Super Duplex Nipoflange Manufacturer & Supplier

A Super Duplex Nipoflange is a specialized forged piping component designed to provide a strong and reliable branch connection between a main pipeline and a smaller branch line. It combines the characteristics of a branch outlet with a flanged connection, making it suitable for piping systems where a secure, compact, and corrosion-resistant connection is required. Manufactured from super duplex stainless steel, these flanges offer a combination of high mechanical strength, excellent corrosion resistance, and good resistance to chloride-containing environments.

Super Duplex Nipoflanges are widely used in demanding industrial applications such as oil and gas, petrochemical processing, chemical plants, offshore platforms, marine systems, desalination plants, power generation, and water treatment facilities. Their ability to withstand aggressive environments and high-pressure service conditions makes them an important component in modern process and industrial piping systems.

What Is a Super Duplex Nipoflange?

A Super Duplex Nipoflange is a forged branch outlet flange manufactured from super duplex stainless steel. It is designed to connect a branch pipe to a larger header or run pipe while providing a flanged connection at the branch end.

The component generally incorporates a branch outlet section and a flange connection in a single forged construction. This design can provide a strong transition between the main pipe and branch piping while reducing the requirement for multiple individual components.

Unlike a conventional flange that is primarily used to connect two pipes or equipment components, a Nipoflange is specifically intended for branch connections. It can be used where a branch line requires a flanged termination for connection to valves, instruments, equipment, or another flanged component.

The use of super duplex stainless steel provides additional benefits in applications where conventional carbon steel or standard stainless steel may not offer sufficient resistance to corrosion or mechanical loading.

Super Duplex Stainless Steel for Nipoflanges

Super duplex stainless steel is a high-alloy stainless steel family that combines an austenitic and ferritic microstructure. This balanced structure provides a combination of properties that are useful for demanding piping applications.

Compared with many conventional austenitic stainless steels, super duplex grades provide high yield strength while also offering strong resistance to localized corrosion. They are particularly valued for applications involving seawater, chlorides, and other aggressive process environments.

The material is commonly selected when a piping system requires both mechanical strength and corrosion resistance. However, the appropriate grade should always be selected according to the actual process conditions, design temperature, pressure, chemical composition of the fluid, and applicable engineering specifications.

Common Material Grades

Super Duplex Nipoflanges can be manufactured from several super duplex grades depending on the required application and applicable standard.

Common grades include:

• UNS S32750
• UNS S32760
• ASTM A182 F53
• ASTM A182 F55

UNS S32750 is commonly known as a 2507-type super duplex stainless steel, while UNS S32760 is another widely used super duplex grade with high alloy content and strong corrosion resistance.

For forged flange applications, ASTM A182 provides specifications for forged or rolled alloy and stainless steel piping components. The exact material designation should be confirmed according to the project specification and applicable standard.

Chemical Composition

The chemical composition of super duplex stainless steel is carefully controlled to achieve the required balance of corrosion resistance, strength, toughness, and microstructure.

Typical alloying elements can include:

• Chromium
• Nickel
• Molybdenum
• Nitrogen
• Manganese
• Silicon
• Carbon
• Iron

Chromium contributes significantly to corrosion resistance, while molybdenum improves resistance to localized corrosion such as pitting and crevice corrosion. Nickel helps maintain the required austenitic phase, and nitrogen contributes to strength and corrosion resistance.

The exact chemical composition varies according to the material grade and applicable material specification. Certified material documentation can be provided to verify the chemical composition when required.

Features of Super Duplex Nipoflange

Super Duplex Nipoflanges are designed for demanding piping applications and offer several important features.

High Mechanical Strength

Super duplex stainless steel has high yield and tensile strength, allowing components to withstand substantial mechanical and pressure loads when properly designed and installed.

Excellent Corrosion Resistance

The material provides strong resistance to general corrosion as well as localized corrosion mechanisms such as pitting and crevice corrosion.

Chloride Resistance

Super duplex grades are particularly suitable for environments containing chlorides. This makes them useful in marine, offshore, desalination, and seawater-related applications.

Resistance to Stress Corrosion Cracking

Super duplex stainless steel generally offers good resistance to chloride-induced stress corrosion cracking under suitable service conditions.

Long Service Life

When the correct grade, design, installation, and operating conditions are maintained, Super Duplex Nipoflanges can provide reliable long-term performance.

