Expanding Flange Manufacturer
Best Expanding Flange Manufacturer in India since 1971.
Table of Contents
Teshi Group: Leading Manufacturer, Stockist, Supplier, and Exporter of Expanding Flanges in India.
Teshi Group, with over a decade of experience in the industry, is a renowned manufacturer, stockist, supplier, and exporter of Expanding Flanges in India. We have established ourselves as a trusted name by providing high-quality, precision-engineered flanges that cater to the diverse needs of various industries, including oil and gas, chemical, petrochemical, power generation, and more. Our Expanding Flanges are designed to meet the most stringent standards, ensuring reliable and secure connections between pipes of varying diameters. These flanges are manufactured from premium materials, such as stainless steel, carbon steel, and high-nickel alloys, offering exceptional strength, corrosion resistance, and durability. Our range of Expanding Flanges is available for pipelines with nominal diameters ranging from 40 mm to 1000 mm, with custom sizes available upon request to meet specific requirements. As an ISO-certified company, we are committed to delivering products that comply with international standards, including ASME/ANSI B16.5, ASME/ANSI B16.47, and other relevant specifications. Teshi Group specializes in producing Stainless Steel Expander Flanges in various grades, such as ASTM A182 Grade 304, 304L, 316, 316L, 316H, and 904L, among others. In addition to Expanding Flanges, we offer a wide variety of flange types, including Slip-on, Socket Weld, Blind, Weldneck, Threaded, Lap, Long Weldneck, Spectacle Blind, Plate, Ring, Tongue and Groove, and Reducing Flanges, ensuring we meet the diverse requirements of our clients. Equipped with cutting-edge plasma finishing technology, our production facility ensures the highest levels of precision, quality, and consistency in every product we manufacture. This commitment to excellence, coupled with our dedication to customer satisfaction, has positioned Teshi Group as one of India’s leading manufacturers and exporters of Expanding Flanges, with a robust global supply chain that guarantees timely deliveries without compromising on quality. Whether for standard or custom applications, Teshi Group remains the trusted partner for all your Expanding Flange needs.
About Expanding Flanges :-
Expanding flanges are specialized pipe flanges designed for applications where there is a need to connect pipes of varying diameters or sizes. They are widely used in industries such as oil and gas, petrochemical, power generation, and marine, where robust and flexible piping systems are essential. The key characteristic of expanding flanges is their ability to allow a transition between pipes with different outside diameters. These flanges feature a tapered bore, enabling the joining of pipes with different sizes without the need for additional components like reducers or adapters.
Manufactured from high-strength materials such as carbon steel, stainless steel, or alloy steel, expanding flanges offer superior resistance to pressure, temperature fluctuations, and corrosion, making them ideal for both high-pressure and high-temperature systems. They are commonly used in scenarios where a pipeline needs to be expanded gradually from a smaller size to a larger size, facilitating smoother flow transitions and minimizing turbulence. The design typically includes a bolt hole pattern that matches standard flange types, ensuring easy integration with other pipe fittings or components in a system.
The installation of expanding flanges is relatively straightforward, as they do not require complex welding or machining on-site, reducing labor costs and downtime. They are secured by bolts, providing a reliable and leak-proof seal between pipes. Due to their versatility, expanding flanges are also used in situations where modifications to the piping system may be required in the future, offering a cost-effective solution to adjust the system’s capacity or functionality. This adaptability, combined with their durability and ease of installation, makes expanding flanges a popular choice for industries seeking efficient and flexible pipeline solutions.
