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Weldo / Nipo Flanges

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Technolloy Inc manufactures and supplies Weldo / Nipo Flanges engineered for reliable branch connections, piping assemblies, pressure systems, and demanding industrial applications. These specialized flanges combine a compact branch outlet configuration with a flanged connection, providing a practical solution where piping systems require secure attachment, controlled flow, and dependable pressure performance. Weldo Flanges and Nipo Flanges are available in a range of materials, sizes, pressure classes, and specifications to meet the requirements of process plants, refineries, power facilities, chemical units, petrochemical installations, and general industrial piping.

What Are Weldo / Nipo Flanges?

Weldo / Nipo Flanges are branch connection components designed to connect a branch pipe to a main header or pipeline while providing a flanged end for convenient equipment or piping connection. A Weldo Flange generally incorporates a weld outlet with a flange, while a Nipo Flange combines a nipple-type branch connection with a flanged end. Their configuration helps reduce the need for multiple separate fittings and can provide a compact, robust connection for high-pressure and high-temperature piping systems.

The design of Weldo / Nipo Flanges makes them suitable for systems where dimensional accuracy, structural integrity, and dependable sealing are important. They can be manufactured from stainless steel, carbon steel, alloy steel, duplex steel, super duplex steel, nickel alloys, and other engineering materials according to service conditions. Dimensions and specifications can be produced according to recognized standards and customer drawings, helping engineers select a flange suitable for pressure, temperature, media, and installation requirements.

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Weldo / Nipo Flanges Manufacturers, Weldo / Nipo Flanges Suppliers, Weldo / Nipo Flanges Stockists, Weldo / Nipo Flanges Exporters

Advantages of Weldo / Nipo Flanges?

Weldo / Nipo Flanges are designed to provide strong branch connections capable of handling demanding mechanical and pressure loads. Suitable material selection, controlled manufacturing, and accurate machining contribute to structural reliability in piping systems exposed to pressure, vibration, thermal cycling, and operational stresses.

When manufactured from corrosion-resistant grades such as stainless steel, duplex steel, super duplex steel, or nickel alloys, Weldo / Nipo Flanges can offer excellent resistance to oxidation, chemical attack, pitting, and stress-related deterioration. This makes them valuable for piping systems carrying aggressive fluids or operating in humid, saline, or chemically demanding environments.

Durability is a key advantage of Weldo / Nipo Flanges in industrial piping applications. Their robust construction supports dependable service under repeated operating cycles, temperature fluctuations, and mechanical loading. Proper material and specification selection can help extend component service life and reduce the frequency of replacement.

Precision machining allows Weldo / Nipo Flanges to achieve accurate dimensions, smooth mating surfaces, and consistent flange geometry. Good machinability also supports reliable fabrication, drilling, facing, and installation while helping manufacturers maintain close dimensional tolerances required for engineered piping systems.

Weldo / Nipo Flanges can provide cost efficiency by combining branch outlet and flanged connection functions into a practical component. Their compact construction can simplify fabrication and installation, while dependable performance can help reduce maintenance requirements and unplanned downtime over the operating life of a piping system.

With the correct material grade, pressure class, dimensions, and surface finish, Weldo / Nipo Flanges can deliver consistent long-term performance in demanding industrial environments. Their engineered configuration supports secure connections and efficient maintenance, making them a dependable choice for new installations as well as piping modifications and expansions.

Weldo / Nipo Flanges Manufacturers in India, Weldo / Nipo Flanges Suppliers in India, Weldo / Nipo Flanges Stockists in India, Weldo / Nipo Flanges Exporters in India

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Uses and Applications of Weldo / Nipo Flanges?

The oil and gas industry uses Weldo / Nipo Flanges Manufacturers for branch connections in pipelines, gathering systems, processing units, and hydrocarbon handling facilities where reliable pressure containment and secure flanged connections are essential.

Petrochemical processing facilities require durable components for systems handling hydrocarbons, solvents, chemicals, and high-temperature process fluids. Weldo / Nipo Flanges Suppliers provide configurations suitable for process piping, equipment connections, branch outlets, and maintenance-oriented piping arrangements.

Power plants use these flanges in steam, condensate, cooling water, feedwater, and auxiliary piping systems. Weldo / Nipo Flanges Stockists support project and maintenance requirements by providing components in suitable carbon steel, alloy steel, stainless steel, and other grades for demanding operating conditions.

