Product Name: Weld Neck Flange with Jack Screw
Type: Weld Neck (WN) Flange
Standard: ASME B16.5
Material: ASTM A182 F304L
Size: 20 Inch
Class Rating: Class 150 LB
Wall Thickness: SCH 10S
Face Type: Raised Face (RF)
Special Requirement: with Jack Screw
Jack Screw Size: 3/4 Inch–10 UNC
Source: https://www.landee.cn/wn-flange-with-jack-screw-astm-a182-f304l-20-in-cl150-rf.html