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Solve high-cost corrosion failures in your chemical, water treatment, or oil & gas pipelines with our lightweight, ANSI-compatible 3 inch pipe flange. Ideal for Purchasing Managers seeking ROI-driven upgrades.
As a Purchasing Manager in the USA, you face relentless pressure on supply chain costs and reliability. Standard metal 3 inch pipe flanges from competitors fail you here.
Ready to eliminate these? Discover our FRP solution below.
Our fiberglass reinforced plastic (FRP) 3 inch pipe flange delivers unmatched corrosion resistance, matching ANSI B16.5 Class 150 specs at half the weight. Produced in our 50,000 sqm Hebei factory with 200+ engineers.
| Parameter | Value |
|---|---|
| Nominal Size | 3 Inch (DN80) |
| Outside Diameter | 8.25 inches (210mm) |
| Bolt Circle Diameter | 6.00 inches (152mm) |
| Number of Bolts | 4 |
| Bolt Size | 5/8 inch (16mm) |
| Pressure Rating | 150 PSI @ 73°F |
| Material | FRP (Vinyl Ester Resin) |
| Weight | 6.5 lbs (3kg) |
Used in USA chemical plants for brine lines (reduced leaks by 45%) and wastewater facilities for durable joints. 
Request specs sheet now for your project.
A: Hebei Longxuan ships directly to major ports like LA/Long Beach. MOQ 50 units, free samples available.
A: Matches Class 150: 8.25" OD, 6" bolt circle. Full table above—download PDF for details.
A: Yes, OEM/ODM for threading, pressure ratings up to 300 PSI, or integrated gaskets.
A: FOB/CIF to USA, T/T or L/C. 7-15 day delivery via sea/air.
A: 2-year warranty, free technical support, on-site installation guides.
A: Yes, FRP withstands chemicals better than steel—tested to ASTM D543.
Get 10% off first order + free sample. Money-back guarantee if not satisfied.

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Mike R., Texas Petrochem
"Outstanding 3 inch pipe flange quality—lightweight and no corrosion after 18 months. Delivery beat expectations!" ★★★★★
Sarah L., CA Water Treatment
"Saved 35% on costs vs steel suppliers. Custom OEM service was top-notch." ★★★★★
David K., Florida Plant
"High-speed delivery to Miami port. Flanges exceeded ANSI specs—highly recommend!" ★★★★★
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
Trusted by USA Industry Leaders
Certifications: ISO 9001, RoHS, CE, FDA-compliant materials. Full compliance for USA imports.
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