The blind plate is mainly used to completely isolate the production medium to prevent production from being affected or even accidents caused by the shut-off valve being lax. The blind plate should be installed in the part that requires isolation, such as the equipment connection port, the front and rear of the shut-off valve, or between two flanges. It is often recommended to use the 8-shaped blind plate; plate (circular blind plate). Material Carbon steel ASTM A105, A350 LF1, LF2, LF3, LF6, CL1/CL2,; A694 F52, F60, F65, F70; A516 Gr. 60, 70; BS-EN 10222-2 P245GH, P280GH; EN10222-4 P355NH, P355QH; EN10273 P250GH, P265GH; DIN 17243 C22.8; VD-TUEV350/3 C21; GB/T 1591 Q345B, Q420B; NB/T 47008 16Mn,20#; BS 10250-2 S235JRG2; …
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