AWWA C207 Class D Hub Flanges for High-Pressure Waterworks
The AWWA C207 Class D Hub Flange is a robust steel flange designed to handle high-pressure fluid systems in municipal and industrial applications. Unlike flat ring flanges, the hub flange features a tapered hub that adds strength and stability, particularly useful for large-diameter piping systems. Designed in accordance with the AWWA C207 standard and typically drilled to ANSI B16.5 Class 150, this flange is engineered for pressure ratings up to 275 psi, depending on the pipe size and material. Werner Flanges Inc. supplies Class D hub flanges that meet stringent dimensional tolerances and offer exceptional long-term durability.
Class D hub flanges are commonly used in high-pressure water transmission systems, treatment facilities, utility piping, and infrastructure projects that demand reliable flanged connections. Their robust design makes them suitable for both above-ground and buried service conditions. They are especially favored in government water distribution projects, industrial pumping stations, and irrigation networks.
Werner Flanges Inc. provides AWWA C207 Class D Hub Flanges in sizes ranging from 4 inches to 144 inches. Offered in high-quality carbon steel, our flanges come with standard surface finishes like black paint, red oxide primer, or hot-dip galvanizing for enhanced corrosion resistance. We maintain a ready inventory for fast shipping and also support custom orders with special coatings or drilling configurations upon request.
As a leading global supplier, Werner Flanges Inc. is committed to providing high-performance flanges that meet both domestic and international standards. With a focus on reliability, traceability, and precision machining, our Class D hub flanges are trusted by engineers, procurement managers, and contractors worldwide. Every flange we ship is backed by full quality documentation and competitive pricing.
AWWA C207 Class D Hub Flanges for High-Pressure Waterworks Technical Specifications
| Specification | Details |
|---|---|
| Standard | AWWA C207 – Class D |
| Flange Types | Hub Flange |
| Pressure Ratings | Up to 275 psi |
| Size Range | DN 15 to DN 2000 |
| Facing Types | Flat Face (FF) |
| Manufacturing Process | Forged / Machined |
| Testing & Certification | MTC 3.1, Hydro Testing, Dimensional Reports |
Material Specifications for AWWA C207 Class D Hub Flanges for High-Pressure Waterworks
| Type of Materials | Common Specifications / Customization Available on Request |
|---|---|
| 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 AWWA C207 Class D Hub Flanges for High-Pressure Waterworks
- AWWA Class D Hub-Type Flange
- AWWA C207 Steel Hub Flange
- ANSI 150 Drilled Hub Flange
- Class D Tapered Hub Flange
- Waterworks Hub Flange
- Carbon Steel Hubbed Flange
- High-Pressure Utility Flange
Industries and Applications of AWWA C207 Class D Hub Flanges for High-Pressure Waterworks
| 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 AWWA C207 Class D Hub Flanges for High-Pressure Waterworks
1. What is the pressure rating for AWWA C207 Class D Hub Flanges?
These flanges are rated up to 275 psi, depending on size and material grade.
2. Are Class D Hub Flanges compatible with ANSI B16.5 drilling?
Yes, they are typically drilled to ANSI B16.5 Class 150 dimensions.
3. What sizes are available for AWWA Class D Hub Flanges?
We offer sizes from 4 inches up to 144 inches in both standard and custom configurations.
4. Do you offer coating options for corrosion resistance?
Yes, coatings such as black paint, red oxide primer, and hot-dip galvanizing are available.
5. What materials are used for manufacturing these flanges?
Common materials include ASTM A36, A283 Gr C, A516 Gr 60, and A105 forged steel.
6. Can I request special documentation for these flanges?
Absolutely. We provide MTC 3.1, hydro test reports, and dimensional inspection records.
7. Does Werner Flanges Inc. export Class D Hub Flanges internationally?
Yes, we export globally and offer reliable delivery with full export documentation.
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