The Series A Wing Nut Test Plugs are designed and developed for testing for leaks and for sealing off sections of pipelines generally made of cast iron, steel, vitrified clay, concrete etc. These plugs come with a hollow stem which can be used as a fill or drain pipe. Turning the wing nut expands the rubber ring tightly against the inside of the pipe. Hand tightening is usually adequate in smaller sizes, but a wrench can be used on larger sizes to give a better seal.
LOW PRESSURE PLUG FOR WATER ONLY
Maximum test pressures are dependent upon the friction of the test plug rubber with the inside of the pipe.
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