UNB-600 Mud Pump Parts: Hydraulic Block and Drawing Reference Guide

UNB-600 mud pump parts should be identified by the component drawing and assembly position. The supplied catalogue names the pump УНБ-600 and identifies its general assembly as 4066.53.000СБ.

Use the complete UNB-600 designation when identifying the pump. A reference from a similarly named UNBT series pump is not a replacement cross-reference unless the applicable drawings establish the match.

Specification and identification points

Separate the hydraulic block from its internal parts

The catalogue lists the hydraulic block as 4066.53.700СБ. Within its breakdown, the valve, valve seat, spring, guide and seals have their own drawing references. An enquiry for a complete block therefore requires a different scope from an enquiry for valve-service parts.

The hydraulic-box references also distinguish right-hand 4066.53.703-1СБ from left-hand 4066.53.704-1СБ. Include the installation side and photographs rather than treating the suffix or orientation as optional.

What this source can and cannot specify

This 21-page document is a parts catalogue. It supports the component references below, but it does not provide a verified pump duty table for this guide. Rated power, flow, pressure and stroke should come from the actual pump nameplate or its applicable operating manual; the number 600 alone is insufficient.

The following is a selected reference table checked against the source pages. It is not the complete pump bill of materials. A pump model or a document number is not a substitute for the component drawing reference.

Retain the original characters in a reference, including the Cyrillic letters СБ where shown. Similar-looking Latin letters or an omitted suffix can make a quotation ambiguous. The references identify entries in these catalogues; they do not prove that a replacement from a different edition will fit.

Information to include in a parts enquiry

• Complete pump designation, manufacturer shown on the nameplate, serial number and year.
• Original drawing or catalogue reference, including every suffix and the figure / position number.
• Part photographs, key mating dimensions and the assembly in which the part is installed.
• For fluid-end consumables: liner bore, piston construction, seal arrangement and required quantity.
• Delivery destination and the list of parts required for the same maintenance job.

For a UNB-600 enquiry, send the reference together with the pump details for identification. See our mud pump spare parts enquiry page or oilfield equipment parts catalogue. Availability and suitability require confirmation for the actual configuration.

Document references

• 600: UNB-600 illustrated parts catalogue. Page numbers in the tables identify the PDF file page, counted from 1.

These references describe the supplied documents. They do not establish present inventory, original-manufacturer authorisation or interchangeability with another pump revision.