logo

+91 77009 58575

sales@nishraoverseas.com

Reducing Flanges Manufacturer in India

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

Nishra Overseas LLP is a manufacturer, producer, and exporter of Reducing Flanges that are custom-built to meet the unique needs of various sectors. We are also growing our international footprint. Pipes of different sizes are part of a complicated piping network, and they may be built so that they need to be changed frequently. To adapt to the incoming stream of variations, the pipe's diameter is regularly changed. A stainless steel reducing flange comes into play here. Whether it is made of Monel, Inconel, Hastelloy, Carbon Steel, or Alloy Steel, it may easily link pipes of different sizes. For high-pressure systems like boilers and condensers, ANSI B16.5 Alloy Steel Reducing Flanges are appropriate because they can withstand high pressure.

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

Reducing Flanges

The A182 F316L RTJ Reducing Flanges are unique in that they are made up of two sections that form rings. These rings are welded together using equal-sized pipes, and the halves are fitted together for maximum fastening. The SS Reducing Flanges are available in many pressure classes, including 1500 and 600. Duplex steel non-reducing flanges and stainless steel flanges are two examples of the various material grades. Various pressure calculations are available, including PN16 through PN64 and 10 bar through 60 bars. Types of carbon steel reducing flanges are available that are very resistant to wear and tear.

Socket Weld Reduction Flanges have a socket welded with a decreasing neck and are used to connect two different diameter high-pressure pipes. A stronger seal is achieved, however, by focussing the surface pressure by reducing the surface area of the seal using Raised Face Reducing Flanges. Ductile Iron Reducing Flanges are utilized in high-corrosion settings. Cast Iron Reducing Flanges are produced by us using the best raw materials and are offered to our clients at competitive pricing.

The B16.47 Reducing Flange is a great way to join flanges of different sizes and comes in a variety of types and pressure classifications. The cheapest and easiest way to match two flanges of various sizes is reportedly the 4 Inch To 3 Inch Reducing Flange. To transmit the stress to the pipe and lessen it on the flange, a large diameter weld neck reducing flange is utilized.

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

Reducing 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 Reducing Flanges

NPS For Normal Pipe Size In
(Inch)
DN
In (Millimeter)
FLANGE OD (OUTSIDE DAIMETER)
A MM
FLANGES WALL THICKNESS (D)
MM
SORF FLANGES WEIGHT (KILOGRAM)WNRF FLANGES WEIGHT (KILOGRAM)BLRF FLANGES WEIGHT (KILOGRAM)
1/ 21588.911.20.40.50.4
3/ 42098.612.70.60.70.6
12510814.20.810.9
1 1/ 432117.315.711.31.2
1 1/ 24012717.51.31.71.5
250152.419.12.12.62.4
2 1/ 265177.822.43.34.13.9
380190.523.93.94.94.9
3 1/ 290215.923.94.86.16.2
4100228.623.95.36.87.0
512525423.96.18.68.6
6150279.425.47.510.611.3
8200342.928.412.117.619.6
10250406.430.216.52428.6
12300482.631.826.236.543.2
14350533.435.134.648.458.1
16400596.936.644.860.676.1
1845063539.648.968.393.7
20500698.542.961.984.5122.0
24600812.847.886.9115185.0

Dimensions of Weld Neck Reducing Flange

NPS For Normal Pipe Size Size in Inch NPS For Normal Pipe Size Size in Millimeter(O.D.) For Outside DiameterWall Thickness Of FlangeDiameter Of Hub OuterDiameter Of Weld Neck OuterLength Of Weld NeckFlange BoreDiameter Of (RF) Raised FaceHeight Of (RF) Raised FacePCDWeld Face
--(A)(B)(C)(D)(E)(F)(G)(H)(I)(J)
1/215909.63021.346-34.9260.31.6
3/42010011.23826.75142.9269.91.6
12511012.74933.45450.8279.41.6
1 1/43211514.35942.25663.5288.91.6
1 1/24012515.96548.36073298.41.6
25015017.57860.36292.12120.71.6
2 1/26518020.7907368104.82139.71.6
38019022.310888.9681272152.41.6
3 1/29021522.3122101.670139.72177.81.6
410023022.3135114.375157.22190.51.6
512525522.3164141.387185.72215.91.6
615028023.9192168.387215.92241.31.6
820034527246219.1100269.92298.51.6
1025040528.6305273100323.823621.6
1230048530.2365323.81133812431.81.6
1435053533.4400355.6125412.82476.31.6
1640059535457406.4125469.92539.81.6
1845063538.1505457.2138533.42577.91.6
2050070041.3559508143584.226351.6
2460081546.1663610151692.22749.31.6

Dimensions of Threaded Reducing Flange

NPS For Normal Pipe SizeO.D. For Outside Daimeter

(A)

Diameter Of Raised Face (RF)

(B)

Wall Thickness Of

(C)

Diameter Of Hub at Base

(J)

Length Of Hub

(L)

Thread (minimum) Length

(N)

Number of Bolt Holes

Approx. Weight In Kilogram

(Lbs.)

1/23 1/21 3/87/161 3/165/85/842
3/43 7/81 11/161/21 1/25/85/842
14 1/429/161 15/1611/1611/1642
1 1/44 5/82 1/25/82 5/1613/1613/1643
1 1/252 7/811/162 9/167/87/843
263 5/83/43 7/161145
2 1/274 1/87/83 9/161 1/81 1/847
37 1/2515/164 1/41 3/161 3/1648
3 1/28 1/25 1/215/164 13/161 1/41 1/4811
496 3/1615/165 5/161 5/161 5/16813
5107 5/1615/166 7/161 7/161 7/16815
6118 1/217 9/161 9/161 9/16819
813 1/210 5/81 1/89 11/161 3/41 3/4830
101612 3/41 3/16121 15/161 15/161243
1219151 1/414 3/82 3/162 3/161264
142116 1/41 3/815 3/42 1/42 1/41285
1623 1/218 1/21 7/16182 1/22 1/21693
1825211 9/1619 7/82 11/162 11/1616120
2027 1/2231 11/16222 7/82 7/820155
2229 1/225 1/41 13/16243 1/83 1/820159
243227 1/41 7/826 1/83 1/43 1/420210

What is Reducing Flange

Reducing flanges are specialized pipe flanges used to connect two pipes of different diameters. They feature a conical shape with a smaller circumference on the outside than the inside, allowing them to fit over one pipe's end and into the aperture of another. This allows you to connect to different-sized pipes while maintaining correct flow and pressure between them. Reducing flanges offer flexibility when installing piping systems in industrial settings and allow for adjustments, particularly in off-angle connections. Furthermore, their conically shaped design reduces turbulence and stress on associated components or equipment while offering sufficient strength to withstand high pressures.

How do reducing flanges work?

Reducing flanges link two different sized pipe openings and often have a lower pressure rating than the larger opening. These components have a concentric welding angle on both sides of the flange, allowing for easy connection to pipes and other components. The reduction on one side enables for long-distance connections of various sizes, hence the name. When connected, they prevent gas or liquid leaks at high-pressure places along a pipeline system. These adaptable components are widely used in mechanical, industrial, chemical, plumbing, and wastewater-related applications.

Reducing Flange 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

Reducing Flange 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

Reducing Flange for Shipping, Handling, and Packaging

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

The company delivers Reducing Flange 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.