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Hydrostatic Test Pressures - Flanges

ASME B16.5    

 
Material Group
Number		 Shell Test Pressures by Class
All Pressures Are in Pounds Per Square Inch Gage
150 300 600
psi bar psi bar psi bar
 
1.1 450 30 1125 77 2225 154
1.2 450 30 1125 78 2250 156
1.4 375 25 950 64 1875 128
1.5 400 28 1050   2100 144
1.7 450 30 1125 78 2250 144
1.9 450 30 1125 78 2250 156
1.10 450 30 1125 78 2250 156
1.13 450 30 1125 78 2250 156
1.14 450 30 1125 78 2250 156
2.1 425 29 1100 75 2175 149
2.2 452 29 1100 75 2175 149
2.3 350 24 900 63 1800 125
2.4 425 29 1100 75 2175 149
2.5 425 29 1100 75 2175 149
2.6 400 27 1025 70 2025 93
2.7 400 27 1025 70 2025 93
 
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