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ASTM F3508-21a
Standard Guide for In-Situ Pipeline Renovation As Dual-Wall Composite Pipeline by Push/Pull Installation of Compressed-Fit Shape-Memory-Polymer Tubular (SMPT) (Includes all amendments and changes 12/7/2021).
NORMA vydaná dňa 1.11.2021
Informácie o norme:
Označenie normy: ASTM F3508-21a
Dátum vydania normy: 1.11.2021
Kód tovaru: NS-1044014
Počet strán: 9
Približná hmotnosť: 27 g (0.06 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM F3508-21a :
Keywords:
amorphous, composite pipe structure, hostpipe, PE4710, pipeline renewal, polyethylene pipe, semi-crystalline, shape memory polymer, thermo-plastic pipe, trenchless technology,, ICS Number Code 23.040.20 (Plastics pipes)
Doplňujúce informácie
| 1. Scope |
|
1.1?This guide describes the specification and re-construction of in-situ pipelines and conduits 2 in. to 63 in. (50 mm to 1600 mm) diameter) by the pulled-in-place installation, into an existing conduit, of circular, radially reduced, Shape-Memory-Polymer Tubular (SMPT) that after installation, re-expands (by memory) to press against the ID of the host pipe, thus coupling the interior pipe, by friction fit, as reinforcement to the host pipe. The added SMPT pipe wall restores leak tightness and adds its strength to the host pipe (Dual-Wall Composite-Pipe). It becomes a continuous compressed-fit dual-wall pipeline. Depending upon the SMPT compound used, the re-constructed pipelines or conduits are suitable for pressure and nonpressure pipeline applications such as process piping, raw and treated water transmission, water pipe systems, forced-mains, industrial and oil-patch gathering and transmission pipelines, sanitary sewers, storm sewers, and culverts. Note 1: This standard guide covers circular SMPT tubulars
which are radially reduced by mechanical means at the time of
installation. This guide does not address liners that at the time
of manufacture are deformed (folded) into U-shape, C-shape,
H-shape, or other such configurations. This guide refers to
dual-wall meaning two layers of pipe co-joined in the field, which
is different from dual-wall factory-made co-extruded pipe or
corrugated pipe. This guide does not provide a complete design
basis covering the many variables required for design and
construction of this field fabricated product; the advice of
professional contractors and/or registered professional engineers
may be incorporated as an adjunct to this guide.
1.2?The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Note 2:?There are no ISO standards covering the primary
subject matter of this guide.
1.3?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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