AS/NZS 4331.1 Flange Manufacturer & Exporter

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AS/NZS 4331.1 Flanges

Manufacturer and Supplier of AS/NZS 4331.1 Flanges in various material grades. AS/NZS 4331.1 Weld Neck Flanges Manufacturer in Mumbai, India. Carbon Steel AS/NZS 4331.1 Slip On Flanges Supplier, AS/NZS 4331.1 Stainless Steel Blind Flanges, Alloy Steel AS/NZS 4331.1 Weld Neck Raised Face Flanges, AS/NZS 4331.1 Inconel Lap Joint Flanges Exporter, Hastelloy AS/NZS 4331.1 Blind Flanges Stockist, Copper Nickel AS/NZS 4331.1 Socket Weld Flanges, AS/NZS 4331.1 Threaded Flanges, AS/NZS 4331.1 Orifice Flanges, AS/NZS 4331.1 SWRF Flanges, AS/NZS 4331.1 BLRF Flanges, AS/NZS 4331.1 Alloy Steel Spectacle Blind Flanges Exporter in Mumbai, India, Duplex Steel AS/NZS 4331.1 SORF Flanges, Monel AS/NZS 4331.1 Orifice Plate Flange Set, AS/NZS 4331.1 Flanges Manufacturer in Australia.

Werner Flanges Inc. is a reputable producer and supplier of high-performance AS/NZS 4331.1 Flanges that meet Australian and New Zealand pressure pipe specifications. Weld Neck, Slip-On, Blind, Socket Weld, Threaded, and Lap Joint flanges are available in a variety of material grades, including stainless steel, carbon steel, alloy steel, duplex, and superduplex. Because of their superior pressure handling, dimensional correctness, and extended service life, these flanges are widely utilized in vital industries such as oil and gas, petrochemical, power generation, mining, and maritime.

Whether your project requires conventional or bespoke flanges, Werner Flanges Inc. provides precision and quality that satisfies international standards. We ensure that every product undergoes rigorous quality control, ensuring longevity even in corrosive or high-temperature conditions. Contact our sales staff at sales@wernerflanges.com for bulk queries, bespoke requirements, or speedy delivery alternatives. We are committed to supporting your project from start to finish.

Werner Flanges Inc. is one of the leading manufacturers and suppliers of Duplex Steel AS/NZS 4331.1 Weld Neck Flanges, Industrial AS/NZS 4331.1 Flanges, High Pressure AS/NZS 4331.1 WNRF Flanges, Inconel 601 AS/NZS 4331.1 Slip on Raised Face Flanges, Hastelloy C276 AS/NZS 4331.1 LJRF Flanges, Monel K500 AS/NZS 4331.1 Long Weld Neck Flanges, Carbon Steel AS/NZS 4331.1 Blind Raised Face Flanges, Stainless Steel 316 AS/NZS 4331.1 Screwed Flanges, Titanium AS/NZS 4331.1 Weld Neck Flanges, and more.

AS/NZS 4331.1 Flanges Technical Specifications

Specification Details
Standard AS/NZS 4331.1 (equivalent to ISO 7005-1)
Flange Types Weld Neck (WN), Slip-On (SO), Blind (BL), Socket Weld (SW), Threaded (TH), Lap Joint (LJ)
Pressure Ratings PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40
Size Range DN 15 to DN 2000
Facing Types Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Manufacturing Process Forged / Machined
Testing & Certification EN 10204 3.1 / 3.2, PMI Testing, Hydrostatic Testing, Third-Party Inspection

Material Specifications for AS/NZS 4331.1 Flanges

Type of Materials Common Specifications / Customization Available on Request
* Materials conform to ASTM/ASME standards and are compatible with AS/NZS 4331.1 Flanges
Duplex Steel ASTM/ASME A182 F51, F60, F61, UNS S31803, UNS S32205
Super Duplex Steel ASTM/ASME A182 F53, F55, UNS S32750, UNS S32760, F44 (6Mo)
Stainless Steel ASTM/ASME A182 F304, F304L, F316, F316L, F310, F317L, F321, F347
Carbon Steel ASTM A105, A350 LF1, LF2, LF3, A266 Class 1/2, A694 F42 to F70, A765 Gr. II
Alloy Steel ASTM/ASME A182 F1, F5, F9, F11, F12, F22
Non-Ferrous Alloys Titanium, Brass, Admiralty Brass, Copper Nickel, Nickel Alloys, Hastelloy
Titanium ASTM/ASME B381 Gr.1, Gr.2, Gr.5, Gr.7, Gr.12, Gr.16
Copper Nickel ASTM B151 UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30)
Brass, Al-Brass ASTM B152 UNS C26000, C27200, C28000; ASTM B111 for Al-Brass
Nickel Alloys ASTM B160, B161, B564 – UNS N02200, N02201, N04400, N08800, N08825, N06600, N06601, N06625, Monel K500
Alloy 20 ASTM B462 UNS N08020
Hastelloy ASTM B564 UNS N10276 (Hastelloy C276), N06022 (Hastelloy C22)
Cladded Materials ASTM B898, B265, B424 or custom explosion/clad bonding using dissimilar metals
Titanium-Steel, Nickel-Steel, Titanium-Copper, Stainless Steel-Carbon Steel, Bimetallic/Trimetallic Combinations

