Lined flanged steel pipes and flanged steel or cast iron fittings rated for pressures of (PN 10), 25 bar (PN 25) and 40 bar (PN 40)
法兰钢管和带衬里的法兰钢或铸铁配件-PN 10、PN 25和PN 40
2002-06-01
DIN 2873
PN 10 and PN 25 flanged enamelled steel pipes and fittings
法兰管件和法兰钢衬玻璃管-PN 10和PN 25
2002-06-01
ISA 75.08.02-2003(R2017)
Face-to-Face Dimensions for Flanged and Flangeless Control Valves (Classes 150, 300, and 600, and PN 10, PN 16, PN 25, PN 40, PN 63 and PN 100)
法兰和无法兰控制阀的面对面尺寸（150、300和600级 以及PN 10、PN 16、PN 25、PN 40、PN 63和PN 100）