ASME B16.5-2003 pdf download
ASME B16.5-2003 pdf download.Pipe Flanges and Flanged Fittings.
Interpretation: 4-1 Subject: Hub Diameter Date Issued: March 13, 1998 File: B16-97-011 Question: According to ASME B16.5-1996, does the diameter of hub dimension “X” as shown in Table 9, Fig. 9, correspond to the theoretical intersection of the angles line that represents the outside of the hub with the line that represents the back of the flange? Reply: Yes. However, note this is a dimension without a tolerance. Interpretation: 4-2 Subject: Tolerance Date Issued: March 24, 1998 File: B16-98-003 Question: Does ASME B16.5-1996 have required tolerances for a lapped, slip-on, or socket- welding flange for the overall length through hub? Reply: No. Interpretation: 4-3 Subject: Blind Flange Material Date Issued: March 24, 1998 File: B16-98-004 Question (1): May blind flanges covered by ASME B16.5-1996 be produced from plate? Reply (1): Yes. Question (2): May blind flanges produced from plate be marked in accordance with ASME B16.5-1996? Reply (2): Yes, provided that they meet all the requirements of ASME B16.5-1996. Question (3): Does ASME B16.5-1996 have criteria for the selection of materials? Reply (3): No. See para. 5.1.1.
Interpretation: 4-4 Subject: Implementation of the Standard, Flange Face Finish Date Issued: July 21, 1998 File: B16-097-015 Question (1): Is there a mandatory date for the implementation of ASME B16.5-1996? Reply (1): No. Implementation may be required by reference in a code, specification, sales contract, or public law. Question (2): May a flange not meeting the flange facing finish requirements of ASME B16.5- 1996 but meeting those of an earlier edition be supplied as being in accordance with the 1996 edition? Reply(2): Yes,provided thatthe flange face finishis supplied byarrangementwiththe purchaser. (See para. 6.4.4.) Question (3): According to ASME B16.5-1996, para. 6.4.4.3, may a flange with less than 45 grooves per inch or more than 55 grooves per inch meet the flange facing finish requirements as long as the resultant surface finish has a 125 to 250 ?in. average roughness? Reply (3): Yes. Interpretation: 4-5 Subject: Welding Neck Flanges Date Issued: June 18, 1999 File: B16-99-004 Question (1): Does ASME B16.5-1996 cover welding neck flanges that have the overall length through hub dimension y greater than the specified values (e.g., long weld neck)? Reply (1): No. Question (2): Does para. 6.7.4 of ASME B16.5-1996 allow the conformance designation “B16” to be applied to long weld neck flanges having overall length through hub dimensions greater than specified values? Reply (2): No. This paragraph applies to only end preparations. Interpretation: 4-6 Subject: Blind Flange Material Date Issued: October 15, 2001 File: B16-98-013 Question (1): Does ASME B16.5-1996 allow blind flange made from a plate material listed in Table 1A to be designated as a forging material in Table lA? Reply (1): No. Question (2): Does ASME B16.5-1996 permit blind flanges to be of a plate material as listed in Table IA for all pressure classes covered in ASME B16.5-1996 (150, 300, 400, 600, 900, 1500, and 2500)? Reply (2): Yes.
Interpretation: 4-7 Subject: Materials Conformance Date Issued: January 31, 2001 File: B16-98-017 Question: In accordance with ASME B16.5-1996, may a flange made from a material other than that ofa material specification listed in Table lA be identified as being manufactured in accordance with ASME B16.5? Reply: No. Interpretation: 4-8 Subject: Material Conformance Date Issued: January 31, 2001 File: B16-99-03 Question: May a flange meeting all of the relevant dimensional requirements of ASME B16.5- 1996 that is integrally forged or cast to another product be marked as in para. 4.1.1 to indicate conformance to the B16.5 Standard? Reply: No. Interpretation: 4-9 Subject: Dual Markings Date Issued: January 31, 2001 File: B16-99-12 Question: In accordance with ASME B16.5-1996, para. 4.14, may flanges NPS 1 ⁄ 2 through NPS 3 1 ⁄ 2 meeting all of the requirements for Class 600 be marked to show conformance with both Class 400 and Class 600? Reply: Yes. Interpretation: 4-10 Subject: Welding End Preparation for Welding Neck Flanges Date Issued: January 31, 2001 File: B16-99-14 Question: In ASME B16.5-1996, para. 6.7.1, the referenced figures are for attachment of flanges to pipe with wall thickness 0.19 in. and larger. May weld preparations for pipe wall thickness less than 0.19 in. be used in accordance with para. 6.7.4? Reply: Yes.
