Modular S / NSLH / ESL centrifugal pump parts
We review Modular S / NSLH / ESL centrifugal pump parts using the pump nameplate, model and, where relevant, the flow/head duty point.
Pump brands
Desmi pump parts sourcing for marine and industrial RFQs
Send a part number, model, serial number, drawing, photo or old reference for a Desmi part, and we'll check it before quoting.
Pump brands
What helps us check a Desmi part
Desmi's marine range spans self-priming centrifugal pumps (Modular S, NSLH, ESL/ESLH, DSL) used for cooling, bilge, ballast and fire service, and the ROTAN internal gear pump range (GP general purpose, HD heavy duty, ED environmental duty, CD chemical duty) for fuel and lube oil transfer. The pump series and impeller diameter (commonly 215mm or 265mm on the centrifugal range) determine which spare parts fit.
Customers can send part numbers, maker references, equipment model data, serial numbers, nameplates, photos, drawings, old offers or previous supply documents. We review the information before quoting so the request is handled as a technical procurement task rather than a generic product search.
Brand names on this page are used only to identify equipment, models, parts and buyer search references.
Parts and equipment we can review
Desmi RFQ scope
Use this page when your purchasing or engineering team needs review by part number, model, serial number, drawing, photo or old commercial reference.
ROTAN internal gear pump parts (GP/HD/ED/CD)
For ROTAN internal gear pump parts (GP/HD/ED/CD), the pump model and serial number narrow down casting and material variants quickly.
bilge and ballast pump service
For bilge and ballast pump service, the pump model and serial number narrow down casting and material variants quickly.
fuel and lube oil transfer pumps
Fuel and lube oil transfer pumps are checked against the pump model, shaft size and material, since impeller profiles vary by casting revision.
fire and general service pumps
Fire and general service pumps are checked against the pump model, shaft size and material, since impeller profiles vary by casting revision.
seal and gasket references
For seal and gasket references, dimensions and material (NBR, Viton, PTFE) are usually enough to identify the right item.
Common parts
Typical items buyers ask us to check
impellers
mechanical seals
wear rings
pump shafts
shaft sleeves
bearings
O-rings
gaskets
casings
couplings
seal kits
repair kits
RFQ examples
Common search and inquiry examples
| Example request | Helpful details to send |
|---|---|
| Desmi Modular S or NSLH impellers by pump model and material | Part number, maker, model, serial number, quantity, photos or drawings, delivery location and urgency. |
| ROTAN GP or HD gear pump seal kit requests | Part number, maker, model, serial number, quantity, photos or drawings, delivery location and urgency. |
| mechanical seals with shaft size and seal code | Part number, maker, model, serial number, quantity, photos or drawings, delivery location and urgency. |
| pump shaft and bearing requests with serial number | Part number, maker, model, serial number, quantity, photos or drawings, delivery location and urgency. |
How to send a useful Desmi RFQ
Attach the clearest technical information available. A single photo of a nameplate, an old offer line or a marked drawing can prevent delays when there are similar models, revisions or connection types.
If the item is obsolete or hard to identify, include dimensions, application notes and any alternative references already checked by your engineering team. We can review the request and reply by email with the next steps.
Independent sourcing note
Passat Gear Trade is an independent sourcing company. Brand names are used for identification purposes only. No formal brand relationship is claimed unless confirmed in writing for a specific supply.
Related pages
Continue by system, component or related maker
Send a spare parts RFQ for Desmi
Include part numbers, maker references, equipment model, serial number, quantity, photos or drawings, delivery location and urgency.