压力等级Class和公称压力对照表磅级Class公称压力MPa1500.6MPa1.0MPa1.6MPa2.0MPa公称压力PNPN6PN10PN16PN20
美标150LB对应的公称压力等级为2.0MPa，300LB对应的公称压力等级为5.0MPa
3002.5MPa4.0MPa5.0MPa
400
600
900
1500
2500
6.4MPa
10.0MPa
15.0MPa
25.0MPa
42.0MPa
PN25PN40PN50PN64PN100PN150PN250PN420
阀门公称压力系列MPa(bar)0.05(0.5)1.0(10.0)6.3(63.3)28.0(280.0)100.0(1000.0)0.1(1.0)1.6(16.0)10.0(100.0)32.0(320.0)125.0(1250.0)0.25(2.5)2.0(20.0)15.0(150.0)42.0(420.0)160.0(1600.0)0.4(4.0)2.5(25.0)16.0(160.0)50.0(500.0)200.0(2000.0)0.6(6.0)4.0(40.0)20.0(200.0)63.0(630.0)250.0(2500.0)0.8(8.0)5.0(50.0)25.0(250.0)80.0(800.0)335.0(3350.0)
公制与英制换算表（适用于阀门）MetricEquivalentCharts英寸In.1/8通径毫米DN4Size英寸In.5毫米DN125英寸In.毫米DN32800
1/46615034850
3/810820036900
1/21510250421050
3/42012300481200
12514350541350
1(3/4)3216400601500
1(1/2)4018450641600
25020500721800
2(1/2)6524600802000
38026650842100
3(1/2)9028700882200
410030750962400
标签：磅级,公称,对照表
