ASTM A182 blind flanged is used to connect with two pipes. Pipe is fixed on a flange. Then put a gasket between flanges and using bolt to fasten together. Blind flange can be sorted into threaded blind flange and welding blind flange. Welding blind flange is used for high pressure large diameter pipe while threaded blind flange can be only used for low pressure small diameter pipe.
Materials
Stainless steel: ASTM A182, 1Cr18Ni9Ti, 0Cr18Ni9Ti
Alloy steel: ASTM A182, A182 F12, A182 F11, A335 P22
Standard: ANSI B16.5, 16.48, ASME B16.47
Parameter
Nominal pressure: Class 150-1500Lb
Nominal diameter: DN25-600mm
Flanging face: raised face (RF)
Dimensions
Flanging face |
ANSI B16.5 |
|||||
150LB |
300LB |
600LB |
900LB |
1500LB |
2500LB |
|
Raised face (RF) |
DN20-600 |
DN10-2000 |