1 Scope
This standard specifies the type, dimension, technical requirements and designation of the slip-on-welding plate steel pipe flanges.
This standard is applicable to the slip-on-welding steel pipe flanges with nominal pressure of PN 2.5~PN 100.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
JB/T 74 Specification for Steel Pipe Flanges
JB/T 75 Steel Pipe Flanges - Types and Parameters
3 Types and Dimensions
3.1 Slip-on-welding plate steel pipe flanges are classified into Series 1 slip-on-welding plate steel pipe flanges and Series 2 slip-on-welding plate steel pipe flanges; thereof, Series 1 is preferred.
3.2 The type of sealing face and range of applicable nominal pressure and nominal dimension shall meet the requirements of Table 1.
Foreword I
1 Scope
2 Normative References
3 Types and Dimensions
4 Technical Requirements
5 Designation and Designation Examples
5.1 Designation
5.2 Designation Examples
Figure 1 Flat Face (FF) Slip-on-welding Plate Steel Pipe Flanges
Figure 2 Raised Face (RF) Slip-on-welding Plate Steel Pipe Flanges
Table 1 Type of Sealing Face and Range of Applicable Nominal Pressure and Nominal Dimension for Slip-on-welding Plate Steel Pipe Flanges
Table 2 PN 2.5 Slip-on-welding Plate Steel Pipe Flanges
Table 3 PN6 Slip-on-welding Plate Steel Pipe Flanges
Table 4 PN10 Slip-on-welding Plate Steel Pipe Flanges
Table 5 PN16 Slip-on-welding Plate Steel Pipe Flanges
Table 6 PN25 Slip-on-welding Plate Steel Pipe Flanges
Table 7 PN40 Slip-on-welding Plate Steel Pipe Flanges
Table 8 PN63 Slip-on-welding Plate Steel Pipe Flanges
Table 9 PN100 Slip-on-welding Plate Steel Pipe Flanges
