PVC drainage connection approval memo, Apr 1985

NYC 9/11 Public Portal Document

This specification designates general Determine the impact resistance of the Pipe shall be designed to pass all tests requirements for unplasticized polyvinyl pipe in accordance with ASTM D 2444, described here at 73'’F (±3°F). chloride (PVC) plastic (spiral wound) using the 30 lb. (15 kg.) Tup B and flat gravity sewer pipe with integral wall bell plate holder B. Ten specimens shall be and spigot joints for the conveyance of tested. The specimens should be The pipe stiffness shall equal or exceed domestic sewage and storm water. oriented so that one of the ribs receives 10 psi or 46 psi when tested in accordance the strike essentially centered on the tup with ASTM 0 2412. Test three specimens, face. Failure in the test specimens shall minimum one diameter long, and All pipe and fittings shall be manufactured be any shattering or any crack or split determine the average pipe stiffness. and tested in accordance with ASTM F extending through the main wall of the .794 specification for “Poly (Vinyl pipe that was created by the impact and Note: Pipe may be restrained in flat plate Chloride) (PVC) Large Diameter Ribbed • that can be seen by the naked eye. Nine test to prevent twisting in the test Gravity Sewer Pipe and Fittings Based on out of ten specimens passing constitute apparatus. Controlled Inside Diameter;’ an acceptable product. The impact strength shall not be less than 220 ft. lbs. Joint tightness The pipe and fittings shall be made of PVC Two sections of pipe shall be assembled plastic having a minimum cell Note: Shorter sections, not less than 12 in accordance with the manufacturer's classification of 12454C or 13364C as inches in length, may be tested to recommendation. Joint shall be tested in accommodate the impact testing accordance with ASTM D 3212, “Joints defined in ASTM D1784. The pipe shall machine since this will be a more severe for Drain and Sewer Plastic-Pipes Using be colored green for in-ground identification as sewer/drain pipe. impact resistance test, - Flexible Elastomeric Seals." ' ■ ,

, Pipe Fittings Flattening 1 ’ ■ ' ; . ■ All pipe shall be either Series 10 or Series All fittings and accessories shall be as Flatten three specimens of pipe, each a 46, depending on the height of cover, soil manufactured and (urnished by the pipe minimum of 6 inches long, between class ana percent of Procior density in the supplier or approved equal and have bell parallel plates in a suitable press until ' haunching area. Provisions must be and/or spigot configurations compatible the distance between the plates is 40% made for contraction and expansion at with that of the pipe. of the outside diameter of the pipe. The each joint with a rubber ring. The bell shall rate of loading shall be uniform and such consist of an integral wall section. The All fittings are fabricated fittings. that the compression is completed within solid cross section rubber ring shall be Fabricated fittings with solvent cemented 2 to 5 minutes. The specimen shall pass factory assembled in either the bell or components shall be made in if no splitting, cracking, or breaking is spigot Sizes and dimensions shall be as accordance with ASTM D 2855 and observed under normal light with the - shown in this specification. Standard taking cc^nizance of ASTM F 402. unaided eye. Small tears initiated at the laying lengths shall be 13 ft. ±1 inch. At cut end of the rib shall not constitute manufacturer’s option, random lengths of failure. ' I not more than 15% of total footage may be shipped in lieu of standard lengths.. , Dimensions . • Dimensions shall comply with those in the table below. j Minimum waH thickness (inches) Integral bell gasketed joint: The joint Tolerance on shall be designed so that when Pipe size Average ID average ID Series 46 Series 10 assembled, the gasket (which is (inches) (inches) (inches) (46 psi) (10 psi) attached to either the bell or spigot) will 18......... . 17.65 ±.055 .130 .070 be compressed radially on the pipe 21 20.75 ±,060 .160 .085 spigot or in the bell to form a watertight seal in accordance with ASTM D 3212. 24...... 23.65 ±.070 .180 ..105' "

The above sizes, dimensions and tolerances for Series 10 and 46 are in inches to The joint shall be designed to avoid correspond respectively to Series 10 and 46 per latest Uni-Bell Plastic Pipe Association displacement of the gasket when Specification UNI-B-9 and ASTM F 794. '.... . . installed in accordance with the manufacturer’s recommendation. Inside diameter: Determine the average may be used if proper care is taken to The assembly of joints shall be in Inside diameter using an internal align it at right angles to the pipe axis. accordance with the manufacturer's micrometer or telescoping gauge recommendations. accurate to ±0.001 inch. Take sufficient , Wall thickness: Measure the wall readings, a minimum of 4, to ensure that "thickness of the waterway in the gaps the maximum and minimum have been " between ribs in accordance with Section determined. Calculate the average .{4 of ASTM D 2122. Make sufficient ■diameter as the arithmetic mean of the -readings, a minimum of 8, to ensure that diameters measured. As an alternate the minimum thickness has been method, an ID type circumferential tape determined.

NYC-WTC_000165050