UNBT-1180L2 Mud Pump Parts: Bulanash References and Seal Selection

For UNBT-1180L2 mud pump parts, retain both the L2 designation and the source drawing family. The supplied 2013 Bulanash catalogue identifies УНБТ-1180 L2 as УНБТ 02.00.00.000 СБ on its general-view drawing.

The reference material covers L1 and L2, so retain the complete suffix when identifying the installed unit. The 2004 manual describes L2 without the base frame; confirm the actual pump and later catalogue edition before ordering installation components.

Specification and identification points

Preserve the piston and liner diameter suffixes

The Bulanash hydraulic-block table lists 96074.53.230 СБ for the 180 mm piston, followed by separately suffixed entries for 170, 160, 150, 140 and 190 mm. The liner entries and sealing-ring groups must be checked against the same installed bore and sealing arrangement.

The source prints the liner drawing family as 6606.53.034. This guide keeps that prefix exactly as printed rather than adding a digit by analogy with nearby 66060 or 66097 references. Supply the original liner drawing or a clear reference photograph to confirm the requested part.

Identify power-end components from their own assembly

The crank-and-crosshead mechanism is identified as 66086.53.100 СБ on its assembly drawing. Its connecting rod, shaft, crosshead rod and crosshead have separate entries. The mechanism reference should not be used as though it were the part number of each internal component.

The URBO L1 catalogue uses other drawing families. No interchangeability between those references and the Bulanash entries is established by this guide. A complete enquiry should include the pump manufacturer, year, serial number and the source page used for identification.

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 UNBT-1180L2 enquiry, send the reference together with the pump details for identification. See our mud pump spare parts enquiry page or UNBT series parts catalogue. Availability and suitability require confirmation for the actual configuration.

Document references

• 1180B: Bulanash UNBT-1180L1 (L2) parts catalogue, 2013. Page numbers in the tables identify the PDF file page, counted from 1.
• 1180M: UNBT-1180L1 / UNBT-1180L2 operating manual, 44024.53.055РЭ, 2004. Page numbers in the tables identify the PDF file page, counted from 1.
• 1180U: URBO UNBT-1180L1 parts catalogue, 44024.53.055КДС. 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.