CD81EF-3U33BOfficial DESMI stock/item-list record. Item number 6113U.
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DESMI ROTAN · Verified full model
DESMI ROTAN CD81EF-3U33B Internal Gear Pump
CD81EF-3U33B appears in an official DESMI stock/item list. DESMI item number: 6113U. Published execution / option reference: USA execution.
FamilyROTAN CD
Nominal size reference81 / DN80 / 3 in
Full modelCD81EF-3U33B
EXPLORE THIS PRODUCT DOSSIER
Product, engineering and service information in one place
ENGINEERING DATA
Technical specifications
This page preserves a DESMI-documented model string. Current availability and a new-order configuration still require verification.
| Parameter | Published reference |
|---|---|
| Family | ROTAN CD |
| Nominal size reference | 81 / DN80 / 3 in |
| Full model | CD81EF-3U33B |
| DESMI item number | 6113U |
| Published execution / option | USA execution |
| Verification | Official DESMI source |
IDENTIFY THE RIGHT BUILD
Models & configuration
A family or hydraulic size is the starting reference. Include the complete nameplate designation, serial number, materials, seals, drive and connection details when ordering.
Materials & performance
Stainless-steel chemical-duty ROTAN construction; exact wetted materials and seal details follow the verified designation.
Use the exact model and item number for identification. For a new order or replacement, confirm the duty point, fluid, viscosity, temperature, differential pressure, connection, seal, drive and current availability in the DESMI Selection Program or from the installed pump nameplate.
DFIN reviews the operating point together with the suction condition and drive. Supply the fluid properties at both start-up and normal operation so the proposed arrangement can be checked against the appropriate curve.
Application industries
DFIN application links identify duties to discuss, subject to the specified fluid and complete pump configuration.
Typical duties to review
- Compatible corrosive chemical transfer
- Replacement and configuration identification
Compatible parts & service
Quote the complete model and item number when available.
For installed equipment, include a nameplate photo and serial number to distinguish similar suffix combinations.
Maintenance planning
Use the selected model’s operating manual for isolation, draining, inspection and reassembly. Report leakage, unusual noise, loss of output or visible wear with photographs and the operating history. DFIN can use the equipment identity and drawing positions to prepare a parts enquiry.
Request matching service parts →DFIN KNOWLEDGE BASE
DFIN technical notes for CD81EF-3U33B
Shanghai Dfin Pump Co., Ltd. has reorganised the available product facts into practical notes for identification, selection, application review and maintenance planning. These notes support an initial comparison; the final duty point and order code still require project-specific confirmation.
PERFORMANCE NOTE
CD81EF-3U33B: how to read the operating range
Family: ROTAN CD; Nominal size reference: 81 / DN80 / 3 in; Full model: CD81EF-3U33B; DESMI item number: 6113U. These figures describe the documented family or model reference; the usable duty point must be checked against speed, liquid properties, suction conditions and the selected drive.
MODEL IDENTIFICATION
CD81EF-3U33B: model and configuration checklist
Identification references include CD81EF-3U33B. Use the complete nameplate designation, serial number, connection, materials, seal arrangement and drive details when requesting a replacement or quotation.
APPLICATION REVIEW
CD81EF-3U33B: materials and suitable duties
Stainless-steel chemical-duty ROTAN construction; exact wetted materials and seal details follow the verified designation. Typical duties to review include Compatible corrosive chemical transfer, Replacement and configuration identification. Use the exact model and item number for identification. For a new order or replacement, confirm the duty point, fluid, viscosity, temperature, differential pressure, connection, seal, drive and current availability in the DESMI Selection Program or from the installed pump nameplate.
SERVICE PLANNING
CD81EF-3U33B: maintenance and spare-parts preparation
Quote the complete model and item number when available. Isolate the equipment, follow the applicable maintenance procedure and confirm every replacement item against the installed configuration before ordering.
PRODUCT & ENGINEERING FAQ
Questions about DESMI ROTAN CD81EF-3U33B
Use these answers to prepare a technically complete comparison and enquiry.
How should DESMI ROTAN CD81EF-3U33B be selected?
Start with the real duty point: fluid, flow, differential pressure or head, temperature, viscosity, solids, suction condition and operating pattern. DFIN then reviews size, materials, sealing and drive.
Are the listed maximum values a guaranteed operating point?
No. They describe independent catalog boundaries for the family or model. The selected point must be checked against the applicable curve, size, speed, fluid and drive arrangement.
What information confirms the complete model code?
Provide the full nameplate designation and serial number plus materials, seal arrangement, ports, drive, motor supply and any special option. A family name alone is not an order code.
Can DFIN help identify service parts?
Yes. Send the equipment identity, drawing position, existing part code, photographs, material and failure description. DFIN can prepare a parts enquiry matched to the installed configuration.
What should be included in the quotation request?
Include quantity, fluid data, operating point, installation, connection standard, available utilities, hazardous-area requirements and delivery destination. For a replacement, include the nameplate and current drawing.
SHANGHAI DFIN PUMP CO., LTD.
Turn this reference into a clear quotation.
Send the full model and serial number, quantity, fluid, required flow and pressure, temperature, viscosity, installation details and delivery destination. For a replacement, attach the nameplate and existing drawing.
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