Best Nipo & Weldo Flange Solutions

Prayag Precitech specializes in the production and export of high-quality Weldo/Nipo flanges, designed as a unique combination of a Welding Neck flange and a Weldolet or Nipolet. These flanges provide both welding and flange connections, customized to meet specific client needs across diverse industries.

Our Weldo Flanges are crafted from top-grade materials using advanced forging techniques to ensure exceptional durability and performance. Rigorous quality checks at every production stage ensure these flanges meet national and international standards, withstanding temperatures as high as 870°C while maintaining strength and corrosion resistance. The Reinforced Nipo Flange, featuring a robust nickel alloy construction, is especially noted for its strength, making it ideal for demanding applications like seawater cooling systems, electrostatic precipitators, oil refineries, acetic acid production, and architectural structures.

Carbon Steel Weldo/Nipo Flanges

• Size: 1/2″ NB to 80″ NB
• Standards: ANSI/ASME B16.5, B16.47, DIN, JIS, UNI, BS10, API
• Class: 150# to 2500#
• Materials: ASTM A105, P235GH, P245GH
• Services: Hot Dip Galvanizing, Sand Blasting, Special Threading

Alloy Steel & Low-Temperature Carbon Steel

• Size: 1/2″ NB to 80″ NB
• Materials: ASTM A182 (Alloy Steel F5, F11), LTCS A350 LF2

Stainless & Duplex Steel

• Size:1/2″ NB to 64″ NB
• Grades: 304, 316, 321, 904L; Duplex ASTM A182 F-51, F-53

Nickel Alloys & Specialty Metals

• Size: 1/2″ NB to 48″ NB
• Nickel Alloys: Copper Nickel, Monel, Inconel, Hastelloy, Titanium

Prayag Precitech’s Weldo and Nipo Flanges are expertly engineered to offer unmatched durability, reliability, and performance across various challenging applications.