| NPSH3 at 120 % of flow | The net positive suction head available to a pump under test at a 120% of the rated flow when the pump head is decreased by 3 percent as a result of cavitation caused by a decreasing available suction head | Number |
| NPSH3 at rated flow | The net positive suction head available to a pump under test at a the rated flow when the pump head is decreased by 3 percent as a result of cavitation caused by a decreasing available suction head | Number |
| NPSHA available at 120% of rated flow | NPSHA that is available for a particular pumping system at 120% of rated flow condition | Number |
| NPSHa-NPSH3 margin at rated flow | The net positive suction head available at rated flow minus the NPSH3; the net positive suction head available to a pump under test at a the rated flow when the pump head is decreased by 3 percent as a result of cavitation caused by a decreasing available suction head | Number |
| NPSHa-NPSH3 margin in allowable operating region | The net positive suction head in the operating range of flow minus the NPSH3; the net positive suction head available to a pump under test at a the operating range of flow when the pump head is decreased by 3 percent as a result of cavitation caused by a decreasing available suction head | Number |
| actual length | The actual length of the functional or physical object | Number |
| alternate flow positive suction head available | NPSHA that is available for a particular pumping system at alternate flow condition | Number |
| anti corrosion coating thickness | The total anti corrosion coating system thickness | Number |
| bottom plates corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| bottom section inside diameter | Is an inside diameter of an item that is the prime inside diameter in case the item has more than one inside diameter | Number |
| bottom section length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| channel corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| corrosion allowance | A thickness that is the upper limit of allowed corrosion of a metal structure | Number |
| design water depth | Specify the design water depth | Number |
| diameter | Intercept made by the circumference on a straight line through the centre of a circle | Number |
| downcomer corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| downcomer length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| downcomer outside diameter | Is an outside diameter of an item that is the prime outside diameter in case the item has more than one outside diameter | Number |
| downcomer wall thickness | Is a thickness according to a design | Number |
| drain nominal size | The nominal size of the drain | Number |
| drift diameter | The production tubing drift diameter | Number |
| drift diameter of landing string | The minimum drift diameter of the landing string to allow specification of appropriately-sized HXT crown plugs or VXT TH plugs | Number |
| economizer corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| economizer tube length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| economizer tube outside diameter | Is an outside diameter of an item that is the prime outside diameter in case the item has more than one outside diameter | Number |
| economizer wall thickness | Is a thickness according to a design | Number |
| elevation over mean sea level | Plant elevation over mean sea level | Number |
| estimated equivalent length | The virtual length of the functional or physical object that would produce the same pressure drop than the real object | Number |
| estimated length | The estimated length of the functional or physical object Can be used to estimate the weight of the object | Number |
| flue gas duct height | The maximum height of a functional or physical object above its base when installed | Number |
| flue gas ducting thickness | Is a thickness according to a design | Number |
| grade to first stage impeller centerline dimension | Specify the grade to the proposed pump first stage impeller centerline dimension | Number |
| grade to liquid minimum submergence level dimension | Specify the grade to pump process liquid minimum submergence level dimension | Number |
| grade to top of pump discharge connection dimension | Specify the grade to top of proposed pump discharge connection dimension | Number |
| head corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| head external corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| head internal corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| head wall thickness | Is a thickness according to a design | Number |
| header internal corrosion allowance | A thickness that is the upper limit of allowed corrosion of the inside of a header | Number |
| height | A distance from the bottom to the top of something standing upright | Number |
| impeller diameter | The size of the impeller in a rotating machinery | Number |
| inlet flange size | Is a diameter by which a quantitative diameter is referred to Typically a standardized value with defined tolerances | Number |
| insulation thickness | A thickness of an insulation layer | Number |
| intermediate section inside diameter | Is an inside diameter of an item that is the prime inside diameter in case the item has more than one inside diameter | Number |
| intermediate section length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| junction box cable entry size | The size of cable gland entries in main junction box | Number |
| length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| length tan tan | A straight linear distance which is the total length of the cylindrical section/part of a cylindrical vessel, ie including the cylindrical sections of the vessel heads | Number |
| low liquid level elevation | Specify the process liquid low level elevation | Number |
| lower limit diameter | The designed intercept made by the circumference on a straight line through the centre of a circle | Number |
| lower limit flow net positive suction head available | NPSHA that is available for a particular pumping system at lowest flow condition | Number |
| lower limit wall thickness | The minimum allowable thickness of metal that a physical object shall have in order to operate in a safe manner If the wall thickness varies with height, enter the thickness at the lowest point of the equipment (ie where the pressure is greatest) | Number |
| maximum allowable operating height | Specify the maximum allowable operating height | Number |
| maximum burial depth | Specify the maximum depth of cover as measured from the ground surface to the top of the pipe | Number |
| minimum burial depth | Specify the minimum depth of cover as measured from the ground surface to the top of the pipe | Number |
| minimum vertical access bore through tree and tubing hanger | The minimum vertical access bore diameter through the x-mas tree and tubing hanger | Number |
| mud drum inside diameter | Is an inside diameter of an item that is the prime inside diameter in case the item has more than one inside diameter | Number |
| mud drum length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| mud drum wall thickness | Is a thickness according to a design | Number |
| net positive suction head available | NPSH for a particular pumping system at a certain flow rate and temperature | Number |
