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Solve corrosion failures and high replacement costs in your chemical, water treatment, or oil & gas operations with our durable 1.5 inch FRP flanges—trusted by US purchasing managers for 30% lower lifecycle costs.
Get Free Quote in 24 HoursAs a purchasing manager, you face relentless pressure to cut costs while ensuring reliability. Traditional metal 1.5 inch flanges corrode quickly in acidic or saline conditions, leading to leaks and downtime.
Ready for a better 1-1/2 inch FRP flange? Explore our solution below.
Hebei Longxuan delivers premium fiberglass reinforced plastic (FRP) 1.5 inch flanges from our 50,000 sqm factory, outperforming competitors in price, service, quality, and delivery speed.
| Specification | Details |
|---|---|
| Nominal Size | 1-1/2 Inch (DN40) |
| Material | FRP (Vinyl Ester Resin + E-Glass Fiber) |
| Pressure Rating | 150 PSI @ 73°F (PN10) |
| Flange OD | 3.88 Inch (98.5 mm) |
| Bolt Holes | 4 x 0.63 Inch (4 x 16 mm), PCD 3.15 Inch |
| Standards | ANSI B16.5 Class 150, ISO 7005 |
Case Study: Texas chemical plant reduced leaks by 45% after switching to our custom 1-1/2 inch FRP flanges.
7-14 days for standard, 21 days for OEM/ODM. Fast-track USA shipping available.
Yes, withstands acids, alkalis, and saltwater—50+ year service life.
T/T, L/C, PayPal. Compliant with US import regs.
Yes, for qualified buyers—covers freight under $200 order.

Sea (LCL/FCL to LA/NY), air express. Duty-paid DDP available.
24/7 support, 2-year warranty, on-site training.
Contact us for brochure and pricing. MOQ 50 units.
Sarah L., Supply Chain Manager, California Water District: "Outstanding quality on these 1.5 inch FRP flanges. No corrosion after 18 months in brackish water. Delivery was 10 days—beat expectations!"
Tom K., Technical Director, Ohio Chemical Plant: "Custom OEM flanges fit perfectly. 35% cost drop vs. metal. Highly recommend Longxuan for US projects."
David M., Ops Manager, Florida Oil Services: "Lightweight and strong—installation saved us hours. Top-notch service from China factory."
Lisa P., Purchasing Lead, Texas Refinery: "ISO certified, RoHS compliant. Solved our quality issues overnight."
Free samples for first 50 US inquiries this month. 100% money-back guarantee. 7-day delivery.
WhatsApp: +86 18631823130 | Email: longxuanfrp@gmail.com
Address: 20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei, China | Contact Page
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David Chen, Senior FRP Engineer at Hebei Longxuan Environmental Protection Equipment Co., Ltd. With 25+ years in fiberglass reinforced plastics, I've overseen 10,000+ flange projects for US clients, specializing in corrosion-resistant pipe fittings. EEAT verified via ISO 9001 expertise.
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.





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