Chemical processing plants depend on corrosion-resistant piping components for the safe movement of acids, alkalis, solvents, and other process media. Weldo / Nipo Flanges Exporters can provide material-specific flange solutions designed around the corrosion, pressure, and temperature requirements of international chemical processing projects.

Refineries use Weldo / Nipo Flanges for branch connections throughout crude processing, fuel handling, separation, and utility piping networks. Their compact configuration is useful where space, connection reliability, and efficient piping fabrication are important considerations.

Water treatment, wastewater, and desalination facilities use these components in process water, seawater, chemical dosing, filtration, and utility piping. Corrosion-resistant material options can provide dependable performance in environments exposed to moisture, salts, and treatment chemicals.

Weldo / Nipo Flanges are also used by engineering contractors and fabrication companies for customized piping assemblies, skid systems, pressure lines, equipment connections, and plant modifications. Their availability in different sizes and material grades makes them adaptable to varied project specifications.

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Weldo / Nipo Flanges Manufacturers in Mumbai, Weldo / Nipo Flanges Suppliers in Mumbai, Weldo / Nipo Flanges Stockists in Mumbai, Weldo / Nipo Flanges Exporters in Mumbai

Quality and Manufacturing Excellence

Technolloy Inc focuses on supplying engineered flange solutions for industrial buyers, piping contractors, fabrication companies, and process industries. Product requirements can be matched to material grade, dimensions, pressure class, quantity, application, and applicable standards. This approach helps buyers obtain Weldo / Nipo Flanges suited to their operating environment rather than relying on a one-size-fits-all configuration.

Technolloy Inc can manufacture Weldo / Nipo Flanges in materials selected according to operating conditions and project specifications. Common material options include carbon steel, stainless steel, alloy steel, duplex stainless steel, super duplex stainless steel, and nickel-based alloys. Depending on the application, components can be manufactured to relevant ASME, ANSI, ASTM, MSS, and other applicable international specifications, with dimensions, pressure ratings, bore requirements, facing types, and tolerances determined by the project requirement.

The price of Weldo / Nipo Flanges depends on material grade, nominal size, pressure rating, flange configuration, machining requirements, standards, quantity, testing, and delivery location. An indicative reference price may start around USD 25 per piece for selected standard configurations, while customized or high-alloy products can be substantially higher. Final pricing is provided according to the exact customer specification and order quantity.

Specification of Weldo / Nipo Flanges?

Size: 1/2"NB TO 24"NB IN
Class: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc.
Materials: Monel :
Grade: Monel 400, Monel K500, Monel R-405
Nickel :
Grade: Nickel 200, Nickel 201
Inconel :
Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
Incoloy :
Grade: Incoloy 800, Inconel 800H, 800HT
Hastalloy :
Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
Titanium :
Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11
Stainless Steel :
Grade: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Carbon Steel :
Grade: 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
Duplex Steel:
Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61
Alloy Steel:
Grade : ASTM A182 F1, F5, F9, F11, F22, F91
Value Added Service: CNC Machine, Customized Flanges
Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Dimension of Weldo / Nipo Flanges?