| net positive suction head required | Minimum NPIP required by the pump to achieve the required performance with the specified fluid at any specified point, as determined by Vendor NPIP shall always include acceleration losses | Number |
| nominal diameter | A diameter which is an expected (theoretical/as designed) diameter | Number |
| nominal inlet diameter | Is a diameter by which a quantitative diameter is referred to Typically a standardized value with defined tolerances | Number |
| nominal inlet flange size | Is a diameter by which a quantitative diameter is referred to Typically a standardized value with defined tolerances | Number |
| nominal outlet diameter | Is a diameter by which a quantitative diameter is referred to Typically a standardized value with defined tolerances | Number |
| nominal outlet flange size | Is a diameter by which a quantitative diameter is referred to Typically a standardized value with defined tolerances | Number |
| nominal pipe diameter | The nominal diameter (ie not the actual diameter, but an approximate diameter as it may appear on a vendor datasheet) of the equipment at the upstream boundary of the section | Number |
| nominal size | Is a diameter by which a quantitative diameter is referred to Typically a standardized value with defined tolerances | Number |
| nominal wall thickness | Specify the nominal wall thickness of the equipment at the upstream boundary of the section | Number |
| normal flow net positive suction head available | NPSHA that is available for a particular pumping system at normal flow condition | Number |
| nozzle external corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| nozzle internal corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| outlet flange size | Is a diameter by which a quantitative diameter is referred to Typically a standardized value with defined tolerances | Number |
| outside diameter | A diameter that is across the outside cross section of a circular object | Number |
| particle size | Average solid particle size in fluid | Number |
| pedestal inside diameter | Is an inside diameter of a pedestal that is the prime inside diameter | Number |
| pedestal outside diameter | Is a diameter that is across the outside cross section of a pedestal | Number |
| pressure casing vent size | The nominal size of the casing vent | Number |
| pump length (grade to underside of pump inlet bell or strainer dimension) | Specify the proposed pump length (grade to underside of pump inlet bell or strainer dimension) below grade | Number |
| rated flow net positive suction head available | NPSHA that is available for a particular pumping system at rated flow condition | Number |
| roof plates corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| shell corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| shell external corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| shell inside diameter | Is an inside diameter of an item that is the prime inside diameter in case the item has more than one inside diameter | Number |
| shell internal corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| shell outside diameter | Is an outside diameter of an item that is the prime outside diameter in case the item has more than one outside diameter | Number |
| shell plates corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| shell wall thickness | Is a thickness according to a design | Number |
| spacer length | A distance that is the length of a spacer | Number |
| stack height | The maximum height of a functional or physical object above its base when installed | Number |
| stack inside diameter | Is an inside diameter of an item that is the prime inside diameter in case the item has more than one inside diameter | Number |
| stack length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| stack wall thickness | Is a thickness according to a design | Number |
| steam drum inside diameter | Is an inside diameter of an item that is the prime inside diameter in case the item has more than one inside diameter | Number |
| steam drum length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| steam drum shell wall thickness | Is a thickness according to a design | Number |
| steam section length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| steam section wall thickness | Is a thickness according to a design | Number |
| sump diameter | Specify the diameter of the sump in which the proposed pump will be installed | Number |
| sump floor elevation | Specify the sump floor elevation | Number |
| superheater box length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| superheater box wall thickness | Is a thickness according to a design | Number |
| superheater corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| superheater tube outside diameter | Is an outside diameter of an item that is the prime outside diameter in case the item has more than one outside diameter | Number |
| surface roughness | The average peak to valley distance for the small irregularities on a functional or physical objects internal surface | Number |
| thermal insulation coating thickness | The total thermal insulation coating system thickness | Number |
| top section inside diameter | Is an inside diameter of an item that is the prime inside diameter in case the item has more than one inside diameter | Number |
| top section length | Is a distance measured in the direction of the longest side of an item or in the direction of its main axis | Number |
| tube corrosion allowance | Is a thickness that is a bonus on a wall thickness to compensate for expected corrosion | Number |
| tube length | A distance that is the length of a tube | Number |
| tube outside diameter | Is an outside diameter of an item that is the prime outside diameter in case the item has more than one outside diameter | Number |
| tube wall thickness | Is a thickness according to a design | Number |
| tubing hanger pup joint / saver sub bore | The TH pup joint / saver sub bore | Number |
| tubing hanger pup joint / saver sub length | The TH pup joint / saver sub length | Number |
| tubing hanger pup joint / saver sub outer diameter | The TH pup joint / saver sub outer diameter | Number |
| upper limit design product fill height | The height of product which is the highest height of product at which a functional or physical object is designed for | Number |
| upper limit diameter | The upper limit intercept made by the circumference on a straight line through the centre of a circle | Number |
| upper limit flow net positive suction head available | NPSHA that is available for a particular pumping system at highest flow condition | Number |
| upper limit head at rated impeller | The head that is the highest that can be obtained for the rated impeller | Number |
| upper limit operating liquid height | Is a height of a liquid under operating conditions | Number |
| wall thickness | A thickness which is the thickness of the part of an object normally called wall: wall thickness of a pipe, thickness of a building wall, etc | Number |
| weight coating thickness | The total weight coating system thickness | Number |
| width | A straight linear distance describing one of three orthogonal extreme dimensions of a thing relative to a reference system: height, width, and length, which can be looked at as the sides of a box in the three dim space enclosing the thing exactly | Number |
