logo

+91 77009 58575

sales@nishraoverseas.com

Screwed Flanges Manufacturer in India

Screwed Flanges, Screwed Flanges Exporter, Screwed Flanges Manufacturer in India, SS Screwed Flanges Price, Best Quality Screwed Flanges, Carbon Steel Screwed Flanges Supplier, Stainless Steel Screwed Flanges Stockists in Mumbai, India

Nishra Overseas LLP is the world's largest and most successful manufacturer, exporter, and supplier of Screwed Flanges. Our esteemed clients receive flange fittings that are highly durable for pipelines and perfect for a variety of connections. Flanges are a means of joining pumps, pipes, valves, and other associated pieces of equipment that go into creating a pipe system. Additionally, flanges offer simple access for pipe cleaning, modification, and inspection. In most circumstances, the material of the pipe and the flange are the same, however the material used for screwed flanges is typically determined during the pipe selection process.

Screwed Flanges – IBR and Non-IBR, ANSI B16.5 Screwed Flanges, SS SOF Flanges Suppliers in India, Carbon Steel Screwed – IBR and Non-IBR Flanges Exporter Supplier, EN1092, ASME B16.5 Slip on Flanges Manufacturers.

Screwed Flanges

Nishra Overseas are used in the machining of screwed and threaded flanges. High-quality stainless steel threaded flanges, alloy steel screwed flanges, nickel alloy screwed flanges, duplex steel threaded flanges, and many other types are among the various products we offer. Screwed/threaded flanges are a key component of the pipe fitting business. We also have a reputation for being one of the largest providers of long weld neck flanges. Screwed flanges are not appropriate for situations where leakage in the threads may occur, such as temperature changes, cyclic conditions, or bending forces.

Screwed Flanges are not well adapted to some situations, such as bending stress, temperature variations, or cyclic conditions where leakage through different threads may occur. Such flanges are threaded in the bore to match the pipe's exterior thread. They are also used on pipes with an exterior thread. Its ability to be connected without welding is the main advantage of these flanges. In a bind Because they may be fitted on pipes of different sizes without the need for welding, flanges are in high demand. The flanges can be used in very high-pressure applications, particularly at or near atmospheric temperature, when post-weld heating treatment is not practical.

These ANSI B16.47 Threaded Flanges meet the needs of a wide range of sectors, including pipeline, railroad, heavy engineering, and automotive. In addition to being offered in standard specifications, our flanges can also be customized to meet the needs of our customers. Our threaded flange is constructed with wall thicknesses that match the pipes' diameters. We have well-maintained inventory and the newest technological advancements available for prompt delivery to any region in India and outside. Its characteristics include high strength, precise measurements, long-lasting finish standards, and more.

We are a Stainless Steel Screwed Flange manufacturer in India, and we offer these Inconel Screwed Flange, Hastelloy Screwed Flange, Monel Screwed Flange, Alloy 20 Screwed Flange, Aluminium Screwed Flange, Nickel Screwed Flange, Duplex Screwed Flange, Super Duplex Screwed Flange, Incoloy Screwed Flange, Copper Screwed Flange, Copper Nickel Screwed Flange, Brass Screwed Flange, 254 Smo Screwed Flange, and Titanium Screwed Flange in all standards that are common in the world.

Screwed Flanges Specification

Size 1/2" (15 NB) to 48" (1200NB)
Standards ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure Ratings Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Slip On Flanges/ SORF Flanges 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 Slip On Flanges/ SORF Flanges ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Slip On Flanges/ SORF Flanges ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Slip On Flanges/ SORF Flanges Duplex, Super Duplex, Nickel Alloys
Flange Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Socket Weld Flange
Value Added Services CNC Machining, Customised Flanges

Dimensions of Screwed Flanges 150 Class

Drilling
Nominal Bore Threaded FlangesDia.(D)Thick.(E)Dia.(F)Dia.(B)Height1(H)NbrHolesDia.(C)
1/2″909.635.053014415.8760.3
3/4″10011.242.923814415.8769.9
1″11012.750.804916415.8779.4
1 1/4″11514.363.505919415.8788.9
1 1/2″12515.973.156521415.8798.4
2″15017.591.947824419.05120.7
2 1/2″18020.7104.659027419.05139.7
3″19022.3127.0010829419.05152.4
3 1/2″21522.3139.7012230819.05177.8
4″23022.3157.2213532819.05190.5
5″25522.3185.6716435822.22215.9
6″28023.9215.9019238822.22241.3
8″34527.0269.7524643822.22298.5
10″40528.6323.85305481225.40362.0
12″48530.2381.00365541225.40431.8
14″53533.4412.75400561228.57476.3
16″59535.0469.90457621628.57539.8
18″63538.1533.40505671631.75577.9
20″70041.3584.20559712031.75635.0
24″81546.1692.15663812034.92749.3

Dimensions of Screwed Flanges 300 Class

Drilling
Nominal Bore Threaded FlangesDia.(D)Thick.(E)Dia.(F)Dia.(B)Dia.(A)Height1(H)NbrHolesDia.(C)
1/2″9512.735.053823.621415.8766.7
3/4″11514.342.924829.024419.0582.6
1″125
15.9
50.805435.825419.0588.9
1 1/4″13517.563.506444.425419.0598.4
1 1/2″15519.173.157050.329822.22114.3
2″16520.791.948463.532819.05127.0
2 1/2″19023.9104.6510076.237822.22149.2
3″21027.0127.0011792.241822.22168.3
3 1/2″23028.6139.70133104.943822.22184.2
4″25530.2157.22146117.646822.22200.0
5″28033.4185.67178144.449822.22235.0
6″32035.0215.90206171.4511222.22269.9
8″38039.7269.75260222.2601225.40330.2
10″44546.1323.85321276.2651628.57387.4
12″52049.3381.00375328.6711631.75450.8
14″58552.4412.75425360.4752031.75514.4
16″65055.6469.90483411.2812034.92571.5
18″71058.8533.40533462.0872434.92628.6
20″77562.0584.20587512.8942434.92685.8
24″91568.3692.15702614.41052441.27812.8

