Reading the enquiry — line review

What a line lists for a person, how steam and density are handled, and how conversions take a density.

5 rules, in register order, from R81 to R109; numbers do not run in sequence. Back to the index.

R81 — A line lists only what stands between it and a quotation

The four groups

Its open items are in four groups, in this order. Differs from the enquiry holds a deviation from the family the customer asked for, and a stated value the product has no option for, with the customer’s wording, from the line or a shared requirement.

A stated value the product filled itself, with its nearest option, its default or a rule, or as Custom, is not an open item: its row in the datasheet says what the customer wrote and that the product does not offer it, and the quotation’s notes name it.

Check these values holds a deviation whose reason rests on a value the customer did not give, such as a conductivity from the fluid library, to be checked before quoting; a value the check flagged; a value whose unit cannot be converted; a range or number with a unit kept as words, with Convert to turn them into figures, whether or not the words hold any; a value that cannot be saved; a corrosion warning, worded on the condition that the fluid is right where it is only a guess; a caution on the product; a family a reviewer picked that has no size for the line; and a process value with nowhere to go that holds the line (R72), under the customer’s heading with what was stated, or what the enquiry’s sources disagree over, sources that disagree over the same values being one item.

Not listed there, as each is said elsewhere: the fluid’s state and its nature, which the review’s header shows (a mixed state, which it cannot show, is listed); a process value whose every figure a field of that quantity holds; a fluid name on a line with a fluid; and sources that differ only in case or a trailing -ed or -d.

Each stays under Also stated for this line.

Choose holds a menu the product leaves open with two or more options, or none; an end connection kept against the material of the line’s pipe; a guessed fluid, which a person uses as the line’s fluid or changes; and the product where the suggestion leaves it open, as a pick between the families that fit, only those a general name on the line fits where it names some.

Ask the customer holds an input the product needs that the line does not state, such as the flow, the line size or a level’s span, and on a gas line its temperature and pressure; and a steam line whose stated temperature lies below saturation at its stated pressure (R125); and a fluid that is missing, or not in the library with its density or viscosity blank, each worded as the question the customer is asked; wording the library does not hold is asked its concentration on a liquid line and, on a gas or steam line, the pressure and temperature the line does not state: a figure on the line, from a requirement the enquiry states for several lines, or worked out from the line’s other figures counts as stated, as does a temperature given as a word for ambient such as “Amb”; an assumed one does not.

A guessed fluid is asked only once the line is confirmed with it unsettled: “Which fluid is “Caustic Lye”?

We read it as Caustic Soda (50%).” On a line awaiting review, an input given in words that hold figures, or only a word for ambient that nothing is assumed over, is converted under Check these values, not asked; one given in words with no figure, such as “to be advised”, is still asked; a confirmed line still asks for it. Only what Ask the customer lists is sent by Raise query.

What is listed, and what is not

A field has one item: where it would sit in two groups, it stays in the first of differs, ask, choose and check, and reads the other’s sentence after its own, less any value the kept item names already: a value quoted as Custom is said to be once, with the Custom option’s code.

An assumed value is not asked where the assumption counts for the product, such as ambient conditions on a liquid line (R16, R17): it shows in the datasheet and prints on the quotation as assumed. A required value FlowOS could not assume is asked.

A process value the enquiry left blank, such as ******, -, NA or TBD, states nothing: it is one line under the groups, Left blank in the enquiry, and not counted. A value whose passage reads the same as it is shown stays quiet (R82).

Keeping an item, and confirming the line

A person may Keep an item that only asks for a check, which removes it until the review is opened again. A confirmed line lists no item but the questions only the customer can answer.

The groups stop a person confirming the line only as R75 does, while its fluid, product or size is missing; Raise query still asks the customer for them.

R82 — A value whose passage reads the same as it is shown quietly

Where the passage a marked value was read from holds every figure, word and unit of the value as the customer wrote it, or holds all but the unit and the line’s own row heads the figures’ column with that unit, as a table’s CONDUCTIVITY (µS/cm) does, or states it in a cell of its own headed Unit, Engg. Unit or UOM, the units compared as they are written for display, the check’s mark is not shown: the passage sits beneath the value as where it was read from, it is not counted as needing attention, and confirming does not list it.

A value matched to a catalogue option, or to yes or no, is compared by the wording it was matched from. Where the passage reads differently, the mark stays, with a sentence naming which figures, unit and wording the passage holds and which it lacks, and the value’s heading counts it as flagged.

Where nothing decides a menu but the product offers just one option for the line, that option is taken and marked Condition, “Only option offered”. It counts as the menu’s value from then on: a menu that copies its material from it, or is asked only for some of its options, follows it as it would a default.

