DN 150 Pipe and Fitting Standard
A standardized 150 mm nominal bore that keeps high-flow industrial lines consistent from design to maintenance.
DN 150 Pipe Standard delivers a reliable flow solution for high-capacity systems, defining a 150 mm nominal diameter in industrial installations. In addition, it answers large-bore piping needs. Moreover, it plays a critical role in conveying water, steam, oil and chemical fluids. Consequently, it brings standardization to process lines that demand high flow rates.
The nominal diameter is 150 mm (DN 150). Connection types include flanged, threaded or welded options depending on the application. Material choices cover cast iron, steel, stainless steel and PPR. Pressure classes range across PN 10, PN 16 and PN 25 by model, while the temperature range spans -20°C to +200°C depending on material. This compatibility extends to flanges, valves, elbows and reducers.
DN 150 Pipe Standard — Technical Specifications
Petrochemical plants, power stations and water treatment facilities frequently select this size. Furthermore, food and pharmaceutical industries use it in hygienic flow lines. As a result, its wide application range offers a flexible solution. In addition, being a standard size simplifies work for project engineers and speeds spare part supply and system expansion.
Key Advantages
- Standard size allows easy procurement and replacement across all sectors
- High flow capacity provides uninterrupted flow in large-scale process lines
- Multiple material and connection options adapt to different operating conditions
Applications
- Petrochemical plants for conveying crude oil and derivatives
- Power stations for steam and hot water lines
- Water treatment and distribution plants for high-capacity transfer lines
Therefore, DN 150 Pipe Standard stands out as an indispensable reference in industrial piping projects. ORFA Industrial has supplied all components of this standard since 1985, and ORFA supplies worldwide and provides technical support.
ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.
Your Reliable Partner in Industrial Flow Technologies

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