What's the flange cover BL20-100FM?
Nominal diameter 20 nominal pressure 100 kg (10MPa) concave flange cover, if in accordance with the HG20601 standard, the size of the external diameter of 130, the center of the hole Phi 90, bolt hole 4- Phi 18, thickness 20, sealing surface concave.
BL is built by 20 DN 100 is referred to as the flange pressure is the pressure of 100 kg PN10.0MPA FM is referred to as the sealing surface is concave and convex with
The flange cap BL20-100FM is: 20 is nominal diameter, 100bar is the pressure grade, and FM is the sealing surface form - concave surface
Nominal diameter 20 nominal pressure 100 kg (10MPa) concave flange cover, if in accordance with the HG20601 standard, the size of the external diameter of 130, the center of the hole Phi 90, bolt hole 4- Phi 18, thickness 20, sealing surface concave.PL: type flange plateBL: flange capSupplement (hubbed slip on plate PL, SO, WN, IF, whole neck butt welding socket welding, butt welding, TH SW thread ring loose welding-on collar loose PJ/SE, PJ/RJ, BL, BL flange lining flange (S))Flange cover (HG20601, HG20622, GB/T9123, JB/T86), also known as blind plate, its role is to close the pipeline or partition pipe, mainly used in the end of the pipe or as head. The sealing surface is provided with a plane, a projecting surface, a concave convex surface, a tongue groove surface and a ring connecting surface.
