ASTM-D8000:15(R2020) pdf free download – Standard Practice for Flow Conditioning of Natural Gas and Liquids.
5.3.1 The nomenclature used to specify a flow-conditioning device is the following (9 in. (23 cm) not included in the description):
5.3.2 The terms for a complete description are:
5.3.2.1 AA = Nominal Pipe Size (NPS)
(1) NPS does not refer to the pipe outside diameter up to NPS 12-in. (30.5-cm) pipe. For NPS 14-in. (35.5-cm) and larger pipe sizes, NPS corresponds to pipe outside diameter.
(2) In 90 % of applications. NPS will correspond with a published pipe schedule. In applications that exceed NPS 30 in. (76 cm), actual pipe inside diameters arc used more than schedules. This may he due to difilculty meeting pressure containment requirements with published pipe schedules in larger pipe sizes. In some instances jeven if smaller pipe sizes; NPS 16-in. (40.6 cm) and smaller], the pipe inside diameter may not correspond with a published pipe schedule. Flow conditioners can be manufactured to any pipe inside diameter.
(3) Standard weight pipe and Schedule 40 are equivalent in all sizes to NPS 10-in. (25.4-cm) pipe from NPS 12- to 24-in. (25.4- to 61-cm) standard weight pipe having a wall thickness of 0.375 in. (1 cm). Extra strong weight pipe and Schedule 80 are equivalent to NPS 8-in. (20-cm) pipe from NPS 8- to 24-in. (20- to 61-cm) extra strong pipe having a wall thickness of 0.5(X) in. (1 .3 ciii). Extra, extra strong pipe has no corresponding schedule number.
5.3.2.2 RB = Flange Type
(1) Flange ap/)Iuarion and Jloi’ conthiio,zer type—There are many different flange types used in the measurement industry. Flange type specification is required (see Table 2).
5.3.2.3 CC = Schedule or Actual Pipe Inside Diameter— See Table 3.
5.3.2.4 American National Standards Institute (ANSI) Ratlug = Pressure Class
(I)ANSI rating—Pressure class rating or PN (pressure nominal). This mtormation is required to size the flow conditioner to the pressure rated flange properly (see Table 4).
5.3.2.5 Material Type = Steel Type—The flow conditioner can he made of any type of material. The material of manufacture shall be stated on the purchase order. The most common flow conditioners are of stainless steel construction and these materials can be seen in Table 5.
5.3.2.6 Ring No. = only applies to ring-type joint (RTJ) applications (see Table 6).
6. Flow Conditioner Markings
6. 1 Markings—All plates will have the following markings etched or mechanically placed upon the outer flange edge:
6.1.1 ANSI rating;
6.1.2 Temperature range;
6.1.3 Manufacturer model identification;
6.1.4 Size, that is, NPS XX Sch. XX;
6. 1 .5 Material, that is, 304ss:
6.1.6 Country of manufacture:
6.1.7 Serial number and identification of plate by use of a combination of’ the purchase order number and number of the plate in the specific purchased lot in the following order.