Compact Branch Connection

The integrated branch design provides a practical solution for connecting a smaller branch line to a larger pipeline while maintaining a flanged connection.

Types of Super Duplex Nipoflange

Super Duplex Nipoflanges can be supplied in different configurations depending on the piping arrangement and connection requirements.

Raised Face Nipoflange

Raised Face (RF) Nipoflanges have a raised sealing surface around the flange face. They are commonly used with corresponding raised-face flanges and suitable gasket arrangements.

Ring Type Joint Nipoflange

Ring Type Joint (RTJ) Nipoflanges are designed with a special groove that accommodates a metallic ring gasket. They are commonly selected for demanding high-pressure and high-temperature applications where the applicable piping specification calls for an RTJ connection.

Flat Face Nipoflange

Flat Face (FF) configurations have a flat sealing surface and may be used where the mating flange and piping system are designed for a flat-face connection.

Custom Nipoflange

Custom Super Duplex Nipoflanges can be produced according to approved drawings or specific project requirements. Customization may include dimensions, branch sizes, pressure ratings, flange facings, and material requirements.

Super Duplex Nipoflange Applications

Super Duplex Nipoflanges are used in industries where piping systems are exposed to pressure, corrosive fluids, seawater, or demanding environmental conditions.

Oil and Gas Industry

In oil and gas facilities, Nipoflanges can be used for branch connections in process, production, utility, and transmission-related piping systems. Their high strength and corrosion resistance can make them suitable for demanding service conditions.

Offshore Applications

Offshore platforms and facilities are exposed to seawater, humid atmospheres, salt spray, and other corrosive conditions. Super duplex materials are therefore commonly considered for piping components where resistance to chloride-containing environments is important.

Petrochemical Plants

Petrochemical processing systems can involve aggressive chemicals, elevated temperatures, and pressure. Super Duplex Nipoflanges can be used for branch connections in suitable process and utility piping applications.

Chemical Processing

Chemical plants often require piping components that can withstand specific corrosive fluids. Super Duplex Nipoflanges may be selected where their material properties are compatible with the process medium.

Marine Industry

Marine piping systems can be exposed to seawater and chloride-rich conditions. The corrosion resistance of super duplex stainless steel makes it suitable for various marine piping applications.

Desalination Plants

Desalination systems handle seawater and concentrated brine streams that can create highly corrosive conditions. Super duplex materials are commonly used for selected components in these systems when specified by the engineering design.

Water Treatment

Super Duplex Nipoflanges can also be used in water treatment and industrial water systems where corrosion resistance and mechanical strength are required.

Benefits of Using Super Duplex Nipoflange

Choosing a Super Duplex Nipoflange for a suitable piping application can provide several benefits:

• High strength-to-weight performance
• Excellent resistance to pitting corrosion
• Good resistance to crevice corrosion
• Suitable resistance to chloride-containing environments
• Reliable performance in demanding piping systems
• Reduced risk of premature corrosion-related failure when properly specified
• Availability in different pressure classes and sizes
• Compatibility with various flange facing arrangements
• Suitable for standard and customized requirements
• Long-term service potential under appropriate operating conditions

Factors to Consider Before Selection

Selecting the correct Super Duplex Nipoflange requires consideration of several technical factors. The nominal pipe size and branch size should match the piping design. The required pressure class should be selected according to the system’s design pressure and applicable standard.

Operating temperature is also important because material properties and allowable pressures can vary with temperature. The chemical composition of the process fluid should be evaluated to determine whether the selected super duplex grade is suitable for the service environment.

Other factors include flange facing, gasket type, bolting requirements, applicable piping code, welding requirements, inspection requirements, and project-specific documentation.

Proper engineering evaluation is essential for critical applications. The product should be selected according to approved drawings, applicable standards, and the operating conditions of the intended piping system.

Super Duplex Nipoflange Specifications

Super Duplex Nipoflanges are manufactured according to the dimensional, material, pressure, and design requirements of the intended piping system. Specifications can vary depending on nominal pipe size, branch size, pressure class, flange facing, material grade, manufacturing standard, and customer requirements.

The final specification should always be confirmed against the approved engineering drawing, purchase specification, and applicable piping standard.

