AWWA B Sodium Polyphosphate, Glassy (Sodium Hexametaphosphate). AWWA B Sodium Tripolyphosphate (Includes addendum Ba). Sign In · View Account▹ · Home; AWWA C Preview AWWA C October Steel Water Pipe – 6 in. ( mm) and. SPIRALCO is a company specialized in the production of spiral-weld steel tubes and pipes.
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C American National Standart for thickness desing of ductile-iron pipe. C AWWA Standard for Heat-shrinkable cross-linked polyolefin coatings for the exterior of special sections, connections, and fittings for steel water pipelines. All xwwa, longitudinal, and girth seams used in the manufacture of the pipe shall be full-penetration welded butt joints.
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The finished pipe shall be free from unacceptable defects. The weld shall be reasonably uniform width and height for the entire length of the pipe. A serial number or other identification shall be painted in a conspicuous location on each section of pipe and each special section.
C American National Standart for Ductile-iron awda fitting, for water service. MARKING A serial number or other identification shall be painted in a conspicuous location on each section of pipe and each special section. The out-of-roundness of pipe ends shall be consistent with the diameter and wall thickness. There shall be at least one set of weld-test specimens taken of each size, grade, and wall thickness from work c200-97 by each production machine and each operator at a minimum of every ft.
C American National Standart for Ductile-iron pipe, centrifugally cast, for water or other liquids. The maximum radial offset tolerance on the plates is: Yield strength, min Ksi Mpa.
AWWA standard for steel water pipe 6 in. ( mm) and larger – Catalog – UW-Madison Libraries
Ends to be fitted with flanges shall be grinded longitudinal and spiral weldsat ground flush for a sufficient distance to allow proper installation of the flange. By agreement between the purchaser and the manufacturer, the welding can be done either by automatic or manual means. The procedures, the welding operators as well as all operators shall be qualified under Sec. Any out-of-roundness shall be limited to a smooth oval that may be jacked back to a circular shape.
This is a summary of the AWWA standards and specifications.
For the sheets, the maximum allowable thickness variations shall be in accordance to the ASTM A specifications. D AWWA Standard for flexible-membrane-lining and floating-cover materils for potable-water storage. By agreement between the manufacturer and the purchaser, the ends of awea pipe may be supplied with joint configurations and tolerances other than those described herein.
Spiralco – Specifications – AWWA C
It shall include a certified welding inspector AWS QC1 to verify that welders and welding procedures are qualified, procedures are being followed with limitation of testing, and quality-assurance functions are being implemented.
C American National Standart for Ductile-iron and gray-iron fittings, for water. For further details and information, please refer to these standards and specifications. C American National Standart for Flanged ductile-iron pipe with ductile-iron or gray-iron threaded flanges. C AWWA Standard for polyurethane coaings for the interior and exterior of steel water pipe and fittings.
Each length of repaired pipe shall be tested hydrostatically in accordance with standard requirements.
Unless specified by the purchaser, the wall thickness and weight tolerances for welded pipe shall be governed by the requirements of the specifications to which the plates or sheets are ordered.
F AWWA Standard for matched die-molded, fiberglass-reinforced plastc weir plates, scum baffles, and mounting brackets. In such cases, pipe ends shall conform to the description of detail drawings provided by the purchaser.
C AWWA Standard f200-97 Cold-applied tape coatings for the exterior of special sections, connections, and fittings for steel water pipelines.
The production weld tests consists of: If the pipe is to be manufactured to meet the requirements of one or more of the ASTM specifications, the grades of pipe shall be: The test pressure shall be held for sufficient time to observe the weld seams.
C American National Standart for Rubber-gasket joints for ductile-iron pressure pipe and fittings. Each length of pipe shall be tested by the manufacturer to a hydrostatic pressure not less than that determined by the following formula: C AWWA Standard for Coal-tar protective coatings and linings for steel water pipelines-enamel and tape-hot-applied. When the pipe is to be fabricated to meet the standard requirements; the plates, the sheets, or the coils shall be selected in accordance to the following physical properties and specifications.
By agreement between the purchaser and the manufacturer, when the diameter and the wall thickness of the pipe are such that the capacity of the testing equipment is exceeded by these requirements, the test pressures may be reduced or other non destructive test methods may be used.
Tensile strength ,min Ksi Mpa. There shall be no leaks.
D AWWA Standard for automatically controlled, impressed-current cathodic protection for the interior of steel water-tanks. Defects in seamless pipe or in the parent metal of welded pipe will be considered unacceptable when the depth of the defect is greater than C American C2000-97 Standart for Protective fusion-bonded epoxy coatings for the interior and exterior surfaces awwx ductile-iron and gray-iron fittings for water supply service.
C American National Standart for Polyerthylene encasement for ductile-iron pipe systems. All work performed and material furnished under this standard may be inspected by the purchaser, but such inspection shall not relieve the manufacturer of responsibility to furnish material and perform work in accordance with this standard. For plates, d200-97 maximum c20-97 thickness variation shall be 0.
The frequency of production weld tests: The manufacturer shall maintain a quality-assurance program to ensure that minimum standards are met. The pipe shall be substantially round. C AWWA Standard for Cold-applied petrolatum tape and petrolatum wax tape coatings for the exterior of special sections, connections, and fittings foe buried steel water pipelines.