DIN 2656 Flanges – PN 40 Loose Flanges Manufacturer, Exporter & Supplier in India

About Dipti Metal Industries

Founded in 2009 by Mr. Kumpsingh Rajput, Dipti Metal Industries is a leading DIN 2656 manufacturer, DIN 2656 exporter, DIN 2656 supplier, and stockist of DIN 2656 Loose Flanges (Lap Joint Flanges with Plain Collars, PN 40). Under our brand “Dipti”, we supply to over 40 countries worldwide, meeting international quality standards with precision-engineered products.

What Are DIN 2656 Loose Flanges?

DIN 2656 specifies loose flanges (lap joint flanges) with plain collars designed for PN 40 (40 bar) pressure systems. These flanges consist of two components:

• The collar (welded to the pipe)

• The loose flange ring (free to rotate around the collar)

This design allows for easier alignment, rapid assembly, and disassembly—making it ideal for piping systems that require frequent inspection or maintenance.

Terminology in Global Standards

• English: Loose flange and ring for welding – Rated pressure 40

• Spanish: Brida loca y anillo de soldar – Presión nominal 40

• German: Lose Flansche mit glatten Bunden – Nenndruck 40

Technical Specifications

• DIN 2656 Standard: DIN 2656 (similar to EN 1092-1 Type 37, PN 40)

• DIN 2656 Nominal Pressure Rating: PN 40 (40 bar)

• DIN 2656 Size Range: DN 10 to DN 600

• DIN 2656 Design: Rotatable loose flange with plain collar

• DIN 2656 Inspection Certificates: EN 10204 / 3.1 and 3.2 available

• DIN 2656 Manufacturing: Up to DN 250 cold drawn from plate, larger sizes fabricated from welded profiles

Available Materials & International Equivalent Grades

Carbon Steel Grades for DIN 2656 Flanges

• ASTM A105 / A105N (C22.8)

• ASTM A350 LF2 (1.0508)

• ASTM A694 F42–F70

• P250GH (1.0460), S235JR (1.0038), ST37.2 (1.0037)

Alloy Steel Grades for DIN 2656 Flanges

• ASTM A182 F1 / F5 / F9 / F11 / F12 / F22 / F91

• ASTM A335 P1 / P5 / P9 / P11 / P22 / P91

• Chrome Moly 4130, 4140, 4340

Stainless Steel Grades for DIN 2656 Flanges

• ASTM A182 F304 / 304L (1.4301 / 1.4307)

• ASTM A182 F316 / 316L (1.4401 / 1.4404)

• ASTM A182 F310S (1.4845)

• ASTM A182 F317 / 317L (1.4449 / 1.4438)

• ASTM A182 F321 / 321H (1.4541 / 1.4878)

• ASTM A182 F347 / 347H (1.4550 / 1.4961)

• ASTM A182 F904L (1.4539)

Duplex & Super Duplex Stainless Steel for DIN 2656 Flanges

• Duplex 2205 (1.4462 / UNS S31803, S32205)

• Duplex 2304 (1.4362 / UNS S32304)

• Super Duplex 2507 (1.4410 / UNS S32750, S32760)

• Lean Duplex LDX 2101 (1.4162 / UNS S32101)

Nickel & High-Performance Alloys for DIN 2656 Flanges

• Monel 400 / K500 (2.4360 / 2.4375)

• Inconel 600, 625, 718 (2.4816 / 2.4856 / 2.4668)

• Incoloy 800 / 825 (1.4876 / 2.4858)

• Hastelloy C22 / C276 / B2 (2.4602 / 2.4819 / 2.4617)

• Alloy 20 (2.4660)

Titanium & Special Alloys for DIN 2656 Flanges

• Titanium Grades 2 / 5 / 7 / 12

• Nickel 200 / 201 (2.4060 / 2.4066)

• Copper Nickel CuNi 70/30 (2.0882)

• Copper Nickel CuNi 90/10 (2.0872)

Applications of DIN 2656 Flanges

• Oil & Gas pipelines and offshore platforms

• Petrochemical and refinery units

• High-pressure steam and boiler systems

• Marine & shipbuilding industries

• Power generation and nuclear plants

• Desalination & water treatment systems

Major Export Destinations

We proudly export DIN 2656 Loose Flanges (PN 40) worldwide under our Dipti brand. Our major export markets include:

• North America: United States, Canada, Mexico

• Europe: Germany, France, Italy, Spain, UK, Netherlands, Poland, Belgium

• Middle East: Saudi Arabia, UAE, Qatar, Oman, Kuwait, Bahrain

• Asia-Pacific: Japan, South Korea, Singapore, Malaysia, Thailand, Indonesia, Vietnam, Philippines

• South Asia: India, Bangladesh, Sri Lanka, Pakistan, Nepal

• Africa: South Africa, Nigeria, Egypt, Kenya, Ghana

• South America: Brazil, Argentina, Chile, Peru, Colombia, Venezuela, Ecuador, Bolivia

• Oceania: Australia, New Zealand

Key Advantages

• Easy alignment due to rotatable design

• Designed for PN 40 high-pressure service

• Manufactured DIN 2656 in all material grades with EU equivalents

• Supplied DIN 2656 with EN 10204 3.1/3.2 certification

• Global DIN 2656 exports with seaworthy packaging

Why Choose Dipti Metal Industries?

• 🌍 Global DIN 2656 Exporter to 40+ countries

• 🏭 Wide DIN 2656 Stock Range in CS, SS, Duplex, Nickel, Titanium

• ✅ Certified DIN 2656 Quality – ASTM, ASME, EN, ISO, DIN, JIS, IS

• ⚡ DIN 2656 Ready Stock + Custom Sizes available

• 💲 Competitive DIN 2656 Pricing for EPCs, OEMs, and distributors

Conclusion

Dipti Metal Industries is a trusted DIN 2656 Flanges Manufacturer, DIN 2656 Exporter & DIN 2656 Supplier in India, delivering PN 40 loose flanges to clients across DIN 2656 in North America, DIN 2656 in Europe, DIN 2656 in Middle East, DIN 2656 in Asia, DIN 2656 in Africa, and DIN 2656 in South America. With certified quality, wide material availability, and competitive pricing, we ensure global industries receive reliable, durable, and precision-engineered flanges.