A menu that copies from a menu still open waits for that one instead. A menu the product offers no option for stays open, saying no option fits and to ask engineering.

R84 — A steam line is read as saturated, and one stating neither pressure nor temperature is asked its pressure

Ambient conditions are never assumed for steam (R17). Steam is taken as saturated: its temperature rises with its pressure. A steam line that states only an operating temperature is given the operating pressure of saturated steam at that temperature, to 0.01 bar g, and one that states only a pressure is given the temperature of saturated steam at it, to 0.1 °C. Each is read from the steam table, is shown as Calculated, is used to size the line and to check it, and is not asked of the customer. A steam line that states neither still asks for its pressure. An IBR type is never asked of a steam line: the vortex flowmeter’s IBR type is Non-IBR Certified unless the enquiry mentions IBR, boiler or the Indian Boiler Regulations, which offers the IBR vortex flowmeter instead (R28).

Both figures are read from the steam sizing table’s columns (2 to 20 bar abs), interpolated between them, and shown as Calculated: 10.54 kg/cm²(g), which is 10.34 bar g or 11.35 bar abs, gives 185.3 °C from the 10 and 12 bar abs columns. Outside those columns the steam table formula (IAPWS-IF97) gives the figure, up to 100 bar abs, shown as Assumed and still not asked. A temperature row worded as saturation (“saturated steam temperature at operating pressure”, “saturation temperature”, “saturated”) is filled the same way, and the customer’s words stay as the row’s source. A line that names condensate, or whose temperature would give a pressure below 0 bar g, is given none, and neither is a line whose other quantity already holds a minimum, maximum or range. Each blank minimum, maximum and design temperature is the saturation temperature at the minimum, maximum and design pressure beside it, which R65 and R68 give from the operating pressure: 10.54 kg/cm²(g) gives 171.6, 196.4 and 208.4 °C. A line that states only a minimum and maximum pressure gets its operating temperature the same way, at the operating pressure R65 assumes between them. It reads Calculated at a stated pressure and Assumed at an assumed one, or past the table’s columns. A figure the customer states, and one a person saved in review, is never replaced by the steam table (R69). An IBR type a family does not offer marks it not offered (R78).

R125 — A steam temperature more than 5 °C below saturation at the stated pressure is asked of the customer

When a steam line states both an operating temperature and an operating pressure, and the temperature is more than 5 °C below that of saturated steam at the pressure, the pair cannot both be right: steam at that pressure is not that cold. The line asks the customer to confirm the temperature and pressure, under Ask the customer and in Raise query, with the figures it read: “The enquiry states 120 °C at 10 bar g, but saturated steam at 10 bar g is 183.9 °C.”

Saturation at the pressure is read from the same steam sizing table as the fill above. Only figures the enquiry states, or a person saved in review, are compared; a temperature or pressure filled from the steam table is not. A temperature above saturation is superheated steam, which is legitimate, is sized as superheated and is not asked. A temperature between 0.5 and 5 °C below saturation is not asked: the line is sized as saturated steam and carries a caution. A pressure above 100 bar abs is not compared.

R109 — A conversion, reading an enquiry or saving a flow in review, takes the density the line states, else the one its specific gravity gives, else the library’s

When FlowOS gathers an enquiry, converting a flow between mass and volume, or a viscosity between cSt and cP, takes the first of these the line holds: a density it states, else one the enquiry states for every line; a specific gravity it states with no unit, else one the enquiry states for every line, times water at 998 kg/m³; the library’s density for a liquid it matched with certainty, or, for a gas mass flow, the library’s normal density of a gas it matched with certainty.

A flow a person saves in review takes its density the same way. A specific gravity is read against water on a line that is not gas or steam, since a gas’s is against air, and a figure of 20 or more is not one.

Reading an enquiry ignores a specific gravity of 20 or more; a review save reads it as a density in kg/m³, with the caution a density written with no unit gets from 20 to under 300.

On a gas or steam line a specific gravity under 20 written with no unit is not a density, and a figure in kg/m³ in its row is one, though a review save does not convert with one under 20 kg/m³.

On a line whose gas or steam phase is only assumed from the fluid’s name, a review save reads a specific gravity under 20 against water but does not convert with it.

Reading an enquiry, a specific gravity written with its unit, such as 1.5 SG, is converted by the units service against water at 1,000 kg/m³ and counts as a stated density; a review save does not read that unit.

A figure under 20 written in kg/m³ on a line that is not gas or steam is a specific gravity in the wrong unit (R24) and is never used to convert. With none of these, a figure that needs a density is kept as stated, unconverted.

The converted figure records the density it took and, from a specific gravity, the water it was read against.