Super Duplex Nipoflange Dimensions

The dimensions of a Super Duplex Nipoflange depend on the nominal pipe size, branch outlet size, pressure class, flange type, and applicable standard. Important dimensional parameters may include flange outside diameter, flange thickness, bore diameter, bolt-hole diameter, bolt-hole circle, number of bolt holes, branch outside diameter, branch wall thickness, and overall height.

For standard flange dimensions, ASME B16.5 is commonly referenced for applicable nominal sizes and pressure classes. Larger-diameter flanges may fall under ASME B16.47 depending on the design and project requirements.

Dimensional accuracy is important because the Nipoflange must align correctly with the mating flange and connected piping. Incorrect dimensions can create installation difficulties, uneven gasket loading, or alignment problems.

Pressure Classes

Super Duplex Nipoflanges can be supplied in different pressure classes depending on the applicable flange standard and size.

Common pressure classes include:

• Class 150
• Class 300
• Class 600
• Class 900
• Class 1500
• Class 2500

The pressure rating is not determined only by the material grade. It also depends on factors such as flange size, design temperature, applicable standard, flange configuration, and material properties.

For high-pressure applications, the flange class should be selected by qualified engineering personnel according to the applicable piping design code and operating conditions.

Flange Facing Options

The flange facing provides the sealing interface between the flange and its mating component. Super Duplex Nipoflanges can be supplied with different facing configurations depending on the application.

Raised Face (RF)

Raised Face is one of the commonly used flange facing arrangements. The raised sealing surface concentrates gasket pressure over the designated sealing area and is used with a compatible mating flange and gasket.

Ring Type Joint (RTJ)

RTJ Nipoflanges incorporate a machined groove designed to accommodate a metallic ring gasket. This arrangement is often selected for demanding pressure and temperature applications when specified by the piping design.

Flat Face (FF)

Flat Face Nipoflanges have a flat sealing surface and are used with compatible flat-face mating components. The flange and gasket arrangement should be selected according to the applicable engineering requirements.

Manufacturing Process of Super Duplex Nipoflange

Manufacturing a Super Duplex Nipoflange involves several controlled stages to achieve the required dimensions, mechanical properties, surface condition, and material integrity.

1. Raw Material Selection

Certified super duplex stainless steel is selected according to the required grade and applicable material specification. Material traceability is maintained throughout the manufacturing process.

2. Cutting

The selected raw material is cut into suitable sizes for the forging process. Proper preparation helps ensure adequate material distribution during forging.

3. Forging

The prepared material is heated and forged under controlled conditions to form the basic Nipoflange geometry. Forging can help provide a strong and continuous grain structure suitable for demanding piping applications.

4. Heat Treatment

Super duplex stainless steel requires controlled solution heat treatment to achieve the required metallurgical structure and corrosion resistance. The treatment parameters depend on the material grade and applicable specification.

5. Machining

After forging and heat treatment, the component is machined to achieve the required flange dimensions, bore, branch geometry, sealing face, and bolt-hole pattern.

6. Drilling

Bolt holes are drilled and finished according to the applicable dimensional standard and pressure class.

7. Surface Finishing

The flange surfaces are cleaned and finished according to the specified requirements. Proper surface condition is important for sealing and inspection.

8. Inspection

Finished components undergo dimensional and visual inspection. Additional tests can be performed according to customer specifications and applicable standards.

9. Marking

The product may be marked with information such as material grade, size, pressure class, manufacturer’s identification, heat number, and applicable standard.

10. Packing

After final inspection, Nipoflanges are properly protected and packed to prevent damage, contamination, and corrosion during storage and transportation.

Super Duplex Nipoflange Standards

Manufacturing and inspection standards help ensure consistency in dimensions, materials, and product quality. Depending on the application, relevant standards may include:

ASME B16.5

ASME B16.5 covers pipe flanges and flanged fittings within its specified size and pressure-class range. It provides dimensional and pressure-temperature rating requirements for applicable flange products.

ASME B16.47

ASME B16.47 applies to larger-diameter steel flanges within its specified scope. It may be relevant when large-size flange dimensions are required.

ASTM A182

ASTM A182 covers forged or rolled alloy and stainless steel piping components for pressure service. Super duplex flange materials may be supplied under suitable grades within this specification.

MSS SP-97

MSS SP-97 covers integrally reinforced forged branch outlet fittings. Where the Nipoflange design falls within the standard’s scope, its requirements may be considered for the branch outlet portion.

