Overview
EN 13942:2009 (adopted from ISO 14313:2007, modified) is a European standard for pipeline valves used in the petroleum and natural gas industries. It specifies requirements and provides recommendations for the design, manufacture, testing and documentation of ball, check, gate and plug valves intended for pipeline transportation systems that meet ISO 13623. The standard excludes subsea pipeline valves (covered by ISO 14723), valves above PN 420 (Class 2500) and on‑land gas‑supply systems.
Keywords: EN 13942:2009, pipeline valves, ISO 14313, petroleum and natural gas, pipeline transportation systems.
Key topics and technical requirements
EN 13942:2009 addresses practical and technical aspects relevant to pipeline valve safety and performance, including:
- Valve types and configurations – ball, check, gate, plug; full‑opening, uni/bi‑directional, DBB (double‑block‑and‑bleed) and DIB (double‑isolation‑and‑bleed) features.
- Design requirements – dimensional, pressure‑rating and operational considerations aligned with ISO 13623.
- Materials – material selection guidance for pipeline service (includes references to ISO 15156 for H2S environments).
- Welding and fabrication – qualification of welders, welding procedures and acceptance criteria (references to EN/ISO and ASME welding standards).
- Quality control and inspection – manufacturing quality systems, inspection documents, and acceptance testing.
- Non‑destructive examination (NDE) – requirements and annexed acceptance levels for radiography, ultrasonic, magnetic particle and penetrant testing.
- Pressure testing – hydrostatic and leakage tests, with reference to ISO 5208 and other recognized methods.
- Coating, marking and documentation – protective coatings, marking examples and detailed documentation/purchase guidance.
- Units and conformance – use of SI or USC units, rounding rules, and responsibilities for demonstrating compliance.
Example technical detail included: the standard defines flow coefficient Kv (water flow at 5–40 °C producing 0.1 MPa pressure loss).
Applications
EN 13942:2009 is used to ensure reliable, safe valve components in onshore and offshore pipeline transportation of hydrocarbons (excluding subsea valves). Typical applications:
- Transmission pipelines for crude oil, natural gas and refined products
- Midstream pipeline installations and valve stations
- Valve specification for pipeline projects and procurement
Keywords: pipeline valve specification, valve testing, hydrocarbon pipeline valves.
Who should use this standard
- Valve manufacturers and fabricators
- Pipeline operators and asset owners
- Engineering, procurement and construction (EPC) firms
- Inspection and testing laboratories
- Regulatory and conformity assessment bodies
Related standards
EN 13942 references and aligns with many international standards (ISO, ASME, NACE, ASTM, MSS) such as ISO 13623, ISO 14313, ISO 5208, ISO 10497 and ASME B16.34 - useful cross‑references for detailed design, testing and material requirements.
