| 摘要 |
<p>A thermoplastic pipe joining method and modular components for use therein providing a system of standardized parts affording flexibility, ease of assembly, and low cost replacement and repair, especially for use in assembling submersible underdrain systems to be installed in an activated carbon adsorber for the purpose of dispensing and/or collecting industrial wastewater or other liquid material to be treated by said activated carbon, comprising thermoplastic pipe pieces having on at least one end thereof a thermoplastic coupling ring portion (43,44) comprising a flange having one face flush with the pipe opening and the opposite face having a tapered cross-section and a thermoplastic, ring-shaped locking cap (47) in two equal halves (45,46) having an inside diameter at least as great as the outside diameter of two pipe pieces to be joined, and having a groove opening onto its aperture, said groove being of a size and shape to accommodate the two coupling ring portions of the pipe pieces when they are joined, said locking cap being provided with means for securing the two halves thereof together.</p> |
