KSB Pump and Valve
Spare Parts Supplier
In-line, multistage and seal-less centrifugal pumps, centred-disc butterfly valves, bellows globe valves and diaphragm valves from one German maker, read from the name plate and the serial number before any line is quoted.
KSB equipment the maker itself shows for ships
KSB was founded in Frankenthal, Germany, in 1871 by Johannes Klein together with Friedrich Schanzlin and Jakob Becker, and the name is still the initials of Klein, Schanzlin & Becker. Its marine programme puts pumps and valves side by side: its own type series, pumps and pump accessories from the group company KSB ITUR, and valves and actuators under the AMRI and SISTO names. KSB lists seawater, fresh and cooling water, bilge and ballast water, fire-fighting water, oils, liquefied gases, chemicals and sludge among the media it serves on board. The families below are the ones KSB presents for marine service; a KSB unit outside this list is read the same way, from its plate.
ILN
A vertical in-line centrifugal pump with a closed impeller and a mechanical seal. KSB names marine applications and cooling circuits among its uses. The back pull-out design lets the impeller come out without the piping or the motor being removed, so wear can be measured on site before a request is written.
ILNS · ILNE
Two variants KSB names itself: the ILNS carries an auxiliary vacuum pump and the ILNE an ejector. The letter after ILN tells the buyer whether priming equipment belongs on the parts list. A pump that will not take suction may have a sound hydraulic end and a tired priming unit.
Movitec
A multistage vertical high-pressure centrifugal pump in ring-section design, close-coupled, with suction and discharge nozzles in line. KSB includes marine applications and fire-fighting systems in its list of uses. Because the stages are stacked on one shaft, the complete designation, not the family name, decides which stage parts fit.
Magnochem · Magnochem-Bloc
Single-stage seal-less volute casing pumps with a magnetic drive. Magnochem is horizontal and back pull-out; Magnochem-Bloc is close-coupled and built horizontal or vertical. There is no shaft seal to renew: torque crosses a containment shroud, and that shroud becomes the item a request has to identify.
ISORIA 10/16
A centred-disc butterfly valve sealed by an elastomer liner, with a square shaft end to ISO 5211 for a lever, a manual gearbox or a pneumatic, electric or hydraulic actuator. KSB builds it with wafer (T1), semi-lug (T2), full-lug (T4) and flat-faced flanged (T5) bodies, and notes that T2 and T4 suit downstream dismantling and dead-end service with a counterflange.
KE
The same centred-disc principle with a PFA liner, in wafer (T1), full-lug (T4) or raised-face U-section (T6) bodies. Two valves that look alike from the walkway can carry different liners, and the liner decides the replacement.
BOA-H
A bellows-type globe valve with flanged ends and either an on/off disc or a throttling plug. KSB colour-codes the position indicator by valve design, makes the disc replaceable, protects the bellows when the valve is fully open, and uses wear- and corrosion-resistant chrome or chrome nickel steel at the seat and disc interface.
SISTO
One of the two valve names KSB gives for its marine programme. In a SISTO diaphragm valve every moving part is kept away from the fluid by the diaphragm, so the diaphragm and its material are what the request has to state.
Where a KSB pump or valve gives up first
Most KSB lines that reach an enquiry come from three places: the running clearance inside a centrifugal pump, the shaft seal, and the sealing element of a valve. On the seal-less Magnochem the seal is replaced by a containment shroud, which changes what the ship has to report.
Clearance opening at the impeller
As the impeller and the casing, or the wear ring where one is fitted, lose their fit, more liquid slips back to suction. The pump keeps running and sounds normal while it falls short of its duty. Measure the impeller neck and the bore it runs in before the request goes out.
An impeller turned to its duty
Centrifugal impellers are often machined down to suit the duty a pump was ordered for. A replacement has to repeat that trim, so send the impeller diameter if the plate gives one, or measure the removed impeller across the vane tips.