Types of AS/NZS 4331.1 Flanges

  • AS 4331.1 Weld Neck Flanges (WN)
  • NZS 4331.1 Slip-On Flanges (SO)
  • AS 4331.1 Blind Flanges (BL)
  • NZS 4331.1 Socket Weld Flanges (SW)
  • AS 4331.1 Threaded Flanges (TH)
  • NZS 4331.1 Lap Joint Flanges (LJ)
  • AS 4331.1 Reducing Flanges
  • NZS 4331.1 Ring Type Joint Flanges (RTJ)
  • AS 4331.1 Flat Face Flanges (FF)
  • NZS 4331.1 Raised Face Flanges (RF)
  • AS 4331.1 Long Weld Neck Flanges (LWN)
  • NZS 4331.1 Orifice Flanges
  • AS 4331.1 Expander Flanges
  • NZS 4331.1 High Hub Blind Flanges

Industries and Applications of AS/NZS 4331.1 Flanges:

Industry Application
Oil & Gas Industry Used extensively in upstream, midstream, and downstream operations for high-pressure piping and processing systems requiring robust sealing solutions.
Petrochemical & Chemical Processing Ideal for handling corrosive chemicals and high-temperature pipelines in refining and chemical manufacturing processes.
Power Generation Installed in thermal, nuclear, and hydroelectric power plants for critical pressure applications and steam systems.
Water Treatment & Desalination Used in high-pressure water distribution, desalination, and wastewater treatment pipelines ensuring durability and leak resistance.
Marine & Offshore Industry Suitable for seawater piping systems, ballast systems, and pressure vessels in marine engineering and offshore platforms.
Pharmaceutical Industry Ensures sanitary, high-pressure fluid handling in sterile environments and cleanroom process systems.
Food & Beverage Industry Used in hygienic and high-pressure processing lines where corrosion resistance and strength are critical.
Mining & Mineral Processing Supports slurry transport systems and ore processing pipelines in mining operations.

Frequently Asked Questions (FAQs) about AS/NZS 4331.1 Flanges

1. What is AS and NZS 4331.1 flange standard?
AS (Australian Standard) and NZS (New Zealand Standard) 4331.1 specify the dimensions, materials, and design requirements for flanges used in high-pressure piping systems in Australia and New Zealand.
2. What materials are used for AS and NZS 4331.1 flanges?
These flanges are typically manufactured from carbon steel, stainless steel, and alloy steel grades to ensure durability and corrosion resistance across various industrial applications.
3. What industries commonly use AS and NZS 4331.1 flanges?
They are widely used in oil & gas, petrochemical, power generation, water treatment, marine, pharmaceutical, and food & beverage industries.
4. Are AS and NZS 4331.1 flanges compatible with other international flange standards?
While AS and NZS 4331.1 flanges are designed for Australian and New Zealand standards, their dimensions and pressure ratings are often comparable to certain ISO and ANSI standards, but compatibility should be verified for each specific application.
5. How do I choose the right flange size under AS and NZS 4331.1?
Select the flange size based on your piping system’s nominal diameter, pressure rating, and the specific design parameters outlined in the AS and NZS 4331.1 standards.
6. Can AS and NZS 4331.1 flanges be used for high-temperature applications?
Yes, these flanges are suitable for high-temperature environments when manufactured with appropriate materials and according to the standards’ specifications.
7. Where can I buy certified AS and NZS 4331.1 flanges?
You can purchase certified AS and NZS 4331.1 flanges from authorized manufacturers and distributors who comply with Australian and New Zealand quality standards.

Flanges we Manufacture, Export & Supply

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