Dimensions of Screwed Flanges 600 Class

Drilling
Nominal Bore Threaded FlangesDia.(D)Thick.(E)Dia.(F)Dia.(B)Dia.(A)Height1(H)NbrHolesDia.(C)
1/2″9514.335.053823.622415.8766.7
3/4″11515.942.924829.025419.0582.6
1″12517.550.805435.827419.0588.9
1 1/4″13520.763.506444.429419.0598.4
1 1/2″15522.373.157050.632422.22114.3
2″16525.491.948463.537819.05127.0
2 1/2″19028.6104.6510076.241822.22149.2
3″21031.8127.0011792.246822.22168.3
3 1/2″23035.0139.70133104.949825.40184.2
4″27538.1157.22152117.654825.40215.9
5″33044.5185.67189144.460828.57266.7
6″35547.7215.90222171.4671231.75292.1
8″42055.6269.75273222.2761231.75349.2
10″51063.5323.85343276.2861634.92431.8
12″56066.7381.00400328.6922034.92489.0
14″60569.9412.75432360.4942038.10527.0
16″68576.2469.90495411.21062041.27603.2
18″74582.6533.40546462.01172044.45654.0
20″81588.9584.20610512.81272444.45723.9
24″940101.6692.15718614.41402447.62838.2

What Is Screwed Flanges?

Screwed flanges are a critical component of piping systems that offer a secure junction between two pipes. They consist of two tapered threads that connect two components on a flat surface. Their simple form and low cost make them a popular choice for joining pipes of various sizes and pressures. Furthermore, because the flange is screwed directly into the pipe rather than welded, they are simple to install without the need for welding or other specific instruments. Furthermore, they are reasonably easy to fix if necessary due to their simple installation method and replaceability, which allows you to simply unscrew the existing one from the pipe and insert a new one.

Screwed Flanges Applications

Oil and Gas Processing Dairy and Food Processing
Desalination Pesticides
Pulp and Paper Sugar Factory
Energy industries Power Plants
Ship Building Fertilizers
Machine Building Nuclear
Pharmaceuticals Chemicals
Textile Machinery Synthetic Fibers
Construction Modern Architecture
Refinery & Petrochemicals Water treatment facilities

Screwed Flanges Marking

Every Standards have clearly requirements for steel flanges’ marking style, usually the marking words include seller’s Logo, buyer’s Logo (OEM), standard number, flange’s type, flange’s pressure, flange’s size, flange’s material, place of origin, heat number and other words for convenient to trace. If the flanges repaired by welding, it must mark on flanges showing this flange repared by welding. If the flange’s dimensions (OD, ID, PCD, Thickness, Holes number, Holes diameter, Tolerance etc) are different with the normal standard, it also must mark on flanges where it is different with normal ones. Another important place is heat number marking, it is the tracing base for every piece flange, and from the heat number we can trace to the beginning of raw material import.

  • The Marking Style for European Standards Flanges, DIN, UNI, EN 1092-1 norms etc
    LOGO, EN 1092-1, TYPE 01, PN16, DN80, 88.9, P265GH, HEAT NUMBER
  • The Marking Style for ANSI, ASME Standards Flanges, ANSI, ASME, AWWA norms etc LOGO, ASME B16.5, CLASS 150#, SLIP-ON RF, A105, HEAT NUMBER
  • The Marking Style For JIS, KS norms etc, special with KS Mark
    LOGO, JIS B2220, 5K, 80A, SOP, SF440A, HEAT NUMBER, KS MARK
  • The Marking Style for BS 4504 norms etc
    LOGO, BS 4504, WELD NECK, PN40, DN80, RSt37.2, HEAT NUMBER
  • The Marking Style for GOST 12820, GOST 12821 norms etc
    LOGO, GOST 12820, PN1.6MPA, DN80, Q235B, HEAT NUMBER
  • The Marking Style for SABS 1123, SANS 1123 norms etc
    LOGO, SABS 1123, CLASS 4000/3, NB80, A105, HEAT NUMBER

Screwed Flanges for Shipping, Handling, and Packaging

Carbon Steel Screwed Flanges and Stainless Steel Socket Weld Flanges are delivered with or without surface protection, as determined by the manufacturer.

The company delivers Screwed Flanges in standard packaging, without surface protection or end protectors (caps). Special packaging, protective covers, and end protectors (caps) can be agreed upon.

Steel Flanges
Other Flanges
Other Products
Global Supplier Contries
Angola
Australia
Austria
Bahrain
Belgium
Brazil
Canada
Chile
Denmark
Egypt
France
Germany
India
Indonesia
Iran
Israel
Italy
Japan
Jordan
Kazakhstan
Kuwait
Malaysia
Maxico
Morocco
Netherlands
Nigeria
Oman
Philippines
Poland
Qatar
Romania
Russia
Saudi Arabia
Singapore
South Africa
South Korea
Spain
Sweden
Switzerland
Taiwan
Thailand
Turkey
UAE
UK
USA
Venezuela
Vietnam
Zambia
Copyright © 2025 Nishra Overseas LLP All Rights Reserved.