Seal faces and what sits under them
The ILN is built with a mechanical seal. A seal that weeps usually brings its faces, its elastomers and the shaft or sleeve surface under them onto the same request, and the seal type is read from its own marking or the data sheet rather than assumed.
Priming that fails before the pump
On ILNS and ILNE builds a pump that will not draw may have a priming fault, not a hydraulic one. The vacuum pump or the ejector is identified from its own marking and quoted as its own line, so the pump end is not opened for a fault it does not have.
Shroud and bearings instead of a seal
With a magnetic drive there is no mechanical seal to wear. The containment shroud between the pumped liquid and the drive is the pressure boundary, and the bearings on the wetted side of the drive take the place of the seal on the parts list. KSB's design is modular: metallic and ceramic shrouds can be exchanged, so the shroud in the pump today may not be the one it left the works with.
A shroud that reports which shell is failing
KSB's MagnoProtect shroud has a channel structure that forms a second static barrier, and a pressure transmitter watches the vacuum in those channels. KSB reads it this way: pressure rising to atmospheric means the outer shell leaks, pressure above ambient means the inner shell is damaged. Send that reading with the request.
On a centred-disc valve the liner is the seal
The disc closes into the liner around its whole edge. A valve that no longer holds usually points to the liner first, worn, swollen or hardened by the medium, so the liner material is part of the identity rather than a detail.
Bellows, seat and diaphragm
A BOA-H can leak two ways: a weep to atmosphere points at the bellows, passing when closed points at the disc and seat. A SISTO diaphragm flexes on every stroke and is chosen against the medium, so its marking, or the medium in the line, travels with the request.
KSB pump and valve components, grouped the way they come apart
Pump lines follow the order of a sectional drawing: rotating parts, casing, shaft seal, bearings and joints, so each line can carry the item number from the pump's own documentation. Valve lines follow the valve: sealing element, disc and shaft, then whatever operates it.
- Closed impellers for ILN, Movitec and Magnochem pumps, matched to the trim of the pump in question
- Casing wear rings where fitted, quoted together with the impeller they run against
- Shafts, shaft sleeves and keys
- Mechanical seals and their elastomer sets, stated by seal type
- Rolling bearings, bearing covers and retaining rings
- Casing gaskets and O-rings for back pull-out reassembly
- Movitec stage parts and shaft seal, read from the complete designation
- Auxiliary vacuum pumps and ejectors on ILNS and ILNE builds
- Magnochem containment shrouds, wetted-side bearings and magnetic drive parts
- Pressure transmitters on MagnoProtect shrouds
- Elastomer liners for ISORIA 10/16 and PFA liners for KE
- Butterfly valve discs, shafts and shaft seals
- Levers, manual gearboxes and actuators on the ISO 5211 mounting
- BOA-H bellows assemblies, discs and throttling plugs
- SISTO diaphragms in the material of the original
Reading a KSB plate before the request leaves the ship
KSB puts a serial number on the name plate of its pumps and valves and states that this number uniquely identifies the product. Its own online parts search starts from that serial number and otherwise works from the material number of a part or, for standard pumps, from the type series. A request to Vessel Core works best when it starts from the same place, with the rest of the plate copied around it.
- The complete type designation exactly as stamped, every code group included, not shortened to ILN or Movitec
- The serial number from the name plate of the pump or valve
- The material number of the part, where the ship's parts list or an earlier delivery note gives one
- Every other line of the plate copied as written, including the duty data and the year
- Shaft seal type, from the seal's own marking, the data sheet or a photograph
- On ILNS and ILNE builds, the priming equipment and the motor photographed on their own plates
- On a Magnochem, the shroud fitted (metallic, ceramic or MagnoProtect) and the transmitter reading where there is one
- On valves: the series (ISORIA, KE, BOA-H or SISTO), the body type code, the liner or diaphragm material and the size and pressure marking on the body
- The lever, gearbox or actuator fitted, with its own plate
- Square-on photographs of every plate and of the removed part next to a rule
Tools for this equipment: the end-suction pump size reader for a size such as Etanorm 040-025-160, the mechanical seal material code for the seal faces, the flange identifier for the suction and discharge flanges, and the affinity laws calculator when a centrifugal pump runs on another supply frequency. Where the seal follows EN 12756 dimensions, the mechanical seal size finder gives its installation length from the shaft diameter. Where an ISORIA valve is worked by a pneumatic actuator, the pneumatic cylinder air calculator gives the air the actuator takes per cycle and its theoretical force.
