Conflicting hydraulic catalogue specifications: a mining buyer’s review checklist

1. Separate source transcription from an approved specification

There are two different questions in a catalogue review: what does the source print, and what is the supplier confirming for this order? A faithful transcription answers only the first. Keep the original wording, unit, model suffix and drawing reference in the inquiry, even when an entry appears to contain a typographical error.

In the CHILL product library, notes identify unresolved source discrepancies rather than selecting a preferred value. The examples below come from the supplied catalogue records. They are document-review examples, not new product ratings, a recommendation to use a particular component, or independent verification of the catalogue.

Reference: CHILL product library — source-transcribed catalogue records

2. Do not silently repair an unfamiliar flow unit

Several catalogue entries print flow with the unit L/mm. A buyer may suspect that another unit was intended, but changing the text in a spreadsheet would hide an unresolved question. Copy the printed value into a source-evidence field and leave the confirmed flow and unit blank until a model-specific response is available.

Ask for the nominal flow, its intended unit and the conditions applicable to the offered configuration. Keep any response linked to the quotation and data-sheet revision. If a supplier confirms a correction, retain both the source transcription and the corrected, approved specification so the purchasing team can see why the order differs from the catalogue.

Reference: DS10 — pressure, flow-unit and material discrepancy notes

3. Treat conflicting values as an open question, not a range

The DS10 record illustrates why choosing the larger number, the smaller number or an average is not a sound document-control shortcut. Its English pressure text prints 45MPa while the Chinese text prints 40MPa. Neither is selected as the operating rating in this guide. The NZJF(16/31.5D) record presents a separate flow conflict: 125L/mm in the English line and 320L/mm in the Chinese line. These are conflicting source statements, not the endpoints of an approved range.

Reference: DS10 — pressure, flow-unit and material discrepancy notes · NZJF(16/31.5D) — conflicting flow text

4. Resolve configuration and supply scope separately

A matching model label does not necessarily settle the physical configuration. The catalogue repeats FAD500/50 with different product photographs and dimension drawings. The library preserves that discrepancy instead of inventing a new variant code. Ask the supplier to identify the applicable drawing, revision and supplied configuration, then have the responsible equipment specialist compare them with the requirement.

Likewise, a photograph-only panel is not a complete data sheet. The FDY400T-01 panel provides an image and label without pressure, flow, material, connection dimensions or operating limits. Request the missing information; do not inherit values from a nearby catalogue row. Specify whether the inquiry concerns a complete assembly, an individual component or an accessory.

Reference: FAD500/50 — repeated configurations · FDY400T-01 — photograph-only catalogue panel

5. Use a short clarification register

One controlled register is easier to review than corrections scattered across email replies. Give each discrepancy an ID and keep the commercial quotation reference beside the technical evidence. The following fields can be copied into a purchasing worksheet.

Use status labels such as “awaiting supplier clarification,” “awaiting technical review” and “approved for this order.” A reply that merely repeats a model number is not an answer to an unresolved rating or configuration question. Reopen the affected line if the offered part or drawing changes.

• Item and quantity: full printed model, suffix, equipment or assembly reference, and required supply scope.
• Source evidence: catalogue page, exact disputed text and the relevant product-record link.
• Required confirmation: a specific question about the value, unit, material, interface or configuration.
• Supplier response: exact offered specification, applicable drawing or data sheet, revision and response date.
• Review decision: responsible reviewer, accepted specification or unresolved exception, and approval reference.

6. Keep documentation checks distinct from technical acceptance

A certificate reference does not resolve a conflicting catalogue value. Review the exact product and model scope, legal holder and current documentation separately from the specification comparison. The website’s English certificate pages are explicitly unofficial reference translations, not substitutes for current original documents or registry verification.

Before releasing an order, ask the responsible equipment specialist to review the confirmed specification against the actual application and the equipment manufacturer’s requirements. This guide does not authorize installation, pressure adjustment, substitution or disassembly. Its purpose is to expose unanswered purchasing questions before they become assumptions in an order.

Reference: Certificate library — translation and verification limitations