请问公斤与mpa与psig之间怎样换算，急，谢谢

psi 有听过吧,psig 就叫做(英制)蒸气压力,锅炉内[蒸气]的压力.蒸气归蒸气,空气归空气,空气中含有水气时,水分的重量是可以分离计算成(psig)的,但是我以为[psig]单独表示时,应该是指[锅炉内饱和水蒸汽的压力].
psi是 磅/平方英吋 (念做 每平方英吋xx磅)
如果是 Kg/cm2 换算成 psi,
1Kg/cm2 = 14.21psi
1psi = 0.454Kg/(2.54cm)2 = 0.07037kg/cm2 则倒数就是 14.21
~~~~~~~~
1大气压 = 760.00027 mHg
1mHg = 133.322 pa
1大气压 = 101324.75 pa

1kpa=>1000pa / 133.322pa X 13.6(水银比重) => 102.0087mH2O

PSID指的应该是[压力差][PSI为单位]
mpa应该写成 Mpa M是[百万],十的六次方.
http://www.hvacr.com.tw/tech/UNIT/PRESSURE.CFM
单位换算请看上址!

PSID, psid
Pounds per Square Inch Differential. Not just a unit, but a comment that the number represents a difference between two pressures. PSID gauges have two input connectors. PSIA is PSID relative to vacuum, PSIG is PSID relative to local atmospheric pressure, and PSIS is PSID relative to a sealed 14.7-psi pressur