| 摘要 |
A kit for forming a valve service box (10). The kit includes a plastic service valve housing (24) and a cover box assembly (22). The cover box assembly includes a plastic cover housing (32). Each of the housings (24 and 32) is provided with a cylindrical smooth wall bore (24.21 or 32.21) which may closely receive one end of a length of polyvinyl chloride pipe (26) of an appropriate uniform diameter. The housings (24 and 32) can be bonded by a conventional solvent welding process to the piece of plastic pipe (26) to form the valve service box, the plastic pipe (26) having been cut in the field to be of a correct length.
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