# Lightweight Flanges > Specialist supplier of lightweight steel pipe flanges for waterworks, industrial piping, and large-diameter applications. ## About Lightweight Flanges is a division of Texas Flange & Fittings Inc., focused on Class 125LW, AWWA C207, and ASME B16.47 lightweight flange products. We supply slip-on, blind, and weld neck flanges in sizes from 4 inches through 144 inches for municipal water systems, oil and gas pipelines, power generation, and industrial process piping. Serving the industry since 1986. Main facility in Houston, TX. Products available through authorized distributors. ## Products & Services - Class 125LW Slip-On Flanges - Class 125LW Blind Flanges - Class 125LW Weld Neck Flanges - AWWA C207 Class D and Class E Flanges - ASME B16.47 Series A and Series B Large Diameter Flanges - Custom lightweight flange fabrication - CAD / 3D flange drawings and engineering support ## Key Pages - [Homepage](https://lightweightflanges.com/): Overview of lightweight flange products and capabilities - [Products](https://lightweightflanges.com/products): Detailed product catalog with flange types and configurations - [Specifications](https://lightweightflanges.com/specifications): Dimensional data, pressure ratings, and standards reference - [CAD Drawings](https://lightweightflanges.com/cad-3d-flange-drawings): CAD and 3D flange drawing services - [Weights & Dimensions](https://lightweightflanges.com/weights-and-dimensions): Flange weight and dimensional reference data - [Domestic vs Import](https://lightweightflanges.com/domestic-vs-import-flanges): Guidance on domestic vs imported flange sourcing - [About](https://lightweightflanges.com/about): Company information and contact details - [Blog](https://lightweightflanges.com/blog): Technical articles on flange selection and standards ## Contact - Phone: 281-484-8325 - Email: sales@texasflange.com - Parent Company: https://texasflange.com ## Blog Articles - [Raised Face Slip-On Flanges Guide](https://lightweightflanges.com/raised-face-slip-on-flanges): Practical guide to RFSO flanges with ASME B16.5 specs - [Understanding Lightweight Flange Standards](https://lightweightflanges.com/blog/understanding-lightweight-flange-standards): Guide to AWWA C207, ANSI B16.1, and industry standard classifications - [Choosing the Right Flange for Large Diameter Piping](https://lightweightflanges.com/blog/choosing-the-right-flange-for-large-diameter-piping): Series A, Series B, and lightweight options for 26-60 inch pipe - [Lightweight vs Heavy-Duty Flanges](https://lightweightflanges.com/lightweight-flanges-vs-heavy-duty-flanges): AWWA C207 vs ASME B16.5 comparison - [Lightweight vs Traditional Flanges](https://lightweightflanges.com/lightweight-flanges-vs-traditional-flanges): Construction, materials, and pressure class differences - [Future Trends in Lightweight Flanges](https://lightweightflanges.com/future-trends-in-lightweight-flanges): Emerging materials, digital engineering, and smart monitoring - [Installation Guide](https://lightweightflanges.com/installation-guide-for-lightweight-flanges): Best practices for installing lightweight flanges - [Materials Guide](https://lightweightflanges.com/types-of-materials-used-in-lightweight-flanges): ASTM A36, A516-70, A105, and A350 LF2 material specifications