TL;DR
For NOV 10-P-130, separate a liner size mentioned in a source note from a liner column carrying performance data. NOV document 25-101131 lists 6¾-inch and 6½-inch regular liners in the page 29 footnote, but that model's chart prints only four columns: 6¼, 6, 5½ and 5 inches.
- Classify each size by the evidence actually supplied.
- Leave missing performance fields unconfirmed; request the applicable chart.
- Confirm equipment identity and configuration separately from reading the booklet.
This guide helps prepare a document inquiry. It does not confirm replacement-part fitment, current stock or permission to operate a pump.
Scope: which 10-P-130 documents are being compared?
The NOV booklet, PDF pages 27 and 29 supplies two different records: the model specification table and the separate 10-P-130 Performance Chart. Page 29 also contains a 9-P-100 chart; that heading belongs to another model.
The specification table gives 6¾ inches (171.5 mm) as the maximum fluid-cylinder liner bore for 10-P-130 and refers readers to the following charts for other bores. That specification does not populate a performance column absent from the chart. Treat the booklet as general reference information; use the applicable equipment documents for decisions about an installed unit.
The existing website catalog's 10-P-130 numeric and extra-column provenance has unresolved differences from this source. This article does not adopt those catalog values. The pump directory remains a navigation entry; the model-specific product data needs separate reconciliation.
What does the extra-size footnote establish?
The 10-P-130 footnote identifies 6¾-inch (171.5 mm) and 6½-inch (165.1 mm) sizes as available in regular liners in that document. It supplies neither a corresponding performance column nor a replacement part number. NOV PDF page 29.
Save the statement under “source-listed size”, with its page and model heading. Do not turn the booklet's availability wording into a claim about today's inventory, lead time or suitability for the pump being discussed. A named size is useful evidence for asking the next question; it does not finish the configuration check.
Which fields are actually populated in the chart?
Four printed liner columns carry pressure, flow and volume-per-stroke entries. For example, the 6-inch (152.4 mm) column gives 514 GPM (1946 LPM) at the marked 140 SPM row. Preserve these printed fields together; the chart states 90% mechanical efficiency and 100% volumetric efficiency. NOV PDF page 29.
The example locates an existing entry. It is not a measured result or an approved operating point. It provides no basis for filling flow, pressure or volume fields for the footnote-only sizes. Do not borrow the neighboring 9-P-100 table, apply an unlabeled calculation or present another unverified table as if it came from this page.
How should the inquiry record show missing evidence?
Use a document-status table so a recipient can see what is established and what remains open. The following classification is an editorial handoff aid, not an OEM procedure:
| Record | Evidence in this booklet | Still needed for a decision |
|---|---|---|
| 6¾-inch size | Model specification plus regular-liner footnote | Applicable performance data, configuration and part identity |
| 6½-inch size | Regular-liner footnote | Applicable performance data, configuration and part identity |
| Four displayed chart columns | Model-specific performance entries and assumptions | Applicability to the installed pump and approved limits |
| Replacement-part request | A size or chart excerpt alone | Traceable part number, relevant drawing and equipment configuration |
Keep “not supplied by this chart” visible rather than using zero or importing a neighboring value. If another document is provided, identify its issuer, confirmed revision and model/configuration scope before comparing it. A mismatch remains a question for the responsible reviewer, not an instruction to substitute data.
Liner evidence checklist
These are suggested document checks for a technical inquiry:
- Attach the pump identity and available serial information.
- State whether the request concerns a source-listed size, performance point or replacement part.
- Save the exact chart heading, page and original excerpt.
- Identify the proposed liner size; mark installed configuration as unconfirmed when necessary.
- Request the applicable performance sheet for a footnote-only size.
- Request part identity and relevant drawing separately from performance data.
- Record conflicting sources, missing fields and the person responsible for resolving them.
A complete packet makes the unanswered questions visible. It still needs equipment-specific review before procurement or operation.
FAQ
Does the 6¾-inch maximum bore supply a performance row?
No. A maximum-bore specification does not add a missing liner column to the separate chart. Obtain the applicable performance document.
Are 6¾-inch and 6½-inch values absent because those sizes cannot be used?
The chart's missing columns do not prove that conclusion. The booklet lists the sizes in a regular-liner footnote, while equipment applicability remains unconfirmed.
Can the 6-inch flow entry be used for a footnote-only size?
No. It belongs to the 6-inch column and selected speed row. Keep an unprovided size's performance fields open until supported by the applicable source.
Does the footnote confirm stock or a replacement part number?
No. It is a size statement in the cited document. Current supply and equipment-specific part identity require separate confirmation.
Source and related records
Original source: NOV, How to Treat Your Type P Triplex Mud Pump, document 25-101131, PDF pages 27 and 29. Page 29's original image and extracted text were checked on October 10, 2026, Los Angeles time. The daily editorial date is October 11, Beijing time. No equipment-specific document or current supply evidence has been established here.
Related reading: 9-P-100 volume per stroke and flow and 8-P-80 input and hydraulic power fields. This guide addresses the distinct 10-P-130 inquiry task: classifying specification, footnote, chart and part-identity evidence before requesting missing documents.
Next step
For a technical document inquiry, send the pump identity, proposed liner size, original source excerpt and the missing fields you need resolved. Ask for performance evidence and replacement-part identification as separate deliverables. Keep unresolved applicability explicit until the responsible reviewer confirms the relevant documents.