Product Name: ASME B16.5 Long Weld Neck Flange
Type: Long Weld Neck (LWN) Flange
Standard: ASME B16.5
Material: ASTM A350 LF2 Class 1, Carbon Steel
Nominal Size: 3/4 Inch, DN20
Pressure Rating: Class 600 LB, PN100
Overall Length: 248 mm
Schedule: SCH 80
Facing: Raised Face (RF)
Source: https://www.landee.cn/asme-b16-5-long-weld-neck-flange-a350-lf2-cl1-3-4-in-cl600.html