Teshi Group is an ISO certified expanding flange manufacturer & distributor in India
Dimensions of Expanding Flanges
Standard Specification Of Expanding Flange
Standard Specifications |
Dimensions
|
ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
|
|---|---|
|
Size
|
1/2" (15 NB) to 48" (1200NB)
|
|
Class
|
150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
|
|
DIN
|
DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636,DIN 2637, DIN 2638, DIN 2673
|
|
BS
|
: BS 4504 , BS 4504, BS 1560, BS 10
|
|
PN
|
PN6, PN10, PN16, PN25, PN40
|
|
Flange Face Type
|
Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
|
Material & Grades of Expanding Flange
Material & Grades |
Stainless Steel Expander Flange
|
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
|
|---|---|
|
Carbon Steel Expander Flange
|
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70
|
|
Alloy Steel Expander Flange
|
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
|
|
Duplex Steel Expander Flange
|
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
|
|
6% Moly / Super Duplex Expander Flange
|
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
|
|
Low Temperature Steel Expander Flange
|
ASTM A350 LF2, LF3, LF6
|
|
High Yield Expander Flange
|
ASTM A694 F42, F52, F60, F65, F70
|
|
Nickel Alloys Expander Flange
|
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)
|
|
Copper Alloys Expander Flange
|
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
|
|
Alloys Expander Flange
|
ALLOY 20, ALLOY C, ALLOY C276, ALLOY B2
|
|
Other Grade of Expander Flange
|
Bronze, Brass, Cupro Nickel, Titanium, Inconel, Monel, Hastelloy
|
Application Of Expanding Flange
Sl |
Application |
1
|
ANSI B16.5 Class 150 Expander Flanges uses in Industrial Boilers Industry
|
|---|---|
|
2
|
ASTM A182 Stainless Steel Expander Flanges uses in Power Plants Industry
|
|
3
|
ASME B16.47 Series A and B Expander Flanges uses in Nuclear Plants Industry
|
|
4
|
Stainless Steel Expander Flanges uses in Oil & Gas Industry
|
|
5
|
Super Duplex Steel Expander Flanges uses in Refineries Industry
|
|
6
|
Industrial Expander Flanges uses in Ship Building Industry
|
|
7
|
Super Duplex Steel Expander Flange Forged Flanges uses in Heat Exchanger Industry
|
|
8
|
Carbon Steel Industrial Expander Flanges uses in Condensers Industry
|
|
9
|
Alloy Steel Industrial Expander Flanges uses in Paper & Pulp Industry
|
|
10
|
Duplex Steel Industrial Expander Flanges uses in Marine Applications
|
|
11
|
Stainless Steel Industrial Expander Flanges uses in Nuclear Power Industry
|
|
12
|
Industrial Expander Flange / Fittings System uses in Fossil Fuel Power Plants Industry
|
Teshi Group Is A Leading Supplier Of Expanding Flange in India
We supply expanding flange to Agra, Ahmedabad, Ajmer, Aligarh, Allahabad, Ambattur, Amravati, Amritsar, Asansol, Aurangabad, Bangalore, Bareilly, Belgaum, Bhavnagar, Bhilai Nagar, Bhiwandi, Bhopal, Bhubaneswar, Bikaner, Chandigarh, Chennai, Coimbatore, Cuttack, Dehradun, Delhi, Dhanbad, Durgapur, Faridabad, Firozabad, Gaya, Ghaziabad, Gorakhpur, Gulbarga, Guntur, Gurgaon, Guwahati, Gwalior, Haora, Hubli and Dharwad, Hyderabad, Indore, Jabalpur, Jaipur, Jalandhar, Jalgaon, Jammu, Jamnagar, Jamshedpur, Jhansi, Jodhpur, Kalyan & Dombivali, Kanpur, Karnataka, Kochi, Kolapur, Kolkata, Kota, Loni, Lucknow, Ludhiana, Madurai, Maheshtala, Malegoan, Mangalore, Meerut, Mira, Bhayander, Moradabad, Mumbai, Nagpur,Nanded Waghala, Nashik, Navi Mumbai, Nellore, Noida, Patna, Pimpri & Chinchwad, Pune, Raipur, Rajkot, Ranchi, Saharanpur, Salem, Sangli Miraj Kupwad, Siliguri, Solapur, Srinagar, Surat, Thane, Thiruvananthapuram, Tiruchirappalli, Tirunelveli, Udaipur, Ujjain, Ulhasnagar, Vadodara, Varanasi, Vasai Virar, Vijayawada, Visakhapatnam, Warangal.
Expanding Flange Exporter to all major cities in the world
We export expanding flange to Seoul, Hanoi, Los Angeles, Rio de, Houston, York, Dammam, Al-Khobar, Bogota, Al-Jubail, Chiyoda, Abu Dhabi, Kuwait Santiago, Perth, Busan, London, Jakarta, Surat, Courbevoie, Dallas, Calgary, Mexico Muscat, Aberdeen, City, Edmonton, Riyadh, Caracas, Ahvaz, Brisbane, Moscow, Milan, Manama, Ulsan, Jaya, Granada, Vung Petaling, Melbourne, Montreal, Port-of-Spain, La Victoria, Istanbul, Janeiro, Karachi, New Singapore, Madrid, Lagos, Atyrau, Sydney, Kuala Dubai, City, Bangkok, Toronto, Gimhae-si, Lumpur, Jeddah, Pimpri-Chinchwad, Tehran, Doha, Ho-Chi-Minh-City, Algiers, Tau, Colombo, Ernakulam, Geoje-si, Cairo, Sharjah, Lahore.
Teshi exports Expanding Flanges in more than 50 countries. We have shipments going out monthly to different countries for our newly acquired customers. Our ready stock of Flanges helps us ship the Flange and meet the requirement and demands of our customers as fast as possible.
We Export Expanding Flange to United States (USA), Canada, Germany, Japan, France, Middle-East, Bangladesh, Nepal etc.