The exact combination of standards depends on the product design and project specification.

Quality Control and Inspection

Quality control is important for Super Duplex Nipoflanges because they are often used in critical piping systems. Inspection requirements can vary according to the application and purchase order.

Typical quality-control activities may include:

• Raw material verification
• Chemical composition testing
• Mechanical property testing
• Heat-treatment verification
• Dimensional inspection
• Visual inspection
• Surface examination
• Positive Material Identification (PMI)
• Ultrasonic Testing (UT), where specified
• Dye Penetrant Testing (PT), where specified
• Hardness testing
• Corrosion-related testing where required

Positive Material Identification

PMI can be performed to verify that the supplied component corresponds to the specified alloy grade. This is particularly useful for high-alloy materials where correct material identification is important.

Dimensional Inspection

Dimensional inspection verifies critical measurements such as flange diameter, thickness, bore, bolt-hole dimensions, branch dimensions, and overall height against the approved specification or drawing.

Non-Destructive Testing

Non-destructive testing methods can be used to identify surface or internal discontinuities without damaging the component. The applicable method and acceptance criteria depend on the project specification and relevant standard.

Material Test Certificate

A Material Test Certificate (MTC) can provide traceability and information about the supplied material. Depending on the applicable requirements, documentation may include:

• Material grade
• Heat number
• Chemical composition
• Mechanical properties
• Heat-treatment information
• Product dimensions
• Applicable material standard
• Inspection results

Additional inspection documentation can be supplied when specified in the purchase order.

Super Duplex Nipoflange Welding Considerations

Although the Nipoflange itself is a forged component, installation may involve welding it to the main pipe or branch piping. Welding of super duplex stainless steel requires controlled procedures because inappropriate welding conditions can affect the balance of the austenitic and ferritic phases and potentially reduce corrosion resistance or toughness.

Qualified welding procedures, suitable filler materials, controlled heat input, appropriate interpass temperature, and competent welding personnel should be used according to the applicable project requirements.

Post-weld inspection may also be required depending on the piping code and service conditions.

Packaging and Storage

Proper packaging helps protect Super Duplex Nipoflanges from mechanical damage and contamination during transportation and storage.

Before dispatch, flange faces and machined surfaces can be protected against scratches and impact. Bolt holes and sealing surfaces should be protected where necessary.

During storage, the components should be kept in a clean and dry environment. Contact with unsuitable carbon-steel contamination or corrosive materials should be avoided where it could affect the surface condition.

Proper identification and traceability should also be maintained so that the material grade, heat number, size, and pressure class can be verified before installation.

Advantages of Super Duplex Nipoflange

Super Duplex Nipoflanges are selected for piping applications where high mechanical strength, corrosion resistance, and reliable branch connections are required. The combination of a forged branch outlet and flange connection provides a practical solution for connecting smaller branch lines to larger piping systems.

Some of the key advantages include:

• High tensile and yield strength
• Excellent resistance to pitting corrosion
• Good resistance to crevice corrosion
• Strong resistance to chloride-containing environments
• Good resistance to chloride-induced stress corrosion cracking
• Suitable for demanding offshore and marine applications
• Reliable performance in high-pressure piping systems
• Availability in multiple pressure classes
• Compatibility with different flange-facing configurations
• Long service potential under suitable operating conditions
• Availability in standard and customized dimensions
• Good resistance to erosion-corrosion in appropriate services

The actual performance of the component depends on correct material selection, design, fabrication, installation, and operating conditions.

Super Duplex Nipoflange Applications by Industry

Oil and Gas

The oil and gas industry uses a wide range of branch connections throughout production, processing, transportation, and utility piping systems. Super Duplex Nipoflanges can be used where high strength and resistance to aggressive fluids are required.

They may be specified for process lines, utility systems, offshore piping, injection systems, and other applications where the selected material is compatible with the service environment.

Offshore Platforms

Offshore facilities are exposed to seawater, salt spray, humidity, and other chloride-rich conditions. Super duplex stainless steel is frequently considered for components that require strong corrosion resistance.

Super Duplex Nipoflanges can be used for suitable branch connections in offshore piping systems, subject to the project’s material and design requirements.

Petrochemical Industry

Petrochemical facilities contain process piping that may operate under elevated pressure and temperature while handling aggressive fluids. Nipoflanges manufactured from super duplex stainless steel can be used for suitable branch connections in process and utility systems.

