Overview
ISO 17602:2014 - Ships and marine technology - Metal valves for use in flanged pipe - Face-to-face and centre-to-face dimensions - establishes standardized face‑to‑face and centre‑to‑face dimensions for two‑way metal valves used in flanged pipe systems for ship and marine services. The standard defines a basic series of dimensional values that enable dimensional interchangeability of valves across shipbuilding and marine piping applications, compatible with flanges conforming to ISO 7005‑1 / ‑2 / ‑3 or equivalent national standards.
Key topics and technical requirements
- Scope: Applies to two‑way metal valves used in flanged pipe systems for ships and marine services.
- Valve types covered: Gate (rising/non‑rising), globe (straight/angle), check (lift/swing/angle), rubber‑seat butterfly (wafer/flanged), SDNR (screw‑down non‑return), and inside‑screw non‑rising stem gate valves (see figures in the standard).
- Dimensional series:
- Nominal sizes (DN / A) from DN15 up to DN1200.
- Pressure (K‑series) values: 5, 10, 16, 20, 30, 40 (and those in ISO 5752).
- Tables and tolerances:
- Face‑to‑face and centre‑to‑face dimensions are given in tables (Tables 1–5).
- Tolerances for straight/angle patterns: ≤250 mm ±1.5 / ±0.8 mm; ≥300 mm ±3.0 / ±1.5 mm (Table 6).
- Tolerances for rubber‑seat butterfly valves vary by size (Table 7).
- Compatibility note: Pressure/temperature ratings are governed by relevant valve product standards and materials; ISO 17602 focuses on dimensional interchangeability rather than strength ratings.
Applications and who uses it
ISO 17602:2014 is practical for:
- Shipbuilders and marine engineers specifying valves for new builds or retrofits.
- Valve and flange manufacturers designing products to match marine piping systems.
- Naval architects, ship outfitters, and procurement engineers ensuring dimensional compatibility with flanged connections.
- Classification societies and inspection bodies verifying dimensional conformity.
Benefits include simplified procurement, interchangeability of spare parts, and reduced installation risks in marine piping systems.
Related standards
- ISO 5752 - Face‑to‑face and centre‑to‑face dimensions for industrial valves (complements ISO 17602).
- ISO 7005‑1 / ‑2 / ‑3 - Metallic flanges (steel, cast iron, copper alloys) - mating flange dimensions.
- ISO 8277 - Ships and marine technology - Pipework and machinery - Information transfer.
Keywords: ISO 17602:2014, metal valves, face-to-face dimensions, centre-to-face dimensions, flanged pipe, ships, marine technology, valve dimensions, DN, K-series, ISO 7005.