阀门口径(DN)中英制式对照常用单位换算

阀门口径(DN)中英制式对照常用单位换算

阀门、泵常用基本参数对照表

阀门口径(DN)中英制式对照

序号公制(mm)英制(Inch)

1151/2''

2203/4''

3251''

4321-1/4''

5401-1/2''

6502''

7652-1/2''

8803''

91004''

101255''

111506''

122008''

1325010''

1430012''

常用材料牌号对照

GG-25 / 0.6025 : 铸铁

GGG-40.3 / 0.7043 : 球墨铸铁

GS-C25N / 1.0619 :铸钢

1.1181: 碳钢

C22.8 : 锻钢

1.4408 / 1.4122.05 / 1.4021.05 / 1.4571 : 不锈钢

GS17CrMo55 : 铬钼合金钢常用单位换算压力单位1Bar = 1.01972 kgf/cm2 = 100 kN/m2 = 0.1MPa = 14.5psi1 kgf/cm2 = 0.98067 bar = 14.2233 lbf/ in2 = 14.22psi = 10m扬程长度单位1inch = 25.4mm1ft = 12inch = 0.3048m容积单位1m3 = 1000 L = 264.17 U.S. gal = 219.97 U.K. gal功率单位1 HP = 0.7457 KW = 76.07 kg-f-m/s重量单位1 lb = 454 g = 4.4482 N = 0.22481 lbs1 kg = 2.20462 lbs = 9.80665 N密度单位1 g/cm3 = 0.036127 lb/in31 kg/m3 = 0.0624281 lb/ft3力矩单位1 N.m = 0.10197 kg f/m = =0.73756 lb f/ft1 kgf/m = 9.80665 N.m = 7.23301 lb f/ft温度单位100 ℃ = 212°F (沸点)0 ℃ = 32°F(冰点)90 ℃ = 194°F–10 ℃ = 14°F80 ℃ = 176°F–17.8 ℃ = 0°F70 ℃ = 158°F60 ℃ = 140°F℃=(°F-32)/1.850 ℃ = 122°F

40 ℃ = 104°F

30 ℃ = 86°F

20 ℃ = 68°F

10 ℃ = 50°F

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