Chemical Processing

Chemical processing plants require careful material selection because different chemicals can produce different corrosion mechanisms. Super Duplex Nipoflanges may be suitable where the selected grade has adequate resistance to the specific process medium.

Marine Applications

Marine systems commonly involve seawater and chloride exposure. The high alloy content of super duplex stainless steel provides useful resistance to localized corrosion in appropriate marine applications.

Nipoflanges can be used in branch connections for marine piping, cooling-water systems, and other applications where the material is compatible with the service conditions.

Desalination Plants

Desalination plants handle seawater and concentrated brine, creating demanding corrosion conditions. Super duplex stainless steel is used in selected desalination applications because of its corrosion resistance.

Super Duplex Nipoflanges can be incorporated into suitable branch piping systems, including seawater and process-water services.

Power Generation

Power plants contain extensive process, cooling-water, utility, and auxiliary piping networks. Super Duplex Nipoflanges may be used in applications where their strength and corrosion resistance provide a suitable material solution.

Water Treatment

Industrial water-treatment systems can involve chlorides, chemicals, and other potentially corrosive conditions. Super Duplex Nipoflanges can be considered for appropriate piping systems where their material characteristics match the operating environment.

Super Duplex Nipoflange vs Conventional Stainless Steel Nipoflange

The choice between super duplex and conventional stainless steel depends on the operating conditions and project requirements.

Super duplex stainless steel generally offers higher mechanical strength and improved resistance to localized corrosion compared with many conventional austenitic stainless steel grades.

However, material selection should not be based solely on strength or corrosion resistance. Factors such as temperature, chemical composition, fabrication requirements, welding procedures, availability, and overall project cost should also be considered.

For applications involving high chloride exposure or demanding mechanical requirements, super duplex may be considered where its properties provide an appropriate technical solution.

Super Duplex Nipoflange vs Duplex Nipoflange

Duplex and super duplex stainless steels both contain a mixed austenitic-ferritic microstructure. Super duplex grades generally contain higher alloying levels and are designed to provide enhanced resistance to localized corrosion and higher mechanical strength compared with standard duplex grades.

A super duplex Nipoflange may therefore be selected for more demanding environments where the additional material performance is required.

The final selection should always be based on engineering calculations, corrosion evaluation, operating conditions, and project specifications.

How to Choose the Right Super Duplex Nipoflange

Selecting the correct Nipoflange requires more than simply choosing the material grade. The complete piping application should be evaluated.

1. Determine Pipe Size

The main pipe size and branch pipe size must be identified accurately. The flange dimensions and branch outlet geometry should correspond to the piping design.

2. Confirm Pressure Rating

The required pressure class should be determined from the system’s design pressure, temperature, applicable standard, and piping code.

3. Select the Material Grade

UNS S32750 and UNS S32760 are common super duplex options. The appropriate grade should be selected according to corrosion conditions and project specifications.

4. Select the Flange Facing

RF, RTJ, or FF should be selected according to the mating flange and required sealing arrangement.

5. Consider Operating Temperature

Pressure-temperature ratings and material properties should be evaluated for the intended operating temperature.

6. Evaluate the Process Fluid

The chemical composition and concentration of the process medium should be reviewed to ensure that the selected material provides suitable corrosion resistance.

7. Confirm Applicable Standards

The required manufacturing, dimensional, material, and inspection standards should be established before placing the order.

8. Specify Inspection Requirements

Critical projects may require PMI, UT, PT, hardness testing, dimensional inspection, or other quality-control procedures.

Installation of Super Duplex Nipoflange

Correct installation is important for obtaining reliable service from a Super Duplex Nipoflange.

Before installation, the flange and branch connection should be inspected for damage, contamination, or dimensional issues. Sealing surfaces should be clean and free from scratches or foreign material.

The mating components should be properly aligned before tightening. Bolting should be carried out using an appropriate tightening sequence and procedure to achieve suitable gasket compression.

Where welding is required, an approved welding procedure should be followed. Welding conditions should be controlled to maintain the required metallurgical properties of the super duplex material.

After installation, the piping system may undergo inspection or pressure testing according to the applicable code and project requirements.

Maintenance of Super Duplex Nipoflange

Super Duplex Nipoflanges generally require limited routine maintenance when properly selected and installed. However, periodic inspection can help identify potential problems at an early stage.

