The pressure compare between American Standard and Chinese standard

　　The pressure difference between American standard and Chinese standard. ASNI B16.5 standard the pressure normally called class 150, class 300, class 600, class 900 etc. while in Chinese old edition HG standard the pressure is called PN0.6, PN1.6, PN2.0,PN4.0 etc. But in the newest edition HG PN16 is the same PN1.6.

　　The relationship of pressure between American standard and Chinese standard. Class 150lb=2.0 Mpa. Class 300lb=5.0 Mpa. Class 600lb=11.0 Mpa. In Chinese standard the pressure The new standard HG PN16 is equal to PN1.6 Mpa the old standard. PN20 =PN2.0 Mpa. And PN20=150lb. PN50=Class 300lb

　　The relationship of size between American standard and Chinese standard. The Chinese size have type A and type B. The Chinese home abroad usually use TYPE B a little more than type A. While the Chinese Type A the size is the same as American international standard.

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