AWWA C207 Class 125 LW Class B Flanges – Waterworks Flanges
The AWWA C207 Class 125 LW Class B Flange is a low-pressure steel ring flange designed for waterworks service in systems such as water mains, treatment plants, and pump stations. Manufactured as per the American Water Works Association (AWWA) C207 standard, Class B flanges are rated for systems operating at 125 psi and are used in conjunction with AWWA C115 steel pipe and fittings. Werner Flanges Inc. offers precision-engineered AWWA C207 Class B flanges in multiple configurations, optimized for durability and reliable performance.
These flanges are primarily used in municipal water distribution networks, industrial water pipelines, wastewater treatment facilities, irrigation systems, and fire protection infrastructure. Their lightweight (LW) design makes them ideal for low-pressure systems where structural integrity, corrosion resistance, and easy installation are essential.
Werner Flanges Inc. stocks and manufactures AWWA C207 Class 125 LW Class B flanges in sizes ranging from 4” to 144” in flat face (FF) configurations with drilling compatible with ANSI B16.1 Class 125. We provide flanges with mill test certificates, optional coatings, and fast shipping to meet urgent project schedules.
Werner Flanges Inc. is a trusted supplier, manufacturer, and exporter of high-quality waterworks flanges conforming to AWWA standards. With an in-depth understanding of municipal and industrial project needs, we provide flanges that combine dimensional precision, corrosion resistance, and consistent supply backed by competitive pricing and global distribution capabilities.
AWWA C207 Class 125 LW Class B Flanges – Waterworks Flanges Technical Specifications
| Specification | Details |
|---|---|
| Standard | AWWA C207 Class 125 (Class B) |
| Flange Types | Ring Flange, Blind Flange, Slip-On |
| Pressure Ratings | 125 psi |
| Size Range | 4” to 144” |
| Facing Types | FF (Flat Face) |
| Manufacturing Process | Forged / Machined |
| Testing & Certification | Dimensional Check, MTC 3.1, Hydro (on request) |
Material Specifications for AWWA C207 Class 125 LW Class B Flanges – Waterworks Flanges
| 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 B Flanges – Waterworks Flanges
- AWWA C207 Class 125 Flange
- AWWA Class B Flange
- AWWA Lightweight Flange
- AWWA Flat Face Flange
- Class 125 Waterworks Flange
- ANSI B16.1 Equivalent Flange
- AWWA Steel Pipe Flange
Industries and Applications of AWWA C207 Class 125 LW Class B Flanges – Waterworks 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 AWWA C207 Class 125 LW Class B Flanges – Waterworks Flanges
1. What is the pressure rating of AWWA C207 Class B flanges?
These flanges are rated for a working pressure of 125 psi.
2. What is the size range for AWWA C207 Class 125 LW Class B flanges?
They are available in sizes from 4 inches to 144 inches.
3. Are AWWA C207 Class B flanges compatible with ANSI B16.1?
Yes, the drilling pattern is designed to match ANSI B16.1 Class 125 flanges.
4. What coating options are available?
Coatings include black paint, red oxide primer, or hot-dip galvanizing for corrosion resistance.
5. Can these flanges be used for wastewater systems?
Yes, they are commonly used in wastewater and water treatment systems.
6. What materials are used for manufacturing AWWA C207 Class B flanges?
Typical materials include carbon steel grades like A36, A283 Gr C, and A516 Gr 70.
7. Does Werner Flanges Inc. export these flanges internationally?
Absolutely. We ship worldwide with proper documentation and compliance support.
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