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Engineered graphite seals that withstand 450°C, reduce leaks by 40%, and cut downtime—direct from China's leading factory to your US operations.
Tired of high-price, low-quality seals from competitors? Solve pump failures, valve leaks, and corrosion in cooling towers, pipelines, and FRP equipment.
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As a US operations manager, you face relentless pressure on ROI. Subpar graphite seals amplify this.
From Hebei Longxuan's powerful factory, we deliver graphite seals optimized for US industrial use—flexible graphite packing for pumps, valves, and FRP equipment.
Explore specs. Request a brochure.
| Property | Value | Standard |
|---|---|---|
| Material | Flexible Graphite | 99.9% Carbon |
| Max Temperature | 450°C (Oxidizing) | ASTM D545 |
| Pressure Rating | 100 bar | API 607 |
| Compressibility | 45% | DIN 3754 |
| Recovery | 18% | DIN 3754 |
Match your needs? Schedule a demo.
"Switched to Longxuan graphite seals—cut costs 37% and zero failures in 6 months." – Operations Mgr, Texas Plant (ROI: 250% in Year 1)
Certificates: ISO 9001, RoHS, CE, CB—fully compliant for USA imports. Privacy policy: View here.
High-temp applications like pumps, valves in FRP cooling towers—resists corrosion, up to 450°C.
Contact us for quotes. We ship via sea/air, 7-14 days to US ports. T/T, L/C payments accepted.
Yes, full OEM/ODM—tailored for your industrial seals needs.
24/7 support, 1-year warranty, free replacements for defects.
Yes, certified for US environmental regs.
35% less, with better quality from our China supply chain.
Order now: Free samples for first 50 US inquiries (while stocks last). 100% money-back guarantee.

WhatsApp: +86 18631823130 | Tel: +86 17631849152
Email: longxuanfrp@gmail.com | Contact Page
Add: 20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei Province, China
Mike R., Operations Manager, Texas
"Best graphite seals we've used—high quality, fast delivery. Reduced leaks 45%!" ★★★★★
Sarah L., Supply Chain Dir, California
"OEM custom seals arrived in 10 days. Beats high-price competitors hands down." ★★★★★
John D., Technical Director, Florida
"Perfect for FRP pipes. Quality assurance is top-notch—highly recommend!" ★★★★★
Lisa K., Purchasing Mgr, New York
"Saved 30% on costs with no quality drop. Excellent service from China factory." ★★★★★
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