Caulked bell and spigot joints

Rule 331. The requirements contained in 49 C.F.R.§192.753(a), which is adopted by reference in R 460.20606, are superseded by the following:#

(a)An operator shall seal a cast-iron, caulked bell and spigot joint subject to pressures of more than 10 psig with either of the following:#

(i)A mechanical leak clamp.#

(ii)A material or device that has all of the following characteristics:#

(A)Does not reduce the flexibility of the joint.#

(B)Permanently bonds, either chemically or mechanically, or both, with the bell and spigot metal surfaces or adjacent pipe metal surfaces.#

(C)Seals and bonds in a manner that meets the strength, environmental, and chemical compatibility requirements of 49 C.F.R.§192.53 and 49 C.F.R. §192.143, which are adopted by reference in R 460.20606.#

History: 1998-2000 AACS; 2019 AACS.#