DN (Nominal Diameter) is a standardized reference size for classifying pipes and industrial hoses, while D (Outer Diameter) is the exact external measurement in millimeters. Both matter when choosing hoses or pipes: DN ensures compatibility across fittings and systems, while D provides the precise measurement needed for proper installation and performance.
When selecting an industrial hose, one of the first specifications you look for is the hose pressure rating. It states the hose’s Maximum Working Pressure (MWP) under normal operation.
In industrial environments, heat is a constant enemy of rubber and plastic hose assemblies— even when you use a heat resistant hose.
You’ve invested in a perfectly rated industrial hose, expertly crimped with high-quality couplings — yet one of the most common causes of industrial hose connection leaking is often overlooked: the gasket or seal.
Let's dive into the most important coupling selection criteria and understand why choosing the right hose couplings deserves as much, if not more, attention than the hose itself.
If you are interested, please get in touch with us.