How a KSB line is routed
KSB works its own spares from the serial number, and Vessel Core reads every KSB enquiry the same way before a route is chosen. What decides between the OEM route and a verified alternative is the part itself, not the name cast on the casing.
Serial number before description
A KSB request is opened from the plate, not from a family name. The serial number ties the unit to the build it left the works with, which a type series alone cannot do.
Maker-specific parts on the OEM route
Trimmed impellers, casing parts, containment shrouds and valve liners are tied to the KSB build. They are reviewed on an OEM-route basis and sourced through market channels; Vessel Core has no agreement with KSB, and none is implied.
Standard parts read from their own markings
Rolling bearings carry their bearing maker's marking, mechanical seals their seal maker's designation, and O-rings a size and a compound. Where the drawing and the duty allow, such lines can be offered as a verified alternative, stated as such on the quotation.
Pump lines and valve lines kept apart
One maker name covers two kinds of identity: a pump plate with a serial number, and a valve marked with its series, body type and liner. Each line is checked against its own kind before anything is called a match.
Magnochem lines only against the identity
On a seal-less pump the containment shroud is the pressure boundary. Shroud and bearing lines are quoted against the serial number and the shroud actually fitted, never on a near-enough basis.
Older units and missing plates
Where the plate is gone, the type series, the ship's spare parts list, the sectional drawing from the pump manual and measured parts stand in for it, and the request says plainly that the plate is missing.
KSB pump and valve parts — questions buyers ask
What plate data does a KSB pump request need?
The complete type designation as stamped and the serial number first, because KSB states that the serial number uniquely identifies the product. Then every other line of the plate as written, the shaft seal type, and a photograph of the plate taken square-on.
Can a KSB part be identified without a part number?
Often, yes. KSB's own parts search accepts a serial number, the material number of a part or, for standard pumps, the type series, and Vessel Core works from the same keys. A plate photograph, the item from the sectional drawing in the pump manual and measurements of the worn part are usually enough to begin.
Are KSB butterfly valve parts requested the same way as pump parts?
No. A valve is read from the valve: the series (ISORIA or KE), the body type code (T1, T2, T4, T5 or T6), the liner material, the size and pressure marking on the body, and the lever, gearbox or actuator fitted. On these centred-disc valves the liner is the seal, so its material decides the replacement.
What wears on a Magnochem pump if it has no mechanical seal?
The parts that take over the seal's job: the containment shroud between the pumped liquid and the magnetic drive, and the bearings on the wetted side. Where KSB's MagnoProtect shroud is fitted, its pressure transmitter shows whether the inner or the outer shell is in question, and shroud and transmitter go on the same request.
What do ILNS and ILNE mean on an ILN pump?
They are the priming variants KSB names for the ILN: the ILNS has an auxiliary vacuum pump and the ILNE an ejector. If the plate shows either, the priming equipment is identified from its own marking and quoted as a separate line from the pump.
Is Vessel Core connected to KSB?
No, and there is no agreement of any kind. Vessel Core holds no distribution, representation or partnership agreement with KSB, and quoting a component against one of its designations implies no approval by the maker and no claim of interchangeability.
Send the plate with the serial number.
List the type designation, the serial number, the medium and the parts needed, with the port. For valves, send the series, body type and liner material. Pump lines and valve lines are quoted separately, so the ship can decide what to open now and what to carry as spares.