Inspection may include:

• Checking for visible corrosion
• Inspecting flange faces
• Checking for leakage
• Examining bolted connections
• Checking for mechanical damage
• Inspecting surrounding weld areas
• Verifying insulation or protective systems where applicable
• Reviewing operating conditions

If leakage or corrosion is detected, the underlying cause should be investigated rather than simply replacing the component without determining why the problem occurred.

Custom Super Duplex Nipoflange

Manufacturers can provide custom Super Duplex Nipoflanges for applications that require dimensions or configurations outside standard requirements.

Customization may include:

• Special branch sizes
• Non-standard flange dimensions
• Custom flange thickness
• Special pressure requirements
• RF, RTJ, or FF configurations
• Special bore dimensions
• Custom overall height
• Customer-specific drawings
• Special marking requirements
• Additional inspection requirements

For custom products, customers should provide detailed drawings or technical specifications wherever possible. This helps the manufacturer verify dimensions and production requirements before manufacturing begins.

Why Choose a Super Duplex Nipoflange Manufacturer & Supplier?

Choosing an experienced manufacturer and supplier can help ensure that the supplied Nipoflange meets the required material, dimensional, and inspection specifications.

Important factors to consider include:

• Experience with super duplex materials
• Controlled forging and machining capabilities
• Material traceability
• Quality-control procedures
• Dimensional inspection facilities
• Availability of material certificates
• Non-destructive testing capabilities where required
• Ability to manufacture according to recognized standards
• Custom manufacturing capability
• Appropriate packaging and documentation

A supplier should be able to clearly identify the material grade, applicable standard, dimensions, pressure class, and inspection requirements before the product is dispatched.

Frequently Asked Questions

What is a Super Duplex Nipoflange?

A Super Duplex Nipoflange is a forged branch connection component manufactured from super duplex stainless steel. It provides a branch connection while incorporating a flange for connection to another flanged component.

What are the common grades of Super Duplex Nipoflange?

Common grades include UNS S32750 and UNS S32760. Forged flange material may also be specified as ASTM A182 F53 or F55, depending on the applicable requirements.

What industries use Super Duplex Nipoflanges?

They are used in oil and gas, offshore, marine, petrochemical, chemical processing, desalination, power generation, and water-treatment applications.

Are Super Duplex Nipoflanges suitable for seawater?

Super duplex stainless steels offer strong resistance to chloride-containing environments and are used in suitable seawater applications. The exact grade and design should be evaluated against the actual service conditions.

What pressure classes are available?

Common pressure classes include 150, 300, 600, 900, 1500, and 2500, subject to the applicable standard, size, temperature, and design requirements.

What flange faces are available?

Super Duplex Nipoflanges can be supplied with Raised Face (RF), Ring Type Joint (RTJ), or Flat Face (FF) configurations depending on the application.

Can Super Duplex Nipoflanges be customized?

Yes. Custom sizes, dimensions, branch configurations, flange facings, pressure classes, and inspection requirements can be manufactured according to approved drawings and specifications.

What standards are applicable?

Depending on the product design, applicable standards can include ASME B16.5, ASME B16.47, ASTM A182, and MSS SP-97 where applicable.

What testing can be performed?

Testing may include chemical analysis, tensile testing, hardness testing, PMI, dimensional inspection, visual inspection, UT, PT, and other tests specified by the customer or applicable standard.

Can material certificates be provided?

Yes. Material Test Certificates and other inspection documentation can be supplied according to the purchase order and project requirements.

How should Super Duplex Nipoflanges be stored?

They should be stored in a clean and dry environment and protected from mechanical damage, contamination, and damage to machined or sealing surfaces.

What information is required to order a Nipoflange?

Important information includes main pipe size, branch size, material grade, pressure class, flange facing, applicable standard, quantity, dimensions, inspection requirements, and delivery requirements.

Get a Quote for Super Duplex Nipoflange

For Super Duplex Nipoflange requirements, provide the required pipe and branch sizes, material grade, pressure class, flange facing, applicable standard, quantity, inspection requirements, and delivery details. Providing complete technical information helps ensure accurate product selection and manufacturing.

Super Duplex Nipoflanges can be supplied for standard as well as customized piping requirements, subject to applicable manufacturing standards and technical specifications.