The design standard of the globe valve is according to the requirements of GB/T12235 standard: the structural length is GB/T12221 standard, the flange standard: HG/T20592 standard, the wall thickness standard: GB/T12224: the pressure test standard: GB/T26480 standard; The nominal diameter includes DN15-DN50, and the nominal pressure includes 1.6MPa-2.5MPa-4.0MP;