Size Flange Barrel OD Bolting Nut Stud Bolt Weights Length
Nom Bore LWN & E Bore HB OD Thk. RF of OD LWN HB E # of Holes Hole Size Bolt Circle Stop Dia Relief Dia Relief Length Size RF Length RTJ Length LWN HB E Base
B  B O  T R  D D D C NS NR NL Base Per  1" Base Per 1" Base Per  1" L 
 1/2 0.5 0.55 3.5 0.44 1.38 1.25 1.5 3.5 4 0.62 2.38 1.5 1.25 0.75 1/2  2 1/4 2 3/4 3 0.3 5 0.4 21 2.7 9
 3/4 0.75 0.74 3.88 0.5 1.69 1.62 1.88 3.88 4 0.62 2.75 1.88 1.62 0.75 1/2  2 1/2 3 5 0.5 7 0.7 27 3.2 9
1 1 0.96 4.25 0.56 2 2 2.25 4.25 4 0.62 3.12 2.25 2 0.75 1/2  2 1/2 3 7 0.7 10 0.9 30 3.8 9
1 1/4 1.25 1.28 4.62 0.62 2.5 2.38 2.62 4.62 4 0.62 3.5 2.62 2.38 0.75 1/2  2 3/4 3 1/4 10 0.9 12 1.2 36 4.4 9
1 1/2 1.5 1.5 5 0.69 2.88 2.62 3 5 4 0.62 3.88 3 2.62 0.75 1/2  2 3/4 3 1/4 12 1 16 1.5 41 5.1 9
2 2 1.94 6 0.75 3.62 3.06 3.69 6 4 0.75 4.75 3.69 3.06 0.88 5/8  3 1/4 3 3/4 15 1.2 23 2.2 57 7.1 9
2 1/2 2.5 2.32 7 0.88 4.12 3.75 4.44 7 4 0.75 5.5 4.44 3.75 0.88 5/8  3 1/2 4 22 1.7 34 3.2 79 10 9
3 3 2.9 7.5 0.94 5 4.25 4.94 7.5 4 0.75 6 4.94 4.25 0.88 5/8  3 1/2 4 1/4 25 2 38 3.6 86 11 9
3 1/2 3.5 3.36 8.5 0.94 5.5 4.88 5.94 8.5 8 0.75 7 5.94 4.88 0.88 5/8  3 1/2 4 1/4 32 2.6 55 5.3 110 13 9
4 4 3.83 9 0.94 6.19 5.5 6.44 9 8 0.75 7.5 6.44 5.5 0.88 5/8  3 1/2 4 1/4 47 3.2 78 6 164 14 12
5 5 4.81 10 0.94 7.31 6.50 7.25 10 8 0.88 8.5 7.25 6.50 1 3/4  3 3/4 4 1/2 57 3.8 87 6.50 189 17 12
6 6 5.76 11 1 8.5 7.75 8.25 11 8 0.88 9.5 8.25 7.75 1 3/4  4 4 1/2 75 5.4 103 7.8 216 19 12
8 8 7.62 13.5 1.12 10.62 9.75 10.5 13.5 8 0.88 11.75 10.5 9.75 1 3/4  4 1/4 4 3/4 102 6.9 157 11 292 26 12
10 10 9.56 16 1.19 12.75 12 12.81 16 12 1 14.25 12.81 12 1.12 7/8  4 3/4 5 1/4 143 9.8 214 16 382 35 12
12 12 11.38 19 1.25 15 14.38 15.56 19 12 1 17 15.56 14.38 1.12 7/8  4 3/4 5 1/2 205 14 329 25 535 48 12
14 14 14 21 1.38 16.25 16 17.12 21 12 1.12 18.75 17.12 16 1.25 1 5 1/4 6 211 13 296 22 585 55 12
16 16 16 23.5 1.44 18.5 18 19.62 23.5 16 1.12 21.25 19.62 18 1.25 1 5 1/2 6 246 15 388 29 714 66 12
18 18 18 25 1.56 21 20 20.94 25 16 1.25 22.75 20.94 20 1.38 1  1/8 6 6 1/2 270 17 362 25 711 67 12
20 20 20 27.5 1.69 23 22 23.19 27.5 20 1.25 25 23.19 22 1.38 1  1/8 6 1/4 7 311 19 434 31 840 79 12
24 24 24 32 1.88 27.25 26.25 27.5 32 20 1.38 29.5 27.5 26.25 1.5 1  1/4 7 7 3/4 423 25 574 40 1046 100 12

Application Of Industries

Power Plants
1
Aerospace
2
Refineries
3
Construction
4
Import Export
5
Oil & Gas
6
Sugar
7
Chemical
8
Petrochemical
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Frequently Asked Questions

Weldo / Nipo Flanges are used for branch connections in industrial piping systems, including oil and gas, petrochemical, chemical processing, power generation, water treatment, and general process applications.

Weldo / Nipo Flanges can be manufactured in carbon steel, stainless steel, alloy steel, duplex steel, super duplex steel, nickel alloys, and other materials according to application and customer requirements.

Yes, Weldo / Nipo Flanges can be manufactured according to applicable ASME, ANSI, ASTM, MSS, and other recognized specifications, subject to the required product configuration and project standard.

Price depends on material, size, pressure class, flange type, machining, applicable standards, quantity, testing requirements, and delivery location. Customized specifications may have different pricing from standard configurations.

Technolloy Inc serves industrial buyers requiring Weldo / Nipo Flanges for domestic and international projects, with product specifications, documentation, packaging, and delivery arrangements determined according to customer requirements.

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