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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There shall be no leaks. 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. For the sheets, the maximum allowable thickness variations shall be in accordance to the ASTM A specifications.
C AWWA Standard for polyurethane coaings for the interior and exterior of steel water pipe and fittings. C American National Standart for Ductile-iron and gray-iron fittings, for water. Gobierno de la Eficiencia en la Calle.
The weld shall be reasonably uniform width and height for the entire length of the pipe. Any out-of-roundness shall be limited to a smooth oval that may be jacked back c200-97 a circular shape. 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.
Spiralco – Specifications – AWWA C
This is a summary of the AWWA standards and specifications. C American National Standart for Polyerthylene encasement for ductile-iron pipe c20-097. C AWWA Standard for Coal-tar protective coatings and linings for steel water pipelines-enamel and tape-hot-applied.
The procedures, the welding operators as well as all operators shall be qualified under Sec. For plates, the maximum allowable thickness variation shall be 0.
Each length of repaired pipe shall be tested hydrostatically in accordance with standard requirements. The pipe shall be substantially round.
The maximum radial offset tolerance on the plates is: 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.
MARKING A serial number or other identification shall aawwa painted in a conspicuous location on each section of pipe and each special section. In such cases, pipe ends shall conform to the description of detail drawings provided by the purchaser.
C American National Standart for Ductile-iron compact fitting, for water service. Yield strength, min Ksi Mpa. The test pressure shall be held for sufficient time to observe the weld seams. The production weld tests consists of: By agreement between the purchaser and the manufacturer, the welding can be done either by automatic or manual means. C American National Standart for C20-97 ductile-iron pipe with ductile-iron or gray-iron threaded flanges.
D AWWA Standard for automatically controlled, impressed-current cathodic protection for the interior of steel water-tanks. 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: C American National Standart for Rubber-gasket joints for ductile-iron pressure pipe and fittings.
C American National Standart for Ductile-iron pipe, centrifugally cast, for water or other liquids. 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.
C American National Standart for thickness desing of ductile-iron pipe. By agreement between the manufacturer and the purchaser, the ends of the pipe may be supplied with joint configurations and tolerances other than those described herein.
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 awda plates or sheets are ordered.
C AWWA Standard for Cold-applied tape coatings for the exterior of special sections, connections, and fittings for steel water pipelines. 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 The finished pipe shall be free from unacceptable defects.
The frequency of production weld tests: