Flanges

Long Weld Neck Flange

MetForge Piping Solution Pvt. Ltd. is certified to cater to the rigid and stringent requisites of the most critical of industries. Long Weld Neck Flanges are used with a stub end, which is welded to the pipe. Alloy Steel Long Weld Neck Flanges are designed in a way that they swing over the pipe without the need to be welded. As they do not come in contact with the inner fluid, they do not corrode and can be re-used. Our ANSI B16.5 Stainless Steel Long Weld Neck Flanges are inexpensive and widely useful. In addition, they can be easily assembled and dismantled for quick inspection.

Leading Manufacturer of ASME B16.5 Long Weld Neck Flange, Stockist of Stainless Steel Long Weld Neck Flange, Global Supplier of Long Weld Neck Flange, Long Weld Neck Flange, ANSI B16.5 Class 150 Long Weld Neck Flange, Long Weld Neck Flange Dealer in India, ANSI B16.5 Long Weld Neck Flange manufacurer in India.

Technical Specifications

Size

1/2″ (15 NB) to 48″ (1200NB), Custom Sizes

StandardsANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure RatingsClass 150, Class 300, Class 400, Class 600, Class 900, Class1500, sClass 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Long Weld Neck Flange
ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Long Weld Neck Flange
ASTM A182, A240 – F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Long Weld Neck Flange
ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Long Weld Neck Flange
Duplex, Super Duplex, Nickel Alloys
Flange Face TypeFlate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface TreatmentAntirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value added servicesCNC Machining, Customised Flanges

Applications of Long Weld Neck Flange

ASME B16.5 Long Weld Neck Flange are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Screwed Flanges through a worldwide network of stock-keeping branches. These Long Weld Neck Flange is use in various industries like :

  • Long Weld Neck Flange used in Transporting materials
  • Stainless Steel Long Weld Neck Flange used in the Automotive industry
  • Long Weld Neck Flange used in Homes and buildings
  • SS Long Weld Neck Flange are used in Sewerage systems and industrial water lines.
  • Carbon Steel Long Weld Neck Flange are used in heating and air-conditioning equipment.
  • Long Weld Neck Flange used in Plumbing
  • Alloy Long Weld Neck Flange used in Food Processing Industry
  • Long Weld Neck Flange used in the Paper & Pulp Industry
  • Long Weld Neck Flange used in Food Industry

Frequenty Asked Questions

A flange is a protruding ridge or rim, often used to increase strength or spread the load. Pipe flanges form a rim that radially protrudes from the end of a pipe. They have several holes that allow two pipe flanges to be bolted together, forming a connection between two pipes. A gasket may be fitted between two flanges to improve the seal.

Pipe flanges are classified according to how they are attached to the pipe.

  • Plate Blank Flange
  • Lap Joint Flange
  • Weld Neck Flange
  • Orifice Flange
  • Long Weld Neck Flange
  • Screwed Flange
  • Socket Weld Flange
  • Blind Flange
  • RTJ Flange
  • Threaded Flange
Flanges are used to connect pipes, valves, pumps, and other parts to form a piping system. Flanges are typically screwed or welded. The use of flanges allows a person to easy repair and maintains the pipe system. Instead of taking out the whole pipe for inspection, the small section of the pipe can be inspected to find the fault with the help of flange. The flange will allow easy inspection and cleaning of a pipe.

Stainless Steel Plate Flanges :
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Duplex & Super Duplex Steel Plate Flanges :
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Carbon Steel Plate Flanges :
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706

Low Temperature Carbon Steel Plate Flanges : 
ASTM A350, LF2, LF3

Alloy Steel Plate Flanges :
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Copper Alloy Steel Plate Flanges : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200

Nickel Alloy Plate Flanges :
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)

Threaded Flange Screwed Flanges
ANSI B16.5 Threaded Flanges Threaded Flange Dimensions
ASME B16.5 Screwed Flanges ANSI B16.5 Class 150 Threaded Flanges
Stainless Steel Threaded Flanges Suppliers SS Threaded Flange
Threaded Plate Flanges Dealer ASME B16.47 Series A and B Screwed Flanges Exporter
ANSI B16.5 class 150 Screwed Flange Stockholder ANSI 150 Threaded Flange Distributors
Carbon Steel Threaded Flange High Quality Screwed Flanges Manufacturer
ASTM A182 Stainless Steel Screwed Flange Duplex Steel Threaded Flange
Super Duplex Steel Threaded Forged Flange Copper Nickel Threaded Pipe Flanges
High Nickel Alloy Screwed Flanges Hastelloy Flat Faced Threaded Flanges Stockist
Titanium ASME B16.47 Series A and B Screwed Flanges Inconel Threaded Flanges
Pipe Size 

(NPS)

Outside Diameter of Flange 

A

Diameter of Raised Face 

B

Thickness of Flange 

C

Diameter of Hub at Base 

J

Length of Hub 

L

Minimum Thread Length 

N

Number of Bolt Holes Approx. Weight 

(Lbs.)

1/2 3 1/2 1 3/8 7/16 1 3/16 5/8 5/8 4 2
3/4 3 7/8 1 11/16 1/2 1 1/2 5/8 5/8 4 2
1 4 1/4 2 9/16 1 15/16 11/16 11/16 4 2
1 1/4 4 5/8 2 1/2 5/8 2 5/16 13/16 13/16 4 3
1 1/2 5 2 7/8 11/16 2 9/16 7/8 7/8 4 3
2 6 3 5/8 3/4 3 7/16 1 1 4 5
2 1/2 7 4 1/8 7/8 3 9/16 1 1/8 1 1/8 4 7
3 7 1/2 5 15/16 4 1/4 1 3/16 1 3/16 4 8
3 1/2 8 1/2 5 1/2 15/16 4 13/16 1 1/4 1 1/4 8 11
4 9 6 3/16 15/16 5 5/16 1 5/16 1 5/16 8 13
5 10 7 5/16 15/16 6 7/16 1 7/16 1 7/16 8 15
6 11 8 1/2 1 7 9/16 1 9/16 1 9/16 8 19
8 13 1/2 10 5/8 1 1/8 9 11/16 1 3/4 1 3/4 8 30
10 16 12 3/4 1 3/16 12 1 15/16 1 15/16 12 43
12 19 15 1 1/4 14 3/8 2 3/16 2 3/16 12 64
14 21 16 1/4 1 3/8 15 3/4 2 1/4 2 1/4 12 85
16 23 1/2 18 1/2 1 7/16 18 2 1/2 2 1/2 16 93
18 25 21 1 9/16 19 7/8 2 11/16 2 11/16 16 120
20 27 1/2 23 1 11/16 22 2 7/8 2 7/8 20 155
22 29 1/2 25 1/4 1 13/16 24 3 1/8 3 1/8 20 159
24 32 27 1/4 1 7/8 26 1/8 3 1/4 3 1/4 20 210

Our Products

Materials

Stainless Steel Products
  • Plate Blank Flange
  • Lap Joint Flange
  • Weld Neck Flange
  • Orifice Flange
  • Long Weld Neck
  • Flange
  • Screwed Flange
  • Socket Weld Flange
  • Blind Flange
  • RTJ Flange
  • Threaded Flange
Duplex Steel Products
  • Elbow
  • Tee
  • Union
  • Cross
  • Bushing
  • Plug
  • Swage Nipple
  • Welding Boss
  • Hexagon Nipple
  • Barrel Nipple
  • Welding Nipple
  • Parallel Nipple
  • Street Elbow
  • Hexagon Nut
  • Hose Nipple
  • Bend
  • Adapter
  • Insert
  • Weldolet
  • Elbowlet
  • Sockolet
  • Thredolet
  • Nipolet
  • Letrolet
Carbon Steel Products
  • Anchor Fasteners
  • Hex Head Bolts
  • Socket Caps Screw
  • Hex Nuts
  • Eye Bolts
  • Stud Bolts
  • Threaded Rods
  • Countersunk Bolts
  • Flat / Spring / Lock
  • Washers
  • Foundation Bolts
Alloy Steel Products
  • 45 Deg Elbow
  • 90 Deg Elbow
  • 180 Deg Elbow
  • LR Elbow (Long Radius Elbow)
  • SR Elbow (Short Radius Elbow)
  • Equal Tee
  • Reducing / Unequal Tee
  • Concentric Reducer
  • Eccentric Reducer
  • End Cap
  • Long Stub End
  • Short Stub End
  • Lap Joint Stub End
  • Equal Cross
  • Reducing / Unequal Cross
  • Seamless Fittings
  • Welded Fittings
Special Alloy Products
  • 45 Deg Elbow
  • 90 Deg Elbow
  • 180 Deg Elbow
  • LR Elbow (Long Radius Elbow)
  • SR Elbow (Short Radius Elbow)
  • Equal Tee
  • Reducing / Unequal Tee
  • Concentric Reducer
  • Eccentric Reducer
  • End Cap
  • Long Stub End
  • Short Stub End
  • Lap Joint Stub End
  • Equal Cross
  • Reducing / Unequal Cross
  • Seamless Fittings
  • Welded Fittings
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