A unit of pressure, in physics, that acts vertically on the surface of an object. The unit is Pascal (PA letter for short is "pa").

In China, we usually describe the pressure of gas as "kg" (not "Jin"). The unit is "kg · f / cm2". One kilogram of pressure is one kilogram of force acting on one square centimeter.

Pressure rating of valves

National standard PN10 PN16 PN25 PN40 pn64 PN100 pn160 PN250 pn320 ..

For example, PN16 means that the nominal pressure of the valve is 16KG, i.e. 1.6Mpa

American standard class 150Lb; class 150Lb; class 300lb; class 450lb; class 600Lb; class 800LB; class 900lb; class 1500Lb; class 2500lb

For example, class 150Lb refers to the class with pressure rating of us 150 lb

Din PN10 PN16 PN25 PN40 pn64 PN100 pn160 PN250 pn320 .

JIS or Jik 10K; JIS or Jik 20K

Common pressure unit

Mpa；kpa；pa；Kg（kgf/cm2）; LB; PSI; K;

Among them, kPa, also called kilopascal, is often used in the micro pressure regulating valve, such as the self operated micro pressure regulating valve product of VTON, which is famous in the United States. The pressure regulating range is as low as 0.5kp.

1Mpa=1000KP=1000 000pa

1Mpa=10kg

150Lb ≈ 2.5MPa = 25kg 300lb ≈ 5.0mpa = 50kg (6 times difference)

1MPa ≈ 145psi; 1000PSI ≈ 6.89mpa = 68kg (145 times difference)

10K=20kg 20K=40kg

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