Thread Connection THDF Pipe Flange

Product Details

Threaded Flange

Threaded Flange has its inner bore surface designed as tubular thread,which matches with threaded pipe to achieve connection.Therefore,no welding is required.Compared with slip-on welding or welding neck flanges.it featured easier installation and more convenient maintenance. The flange can be applied in situations where welding is forbidden.When it comes to alloy steel flange,which has enough strength but poor welding performance.users can choose threaded flange as well.To avoid leakage,it is not recommended for pipeline involving dramatic temperature change and occasions with temperature lower than-45℃ or higher than 260℃.
Available Sizes
3/8"~12",DN10~DN300
Standards
GB/T9112-2000 GB/T9114-2000 GB/T9124-2000
SH/T3406-1996
HG/T20592-2009,HG/T20614-2009,HG/T20615-2009,HG/T20623-2009,HG/T20635-2009
ASME B 16.5-2009
EN1092-1-2007 EN1759-1-2004
DIN2566
BS1560-3.1-1989 BS4504-3.1-1989
AFNOR NF E29-200-1-2007
ISO7005-1-1992
JIS B2220-2004
Raw Materials
Carbon steel:A105
Alloy steel:A182F 1-F 2-F 5-F 9-F 10-F 91-F 92-F 122-F 911-F 11-F 12-F 21-F 22
Stainless steel:A182 304-304H-304L-304N-304LN 316-316H-316L-316LN 321-321H 347-347H
Low-temperature steel:A522 A707 Grade L 1-L 2-L 3-L 4-L 5-L 6-L 7-L 8
High-performance steel:A694 F 42-F 46-F 48-F 50-F 52-F 56-F 60-F 65-F 70F
Pressure Grade
American System:CLASS150 CLASS300 CLASS400 CLASS600 CLASS900 CLASS1500 CLASS2500
European System:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100.
Flange Facing
Flat Face(FF) Raised Face (RF)
Producing Process
Cutting of Raw Material-Die Forging-Machining
Application
The flange is widely used in many areas such as power generation plant, petroleum industry,natural gas system,chemical industry,shipbuilding industry,heating system,paper-making industry,metallurgy industry,etc.


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