1、 ANSI/ASAE S376.3 FEB2016 Design, Installation and Performance of Underground, Thermoplastic Irrigation Pipelines American Society of Agricultural and Biological Engineers ASABE is a professional and technical organization, of members worldwide, who are dedicated to advancement of engineering applic
2、able to agricultural, food, and biological systems. ASABE Standards are consensus documents developed and adopted by the American Society of Agricultural and Biological Engineers to meet standardization needs within the scope of the Society; principally agricultural field equipment, farmstead equipm
3、ent, structures, soil and water resource management, turf and landscape equipment, forest engineering, food and process engineering, electric power applications, plant and animal environment, and waste management. NOTE: ASABE Standards, Engineering Practices, and Data are informational and advisory
4、only. Their use by anyone engaged in industry or trade is entirely voluntary. The ASABE assumes no responsibility for results attributable to the application of ASABE Standards, Engineering Practices, and Data. Conformity does not ensure compliance with applicable ordinances, laws and regulations. P
5、rospective users are responsible for protecting themselves against liability for infringement of patents. ASABE Standards, Engineering Practices, and Data initially approved prior to the society name change in July of 2005 are designated as “ASAE“, regardless of the revision approval date. Newly dev
6、eloped Standards, Engineering Practices and Data approved after July of 2005 are designated as “ASABE“. Standards designated as “ANSI“ are American National Standards as are all ISO adoptions published by ASABE. Adoption as an American National Standard requires verification by ANSI that the require
7、ments for due process, consensus, and other criteria for approval have been met by ASABE. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more
8、than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. CAUTION NOTICE: ASABE and ANSI standards may be revised or withdrawn at any time. Additionally, procedures of ASABE requ
9、ire that action be taken periodically to reaffirm, revise, or withdraw each standard. Copyright American Society of Agricultural and Biological Engineers. All rights reserved. ASABE, 2950 Niles Road, St. Joseph, Ml 49085-9659, USA, phone 269-429-0300, fax 269-429-3852, hqasabe.org ANSI/ASABE S376.3
10、FEB2016 Copyright American Society of Agricultural and Biological Engineers 1 ANSI/ASAE S376.3 FEB2016 Revision approved February 2016 as an American National Standard Design, Installation and Performance of Underground, Thermoplastic Irrigation Pipelines Developed by the ASAE Irrigation Water Suppl
11、y and Conveyance Committee, approved by the Soil and Water Division Standards Committee; adopted by ASAE April 1975; reconfirmed December 1979, February 1981; revised April 1982; reconfirmed December 1986, December 1987; approved as an American National Standard June 1988; reconfirmed December 1988,
12、 December 1989, December 1990, December 1991; reaffirmed October 1992; reaffirmed by ASAE December 1992, December 1993, December 1994, December 1995, December 1996; revised January 1998; revision approved by ANSI January 1998; revised editorially December 2000; reaffirmed by ASAE February 2003, Febr
13、uary 2004; reaffirmed by ANSI March 2004; reaffirmed by ASABE January 2010; reaffirmed by ANSI March 2010; revised February 2016; revision approved by ANSI February 2016. Keywords: HDPE, Irrigation, Pipe, Plastic, PVC 1 Purpose and Scope 1.1 Purpose. Thermoplastic pipe is manufactured in several siz
14、e 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 use
15、d underground for irrigation and is intended to: 1.1.1 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 or to replace the judgment of personnel familiar with site
16、conditions or other controlling factors. 1.1.2 Provide information from referenced standards to promote uniformity in the design and installation of thermoplastic pipe in underground irrigation systems. 1.1.3 Establish minimum requirements for the design, installation and testing of pipelines which
17、are necessary for the satisfactory performance and safe operation of the irrigation system and to prevent damage to the system 1.2 Scope. 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
18、potable water systems. 1.2.1 Polyvinyl chloride (PVC) plastic pipe, standard dimension ratio - pressure rated (SDR-PR). This Standard applies to underground thermoplastic PVC (SDR-PR) pipelines 4 to 1500 mm (0.125 to 60 in.) nominal diameter with a pressure rating of 2170 kPa (315 psi) or less. NOTE
