Piping vs Pipeline: Understanding the Differences and Standards in the Oil & Gas Industry

January 26, 2026

Hello Pipe Enthusiasts!

In the oil, gas, and industrial sectors, the terms piping and pipeline often sound similar and are sometimes confused. Yet, they have fundamental differences in function, location, complexity, and technical standards. This #BPIPipeInsights! article will help you understand the distinction between piping as a facility system and pipeline as a long-distance transportation system.  

What Is Piping?
Piping refers to the network of pipes within industrial facilities such as refineries, processing stations, factories, power plants, or tank farms.

Characteristics of Piping:  

  • Short distances, limited within a facility
  • Variable diameters depending on process requirements
  • Numerous components such as valves, fittings, and flanges
  • Handles high pressure and high temperature
  • Transports various fluids: gas, oil, steam, chemical liquids  

Standards Applied:  

  • ASME B31.1 – Power Piping
  • ASME B31.3 – Process Piping
  • ASME Section II/V/IX
  • ASTM, ANSI  

What Is a Pipeline?
Pipeline refers to long-distance piping systems used to transport fluids from one location to another, such as:

  • From production fields to processing facilities
  • From stations to ports or storage
  • From remote areas to cities or other countries  

Characteristics of Pipeline:  

  • Very long distances, reaching hundreds of kilometers
  • Uniform diameter
  • Limited valves, usually for isolation purposes
  • Operates outdoors, including wild areas and offshore  

Key Focus Areas:  

  • Corrosion protection (FBE, 3LPE, 3LPP, CWC)
  • Longitudinal or spiral welding (HFW/ERW, LSAW, HSAW)
  • Pressure and safety testing  

Standards Applied:  

  • ASME B31.4 – for liquid pipelines
  • ASME B31.8 – for gas pipelines
  • API 5L, ISO 3183, DNV, NACE  

Quick Comparison

Element

Piping (Facility Systems)

Pipeline (Transportation Systems)

Location

Inside facilities (plants, refineries, power stations)

Outside facilities (fields, cities, offshore)

Distance

Short, limited within one facility

Very long, up to hundreds of kilometers

Diameter

Varies according to process needs

Uniform, adjusted to flow capacity

Valves & Fittings

Numerous (valves, flanges, fittings

Limited, mainly isolation valves

Complexity

High, with many components

Lower, focused on transport efficiency

Corrosion Protection

Important

Critical

Main Standards

ASME B31.1 / B31.3, ASTM, ANSI

ASME B31.4 / B31.8, API 5L, ISO 3183, DNV, NACE


Conclusion
Understanding the differences between piping and pipeline is crucial in planning oil & gas projects and industrial infrastructure. Piping is the internal system within facilities, while pipeline is the long-distance transportation system. Both use steel pipes, but with different standards and characteristics.

Bakrie Pipe Industries is ready to support steel pipe requirements for both systems, whether for industrial facilities or long-distance distribution of oil, gas, steam, and chemical liquids, with products that meet international standards and project needs.

Stay tuned for the next #BPIPipeInsights! article. If you require steel pipes according to the standards discussed, please contact our Marketing or Sales team, who are ready to assist you.

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