ASTM-D5421 › Historical Revision Information
Standard Specification for Contact Molded "Fiberglass" (Glass-Fiber-Reinforced Thermosetting Resin) Flanges

ASTM-D5421 - 2005 R10 EDITION - SUPERSEDED
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This specification covers the requirements for materials, workmanship, performance, and dimensions of circular contact-molded "fiberglass" (glass fiber reinforced thermosetting resin) flanges for use in pipe systems and tank nozzles. This specification does not address flange design or gasket selection. Flanges may be produced as integral flanges (Type A) or flange-on-pipe (Type B). They may be made of either epoxy resin (Grade 1), polyester resin (Grade 2), phenolic resin (Grade 3), vinylester resin (Grade 4), or furan resin (Grade 5). Flanges are also grouped into classes according to pressure and thrust capability as Class I (hoop and axial pressure) and Class II (hoop pressure only). Specimens shall undergo tests for which performance requirements must be met for sealing, short-term rupture strength, and maximum bolt torque.

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Scope

1.1 This specification covers circular contact-molded fiberglass reinforced-thermosetting-resin flanges for use in pipe systems and tank nozzles. Included are requirements for materials, workmanship, performance, and dimensions.

1.2 Flanges (see Fig. 1) may be produced as integral flanges, Type A, or flange-on-pipe, Type B.

1.3 This specification is based on flange performance and does not cover design.

Keywords

butt weld; contact molded; flange on pipe; furan; integral flange; polyester; vinylester; Butt-welded materials/applications; Contact molded pipe/flanges--specifications; Fiberglass pipe--specifications; Flanges/fittings/valves/parts (plastic)(specifications); Furan; Integral flange; Polyester plastics--specifications; Reinforced thermosetting-resin pipe (RTRP)--specifications; Vinyl ester plastics; ICS Number Code 23.040.60 (Flanges, couplings and joints)

To find similar documents by ASTM Volume:

08.03 (Plastics (III): D5117 - latest; Reinforced Plastic Piping Systems and Chemical Equipment; Plastic Building Products)

To find similar documents by classification:

23.040.60 (Flanges, couplings and joints)

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Document Number

ASTM-D5421-05(2010)

Revision Level

2005 R10 EDITION

Status

Superseded

Modification Type

Reapproval

Publication Date

Dec. 1, 2010

Document Type

Specification

Page Count

5 pages

Committee Number

D20.23