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Minimum Order Quantity | 50 Piece |
Material | Stainless Steel, Carbon, Carbon Steel |
Size | 0-1 inch, 1-5 inch, 5-10 inch |
Material Standard | ASTM A105, ASTM A182 |
Color | Black |
Product Customization | Yes |
Size | 1-5 inch, 5-10 inch, 10-20 inch, 1 / 8" NB TO 48"NB |
Material Standard | ASTM A105, ASTM A182, ASTM A351 |
MOC | SS, CS |
Lap Joint /Van Stone Flange
· Lap joint flanges are always used with either a stub end or Taft which is butt welded to the pipe with the flange lose behind it.
· This means the stub end or Taft always makes the face.
· A lap joint is used in low-pressure applications because it is easily assembled and aligned.
· To reduce costs, these flanges are supplied without a hub.
· If stub and flange are of the same material, they will be more expensive than a welding neck flange.
· Economical for the different material of stub and flange.
Material | Carbon Steel, Stainless Steel |
Color | Silver |
Size | 2 inch, 3 inch, 1 inch, 3/4 inch, 1/2 inch, 1 / 8" NB to 48"NB |
Shape | Round |
Socket Welding Ring Flange
Socket weld ring flanges are counter-bored to accept the pipe before being fillet welded.
The bore of the pipe and flange are both the same to provide good flow characteristics.
· Easier alignment of smaller lines than Butt weld fittings
· Tacking procedure is not necessary, therefore reducing welding time.
· No chance of leakage
Size | 1 / 8" NB TO 48"NB |
Material Standard | ASTM A105, ASTM A182, ASTM A351 |
Material | SS, CS |
A spectacle blind is a safety device used to isolate a section of the line.
It is a piece of equipment used when the line or equipment needs to be inspected or removed from service.
It is different than a valve in that the blind is a permanent or long-term isolation device.Size | 1/2 NB to 36 inch NB |
Nace | NACE MR 01-75, MR 01 03 |
Grade | F 44, F 45, F51, F 53, F 55, F 60, F 61 |
Duplex Steel Flanges Standard | ASTM / ASME A/SA 182 |
Size | 0-1 inch, 1-5 inch, 5-10 inch, 10-20 inch |
Material Standard | ASTM A182 |
Material | SS, CS |
Size | 1 / 8" NB TO 48"NB |
Material Standard | ASTM A105, ASTM A182, ASTM A351 |
Material | SS |
Ring Type Joint Flanges
Ring type joint flanges are used to ensure a leak-proof flange connection at high pressures.
A metal ring is compressed into a hexagonal groove on the face of the flange to make the seal.
This jointing method can be employed on Weld Neck, Slip-on and Blind Flanges.
Size | 1 / 8" NB TO 48"NB |
Material Standard | ASTM A105, ASTM A182, ASTM A351 |
Material | SS,CS |
Weld neck flanges are circumferentially welded at the neck where the integrity of the butt welded area can be easily examined by radiography.
The bores of both pipe and flange match, which reduces turbulence and erosion inside the pipeline.
The weld neck is therefore durable for critical applications.
Suitable where
· extreme temperature,
· shear,
· impact and vibrational stress apply
Regular - Generally used in piping sections.
Long - Used in vessels, equipment nozzle, rarely used in the piping system.
Standard:
Size | 1 / 8" NB TO 48"NB |
Material Standard | ASTM A182, ASTM A351, ASTM A105 |
MOC | SS, CS |
Slip-On Ring Flange
Slip-on flanges are fitted over the pipe and then fillet welded.
Slip-on flanges are easy to use in fabricated applications.
Internal welds are slightly more subject to corrosion than the Butt Weld Neck Flanges.
Poor resistance to shock and vibration
Cheaper to buy
Costlier to assemble
Strength under internal pressure is just 1/3RD of that of corresponding WN Flange.
Easier to align than WN Flange.
Size | 0-1 inch, 1-5 inch |
Material Standard | ASTM A182, ASTM A351, ASTM A105 |
Grade | Alloy 20 UNS N0.8020 |
A nickel-iron-chromium alloy with additions of molybdenum and copper. Alloy 20 has great resistance to pitting, general corrosion, and crevice corrosion in chemicals containing sulfuric, nitric, and phosphoric acids as well as chlorides. It also contains niobium for stabilization and is used for piping, tanks, pumps, valves, heat exchangers, and other process equipment.
Flanges | ½"-12" | 150#, 300# | ASTM/ASME 462 |
Ni...32.0-38.0 | Nb...1.0 max. |
Fe...Remainder | C....0.07 max. |
Cr...19.0-21.0 | Mn...2.0 max. |
Cu...3.0-4.0 | P....0.045 max. |
Nb + Ta...8 x C-1.0 | S....0.035 max. |
Mo...2.0-3.0 | Si...1.0 max. |
Grade | Alloy 20 UNS N0.8020 |
Types | Slip On Flanges, Socket Weld Flanges, Blind Flanges, Lapped Flanges, Screwed Flanges, Weld Neck Flanges, Reducing Flanges, Spectacle Flanges, Slip On Boss Flanges, Plate Flanges, Plate Blank Flanges, Screwed Boss Flanges |
Size | 1 / 8" NB TO 48"NB |
Material Standard | ASTM A105, ASTM A182 |
Material | SS, CS |
Threading Flange
Threaded flange are referred to as either threaded or screwed.
