nominal diameter


Also found in: Acronyms.

nominal diameter

[′näm·ə·nəl dī′am·əd·ər]
(geology)
The diameter computed for a hypothetical sphere which would have the same volume as the calculated volume for a specific sedimentary particle. Also known as equivalent diameter.

nominal diameter

A designation used to specify the size of a pipe, bolt, rivet, reinforcing steel bar, or rod, not necessarily equal to the exact diameter.
References in periodicals archive ?
The material is approved for application as internal lining on pipes with nominal diameter in excess of 300 mm in contact with potable water.
The airframe parachute system weights approximately 55 pounds and is a multi- conical, extended-skirt parachute with a nominal diameter of 54 feet.
Tenders are invited for Renewal, reinforcement, rehabilitation or extension of drinking water and industrial water supply networks with a nominal diameter of less than 300 mm
From a nominal diameter of DN 200mm the valve has a position indicator instead of the digital display.
Tenders are invited for Coating Refurbishment Of Gspl Mainline Pipe 8 Inch Nominal Diameter By Application Of Cold Applied Tape In Assam Sector Under Group C
Multi Core , Armoured Cable Of Nominal Diameter Up To And Including 13 Mm Under The Armour Shall Be Armoured With Galvanized Round Steel Wire And Multi Core Armoured Cables Of Nominal Diameters Greater Than 13 Mm Under The Armour Shall Be Armoured With Galvanized Steel Strip.
The Object Of The Contract Is The Supply Of 3 Mm Polyethylene Pipes (Pe 100) With A Solid Wall According To 12201-2, Nominal Diameter Dn 400 Mm, Nominal Pressure Pn 10 Atm And Pn 16 Atm, For Irrigation Needs Of The Public Sector.
Multi Core, Armoured Cable Of Nominal Diameter Upto And Including 13 Mm Under The Armour Shall Be Armoured With Galvanized Round Steel Wire And Multi Core Armoured Cables Of Nominal Diameters Greater Than 13 Mm Under The Armour Shall Be Armoured With Galvanized Steel Strip.
Multi Core, Armoured Cable Of Nominal Diameter Up To And Including 13 Mm Under The Armour Shall Be Armoured With Galvanized Round Steel Wire And Multi Core Armoured Cables Of Nominal Diameters Greater Than 13 Mm Under The Armour Shall Be Armoured With Galvanized Steel Strip.
The UltraSpeed series of ball screws is available in nominal diameters from 32 to 100 mm, and enable speed ratings up to and beyond dN=160,000.