Welded Flange Plate Connection

Welded Neck Flange
Welded Neck Flange
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Min Order Qty: 50 Tons m.t.
Supply Capability: 5000 Tons per Year m.t./month
Weld Neck Plate Flange
Weld Neck Plate Flange
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Min Order Qty: 1 Ton m.t.
Supply Capability: 800 Tons per Month m.t./month
Butterfly Valve OEM Flange Connection 1 Inch Double Flange
Butterfly Valve OEM Flange Connection 1 Inch Double Flange
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Min Order Qty: 10 set
Supply Capability: 10000 set/month
masoneilan control valves flange connection mini size
masoneilan control valves flange connection mini size
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Min Order Qty: 111 PCS
Supply Capability: 1000 PCS/month
American Standard Pipe Ends Weld Flange Connections
American Standard Pipe Ends Weld Flange Connections
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Min Order Qty: 25-35 m.t.
Supply Capability: -
PE Butt Welded Flange Socket Flange Pipe Fittings for Pipeline System
PE Butt Welded Flange Socket Flange Pipe Fittings for Pipeline System
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Min Order Qty: 100 m
Supply Capability: 10000 m/month
Pipe Crimpling Connection Crimping Steel Sleeve with Flange with Clamp
Pipe Crimpling Connection Crimping Steel Sleeve with Flange with Clamp
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Min Order Qty: 100 m
Supply Capability: 10000 m/month
Forged Steel Globe Valve  RF/RTJ flange, butt welded
Forged Steel Globe Valve RF/RTJ flange, butt welded
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Min Order Qty: 1000 set
Supply Capability: 3000 set/month
Flange DN50
Flange DN50
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Min Order Qty: 1 Ton m.t.
Supply Capability: 3500 Tons per Month m.t./month
Forged Flange
Forged Flange
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Min Order Qty: 10 Pieces pc
Supply Capability: 1000 Pieces per Week pc/month
Swivel Flange
Swivel Flange
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Min Order Qty: 10 PIECES pc
Supply Capability: 500 TONS pc/month
Orifice Flange
Orifice Flange
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Min Order Qty: 1000 KGS pc
Supply Capability: 600 Tons Per Month pc/month
Flange Pipe
Flange Pipe
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Min Order Qty: 1 Metric Ton pc
Supply Capability: 300000 Metric Tons per Year pc/month
Flange adaptor
Flange adaptor
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Min Order Qty: -
Supply Capability: -
bhghThreaded Flange
bhghThreaded Flange
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Min Order Qty: -
Supply Capability: 1000 /month
FLANGE REDUCER
FLANGE REDUCER
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Min Order Qty: -
Supply Capability: -
Ansi Stainless Steel Flange
Ansi Stainless Steel Flange
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Min Order Qty: 100 Pieces pc
Supply Capability: 100000 Pieces per Month pc/month
DOUBLE FLANGE PIPE WITH PUDDLE
DOUBLE FLANGE PIPE WITH PUDDLE
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Min Order Qty: -
Supply Capability: -
BHGHStainless steel socket welding Flange
BHGHStainless steel socket welding Flange
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Min Order Qty: -
Supply Capability: 1000 pc/month
Flange Adaptor
Flange Adaptor
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Min Order Qty: 10 Units unit
Supply Capability: 10000 Units per Month unit/month
carbon steel a350 lf2 flange
carbon steel a350 lf2 flange
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Min Order Qty: -
Supply Capability: 1000 pc/month
Stainless Steel Flange
Stainless Steel Flange
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Min Order Qty: 1 Ton pc
Supply Capability: 3500 Tons per Mo pc/month
Milky Quartz Glass Flange
Milky Quartz Glass Flange
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Min Order Qty: 5 Pieces pc
Supply Capability: 20000 Pieces per Month pc/month
Ductile Iron Flange Adaptor
Ductile Iron Flange Adaptor
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Min Order Qty: 20 PCS pc
Supply Capability: 1000 Ton Per Month pc/month
PUDDLE FLANGE
PUDDLE FLANGE
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Min Order Qty: -
Supply Capability: -
Flange center line butterfly valve
Flange center line butterfly valve
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Min Order Qty: -
Supply Capability: -
Flange 2500 Lb
Flange 2500 Lb
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Min Order Qty: 1 Ton m.t.
Supply Capability: 3500 Tons per Month m.t./month
Flange Screws Factory Flange Screws Factory Direct Price
Flange Screws Factory Flange Screws Factory Direct Price
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Min Order Qty: 15 m.t.
Supply Capability: 3000 m.t./month
Flange Knife Gate Valve
Flange Knife Gate Valve
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Min Order Qty: 1 Set set
Supply Capability: 10000 Sets Per Month set/month
Pipe Flange Blanks
Pipe Flange Blanks
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Min Order Qty: 1 Ton m.t.
Supply Capability: 3500 Tons per Month m.t./month
Flange Butterfly Valve For Water
Flange Butterfly Valve For Water
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Min Order Qty: 1 pc
Supply Capability: 10000PIECE/YEAR pc/month
Carbon Steel Flange
Carbon Steel Flange
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Min Order Qty: 1000 KGS pc
Supply Capability: 600 TONS PER MONTH pc/month
Forging Flange,UNS N08825 flange,ALLOY 825 flange,Incoloy 825 flange
Forging Flange,UNS N08825 flange,ALLOY 825 flange,Incoloy 825 flange
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Min Order Qty: 20 m.t.
Supply Capability: 2000 m.t./month
Quartz Clear Glass Flange
Quartz Clear Glass Flange
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Min Order Qty: 5 Pieces pc
Supply Capability: 20 Tons per Month pc/month
blind flange (welding neck flange,weld neck flange)
Double flange fittings
Double flange fittings
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Min Order Qty: -
Supply Capability: -