They are used to connect other threaded components in low pressure, non-critical applications. No welding is required.
Non-toxic, Environment friendly and cost effective as no welding is involved.
Chances of leakage are comparatively higher, generally not used where leaks cannot be tolerated.
Used in services where regular maintenance is required.
All fittings are threaded internal(Female) with American National Standard Pipe Threads ASME B1.20.1 (NPT) or British Standard Pipe Threads (BSP)
Size | 1 / 8" NB TO 48"NB |
Material Standard | ASTM A182, ASTM A351, ASTM A105 |
Material | SS |
Reducing Flange
Specified by the size of the smaller pipe and outside diameter of the flange to be mate.
Example: RED FLG 4” x 11”
· Should not be used if abrupt transition would create undesirable turbulence as in the case of pumps.
Expander flange
These type of flanges are a combination of Weld Neck and Reducing flanges.
These types of flanges are used to increase the pipe size to first or second larger sizes.
Size | 1/8" NB TO 48"NB |
Material Standard | ASTM / ASME SB 564 |
Material | SS, CS |
Monel Flanges
It is a hard and ductile metal of silver-white color.
It has high corrosion resistance suitable for both high and low-temperature applications.
Nickel is a fair conductor of heat and electricity making it suitable for its use in furnaces, heat exchangers, aerospace engineering etc.
Nickel has high metallurgical stability making it suitable for hard-metal industry. It also acts as a catalyst for various chemical processes.
Nickel alloys tubing products are made available in seamless and welded tubes and pipes
Important characteristics include corrosion & oxidation resistance, ductility, brilliant polish, excellent mechanical strength, high creep resistance, high-temperature resistance.Standards | ASTM / ASME SB 564 |
Grades | Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500) |
Size | 1/8" NB TO 48"NB |
Forms | Socket Weld |
Weld Neck | |
Slip-on | |
Long Weld Neck | |
Blind | |
Reducing | |
Lapped | |
Spectacle | |
Screwed | |
Ring Joint |
Size | 0-1 inch, 1-5 inch |
Material Standard | ASTM A105, ASTM A351, ASTM A182 |
Material | SS, CS |
DIN 2502 | DIN 2503 | DIN 2527 |
DIN 2565 / 2566 | DIN 2573 / 2576 | DIN 2627 / 2628 |
DIN 2629 / 2630 | DIN 2631 | DIN 2632 |
DIN 2633 | DIN 2634 | DIN 2635 / 2636 |
DIN 2637 / 2638 | DIN 2641 | DIN 2642 |
DIN 2655 / 2656 | DIN 86029 / 86030 |
Size | 0-1 inch, 1-5 inch, 5-10 inch |
Material Standard | ASTM A105, ASTM A182, ASTM A351 |
Material | SS, MS, CS |
Commercially pure (99.6%) wrought nickel with good mechanical properties and resistance to a range of corrosive media. Nickel 200/201 has a lower carbon content to prevent embrittlement by intergranular carbon at temperatures over 600°F (315°C), making it particularly suitable for cold-formed items.
UNS N02200/N02201
Flanges | ½"-8" | 150#, 300# | ASTM/ASME 564 |
Nia...99.0 min. | Si...0.35 max. |
Cu...0.25 max. | S....0.01 max. |
Fe...0.40 max. | |
Mn...0.35 max. | |
C.....0.02 max. | *a denotes - Plus Co |
Forms | Socket Weld Flange, Slip On Flange, Blind Flange, Lapped joint Flange, Screwed Flange, Weld Neck Flange, Long Weld Neck Flange, Reducing Flange, Spectacle Flange, Ring Joint Flange |
Grades | Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201),Nickel 205 (UNS N02205) |
Size | 0-1 inch, 1-5 inch |
Material Standard | ASTM A105, ASTM A182, ASTM A351 |
Material | SS, CS |
Hastelloy Flanges
It is a hard and ductile metal of silver-white color. It has high corrosion resistance suitable for both high and low-temperature applications.
Nickel is a fair conductor of heat and electricity making it suitable for its use in furnaces, heat exchangers, aerospace engineering etc. Nickel has high metallurgical stability making it suitable for hard-metal industry. It also acts as a catalyst for various chemical processes.
Nickel alloys tubing products are made available in seamless and welded tubes and pipes
Important characteristics include corrosion & oxidation resistance, ductility, brilliant polish, excellent mechanical strength, high creep resistance, high-temperature resistance.