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DESMI ROTAN

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Internal gear pumps

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Explore ROTAN internal gear pump families for general, heavy-duty and chemical-service requirements. Use the family as a starting point, then review the complete model, liquid and duty with DFIN.

Product families & enquiries

ROTAN CD

Stainless-steel internal gear pumps intended for chemical-duty and corrosive-liquid applications.

Identify the complete fluid composition and all required wetted materials.

Discuss this family →DFIN technical note

Selection checklist

  • Full ROTAN model and existing nameplate, if available
  • Fluid, concentration, temperature and viscosity range
  • Required flow, differential pressure and suction conditions
  • Seal, drive, connection and installation requirements

DFIN reviews the proposed configuration, availability and supply scope for each enquiry.

Product families & model references

417 family and model references (not stock quantities)

DESMI ROTAN CD26 90° Angular Packing model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD26 90° Angular Packing

Chemical-duty internal gear pump — configuration reference

CD26 90° Angular Packing is organised by DFIN as a CD Series selection reference for DN25 / 1". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
26 / DN25 / 1"
View models & technical details →
DESMI ROTAN CD26 Corrosive-Service Material Configuration model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD26 Corrosive-Service Material Configuration

Chemical-duty internal gear pump — configuration reference

CD26 Corrosive-Service Material Configuration is organised by DFIN as a CD Series selection reference for DN25 / 1". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
26 / DN25 / 1"
View models & technical details →
DESMI ROTAN CD26 Double Mechanical Seal Tandem model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD26 Double Mechanical Seal Tandem

Chemical-duty internal gear pump — configuration reference

CD26 Double Mechanical Seal Tandem is organised by DFIN as a CD Series selection reference for DN25 / 1". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
26 / DN25 / 1"
View models & technical details →
DESMI ROTAN CD26 Heated High-Viscosity Configuration model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD26 Heated High-Viscosity Configuration

Chemical-duty internal gear pump — configuration reference

CD26 Heated High-Viscosity Configuration is organised by DFIN as a CD Series selection reference for DN25 / 1". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
26 / DN25 / 1"
View models & technical details →
DESMI ROTAN CD26 High-Pressure Back-to-Back Double Mechanical Seal model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD26 High-Pressure Back-to-Back Double Mechanical Seal

Chemical-duty internal gear pump — configuration reference

CD26 High-Pressure Back-to-Back Double Mechanical Seal is organised by DFIN as a CD Series selection reference for DN25 / 1". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
26 / DN25 / 1"
View models & technical details →
DESMI ROTAN CD26 Inline Flanged Packing model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD26 Inline Flanged Packing

Chemical-duty internal gear pump — configuration reference

CD26 Inline Flanged Packing is organised by DFIN as a CD Series selection reference for DN25 / 1". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
26 / DN25 / 1"
View models & technical details →
DESMI ROTAN CD26 Single Mechanical Seal model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD26 Single Mechanical Seal

Chemical-duty internal gear pump — configuration reference

CD26 Single Mechanical Seal is organised by DFIN as a CD Series selection reference for DN25 / 1". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
26 / DN25 / 1"
View models & technical details →
DESMI ROTAN CD26EM-3U332 model reference image
DESMI ROTAN · Verified full model

DESMI ROTAN CD26EM-3U332

Chemical-duty internal gear pump

CD26EM-3U332 is documented in DESMI official selection/stock material. DESMI item number: 6147-KC-R. Published attached option / drive reference: 3314-020HA2MD. DFIN keeps the original model string for identification and quotation matching.

