supply, sludge disposal and stormwater transport.
Which installation types exist?
Wet installation with guide rail or guide wire, and horizontal or vertical dry installation.
How is the motor protected?
Two mechanical seals, a protected cable entry, and sensors for overheating and moisture.
Which materials are offered?
Grey cast iron, with duplex stainless steel or white cast iron as options.
Which impeller types does the leaflet show?
F-max, E-max, D, D-max and K-max.
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