19、: 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. 1.2.2 Polyethylene (PE) plastic pipe, (SDR-PR). This standard applies to underground thermoplastic
20、PE pipelines 13 to 1651 mm (0.5 to 65 in.) nominal diameter with a pressure rating of 2308 kPa (335 psi) or less. ANSI/ASABE S376.3 FEB2016 Copyright American Society of Agricultural and Biological Engineers 2 2 Normative References The following referenced documents are indispensable for the applic
21、ation of this document. For dated references, only the edition cited applies unless noted. For undated references, the latest approved edition of the referenced document (including any amendments) applies. 2.1 General Standards ASTM D638, Standard Test Method for Tensile Properties of Plastics ASTM
22、D1598, Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure ASTM D1599, Standard Test Method for Resistance to Short-Time Hydraulic Pressure Failure of Plastic Pipe, Tubing, and Fittings ASTM D2122, Standard Test Method for Determining Dimensions of Thermoplastic
23、 Pipe and Fittings ASTM D2321, Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications ASTM D2412, Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading ASTM D2444, Standard Tes
24、t Method for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight) ASTM D2774, Standard Practice for Underground Installation of Thermoplastic Pressure Piping ASTM D2837, Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplas
25、tic Pipe Materials ASTM D3139, Standard Specification for Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals ASTM F477, Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe ASTM F1668, Standard Guide for Construction Procedures for Buried Plastic Pipe ISO 1
26、61-1:1996, Thermoplastics pipes for the conveyance of fluids Nominal outside diameters and nominal pressures Part 1: Metric series PPI TR-3 Policies and Procedures for Developing Recommended Hydrostatic Design Stresses for Thermoplastic Materials PPI TR-4 HDB/HDS/SDB/MRS Listed Materials 2.2 HDPE St
27、andards ASTM D1603, Standard Test Method for Carbon Black Content in Olefin Plastics ASTM D2609, Standard Specification for Plastic Insert Fittings for Polyethylene (PE) Plastic Pipe ASTM D3035, Standard Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Controlled Outside Diameter AS
28、TM D3261, Standard Specification for Butt Heat Fusion Polyethylene (PE) Plastic Fittings for Polyethylene (PE) Plastic Pipe and Tubing ASTM D3350, Standard Specification for Polyethylene Plastics Pipe and Fittings Materials ANSI/ASABE S376.3 FEB2016 Copyright American Society of Agricultural and Bio
29、logical Engineers 3 ASTM D4218 Standard Test Method for Determination of Carbon Black Content in Polyethylene Compounds by the Muffle Furnace Method ASTM F714, Standard Specification for Polyethylene (PE) Plastic Pipe (SDR-PR) Based on Outside Diameter ASTM F1055, Standard Specification for Electrof
30、usion Type Polyethylene Plastic Fittings for Outside Dimension Controlled Polyethylene and Crosslinked Polyethylene (PEX) Pipe and Tubing ASTM F2164 Standard Practice for Field Leak Testing of Polyethylene (PE) and Crosslinked Polyethylene (PEX) Pressure Piping Systems Using Hydrostatic Pressure AST
31、M F2620 Standard Practice for Heat Fusion Joining of Polyethylene Pipe and Fittings AWWA C 906, Polyethylene (PE) Pressure Pipe and Fittings, 4 in. (100 mm) Through 63 in. (1,600 mm), for Water Distribution and Transmission AWWA Manual M 55 PE Pipe Design and Installation PPI Handbook of Polyethylen
32、e Pipe, Second Edition, Irving, TX 2009 2.3 PVC Standards ASTM D1784, Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds ASTM D2152, Standard Test Method for Adequacy of Fusion of Extruded Poly (Vinyl Chloride) (PVC) Pipe and
33、 Molded Fittings by Acetone Immersion ASTM D2241, Standard Specification for Poly (Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series) ASTM D2466, Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40 ASTM D2467, Standard Specification for Poly (Vinyl Chloride)
34、 (PVC) Plastic Pipe Fittings, Schedule 80 ASTM D2564, Standard Specification for Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems ASTM D2672, Standard Specification for Joints for IPS PVC Pipe Using Solvent Cement AWWA C905, Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated
35、 Fittings, 14 in. thru 48 in. (350 mm thru 1,200 mm) for Water Transmission and Distribution AWWA C605, Underground Installation of Polyvinyl Chloride (PVC) Pressure Pipe and Fittings for Water ASTM F402, Standard Recommended Practice for Safe Handling of Solvent Cements, Primers, and Cleaners Used
