SW Flange (Socket Weld Flange) contain a shoulder on the inside of the flange that acts as a guide to set the depth at which the pipe is welded to the flange. They are fabricated by inserting the pipe end into the flange until it bottoms out against the shoulder, and then retracting the pipe 1/8 in before welding it in place. This practice was originally employed to reduce cracking due to thermal stresses in stainless steel superheaters, but over the years has become standard practice for the installation of all socket weld flanges (SW Flange).
Classification of blind flange
Usually, flange is devided into threaded flange, welding flange and clamp flange. Flanges are used in pairs, threaded flanges are used in low pressure pipe, welding flanges are used in pipe which pressure is bigger than 4kg.
According to the connection type, flange can be devided into welding plate flange, hubbed slip-on flange, hubbed butt welding flange, socket welding flange, threaded flange, blind flange, hubbed butt welding ring slip-on flange, flat welding ring slip-on flange, ring groove flange, large diameter high hubbed flange, large diameter plate flange, and spectacle blind etc
Product Name | Carbon steel / Stainless steel / Alloy Flanges |
Standard | ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Type | WN Flange, So Flange, LJ Flange, LWN Flange, SW Flange, Orifice Flange, Reducing Flange, figure 8 blind (blank&Spacer) |
Materials | Nickel Alloy: ASTM/ASME S/B366 UNS N08020, N04400, N06600, N06625, N08800, N08810, N08825, N10276,N10665,N10675 Carbon Steel: ASTM/ASME S/A105, ASTM/ASME S/A350 LF2, ASTM/ASME S/A694/A694M, F42, F52, F56, F60, F65, F70....ASTM/ASME S/A350 LF2, ASTM/ASME S/A694/A694M, F42, F52, F56, F60, F65, F70.... |
Dimension | (150#,300#,600#): DN15-DN1500 |
Marking | Supply Logo + Standard + Size(mm) + HEAT NO +or as your requirement |
Test | Chemical Component Analysis, Mechanical Properties, Metallurgical Analysis, Impact Testing, Hardness testing , Ferrite Testing, Intergranular corrosion testing, X-ray Inspection (RT), PMI, PT, UT, HIC & SSC test, etc. or as your requirment |
Brand | TOBO |
Certificates | API, ISO, SGS, BV, CE, PED, KOC, CCRC, PDO, CH2M HILL and etc. |
Advantages | 1. Abundant stock and prompt delivery 2. Reasonable for whole packages and processes. 4. More than 150 customers spread worldwide. (Petrofac, G.S Engineer, Fluor, Hyundai Heavy industry, Kuwait National Oil, Petrobras, PDVSA, PetroEcuador, SHELL, etc.) |
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Wooden cases or according to customers' requirements.
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: 30% T/T in advance,balance before shippment.
If you have another question, pls feel free to contact us as below:
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 7-15 days if the goods are not in stock, it is according to quantity.
NOTE: The part here of only displays our processing capabilities, if customers have any parts of similar processing methods, please send us the drawings and specifications for our accurate quotation. And the price shown above is for reference only, in case customers are interested in it, please feel free to contact us for more details.
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