Reducing Flange

Teshi Fittings, a premier manufacturer of pipe fittings, offers high-quality Reducing Flanges designed for various industries including Petroleum, Chemical, Hydraulic, Food, and more. Crafted with meticulous precision and adherence to international quality standards, our Reducing Flanges provide efficient solutions for connecting pipes of different sizes in piping systems. With a commitment to excellence and customer satisfaction, Teshi Fittings delivers superior performance and durability in every flange, offering tailored solutions to meet specific project requirements. Experience the difference with Teshi Fittings’ Reducing Flanges and trust in our expertise for all your piping needs.

Enquire Now

Specification
Material & Grades
Dimensions

Standard Specification of Reducing Flange

Standards / Dimensions	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605
Size	1/2″ (15 NB) to 48″ (1200NB)
Flange Face Types / Connection Type	Flat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G)
Dimensions	ANSI B16.5, ANSI B16.47 Series A & B, ASA, API-605, MSS SP44, AWWA, Custom Drawings
BS	BS4504 , BS4504, BS1560, BS10
Class / Pressure Rating	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Material & Grades of Reducing Flange

Stainless Steel	ASTM/ASME A/SA182:- F304, F304L, F316, F316L, ASTM/ASME A/SA351:- CF3, CF3M, CF8, CF8M, DIN 1.4306, DIN 1.4301, DIN 1.4404, DIN 1.4401, DIN 1.4408, DIN 1.4308, DIN 1.4306, DIN 1.4409
Duplex & Super Duplex Steel	S31803 / S32205 A182:- Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 S32750 / S32760 A182:- Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Carbon Steel	ASTM/ASME A/SA105 A/SA105N and A/SA216-WCB, DIN 1.0460, DIN 1.0402, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, CS High Yield ASTM A694 / A694 (F52, F56, F60, F65, F70, F80)
Low Temperature Carbon Steel	ASTM A350, LF2, LF3
Alloy Steel	ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Nickel Alloy	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), Titanium (Grade I & II)

Dimension of Reducing Flange

Nominal Size		Type	Ø A	D	Liner Thickness
DN1	DN2	Type	Ø A	D	Liner Thickness
In.	In.		mm	mm	mm
3/4″	1/2″	1	98.5	30	5.0
1″	1/2″	1	108	30	5.0
1″	3/4″	1	108	30	5.0
1.1/2″	1/2″	1	127	30	5.0
1.1/2″	3/4″	1	127	30	5.0
1.1/2″	1″	1	127	30	5.0
2″	1/2″	3	152	30	5.0
2″	3/4″	2	152	30	5.0
2″	1″	2	152	30	5.0
2″	1.1/2″	1	152	30	5.0
3″	3/4″	3	190.5	35	5.0
3″	1″	3	190.5	35	5.0
3″	1.1/2″	2	190.5	35	5.0
3″	2″	1	190.5	35	5.0
4″	3/4″	3	228.6	35	5.0
4″	1″	3	228.6	35	5.0
4″	1.1/2″	3	228.6	35	5.0
4″	2″	3	228.6	35	5.0
4″	3″	2	228.6	35	5.0
6″	3/4″	3	280	40	5.0
6″	1″	3	280	40	5.0
6″	1.1/2″	3	280	40	5.0
6″	2″	3	280	40	5.0
6″	3″	3	280	40	5.0
6″	4″	2	280	40	5.0
8″	1″	3	343	35	5.0
8″	1.1/2″	3	343	35	5.0
8″	2″	3	343	40	5.0
8″	3″	3	343	40	5.0
8″	4″	3	343	40	5.0
8″	6″	2	343	40	5.0
10″	1″	3	406	35	2.5
10″	1.1/2″	3	406	35	2.5
10″	2″	3	406	35	2.5
10″	3″	3	406	35	2.5
10″	4″	3	406	35	2.5
10″	6″	3	406	35	2.5
10″	8″	2	406	35	3.5
12″	1″	3	483	35	3.5
12″	1.1/2″	3	483	35	3.5
12″	2″	3	483	35	3.5
12″	3″	3	483	35	3.5
12″	4″	3	483	35	3.5
12″	6″	3	483	35	3.5
12″	8″	3	483	35	3.5
12″	10″	2	483	35	3.5
14″	12″	1	533	40	3.5
16″	12″	3	597	40	3.5
16″	14″	2	597	35	3.5