36、for Joining Thermoplastic Pipe and Fittings 3 Definitions 3.1 design area: The specific land area in which pipelines are planned and located to serve as integral parts of an irrigation water distribution or conveyance system, designed to facilitate conservation, use and management of water and soil
37、resources, and which the supplier or designer and purchaser mutually understand to be irrigated. 3.2 irrigation system: All equipment required to convey water to or within the design area. 3.3 irrigation pipelines: Includes the underground, thermoplastic pipelines and appurtenances installed in an i
38、rrigation system. ANSI/ASABE S376.3 FEB2016 Copyright American Society of Agricultural and Biological Engineers 4 3.3.1 high pressure pipelines: This term applies to underground, thermoplastic pipelines that are closed to the atmosphere, and are subject to internal pressures, including surge pressur
39、es of 550 kPa (80 psi) or greater. 3.3.2 low pressure pipelines: This term applies to underground thermoplastic pipelines that are used in systems subject to pressures of less than 550 kPa (less than 80 psi. 3.4 outlets: Appurtenances required to deliver water from the pipeline to an individual spri
40、nkler or to a lateral of sprinklers, to surface pipe located on the ground, to distribution pipe or laterals containing surface or subsurface emitters or tricklers, to surface valves, or to open ditches. 3.5 hydrostatic design basis (HDB): The HDB is derived from ASTM D 2837, Standard Method for Obt
41、aining Hydrostatic Design Basis for Thermoplastic Pipe Materials, where constant hydrostatic stress loading is extrapolated for 100,000 hours and 50 years at 73.4F (23C). 3.6 hydrostatic design stress (HDS): The estimated maximum tensile stress the material is capable of withstanding continuously wi
42、th a high degree of certainty that failure of the pipe will not occur. This stress is circumferential when internal hydrostatic water pressure is applied. It is the HDB with a safety factor (SF). (That is HDS = HDB/SF). 3.7 pressure rating (PR): The estimated maximum pressure that water in the pipe
43、can exert continuously with a high degree of certainty that the pipe will not fail. 3.8 dimensional ratio (DR): The average specified diameter of a pipe or tubing divided by the minimum specified wall thickness. 3.8.1 standard dimension ratio (SDR): The ratio of the average outside pipe diameter to
44、the minimum wall thickness for outside diameter-controlled plastic pipe. Typical SDRs are: 6.0, 7.3, 9.0, 11.0, 13.5, 17, 21, 26, 32.5, 41.0, 51, and 64. 3.8.2 standard inside diameter ratio (SIDR): A specific ratio of the average inside pipe diameter to the average specified wall thickness (Di/t) f
45、or inside diameter-controlled plastic pipe. 3.9 relation between standard dimension ratio, hydrostatic design stress and pressure rating: The following expression, commonly known as the ISO equation (from ISO 161-1-1996), is used to relate standard dimension ratio, hydrostatic design stress, and pre
46、ssure rating: 3.9.1 For PVC OD based pipe: 2 S/P = R 1 or 2 S/P = (Do/t) 1 where: S is hydrostatic design stress (HDS), kPa (psi); where HDS = HDB / 2 P is pressure rating (PR), kPa (psi) Do is average outside diameter, mm (in.) t is minimum wall thickness, mm (in.) R is dimension ratio, DR or SDR (
47、equals Do/t) ANSI/ASABE S376.3 FEB2016 Copyright American Society of Agricultural and Biological Engineers 5 3.9.2 For HDPE OD based pipe: PR = HDB (design factor, Df) (FT) / (DR 1) where: HDB = hydrostatic design basis (1600 psi for HDPE pipe materials listed in tables included in this standard) Df
48、 = design factor = 0.50 for PE3408/3608 pipe materials = 0.63 for PE4710 pipe materials FT = service temperature design factor = 1.0 for service temperatures up to 80F DR = dimension ratio = outside diameter/minimum wall thickness 3.9.3 For ID based pipe: 2 S/P = R + 1 or 2 S/P = (Di /t) + 1 where R
49、 is dimension ratio, DR or SIDR (equals Di /t for ID based plastic pipe). 4 Pipeline Design Criteria 4.1 Working pressure 4.1.1 Working Pressure PVC. The PVC pipeline shall have a pressure rating (see Table 1) greater than the static or working pressure, plus surge pressure at any point in the system. If surge pressures are not known, pipe velocities should be maintained to 1.5 m/s (5 ft/s) or less and the working pressure shall not exceed 72% of the pressure rating for the particular pipe and SDR or DR used. Table 1 al
