AWWA C207 Class 125 LW Class E Flanges – High-Strength Flanges for Waterworks
The AWWA C207 Class 125 LW Class E Flange is engineered for high-pressure waterworks service, typically in systems requiring flanges with a working pressure of up to 275 psi. Manufactured per American Water Works Association (AWWA) standards, Class E flanges are compatible with steel pipelines and are drilled to match ANSI B16.1 Class 250 patterns. Werner Flanges Inc. supplies Class E flanges designed for robust performance in demanding environments while maintaining precision and durability.
AWWA C207 Class E flanges are suitable for high-pressure water distribution systems, pumping stations, filtration units, wastewater plants, and industrial pipeline applications. Their heavy-duty design and compatibility with steel and ductile iron piping make them an ideal solution for municipal water authorities and civil infrastructure contractors dealing with elevated system pressures.
Werner Flanges Inc. offers AWWA C207 Class 125 LW Class E flanges in sizes from 4” to 96”, manufactured in flat face configurations with ANSI B16.1 Class 250 drilling. These flanges are available in carbon steel and coated with black paint, red oxide, or hot-dip galvanizing based on the customer’s specification. All products are tested and certified, ready for domestic and international shipping.
As a reputed manufacturer and exporter of AWWA standard flanges, Werner Flanges Inc. is recognized for supplying high-performance, pressure-rated flanges for municipal and industrial pipeline systems. We deliver high-strength Class E flanges with guaranteed compliance, full traceability, and responsive customer support—making us a preferred partner for engineers, contractors, and procurement teams worldwide.
AWWA C207 Class 125 LW Class E Flanges – High-Strength Flanges for Waterworks
Technical Specifications
| Specification | Details |
|---|---|
| Standard | AWWA C207 Class 125 (Class E) |
| Flange Types | Ring Flange, Blind Flange |
| Pressure Ratings | 275 psi |
| Size Range | 4” to 96” |
| Facing Types | FF (Flat Face) |
| Manufacturing Process | Forged / Machined |
| Testing & Certification | Dimensional Check, Hydro Test, MTC 3.1 |
Material Specifications for AWWA C207 Class 125 LW Class E Flanges – High-Strength Flanges for 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 125 LW Class E Flanges – High-Strength Flanges for Waterworks
- AWWA C207 Class 125 Class E Flange
- AWWA Class E High-Pressure Flange
- AWWA Flat Face Class E Flange
- Class 275 psi Waterworks Flange
- ANSI 250 Drilled Flange
- AWWA C207 Steel Pipe Flange
- Class E Ring & Blind Flange
Industries and Applications of AWWA C207 Class 125 LW Class E Flanges – High-Strength Flanges for 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 125 LW Class E Flanges – High-Strength Flanges for Waterworks
1. What is the pressure rating of AWWA C207 Class E flanges?
They are designed for a maximum working pressure of 275 psi.
2. What drilling standard is used for Class E flanges?
Class E flanges are drilled to ANSI B16.1 Class 250 patterns.
3. What sizes are available in Class E flanges?
Werner Flanges Inc. supplies sizes ranging from 4 inches up to 96 inches.
4. Are these flanges suitable for high-pressure water systems?
Yes, they are specifically designed for high-pressure water and industrial applications.
5. What coatings are offered for corrosion protection?
Available coatings include black paint, red oxide primer, and hot-dip galvanizing.
6. Do you supply third-party testing or inspection certificates?
Yes, we offer MTCs, hydro testing, and third-party inspection documentation upon request.
7. Can Werner Flanges Inc. export Class E flanges globally?
Absolutely. We export to contractors and distributors across North America, the Middle East, Asia, and Africa.
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