Product
Export
Frequently Asked Questions
Most frequent questions and answers
What are expanding flanges?
An expanding flange is a type of flange that is used to connect two pipes together. It is designed with a split in the flange that allows it to expand and contract as the temperature of the pipeline changes. This allows the flange to accommodate thermal movement in the pipeline without causing leaks or damage.
What are expanding flanges used for?
Expanding flanges are used to connect two pipes together in situations where thermal expansion and contraction may occur. They are typically used in pipelines that carry hot fluids or gases.
How are expanding flanges attached to pipes?
Expanding flanges are typically attached to pipes using bolts and nuts. The flange is placed over the end of the pipe, and the bolts are tightened to create a tight seal. The split in the flange allows it to expand and contract as the temperature changes.
What materials are expanding flanges made of?
Expanding flanges can be made of a variety of materials, including carbon steel, stainless steel, and alloy steel. The choice of material will depend on the specific application and the conditions the flange will be exposed to.
What are the benefits of using Expanding Flanges?
Expanding flanges offer several benefits, including:
- Simplified installation for varying pipe sizes.
- Elimination of the need for additional reducers or transitions.
- Cost savings in both materials and labor.
- Enhanced system stability and reduced risk of leaks.
Are Expanding Flanges available in standard sizes?
Yes, expanding flanges are available in standard sizes according to ANSI, ASME, and other international standards. They typically range from sizes DN 15 (1/2″) up to DN 600 (24″) or more, depending on the manufacturer. Custom sizes are also available for specific project requirements.
How do Expanding Flanges compare to reducers?
While both expanding flanges and reducers are used to transition between different pipe sizes, expanding flanges provide a flange connection on both ends, making them easier to install without additional connectors. They also save space by eliminating the need for a separate reducer fitting.
What pressure ratings are available for Expanding Flanges
Expanding flanges are available in a range of pressure ratings, typically from 150 to 2500 pounds per square inch (PSI). The exact pressure rating depends on the flange’s size, material, and design, and should be selected based on the specific requirements of the application.
How are Expanding Flanges installed?
Expanding flanges are installed in much the same way as standard flanges. They are connected to pipes or equipment using bolts and gaskets to ensure a tight seal. Proper alignment, torque control, and gasket selection are essential to avoid leaks and maintain optimal performance.
Can Expanding Flanges be customized?
Yes, expanding flanges can be customized in terms of material, size, pressure rating, and face type (such as raised face, flat face, or ring-type joint). Customization is often necessary for specialized applications where standard flanges may not meet unique project needs.
Are there different types of expanding flanges?
there are different types of expanding flanges, such as single expanding flange and double expanding flange.
Can expanding flanges be used in high pressure or high temperature applications?
Expanding flanges can be used in high pressure and high temperature applications, but they must be made of the appropriate material and be rated for the specific conditions they will be exposed to. It’s also important to consider the size and the material of the flange to match the pipe size and material to make sure the integrity of the connection.
How are expanding flanges maintained?
Expanding flanges should be inspected regularly to ensure that they are in good condition and that the seals are tight. Any damage or leaks should be repaired immediately. The bolts should also be checked and tightened if necessary to ensure that the flange is secure.
How to identify an expanding flange?
Expanding flanges are typically identified by the presence of a split or gap in the flange body which allows the flange to expand and contract. It can also be identified by the presence of a gasket or sealant between the flange and the pipe, which is used to prevent leaks.
How do I choose the right Expanding Flange for my application
To choose the right expanding flange, consider the following factors:
- Pipe sizes you need to connect.
- Pressure and temperature conditions.
- Compatibility with the process fluid.
- Industry standards required (e.g., ASME, ANSI).
- Installation space and alignment requirements.
What maintenance is required for Expanding Flanges?
Regular maintenance, such as inspecting for wear, checking for leaks, and ensuring that bolts and gaskets are in good condition, is essential for expanding flanges. Periodic tightening of bolts may also be necessary to maintain a secure seal, especially in high-vibration environments.
What types of faces are available for Expanding Flanges?
Expanding flanges are available with various face types, including raised face (RF), flat face (FF), and ring-type joint (RTJ). The choice of face type depends on the specific sealing requirements, pressure conditions, and compatibility with the connected flange or equipment. Raised face is commonly used for most applications, while RTJ is preferred for high-pressure environments to provide a leak-proof seal.
Can Expanding Flanges handle corrosive environments?
Yes, expanding flanges can be designed to handle corrosive environments by selecting materials that offer high corrosion resistance, such as stainless steel, duplex steel, or nickel alloys. In highly corrosive applications, coatings or special linings may also be applied to enhance resistance and extend the lifespan of the flange, ensuring reliability in challenging conditions.
