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Solve high costs and quality issues in your piping systems with durable FRP flanges – engineered for USA industrial standards, OEM/ODM customization, and high-speed delivery.
Tired of flanges that leak, crack, or delay your projects? Hebei Longxuan delivers types of FRP flanges that cut downtime by 40% for purchasing managers like you.
As a purchasing manager, you face relentless pressure to cut costs without sacrificing reliability.
Traditional metal flanges from competitors hit your budget hard – up to 50% more expensive due to import tariffs and volatile steel prices (per 2025 USGS data).
Low-grade imports crack under corrosion, causing 25% unplanned downtime (IndustryWeek 2025 report). Your operations grind to a halt.
China's fragmented supply chains mean 4-6 week waits. Miss deadlines and lose ROI.
Off-the-shelf flanges don't fit your FRP piping systems perfectly, leading to leaks and rework.
Discover how our FRP flanges fix this. Learn more below
Our powerful factory in Hebei produces seven core types of FRP flanges, from weld neck to blind, all with quality assurance for USA compliance.
| Flange Type | Key Features | Pressure Rating (bar) | Applications | Sizes (DN) |
|---|---|---|---|---|
| Weld Neck FRP Flange | High-strength weld, tapered hub | 16 | Pipelines, cooling towers | 50-2000 |
| Slip-On FRP Flange | Easy install, fillet weld | 10 | Low-pressure ducts | 25-1200 |
| Socket Weld Flange | No misalignment, socket fit | 16 | High-vibration fans | 15-300 |
| Lap Joint Flange | Stub end compatible, cost-effective | 10 | GRatings, pultrusions | 50-1000 |
| Threaded FRP Flange | Screw-on, no welding | 6 | Maintenance lines | 15-300 |
| Blind FRP Flange | Seals pipe ends | 25 | Pressure testing | 50-2000 |
Cooling Tower Project (Texas, USA): Switched to weld neck FRP flanges – reduced leaks by 90%, saved $150K annually.
PFRP pipe systems in chemical plants handle acids without corrosion.
Need specs for your setup? Request a brochure
"Longxuan's slip-on FRP flanges cut our replacement costs by 37%. Delivered in 18 days!" – Mike R., Ops Manager, Texas Plant.
Weld neck, slip-on, socket weld, lap joint, threaded, and blind – all customizable for pipes and gratings.
Lighter, corrosion-free, and 30% cheaper long-term, fully compliant with US codes.

Quote in 24h → Design approval → Production (7-14 days) → Sea freight to US ports.
Yes, full design support with CAD files and prototyping.
FOB/CIF to USA, T/T, L/C, PayPal accepted. Track via our portal.
1-year warranty, free technical support, on-site audits available.
Up to 25 bar for blind types; tested per industry standards.
Order by end of month: Free samples + 10% off first batch. No risk – 100% money-back guarantee.
Privacy assured: See our policy.
Hebei Longxuan Environmental Protection Equipment Co., Ltd. | 20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei, China | Tel: +86 17631849152
John S., Supply Chain Manager, California: "Best weld neck FRP flanges we've used. Quality beats competitors, delivered fast. Saved 35% on costs!"
Sarah L., Technical Director, Florida: "Custom blind flanges for our cooling towers – zero leaks after 18 months. Highly recommend Longxuan."
Mike T., Operations Manager, Texas: "Threaded types fit perfectly. From quote to delivery: 20 days. Top service from China."
Emily R., Purchasing Lead, New York: "Slip-on flanges reduced install time by 40%. Quality assurance is real – ISO certified excellence."
David Chen, Senior FRP Piping Engineer at Hebei Longxuan with 25+ years in fiberglass manufacturing. Featured in CompositesWorld magazine, expert in ASME/ANSI flange standards for global exports.
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