公制与英制换算表（适用于阀门）Metric Equivalent Charts
公称
通径
Size 英寸In. 1/81/43/81/23/411 1/41 1/222 1/233 1/2456810121416毫米DN4810152025324050658090100125150200250300350400英寸In. 18202426283032343642485460647280848896毫米DN 4505006006507007508008509001050120013501500160018002000210022002400符号Symbol被乘数Multiply 乘数By 积To Obtain符号Symbol 长度
Length In.英寸Inches2.54公分CentimetersCm.Ft.英尺Feet30.48公分CentimetersCm.Mm.毫米Millimeters0.03937英寸InchesIn.Cm.公分Centimeters0.3937英寸InchesIn.m.米(公尺)Meters3.2808英尺FeetFt.质量
(重量)
Mass Oz.盎司Ounces28.35克GramsG.Lb.磅Pound0.4536公斤KilogramsKg.G.克Grams0.03527盎司OuncesOz.Kg.公斤Kilograms2.205磅PoundLb.符号Symbol被乘数Multiply 计算公式Expression计算结果To Obtain符号Symbol 温度
Temperature oF华氏Fahrenheit(oF - 32) x 5 ÷ 9摄氏CelsiusoCoC摄氏CelsiusoC x 9 ÷ 5 + 32华氏FahrenheitoF符号Symbol被乘数Multiply 乘数By 积To Obtain符号Symbol 面积
Area In.2平方英寸Square Inches6.45平方公分Square CentimetersCm.2Ft.2平方英尺Square Feet0.0929平方米Square MetersM.2Cm.2平方公分Square Centimeters0.155平方英寸Square InchesIn.2体积
(容积)
Volume Fl. Oz.流体盎司Fluid Ounces29.5625毫升MillilitersMl.Qt.夸脱Quart0.946公升LitersL.Gal.加仑Gallons3.785公升LitersL.Ft.3立方英尺Cubic Feet0.0283立方米Cubic MetersM.3Ml.毫升Milliliters0.0338流体盎司Fluid OuncesFl. Oz.L.公升Liters1.0571夸脱QuartQts.L.公升Liters0.2642加仑GallonsGal.M.3立方米Cubic Meters35.34立方英尺Cubic FeetFt.3In.3立方英寸Cubic Inches5.787 x 10- 4立方英尺Cubic FeetFt.3Ft.3立方英尺Cubic Feet1728立方英寸Cubic InchesIn.3Ft.3立方英尺Cubic Feet7.48052美制加仑Gallons (US Lig)Gal.压力
Pressure PSI磅/平方英寸
Pounds Per Sq. In.0.069Bar无符号
(no symbol)PSI磅/平方英寸
Pounds Per Sq. In.6.89千帕
KilopascalsKpaPSI磅/平方英寸
Pounds Per Sq. In.0.07公斤/平方公分
Kilogram Per Sq. CentimeterKg/Cm.2Lb./Ft.2磅/平方英尺
Pounds Per Sq. Ft.4.88公斤/平方米
Kilogram Per Sq. MeterKg/M.2Kpa千帕
Kilopascals0.145磅/平方英寸
Pounds Per Sq. In.PSIKg/Cm.2公斤/平方公分
Kilogram Per Sq. Centimeter14.22磅/平方英寸
Pounds Per Sq. In.PSI无符号
(no symbol)Bar14.5磅/平方英寸
Pounds Per Sq. In.PSI气压Atmospheres29.92英寸汞柱（零摄氏度）
Inches of Mercury (at 0 oC)气压Atmospheres14.7磅/平方英寸
Pounds Per Sq. In.英尺水柱
Feet of Water0.4335磅/平方英寸
Pounds Per Sq. In.英寸汞柱
Inches of Mercury0.4912磅/平方英寸
Pounds Per Sq. In.磅/平方英寸
Pounds Per Sq. In.2.307英尺水柱
Feet of Water磅/平方英寸
Pounds Per Sq. In.2.036英寸汞柱
Inches of Mercury压力等级Class和公称压力对照表ASME磅级
ASME Class 150300400600800900150025004500公称压力
MPa0.6 MPa
1.0 MPa
1.6 MPa
2.0 MPa2.5 MPa
4.0 MPa
5.0 MPa 6.4 MPa10.0 MPa-15.0 MPa25.0 MPa42.0 MPa76.0MPa公称压力
PNPN6
PN10
PN16
PN20 PN25
PN40
PN50 PN6.4PN100-PN150PN250PN420PN760阀门公称压力系列 MPa (bar)0.05(0.5)0.1(1.0)0.25(2.5)0.4(4.0)0.6(6.0)0.8(8.0)1.0(10.0)1.6(16.0)2.0(20.0)2.5(25.0)4.0(40.0)5.0(50.0)6.3(63.3)10.0(100.0)15.0(150.0)16.0(160.0)20.0(200.0)25.0(250.0)28.0(280.0)32.0(320.0)42.0(420.0)50.0(500.0)63.0(630.0)80.0(800.0)100.0(1000.0)125.0(1250.0)160.0(1600.0)200.0(2000.0)250.0(2500.0)335.0(3350.0)符号Symbol被乘数Multiply 乘数By 积To Obtain符号Symbol 流量
Flow 立方英尺/分
Cubic Feet/Min.62.43磅（水）/分
Pounds of Water/Min.立方英尺/秒
Cubic Feet/Sec.448.831加仑/分
Gallons/Min. 立方米/小时
m3/hr4.403美制加仑/分
US GPM功率
Power 马力Horsepower33,000英尺磅/分Ft.-Lb./Min.马力Horsepower550英尺磅/秒Ft.-Lb./Sec.马力Horsepower745.7瓦Watts英尺磅/秒Ft.-Lb./Sec.4.6263英国热量单位/小时BTU/Hr千瓦Kilowatts1.341马力Horsepower能量
Energy 英国热量单位BTU778.3英
