ISO 14692-3:2017

Overview

ISO 14692-3:2017 - Petroleum and natural gas industries - Glass-reinforced plastics (GRP) piping - Part 3: System design - provides guidelines for the design of GRP piping systems used in oil and natural gas processing and utility services. The standard sets out requirements and recommendations covering layout dimensions, hydraulic and structural design, detailing, fire endurance and spread, emissions control and electrostatic discharge mitigation. It is intended to be read in conjunction with ISO 14692‑1 (vocabulary, applications and materials) and ISO 14692‑2 (qualification and manufacture).

Key topics and technical requirements

The document addresses practical and technical elements essential to safe, compliant GRP piping system design, including:

• Layout requirements: space planning, system supports, contact surfaces, isolation and access for cleaning, vulnerability to point loads, abuse, UV exposure and low temperature effects.
• Hydraulic design: flow characteristics, velocity limits, erosion control (including particulate considerations and piping configuration), cavitation and water hammer mitigation.
• Design envelopes and factors: generation of design envelopes using partial factors for design life, chemical degradation, fatigue and cyclic loading; guidance on combining part factors and partial factors.
• Stress analysis: recommended analysis methods, software considerations, flexibility and stress intensification factors, modelling of fittings, allowable deflections and allowable stresses.
• Buckling and external pressure: guidance on shell and Euler buckling, buried piping buckling pressures and upheaval buckling.
• Fire and safety: fire endurance, fire reaction, protective coatings, spread of fire and emissions control.
• Static electricity: control and mitigation of electrostatic discharge risks.
• Documentation: installer and operator documentation requirements for safe installation, operation and maintenance.

Applications and users

ISO 14692-3:2017 is aimed at professionals involved in the lifecycle of GRP piping for petroleum and natural gas industries:

• Design engineers and contractors creating piping layouts and performing hydraulic/structural analysis
• Suppliers and manufacturers qualifying components and providing prefabricated spoolpieces
• Project principals and asset owners specifying system performance and procurement criteria
• Certifying authorities and regulatory agencies assessing compliance with industry practice
• Installers and operators relying on documentation for safe installation, maintenance and inspection

Practical applications include design of aboveground and buried GRP piping for processing plants, utility services, corrosion-resistant fluid handling, and areas where lightweight, non-metallic piping offers advantages.

Related standards

• ISO 14692-1:2017 (vocabulary, symbols, applications and materials)
• ISO 14692-2:2017 (qualification and manufacture)
• ASTM D2992, ASTM D2412, AWWA Manual M45 (referenced for test practices and design guidance)

Keywords: ISO 14692-3:2017, GRP piping, glass-reinforced plastics, system design, petroleum and natural gas, hydraulic design, structural design, fire endurance, electrostatic discharge.