Seal theory of GPI high-pressure pipe fittings (E)

Abstract

The constituent material of the FRP tube consists of a composite material with a tensile strength of up to 70 MPa allowable elongation of 12% and an interfacial shear strength of about 7 MPa with reinforced glass fiber, and a tensile strength of about 50% Vol orthogonal lamination compared to circumferential and axial glass fiber 2:1 and a tensile strength of about 4500/2250 MPa with a permissible elongation of 2%. Here, we will explain the GPI standard for the lamination design that is 80% effective of unidirectional reinforcing fiber, the primer design of the binding matrix, and the basic design standard of the corrosion-resistant tube that obtains a pipe application limit of 100 MPa.