Family
ROTAN CD
Nominal size reference
26 / DN 25 / 1 in
View models & technical details →
DESMI ROTAN CD33 90° Angular Packing model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD33 90° Angular Packing

Chemical-duty internal gear pump — configuration reference

CD33 90° Angular Packing is organised by DFIN as a CD Series selection reference for DN32 / 1¼". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
33 / DN32 / 1¼"
View models & technical details →
DESMI ROTAN CD33 Corrosive-Service Material Configuration model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD33 Corrosive-Service Material Configuration

Chemical-duty internal gear pump — configuration reference

CD33 Corrosive-Service Material Configuration is organised by DFIN as a CD Series selection reference for DN32 / 1¼". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
33 / DN32 / 1¼"
View models & technical details →
DESMI ROTAN CD33 Double Mechanical Seal Tandem model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD33 Double Mechanical Seal Tandem

Chemical-duty internal gear pump — configuration reference

CD33 Double Mechanical Seal Tandem is organised by DFIN as a CD Series selection reference for DN32 / 1¼". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
33 / DN32 / 1¼"
View models & technical details →
DESMI ROTAN CD33 Heated High-Viscosity Configuration model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD33 Heated High-Viscosity Configuration

Chemical-duty internal gear pump — configuration reference

CD33 Heated High-Viscosity Configuration is organised by DFIN as a CD Series selection reference for DN32 / 1¼". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
33 / DN32 / 1¼"
View models & technical details →
DESMI ROTAN CD33 High-Pressure Back-to-Back Double Mechanical Seal model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD33 High-Pressure Back-to-Back Double Mechanical Seal

Chemical-duty internal gear pump — configuration reference

CD33 High-Pressure Back-to-Back Double Mechanical Seal is organised by DFIN as a CD Series selection reference for DN32 / 1¼". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
33 / DN32 / 1¼"
View models & technical details →
DESMI ROTAN CD33 Inline Flanged Packing model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD33 Inline Flanged Packing

Chemical-duty internal gear pump — configuration reference

CD33 Inline Flanged Packing is organised by DFIN as a CD Series selection reference for DN32 / 1¼". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
33 / DN32 / 1¼"
View models & technical details →
DESMI ROTAN CD33 Single Mechanical Seal model reference image
DESMI ROTAN · Configuration reference

DESMI ROTAN CD33 Single Mechanical Seal

Chemical-duty internal gear pump — configuration reference

CD33 Single Mechanical Seal is organised by DFIN as a CD Series selection reference for DN32 / 1¼". DFIN configuration/reference page based on DESMI's published designation system. It is not presented as a manufacturer-confirmed stocked SKU; the complete order code requires DESMI verification.

Family
ROTAN CD
Nominal size reference
33 / DN32 / 1¼"
View models & technical details →
DESMI ROTAN CD33E-3U84B model reference image
DESMI ROTAN · Verified full model

DESMI ROTAN CD33E-3U84B

Chemical-duty internal gear pump

CD33E-3U84B is documented in an official DESMI stock/item list (Week 11, 2026). DESMI item number: 6886U. Published attached option / drive reference: PL21 USA NPT. DFIN preserves the original full model string for identification and quotation matching.

Family
ROTAN CD
Nominal size reference
33 / DN 32 / 1¼ in
View models & technical details →
DESMI ROTAN CD33EM-3U332 model reference image
DESMI ROTAN · Verified full model

DESMI ROTAN CD33EM-3U332

Chemical-duty internal gear pump

CD33EM-3U332 is documented in DESMI official selection/stock material. DESMI item number: 6148-KC-R. Published attached option / drive reference: 3314-020HA2MD. DFIN keeps the original model string for identification and quotation matching.

Family
ROTAN CD
Nominal size reference
33 / DN 32 / 1¼ in
View models & technical details →
DESMI ROTAN CD33EM-3U842 model reference image
DESMI ROTAN · Verified full model

DESMI ROTAN CD33EM-3U842

Chemical-duty internal gear pump

CD33EM-3U842 is documented in DESMI official selection/stock material. DESMI item number: 5966. Published attached option / drive reference: PL/21 DIN. DFIN keeps the original model string for identification and quotation matching.

Family
ROTAN CD
Nominal size reference
33 / DN 32 / 1¼ in
View models & technical details →

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