TL;DR — Keep the complete Roughneck valve-column name
For a Mission Roughneck valve enquiry, match the complete product name before using a pressure or fluid-condition statement. NOV's comparison table lists both Roughneck and Roughneck HP at 7,500 psi, while giving different solids-content descriptions. HP alone therefore does not establish a higher pressure value or broader solids capability. WL and Bonded names also identify separate columns; their properties must not be mixed. NOV MISSION Valves, PDF page 1.
Scope — Which documents and variants are covered?
This review uses NOV's MISSION Roughneck Drilling Valves and Seats flyer, copyright 2021, JIRA 15581, and MISSION Valves, copyright 2022, JIG 22-RT-AO-0700, PDF page 1. Source checked on October 19, 2026, Los Angeles time. Their latest applicable revision and applicability to a particular valve, seat or fluid-end assembly remain unresolved.
These are product references used for identity checking, not serial-specific installation or operating instructions. The record fields below are editorial guidance. This article does not choose a replacement assembly, give a numeric solids threshold, supply a temperature setting, or approve a valve-and-seat combination.
Does HP mean a higher pressure or suitability for more solids?
Not on the basis of the suffix. On the cited table page, the columns named Roughneck and Roughneck HP both show full-open style, polyurethane insert material, Insert type and a PSI value of 7,500. The solids descriptions differ: the Roughneck column discusses higher solids concentration, whereas Roughneck HP describes low-to-moderate solids content. Keep each description with its own column. NOV MISSION Valves, PDF page 1.
Those qualitative descriptions are not numerical solids limits or a recommendation for every mud formulation. A shared pressure entry does not make the variants interchangeable, and a higher-power pump does not identify the installed valve. Record actual duty information separately and seek confirmation against the identified component's applicable documents.
Why must WL and Bonded remain in the name?
Because the table assigns them separate columns and construction fields. Roughneck WL and Roughneck HP WL remain in the Insert type group; Roughneck Bonded appears under Bonded type. Do not move a condition from a Bonded or WL column to an entry identified only as Roughneck HP. The broader flyer says the line offers standard and HP designs with insert compounds for specific drilling conditions; it does not select the compound for an individual installation. NOV MISSION Valves, PDF page 1; NOV Roughneck flyer, PDF page 1.
Retain the full name alongside the compound and component reference. Colour or a similar photograph alone does not resolve the installed variant. The table's Max. Temp. row does not print a unit beside that heading on the cited page; this article therefore does not assign a unit or publish a converted temperature from that row. Request a verified unit and compound-specific temperature reference. Likewise, a tick for a broad fluid category is not a complete temperature, solids and chemical-compatibility assessment.
Does the table establish a replacement valve-and-seat match?
No. The pressure, construction and size/reference rows help distinguish listed products, but do not establish the installed fluid-end geometry, required seat, drawing revision or condition of a particular assembly. The flyer's family-level pressure description is also not a serial-specific replacement approval.
For an enquiry, preserve the valve name, readable component references, seat identity, pump and fluid-end identification, and available drawing revision. Identify the proposed replacement separately from the existing arrangement. A matching number or family name does not complete the equipment-specific assessment. The earlier Type P pairing article concerns maintenance position and service history; it does not select a Roughneck variant or establish cross-variant interchangeability.
Evidence table and enquiry checklist
| Evidence field | What the cited references distinguish | What remains to confirm for the actual unit |
|---|---|---|
| Roughneck versus Roughneck HP | Both have a 7,500 psi entry; their solids-content descriptions differ | Exact variant, duty information and applicable component documentation |
| WL and Bonded names | Separate columns; Insert and Bonded type fields are distinct | Complete product name, compound and assembly reference |
| Temperature and fluid categories | Separate table fields that must stay with the correct column | Verified temperature unit, compound limits and actual fluid conditions |
| Replacement scope | Product and size/reference information, not an installed pairing assessment | Valve and seat references, fluid-end drawing, revision and proposed component set |
- Record the full variant name without dropping HP, WL or Bonded where documented; leave unreadable identity unresolved.
- Keep the pressure entry and qualitative solids description attached to the same source column.
- Supply available fluid, solids and temperature information with units, without inventing a solids-percentage threshold from a qualitative label.
- Attach the valve, seat and fluid-end references and state whether the request is identification, replacement or a proposed variant change.
- Request clarification of missing units, conflicting names or incomplete drawings. A completed enquiry record does not certify condition or authorize reassembly or operation.
FAQ
Does Roughneck HP have a higher pressure value than Roughneck in this table?
No. Both cited columns show 7,500 psi. The suffix alone does not establish a different installed rating.
Can the Roughneck higher-solids description be applied to Roughneck HP?
Do not transfer it. The HP column describes low-to-moderate solids content; the source gives no numeric concentration threshold for this comparison.
Are Roughneck HP, Roughneck HP WL and Roughneck Bonded one interchangeable product?
The table presents separate product columns and construction fields. It does not establish that those names identify interchangeable components for the installed assembly.
Can the Max. Temp. row be converted without checking its unit?
No. Verify the unit and the exact compound and variant reference first. This article supplies no inferred temperature setting or conversion from that row.
Sources and related links
- NOV MISSION Valves — PDF page 1: full column names, type and material fields, pressure entries and qualitative solids descriptions; copyright 2022, JIG 22-RT-AO-0700.
- NOV MISSION Roughneck Drilling Valves and Seats — PDF page 1: family description, standard or HP design and compound options; copyright 2021, JIRA 15581.
- NOV 12-P-160 equipment catalog: equipment navigation only; a catalog entry does not confirm a Roughneck valve or seat for an installed pump.
- Type P valve-and-seat pairing records: separate maintenance traceability topic, not variant selection.
Next step — Provide the complete variant and seat evidence
For a Roughneck valve document enquiry, send the full available variant name, valve and seat references, fluid-end identification, drawing revision and intended duty information. Mark missing units or component identity explicitly so the request seeks clarification rather than assumes a match. This review makes no stock, delivery, life or performance guarantee.