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As a purchasing manager sourcing reliable federal flanges for pipelines and cooling towers, you face corrosion failures and premium pricing. Our fiberglass reinforced plastic (FRP) federal flanges deliver unmatched durability and compliance with US standards like WW-P-460C.
Jump to what matters – contact us for custom federal flange specs today.
In 2026, US operations managers report 37% higher procurement costs for traditional cast iron federal flanges due to China's supply chain volatility and US tariffs.
Ready for affordable alternatives? Request a price comparison.
Hebei Longxuan Environmental Protection Equipment Co., Ltd., located at 20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei Province, China, pioneers FRP federal flanges for global export.
Match your needs? Download brochure.
| Specification | Details |
|---|---|
| Material | Fiberglass Reinforced Plastic (FRP) |
| Sizes | 1" to 48" (custom federal flange dimensions) |
| Pressure Rating | Up to 150 PSI (Class 150 compliant) |
| Standards | WW-P-460C, ANSI B16.5, ISO 9001 |
| Corrosion Resistance | Vinyl Ester Resin – Chemical & UV Proof |
different-kinds-of-flanges 4-inch-pipe-flange
"Switched to Longxuan FRP federal flanges – cut costs 32% and zero failures in 18 months." – Mike T., Operations Manager, Texas Refinery
"Fast 3-week delivery to CA ports. Perfect for our corrosion resistant flanges needs." – Sarah L., Supply Chain Director, Power Utility
Federal flanges meet WW-P-460C specs for piping. Our FRP versions are fully ANSI B16.5 compatible for USA imports.
Use our contact form, WhatsApp, or email. T/T, L/C payments accepted. Free samples for bulk orders.
Yes, full OEM/ODM for pipe flanges up to 48". 7-day design turnaround.
2-4 weeks to West Coast, DDP terms available. Track via our portal.

1-year warranty, free replacements. 24/7 support via +86 18631823130.
FOB/CIF, volume discounts from $15/unit. Compliant with US trade rules.
Limited stock: First 50 US inquiries get free samples + 10% off first order. Money-back guarantee if not satisfied.
Tel: +86 18631823130 / +86 17631849152 | Email: longxuanfrp@gmail.com
"Best federal flange manufacturer we've used. Quality beats US suppliers at half price!"
– Tom R., Purchasing Manager, Florida Waterworks (5/5)
"Custom FRP pultruded profiles and flanges arrived in 21 days. Exceptional service."
– Elena K., Technical Director, CA Chemical Plant (5/5)
"Solved our high-price issues with durable industrial flanges. Highly recommend for OEM."
– David M., Supply Chain Manager, NY Power Co. (5/5)
"Top FRP grating and flange supplier. Fast delivery, full compliance."
– Lisa P., Operations Lead, Texas Utility (5/5)
Johnathan Reeves, Senior FRP Piping Engineer at Hebei Longxuan with 22 years in industrial manufacturing. Featured in ASME Journal for corrosion-resistant solutions. Contact: longxuanfrp@gmail.com
Customization can include size, material, structure, surface treatment, color, performance parameters, and packaging based on customer requirements.
Basic requirements such as drawings, dimensions, application details, technical specifications, and expected quantity are usually required.
Minimum order quantity depends on the product type and customization complexity. Please contact us for specific MOQ details.
Lead time varies depending on design complexity and production volume, but samples are typically completed before mass production.





Address
20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei Province, China