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What is the pressure equivalent to 900LB?

2009-03-27View Original

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What is the pressure in kilograms for 900LB?
Reply #22009-03-27
900LB is basically equivalent to 15.0 Mpa, or a pressure of 150 kilograms
Reply #32009-03-27
LB (lb) is the abbreviation for pound, the unit of weight in British and American systems. The British unit of weight, pound; plural form is pounds, pronounced pounds. 1 pound = 4.4482 newtons; 1 kilogram is approximately equal to 2.2046 pounds. 1 pound = 0.45359 kilograms, or 453.59 grams. In the past, a pound coin was indeed made from a gold ingot weighing one pound, but nowadays the ratio between the price of gold and its weight is subject to free fluctuations. 1 pound force per square inch (psi) = 6.895 kilopascals (kPa) = 0.0703 kilogram-force per square centimeter (kg/cm2) = 0.0689 bars = 0.068 atmospheres (atm)
Reply #42009-03-27
For 900LB, the pressure rating of WCB at room temperature (38 degrees) is 153.2 bar. This is presumably why it is said that 900LB is equivalent to 15 MPa. The pressure ratings vary depending on the material used; for example, the pressure rating of CF8 at room temperature is 148.9 bar, while that of WC6 is 155.1 bar. In all cases, these values are close to 150 bar. However, for exact figures, one must refer to B16.34
Reply #52009-03-27
Is kilopascal pressure equal to PN?
Reply #62009-03-27
The PN on a valve refers to the nominal pressure; PN1.6 means 1.6 Mpa, which is equivalent to 16 kilograms of pressure.
Reply #72009-03-27
900 lb is equivalent to 15 MPa, which is also 150 kilograms; 1 kilogram corresponds to 0.1 MPa
Reply #82009-03-28
900LB is basically equivalent to 15.0 Mpa, or a pressure of 150 kilograms
Reply #92009-03-28
Is there anyone who can do this calculation? Please provide detailed steps. Thank you
Reply #102009-03-28
When selling and using industrial valves, the term \"LB\" is often mentioned in reference to the valve’s pressure rating. The common unit used abroad is lbf/in2 (pounds per square inch), while in China the common unit is Mpa (megapascals). Based on this, valve pressure ratings are classified from low to high as LB 150, 300, 400, 600, 900, 1500, 2000, 2500, etc., which correspond to Mpa values of 2.0, 5.0, 6.3, 10.0, 15.0, 25.0, 33.7, 42.0 respectively. These represent corresponding pressure ranges; it is not necessary to convert between LB and Mpa units. This post was last edited by jluinn on 2009-3-28 18:44]
Reply #112009-03-29
Agree with the view on floor 10; what the original poster mentioned as 900LB refers to the pressure rating, not the unit conversion between pounds and kilograms.
Reply #122009-03-29
It should be noted that the reference temperatures for nominal pressures in lb and MPa are different: 425 degrees for the former and 120 degrees for the latter. Therefore, a simple unit conversion is not possible; it is necessary to refer to the material’s temperature and pressure rating table
Reply #132012-07-09
I’ve learned it! Thank you to the user on floor 10 for helping me understand the conversion between British and American units and those used in China!
Reply #142012-07-09
It’s roughly equivalent to 160 kilograms of pressure; in fact, when converted, it’s a little over 150 kilograms of pressure
Reply #152012-07-10
900Lb refers to the pressure rating; it corresponds to PN15.0MPa in GB standards, and to PN16.0MPa in HG and JB standards.
Reply #162012-07-11
Agree with the comment on floor 14; for details, refer to ANSI B16.34 – different temperatures correspond to different pressure ratings.

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