ASABE S376.2: Design, Installation and Performance of Underground, Thermoplastic Irrigation Pipelines
DOD Adopted ANSI Approved Approved
This Standard applies to underground, thermoplastic pipelines used in the conveyance of irrigation water to the point of distribution and may or may not apply to potable water systems.
Polyvinyl chloride (PVC) plastic pipe, standard dimension ratio - pressure rated (SDR-PR). This Standard applies to underground thermoplastic PVC (SDR-PR) pipelines 21 to 914 mm (0.5 to 36 in.) nominal diameter with a pressure rating of 2170 kPa (315 psi) or less.
NOTE – Nominal pipe size in millimeters is the actual outside pipe diameter to the nearest millimeter for OD controlled pipe and the actual inside diameter to the nearest millimeter for ID controlled pipe.
Chlorinated poly(vinyl chloride) (CPVC) plastic pipe (SDR-PR). This Standard applies to underground thermoplastic CPVC (SDR-PR) pipelines 21 to 394 mm (0.5 to 12 in.) nominal diameter with a pressure rating of 2170 kPa (315 psi) or less.
Chlorinated poly(vinyl chloride) (CPVC) plastic pipe (SDR-PR), schedule 40 or 80. This Standard applies to underground thermoplastic CPVC (schedule 40 or 80) pipelines 21 to 394 mm (0.5 to 12 in.) nominal diameter with pressures ratings determined in accordance with ASTM F441, schedules 40 and 80.
Polyethylene (PE) plastic pipe, (SDR-PR). This standard applies to underground thermoplastic PE pipelines 21 to 1600 mm (0.5 to 63 in.) nominal diameter with a pressure rating of 1750 kPa (254 psi) or less.
Purpose. Thermoplastic pipe is manufactured in several size classifications from different materials of various grades, types and formulations involving many different specifications. It is used for applications other than irrigation where certain requirements often apply to pipe used for a specific purpose. This Standard pertains to thermoplastic pipe used underground for irrigation and is intended to:
Provide minimum guidelines for engineers and others in planning, designing and specifying thermoplastic pipe commonly used for irrigation. It is not intended as a complete specification nor to replace the judgment of personnel familiar with site conditions or other controlling factors.
Consolidate applicable reference information and technical data in readily available form.
Establish uniform standards for materials used in the manufacture of thermoplastic irrigation pipe and to promote uniformity in classifying, pressure rating, testing and marking the pipe.
Establish minimum requirements for the design, installation and testing of pipelines which are necessary for the satisfactory performance and safe operation of the irrigation system and to prevent damage to the system.
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