Skip to content

PSTD-008

Pack: F_OVERLAY Severity: critical

ISO 228-1 pipe threads must be parallel and match designated size

Rule Card

Field Value
Pack F_OVERLAY — Industry Overlay and Compliance
Title ISO 228-1 pipe threads must be parallel and match designated size
Severity critical
Check logic Hybrid
Applies to Compliance overlay
Inputs required hole_features
Fix template Replace tapered threads with ISO 228-1 parallel geometry (or change the callout standard) and confirm the mating component uses the same designation.

Short Description

Checks that modeled ISO 228-1 pipe threads are parallel (not tapered) and match the designated nominal size for manufacturability and assembly interchangeability.

When It Applies

This rule runs only when an overlay activates F_OVERLAY. It targets Compliance overlay.

Evidence Profile

Input Category
hole_features Geometry

References

Reference Type Title
REF-THR-228-1 standard ISO 228-1:2000 — Pipe threads where pressure-tight joints are not made on the threads — Dimensions, tolerances and designation

Compiled Threshold Metadata

Field Value
compiled_from pilot_deep_research
source_rule_id PILOTSTD-008
source_analysis_mode geometry_dfm
source_standard_clause None
source_predicate {'left': 'cad.threads.iso228_all_conformant', 'op': '==', 'right': True}
source_evaluator_hint Detect and classify pipe threads; for ISO 228-1, verify parallel geometry and nominal designation against the selected size.
source_pilot_sets ['SET_A_MECH_ROBOT']
source_evidence_quality official_abstract
source_needs_manual_confirmation True
source_inputs ['cad.threads.iso228_all_conformant']
compiled_inputs ['hole_features']
unknown_source_inputs []
compile_status executable_now

Sources

  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\manifest.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\rule_library.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\references.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\process_classifier.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\overlays.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\roles.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\report_templates.json
  • D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\ui_bindings.json