Manufacturing process and features of Reducing Flange

Manufacturing Process:

Material Selection : Choose suitable materials such as carbon steel, stainless steel, or alloy steel based on application requirements.
Cutting : Cut the raw material into the required shapes and sizes using cutting machines or torches.
Forging : Heat the material and forge it into the flange shape, ensuring it meets the specifications for the larger and smaller diameters of the reducing flange.
Forming : Form the flange to achieve the desired dimensions and thickness, accommodating the reduction in size from one end to the other.
Machining : Machine the flange to precise tolerances using CNC machines, ensuring smooth surfaces and accurate dimensions. This includes creating the bolt holes and ensuring the flange faces are flat and aligned.
Drilling Bolt Holes : Drill bolt holes into the flange according to standards such as ANSI B16.5 or customer specifications, ensuring proper alignment for connection with mating flanges.
Surface Finishing : Perform surface treatments such as grinding, polishing, or coating to enhance corrosion resistance and aesthetics.
Inspection and Testing : Conduct thorough inspection and testing, including dimensional checks and non-destructive testing (NDT) methods like ultrasonic testing, to ensure quality and reliability.
Marking and Packaging : Mark the reducing flange with relevant information such as material grade, size, pressure rating, and standards compliance. Package the flanges carefully to protect them during transportation.

Features of Reducing Flange :

Size Reduction : Designed to connect pipes of different diameters, facilitating a seamless transition between larger and smaller pipes in a piping system.
Versatility : Suitable for a wide range of applications and industries where size transitions in piping are required, such as oil and gas, chemical processing, and water treatment.
Ease of Installation : Allows for straightforward installation and alignment, ensuring a secure connection between pipes of varying sizes.
Pressure Ratings : Available in various pressure ratings to suit different industrial applications, from low to high-pressure systems.
Corrosion Resistance : Manufactured in materials with excellent corrosion resistance properties, ensuring durability in harsh environments.
Standards Compliance : Designed and manufactured in compliance with international standards (e.g., ANSI, ASME, ASTM) to ensure quality, reliability, and compatibility with other flange components.
Cost-Effective Solution : Offers a cost-effective method for reducing pipe size within a piping system, eliminating the need for additional fittings or adaptors.
Wide Range of Sizes : Available in a variety of sizes to accommodate different pipe diameters and system requirements.
Structural Integrity : Provides a robust and reliable connection that maintains the structural integrity of the piping system.

Application Of Reducing Flange

Oil and Gas Industry	Used in pipelines and refineries to connect pipes of varying sizes, facilitating efficient transport of oil, gas, and other hydrocarbons. Essential for managing flow rates and pressures in complex pipeline networks.
Chemical Processing	Utilized in chemical plants where different pipe sizes are needed to handle various chemical substances, ensuring proper flow and preventing leaks in corrosive environments.
Power Generation	Found in power plants to connect different sections of piping systems, ensuring efficient flow of water, steam, or other fluids. Used in both fossil fuel and nuclear power plants to manage different flow requirements.
Water Treatment	Used in water treatment facilities to connect pipes of different diameters, ensuring smooth and efficient water flow. Essential for managing different stages of water purification and distribution.
Pulp and Paper Industry	Facilitates transitions in pipelines within paper mills and pulp processing facilities, where varying pipe sizes are common to handle different processing stages and fluid types.
Food and Beverage Processing	Enables smooth transitions in piping systems used for processing and transporting food and beverage products. Helps in maintaining hygiene and preventing contamination.
Pharmaceutical Industry	Used in pharmaceutical manufacturing facilities to connect pipes of varying diameters while maintaining sterile conditions. Ensures precise flow control and cleanliness.
Mining and Mineral Processing	Facilitates connections in pipelines used for transporting minerals and ores in mining operations. Helps in managing flow rates and handling abrasive materials.
Construction and Infrastructure	Found in building HVAC (heating, ventilation, and air conditioning) systems and municipal infrastructure projects for efficient fluid distribution. Used in connecting different pipe sizes in plumbing and drainage systems.
Shipbuilding and Marine Applications	Used in shipbuilding for piping systems where different pipe sizes need to be connected to ensure efficient operation at sea. Essential for managing various fluids and gases in marine environments.
General Industrial Applications	Employed in various industrial applications where pipe size reduction is needed to accommodate different equipment, flow rates, or system requirements.

