7 Pipe construction Pipe— The structural wall of fiberglass pipe in 2 through 16-inch nominal pipe sizes shall be constructed of continuous glass fibers wound in a matrix of aromatic amine cured epoxy resin in a dual angle pattern that takes optimum advantage of the tensile strength of the filaments. Pipe produced by filament-winding shall have a smooth outer surface with an outside diametral tolerance not exceeding ±1.0%. The pipe shall incorporate an integral liner with a nominal thickness of 0.010 ± 0.005 inches for 2 through 6-inch nominal sizes and 0.020 ± 0.005 inches for 8 through 16-inch nominal sizes. The pipe shall be manufactured in accordance with ASTM Standard D2996 for filament-wound reinforced thermosetting resin pipe ( RTRP). When classified under ASTM Standard D2310, the pipe shall be Type 1, Grade 1, and Class F for 2 through 16-inch nominal pipe sizes. Pipe shall be provided in standard lengths up to 40 feet, and shall be available in 60ft lengths on special request to minimize the number of field joints for rapid installation. Pressure rating— Pipe in 2 through 16-inch sizes shall be rated for a minimum internal pressure of 150 psig at 210°F. In 2 through 10-inch sizes the pipe shall have a full vacuum capability at 80°F when installed above ground. Physical and mechanical requirements Values for physical and mechanical properties shall be no less than 95% of those shown tabulated above under TYPICAL PHYSICAL PROPERTIES and TYPICAL MECHANICAL PROPERTIES. Fittings construction Fittings in 8 through 16-inch nominal sizes shall be filament wound and incorporate a resin-rich liner of equal or greater thickness than the pipe liner and shall be constructed of the same glass and resin type for corrosion and abrasion resistance equal to that of the pipe. Fittings in 2 through 6-inch nominal sizes may be compression molded from glass and resins similar to those used in the pipe. Contact-molded, sprayed-up or hand laid-up fittings shall not be permitted. Pipe and fittings shall be joined using bell and spigot taper/taper adhesive-bonded joints or mechanical screw-on type joints with O-ring seals inside the bell for rapid installation. Workmanship The pipe and fittings shall be free from all defects, including delaminations, indentations, pinholes, foreign inclusions, bubbles and resin-starved areas which, due to their nature, degree or extent, detrimentally affect the strength and serviceability of the pipe or fittings. Pigments or dyes may be used in the resin as long as the product is sufficiently translucent to verify the structural integrity of the structural wall. The pipe and fittings shall be as uniform as commercially practicable in color, density and other physical properties. Testing Quality control testing— Samples of pipe and fittings shall be tested at random based on standard quality control practices to determine conformance of the materials to the following ASTM guidelines for testing fiberglass pipe products: ASTM D1599, D2105, D2925, D2992A or D2992B. Test samples may be hydrostatically tested by the manufacturer to 1.5 times the pressure rating for signs of leakage. Marking Each component shall be marked to show the following Manufacturer’s name and address Nominal pipe size Hydrostatic test pressure (if so ordered) Date and shift of manufacture (pipe only) Bondstrand®Guide Specification
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