Nominal Pipe Size Definition
Nominal refers to pipe in non specific terms and identifies the diameter of the hole with a non dimensional number for example 2 inch nominal steel pipe consists of many varieties of steel pipe with the only criterion.
Nominal pipe size definition. Nominal pipe size nps is a set of standard north american sizes to designate pipe diameter and thickness for pipes that are used for low and high pressures and temperatures. For example when you say 6 pipe the 6 is the nominal size of that pipe. Nominal pipe size nps is a north american set of standard sizes for pipes used for high or low pressures and temperatures. Nominal pipe size nps is a north american set of standard sizes for pipes used for high or low pressures and temperatures.
It indicates standard pipe size when followed by the specific size designation number without an inch symbol. This system of measurements is closely but not exactly correlated with the actual size of the pipe and the system used for describing pipe measurements can get rather arcane. Nominal pipe size is the name given to an arbitrarily agreed upon sizing system used in the united states. The metric designations conform to international standards organization iso usage and apply to all plumbing natural gas heating oil and miscellaneous piping used in buildings.
Nominal pipe size nps is a dimensionless designator of pipe size. For example nps 6 indicates a pipe whose outside diameter is 168 3 mm. To understand this concept you have to learn the way pipes are manufactured. Nominal pipe size nps is a north american set of standard sizes for pipes used for high or low pressures and temperatures.
Nominal means something that is not specified and in terms of pipe sizes it refers to the diameter of the pipe hole with a dimensionless number. Nominal pipe size nps is the number that defines the size of the pipe. The metric equivalent is called dn or diametre nominel. Nominal pipe size nps is a dimensionless designator of pipe size.
In plumbing pipe size is referred to as nominal pipe size nps or nominal pipe size. Nominal pipe size refers to only the outside diameter od of a pipe making it somewhat vague. It indicates standard pipe size when followed by the specific size designation number without an inch symbol. Nominal pipe size nps is a standardized measurement used to describe the size of pipe in north america while other regions use the metric diametre nominal dn measurement system.