The document specifies the types and dimensions of slip-on-welding plate steel pipe flanges with flat face or raised face with a nominal pressure of PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, and PN4.0 MPa.
The standard applies to slip-on-welding plate steel pipe flanges with flat face or raised face with the nominal pressure ranging between PN0.25 ~ PN4.0 MPa.
