DESMI-ROTAN ROTAN HD81 Internal gear pump — size reference

Product Overview

Product Overview

HD81 identifies a size within the heavy-duty ROTAN cast-iron family. This page supports identification and replacement enquiries, including the full designation supplied to DFIN: HD81EFCHD-1M22B.

Technical Parameters

• Model / configuration: ROTAN HD81

Model and Configuration Guidance

Use the complete model string and item number when requesting a quotation. Pump materials, elastomers, connection standards and air-system options can vary between configurations.

Materials and Performance

Confirm chemical compatibility, solids size, temperature, suction conditions, discharge pressure and required flow before ordering. Published values are identification data and should not replace final application review.

Typical Applications

Chemical processing, water and wastewater, general industrial transfer and maintenance duties, subject to material compatibility and duty-point confirmation.

Selection Notes

Provide the liquid, concentration, temperature, viscosity, required flow, discharge pressure, suction arrangement, connection standard and installation environment. DFIN will confirm the suitable configuration.

Maintenance and Ordering

Isolate the air supply and process line before service. Match replacement parts by item number whenever possible and confirm pump series, size and wetted materials before installation.

Request a Quotation

Send the full model, item number, quantity and destination country. Shanghai Dfin Pump Co., Ltd. will confirm configuration, availability and quotation details.

WILDEN® is a trademark of its respective owner. DFIN uses the brand/model information for product identification and quotation and does not imply manufacturer status or official authorization unless separately stated.

Technical Specifications