16 NYCRR 255.191
255.191 Design pressure of plastic fittings.
(a)The design pressure of polyvinyl chloride (PVC) Schedules-40 and 80 thermoplastic fittings must be obtained from the following table:#
PVC Type II Class Location Size inches | Schedule | 1 | 2 & 3 | 4 | 1 | 2 & 3 | 4 ½ | 40 | 100 | 100 | 100 | 100 | 100 | 100 80 | 100 | 100 | 100 | 100 | 100 | 100 ¾ | 40 | 100 | 100 | 96 | 100 | 100 | 100 80 | 100 | 100 | 100 | 100 | 100 | 100 1 | 40 | 100 | 100 | 90 | 90 | 100 | 100 80 | 100 | 100 | 100 | 100 | 100 | 100 80 | 100 | 100 | 100 | 100 | 100 | 100 1¼ | 40 | 100 | 92 | 74 | 100 | 100 | 100 80 | 100 | 100 | 100 | 100 | 100 | 100 1½ | 40 | 100 | 83 | 86 | 100 | 100 | 100 80 | 100 | 100 | 94 | 100 | 100 | 100 2 | 40 | 89 | 69 | 55 | 100 | 100 | 100 80 | 100 | 100 | 81 | 100 | 100 | 100 2½ | 40 | 99 | 76 | 61 | 100 | 100 | 100 80 | 100 | 100 | 85 | 100 | 100 | 100 3 | 40 | 84 | 66 | 53 | 100 | 100 | 100 80 | 100 | 94 | 75 | 100 | 100 | 100 3½ | 40 | 77 | 60 | 48 | 100 | 100 | 96 80 | 100 | 86 | 69 | 100 | 100 | 100 4 | 40 | 71 | 56 | 44 | 100 | 100 | 89 80 | 100 | 81 | 65 | 100 | 100 | 100 5 | 40 | 82 | 49 | 39 | 100 | 97 | 78 80 | 93 | 72 | 58 | 100 | 100 | 100 6 | 40 | 56 | 44 | 35 | 100 | 88 | 71 80 | 89 | 70 | 56 | 100 | 100 | 100#
These pressure ratings are the same value as the design pressure of the corresponding pipe size and schedule in the same class location, as determined by the formula given in section 255.121 of this Part.#