Abstract: In this paper, according to the standard ASTM D2992-12 titled “glass fiber (reinforced thermosetting resin glass fiber) pipe and pipe fittings for hydrostatic design basis”, a method B was adopted to investigate the long-term hydrostatic performance of filament-wound-reinforced composite pipes. The basic principles for this test method were introduced and the obtained results were analyzed. Based on the analysis and evaluation, the composite pipes achieved a 50-year long-term hydrostatic pressure of 14.3 MPa.

Key words: glass fiber, composite pipe;plastic alloy;longterm hydrostatic pressure, pressure rat-ing