Tubular goods are the thin-walled fixture drain and trap parts used beneath sinks and washbasins. Because plastic pipe is non-conducting, it cannot be used for electrical grounding. PVC pressure pipe should be used only for cold water outdoors. It is ideal for building lawn-watering and irrigation systems. PE pipe serves a similar purpose but is flexible and cannot be solvent welded.
PE is especially useful as deep-well pipe.
Riser tubes are the highly flexible, small-diameter tubes linking a water supply system and faucets, making the faucets easier to connect. Riser tubes often fit directly into an adapter on a fixture shutoff valve. Look for the ASTM designation on each pipe, tube and fitting that you buy, signifying that it meets ASTM standards. 1 - To join the solvent welding plastic pipe to its fittings, first cut the pipe and then deburr it with a knife. 3 - Next apply solvent cement sparingly to the fitting socket.