(a) All water pipes and fittings shall be of a pattern and character of a superior quality of iron, tough and even grain, free from cracks, sand holes or defects of any nature.
(b) All cast-iron water pipes and fittings shall be given a cement mortar lining at the point of manufacture. The lining shall conform to the American Standard Specifications, A 21.4-1952, and all subsequent amendments.
(c) All cast-iron pipe and fittings shall conform to the following specifications of the United States of American Standards Institute
A 21.6 American Standard Specifications for Cast Iron Pipe Centrifugally Cast in Metal Molds, for Water or Other Liquids.
A 21.8 American Standard Specifications for Cast Iron Pipe Centrifugally Cast in Sand-Lined Molds, for Water or Other Liquids.
A 21.10 American Standard Specifications for Short-Body Cast Iron Fittings.
A 21.11 American Standard Specifications for a Mechanical Joint for Cast Iron Pressure Pipe and Fittings.
Fittings over twelve inches in size which are not covered by the above specifications shall conform to the specifications and dimensions shown in the Handbook of Cast Iron Pipe, published by the Cast Iron Pipe Research Association.
(d) All pipe and fittings shall be Class 52 and designed for a working pressure of not less than 150 psi.
(e) Cast-iron pipe and fittings shall have mechanical-type joints similar to the U. S. Joint, the American Cast Iron Pipe Company’s Doublex Simplex Joint, the Clow National “C.N.” Joints or their equal. Gaskets shall be of rubber with a duck-tip or other equally effective protection against uneven distortion of the gasket. Cadmium-plated bolts shall be used having a minimum tensile strength of 50,000 psi.
(f) In lieu of mechanical joints as specified above, the contractor shall be permitted to furnish joints of a type commonly known as “Bell-Tite,” “Tite-on,” “Fast-Tite” or an approved equal. Pipe shall be furnished with a groove cast into the inside diameter of the bell for receiving and securing a rubber gasket ring. The pipe shall be joined by inserting the spigot end into the “Bell-Tite” opening and sealed by using a solid rubber gasket ring especially designed for this purpose. The joint must withstand 150 psi working pressure. The entire joint shall be made in accordance with the recommendations of the pipe manufacturer. Mixing the two types of approved joints on any one project will not be permitted. The contractor must use one type of joint throughout the entire project. The only exception is that all hydrants shall have mechanical- type joints.
(g) Wherever changes in line and grade of the main, as shown on the drawings, are not standard fitting deflections, the contractor will be permitted to use an approved combination of standard fittings and small deflections in the adjoining lengths of pipe (not to exceed a maximum of one-half inch joint openings).
(h) Pipe to be installed with air cocks or drains shall be cast with bosses thereon, drilled and tapered for two-inch connections and plugged in the shop with cast-iron threaded plugs before shipment.
(i) Whenever it becomes necessary to cut a length of pipe, it shall be done in a manner to leave a smooth end at right angles to the axis of the pipe. No payment will be made for the unused portion of the pipe.
(j) All water pipe and special castings, after thorough cleaning, shall be coated outside with a suitable asphaltum or other approved impervious preparation applied at a temperature of 300 degrees Fahrenheit. Pipe shall be handled in such a manner that a minimum amount of damage to the coating will result. All cast-iron pipe or fittings, the coating of which has been damaged in shipping or handling, shall have the damaged portion well cleaned and painted with three field coats of Inertol 50 or Bitumastic 50, or their equal, before placing in the work. The contractor shall also coat all exposed parts of nuts and bolts, as above specified, after the pipe has been laid and before backfilling has been placed. All field coatings shall be furnished by the contractor and no extra payment will be received for this work. Pipe shall not be dropped or bumped against pipe or other objects on the ground when unloading.
(k) Lugged pipe shall be used where “tied distances” are shown on the alignment drawing. High strength cast-iron tee head bolts, hex nuts and glands shall be furnished and used to make these connections. The bolts will be cadmium-plated and have a tensile strength of 50,000 psi.
(l) Closure pieces shall be accurately measured and cut in the field and installed using solid-type, long pattern sleeves as shown or as required.
(m) All cast-iron pipe and fittings shall be suitably marked to denote the manufacturer, class, date, weight and other elements of identification.
(n) Extra fittings shall include furnishing and installing any fittings that are not shown on the plans. The Engineer shall have the authority to approve of and order extra fittings to be incorporated into the work, and the contractor, when so ordered, shall furnish and install these fittings. Extra fittings shall comply in all respects to these specifications. No special castings shall be accepted the weight of which is less than Class “D,” standard weight, by more than ten percent. The contractor will be paid the contract price for all standard fittings. All castings, upon which a price is not fixed by contract, shall be paid for at the contract price per pound. The weight of extra fittings shall be construed to mean the weight of the body casting only, and such weight may be determined by actually weighing the fittings or it may be taken from the table of weights as shown in the Handbook of Cast Iron Pipe, published by the Cast Iron Pipe Research Association. The contract price for special castings shall be additional to the measurement of pipe line, which measurement shall be continuous and inclusive of all special castings on such line.
(o) All flanged pipe shall have American Standard Class 125 flanges and shall be faced and drilled to American 1928 Standard drilling, unless special drilling is called for. Where tap or stud bolts are required, the flanges shall also be tapped.
(p) No material shall be used in the work until it has been inspected and approved on the site of the work. No broken, cracked, imperfectly coated or lined, or otherwise unsatisfactory pipe shall be used in the work. All pipe and fittings rejected by the Inspector shall be promptly removed from the site and not again offered for use. When requested by the Engineer, any or all materials entering into the construction shall be tested by a reputable local testing laboratory at the contractor’s expense. Such inspection or test shall not relieve the contractor of any of his or her obligations in this respect, and any defective material or workmanship which may have passed the Engineer or inspector shall be at all times liable to rejection when discovered until the final completion and adjustment of the contract covering the work.
(q) The manufacturer of any of the materials covered in these specifications shall furnish a sworn statement that the inspections and tests required by the appropriate American Standard Specifications, as listed in subsection (c) hereof, have been made and performed and that the material is in compliance with the same.
(Ord. 352. Passed 10-22-62.)