| 摘要 |
A purge block comprised of latex and, mandrel dip molded in a continuous piece, with a housing bulb on one end of an elongated hollow tube capable of withstanding minimal inflation to fill the chamber in varying tube diameters, sealed at the end of the tube with a "Schrader" valve insertion, sealed with heat shrink tape, and capped with a hard rubber cap to prevent damage to metal tube. The valve and elongated tube or carriage serves as the conduit to inflate the bulbous end with argon or another inert gas. Upon inflation, the block serves to isolate small, purgable tube areas for tie in work and final welds, frequently at valves, and valves adjacent to curved tubing.
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