Overview
EN ISO 14692-3:2017 - "Petroleum and natural gas industries - Glass‑reinforced plastics (GRP) piping - Part 3: System design (ISO 14692-3:2017)" is the CEN-adopted European version of the ISO guideline for designing GRP piping systems used in the petroleum and natural gas sectors. The standard provides systematic guidance for layout, hydraulic and structural design, detailing, fire performance, emissions control and mitigation of electrostatic discharge. It is intended to be read in conjunction with ISO 14692‑1 (general requirements).
Key topics and technical requirements
EN ISO 14692-3:2017 covers practical design issues and performance considerations, including:
- Layout requirements: space, accessibility, supports, pipe‑support contact and isolation for cleaning.
- Hydraulic design: flow characteristics, accepted velocity limits, erosion, particulate handling, cavitation and water hammer considerations.
- Structural and stress analysis: generation of design envelopes using partial factors, stress analysis methods, flexibility and stress‑intensification factors, modelling of fittings, allowable deflections and stresses, external pressure and buckling.
- Fire engineering: fire endurance, reaction to fire, spread of fire, fire‑protective coatings and related detailing to meet safety/performance goals.
- Electrostatic discharge (static electricity): control and mitigation methods to reduce ignition and emission risks.
- Documentation: requirements for installer and operator documentation, and normative annexes (cyclic de‑rating, flexibility and stress factors).
The standard provides normative annexes and prescriptive methods for deriving design envelopes and partial factors, and it addresses both aboveground and buried GRP piping considerations.
Practical applications
EN ISO 14692-3:2017 is applied where GRP (glass‑reinforced plastics) pipelines are selected for handling hydrocarbons, produced water, corrosive services or utility lines in oil & gas facilities:
- Onshore and offshore process piping systems
- Utility and service lines (e.g., cooling water, chemical injection)
- Buried and aboveground GRP installations requiring engineered support, fire protection and erosion control
Who should use this standard
- Piping and structural engineers designing GRP systems
- Project engineers and EPC firms in the petroleum and natural gas industries
- GRP pipe manufacturers, fabricators and system designers
- Safety, inspection and maintenance teams responsible for longevity and fire/emission mitigation
- Regulators and asset owners specifying design and procurement requirements
Related standards
- ISO 14692‑1 (general requirements) - read in conjunction with Part 3
- Other parts of ISO 14692 (design, fabrication and installation) as applicable
Keywords: EN ISO 14692-3:2017, GRP piping, glass‑reinforced plastics, petroleum and natural gas, system design, hydraulic design, structural design, fire endurance, electrostatic discharge.