Reducing Flange Available Types

Reducing Flange	Reducing Flange Threaded
Stainless Steel Reducing Flange	Forged Steel Raised Face Reducing Flange
Carbon Steel Reducing Flange	ANSI B16.47 Reducing Flange
Alloy Steel Reducing Flange	Class 150 LBS Reducing Flange Stockiests
Nickel Alloy Reducing Flange	MSS SP44 Reducing Flange
Inconel Reducing Flange	Class 300 LBS Reducing Flange
Alloy Steel Reducing Flange Exporters	Class 600 LBS Reducing Flange
Duplex Steel Reducing Flange	DIN / EN Reducing Flange Manufacturers
Titanium Alloy Reducing Flange	ASME / ANSI B16.5 Reducing Threaded Flange
Super Duplex Steel Reducing Threaded Flange	ANSI / ASME Reducing Flange Suppliers
Copper Nickel Reducing Flange	High Quality Reducing Flange Exporters

Others Products

Frequently Asked Questions

Most frequent questions and answers

A reducing flange is a type of flange designed to connect pipes of different diameters. It features a flange face with a smaller diameter on one side and a larger diameter on the other, allowing for a transition between pipes of different sizes. Reducing flanges are used to accommodate changes in pipe dimensions while providing a secure and reliable connection.

Reducing flanges are available in a range of sizes to match different pipe diameters and flange standards. Standard sizes cover a wide range of diameters, and custom sizes and specifications can be manufactured to meet specific needs.

Reducing flanges are installed by aligning the flange with the pipes to be connected. The smaller and larger diameters of the flange must be properly matched with the corresponding pipe sizes. The flange is then bolted into place using bolts and a gasket to ensure a leak-proof seal. Proper alignment and tightening are crucial for a secure connection.

Yes, we offer custom manufacturing solutions for reducing flanges to meet specific requirements. Please contact us with your detailed specifications, and we will work with you to produce flanges tailored to your needs.

The lead time for reducing flanges depends on the complexity and volume of the order. After reviewing your specifications, we will provide an estimated lead time. We are committed to delivering all projects on schedule while maintaining the highest quality standards.

Yes, reducing flanges can be used for both liquid and gas applications, provided they are made from appropriate materials and installed correctly to handle the specific conditions of the system, including pressure and temperature.

Reducing flanges are made from various materials, including carbon steel, stainless steel, alloy steel, and other metals. The choice of material depends on the specific requirements of the application, such as the type of fluid or gas, temperature, pressure, and environmental conditions.

Reducing flanges are used in various industries, including oil and gas, petrochemical, water treatment, and construction. They are essential for connecting pipes of different sizes, allowing for smooth transitions and maintaining the integrity of the piping system.

Reducing flanges are manufactured to comply with various industry standards, such as ASME B16.5, ASME B16.47, and API standards. These standards define the dimensions, tolerances, and material requirements to ensure compatibility and reliability in piping systems.

Reducing flanges offer several advantages, including:

Seamless transition: Allows for smooth changes between different pipe sizes.
Ease of installation: Provides a straightforward method for connecting pipes of varying diameters.
High strength and durability: Made from robust materials to handle high-pressure and temperature conditions.
Compliance with standards: Ensures quality and reliability in piping systems.

Regular inspection of reducing flanges involves checking for leaks and ensuring that the flange remains securely bolted. It is important to inspect for any signs of corrosion, wear, or damage that could affect the integrity of the connection.