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FAQ

Why do not use the first gasket and tighten the flange bolts, and then welding flange welding method for flange welding?
If the flange screw dies, the deformation produced during welding will cause great internal stress, and may cause hidden trouble. It may cause the fracture of the flange joint when the pressure in the pipeline is very large. The gasket will also burn during welding.s
Flat plate concave convex flange has no national standards?
No, to the concave convex form of the flange. The pressure is generally high, while the high pressure products are welded or socket welded. Not really flat plate. However, if it is hard to do, there is no problem. But there is no national standard.GB: GB/T9112-2010 (GB9113, 1-2010 ~ GB9123 = 4-2010)Ministry of chemical industry standards: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-2009 series, HG20615-2009 seriesMechanical department standard: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94, JB/T74-1994Pressure vessel standard: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000, B16.47A/B, B16.39, B16.s
What's the flange for? What's it for?
Flanges (Flange) are also called flanges or flanges. The flange is the part that connects the pipe to the pipe and is connected to the end of the pipe. The flange is lined with bolts to secure the two flanges. Gaskets for gaskets between flanges. Flange, threaded connection (wire), flange and welding flange.s
What's the single weld flange? What's the material for the welding flange? What's the difference between the two?
Stainless steel flanges are good. Our company uses their prices. The quality is goods
Why is the nominal diameter of the flange inconsistent with the tube?
Just a nominal diameter size series, but also has the difference in the same series, such as DN200 steel, the diameter is the same, but because there are a variety of wall thickness diameter so also vary, so the pipe is not free exchange. The neck flange as an example, the same is the butt welding neck flange DN200 PN2.0, the general size is the flange body size, such as the diameter of flange, flange thickness, flange bolt hole size, hole spacing and bolt hole number, but the flange neck size is not the same, so we as a DN200 tube with time hubbed welding flange, flange and pipe to ensure the uniform size of neck size. Because the nominal diameter is 200 so the flange neck diameter is fixed as the pipe diameter, the thickness of the flange neck according to the thickness of the steel tube, only the inner diameter, after welding to ensure welding, the film does not leave the shadow. Elbows, three links and so on are the same. Is the same with the DN200 elbow, three links, and the outer diameter of tube, but the elbow and tee three diameter according to the diameter of the tube, no matter what change the diameter, flange, elbow, three square meters called DN200 to various types of pipe fittings, simple, this is the meaning of nominal diameter.s
What are the specifications and dimensions of flanges?
The specifications and specifications of flanges are as follows:1, GB flange standard by the People's Republic of China State Administration of quality supervision, inspection and quarantine and the China National Standardization Management Committee jointly issued in 2011-01-10, from 2011-10-01 implementation of the recommended standards.GB/T 9112~9124-2010 includes the following 13 criteria:Instead of national standard GB/T9112-2000, GB/T10745-1989 standardTypes and parameters of GB/T 9112-2010 steel pipe flangesGB/T 9113-2010 overall steel pipe flangesGB/T 9114-2010 steel pipe flanges with neck threadGB/T 9115-2010 butt welded steel pipe flangesGB/T 9116-2010 hubbed steel pipe flangesGB/T 9117-2010 socket welded steel pipe flangesGB/T, 9118-2010, welded, ring, neck, loose, steel pipe flangesGB/T 9119-2010 plate welding steel pipe flangesGB/T 9120-2010 welded ring plate type loose steel pipe flangesGB/T 9121-2010 flat ring loose plate steel pipe flangesGB/T 9122-2010 flange ring type loose steel pipe flangesGB/T 9123-2010 steel pipe flange capGB/T 9124-2010 steel pipe flanges2, technical conditionsThe pressure markers specified in this standard are classified into PN and Class markers.The PN mark has 12 pressure levelsThey are: PN2.5; PN6; PN10; PN16; PN25; PN40; PN63;; PN100; PN160; PN250; PN320; PN400The Class mark has 6 pressure levelsThey are: Class 150; Class 300; Class 600; Class 900; Class 1500; Class 2500s
Can the hole on the flange be threaded?
Certainly. One of the flanges is the threaded flanges
Mechanical flange problems, there is a pair of flange drawings, the above mark is 6-M12 evenly distributed 23 drill 24, what is the specific meaning?
This should be M12 thread depth, drilling depth of 24mm, tapping depth of 23mm.s

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