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WanYu Mechanical Co., Ltd. is a trusted manufacturer and exporter of high-performance mechanical seals, O-rings, bellow seals, and OEM sealing solutions for industrial pumps including FLYGT, GRUNDFOS, ITT, and Xylem.
NingBo WanYu Mechanical Seals LTD. is a professional manufacturer and exporter of all kinds of mechanical sealing solutions. With years of experience, we specialize in Single and Multi Spring Mechanical Seals, Cartridge Seals, FLYGT Pump Mechanical Seals, Grundfos Pump Seals, ITT and Xylem Pump Seals, Flygt Plug-in Seals, Gaskets, O-rings, and OEM custom sealing systems.
Our products are engineered for reliability, durability, and performance in harsh industrial environments. We serve global clients across water treatment, chemical processing, oil & gas, and power generation industries.
Pump seals for critical applications
Custom seals tailored to your needs
High-quality mechanical seals designed for reliability, efficiency, and long service life in industrial pumping systems.
High-performance mechanical seal for industrial pumps, suitable for abrasive and corrosive environments.
Advanced elastomer bellow shaft seal with excellent chemical resistance and thermal stability.
Multi-spring mechanical seal ideal for high-pressure applications in chemical and process industries.
Compact single spring seal for clean water and light-duty applications. Easy installation and maintenance.
Flygt plug-in mechanical seal with quick-connect design for submersible pumps and wastewater systems.
High-flow mechanical seal for Grundfos and similar pump models. Optimized for continuous operation.
Chemically inert PTFE-based wedge seal for aggressive media. Resistant to acids, solvents, and high temperatures.
Precision-engineered O-rings and gaskets in various elastomers including NBR, EPDM, Viton, and silicone.
Hermetically sealed metal bellow technology for zero leakage in critical process applications.
Tailored sealing solutions based on customer drawings, samples, or specifications. Fast turnaround.
Our commitment to quality, innovation, and customer service sets us apart in the global sealing industry.
Engineered for long service life under extreme pressure, temperature, and chemical exposure.
CNC-machined components with tight tolerances ensure consistent performance and leak-free operation.
Exported to multiple countries with responsive technical support and after-sales service.
OEM and ODM services available. We adapt to your specific pump models and operational needs.
Wide selection of seal face materials: Silicon Carbide, Tungsten Carbide, Ceramic, Graphite, and more.
Rigorous testing and inspection processes ensure every seal meets international standards.
We produce a wide range including single and multi-spring mechanical seals, cartridge seals, bellow seals (elastomer and metal), PTFE wedge seals, O-rings, gaskets, and OEM custom solutions for FLYGT, GRUNDFOS, ITT, Xylem, and other pump brands.
Yes, we offer full OEM and ODM services. You can send us your technical drawings, samples, or specifications, and we will manufacture seals to your exact requirements.
Seal face materials include Silicon Carbide, Tungsten Carbide, Ceramic, and Graphite. Elastomers include NBR, EPDM, Viton, PTFE, and Silicone, depending on chemical compatibility.
Yes, we export to over 50 countries worldwide. Our products are used in water treatment, chemical processing, oil & gas, and power generation industries globally.
Standard products are typically shipped within 7–15 days. Custom OEM orders may take 2–4 weeks depending on complexity and quantity.
For inquiries, quotes, or technical support, please visit our official website to contact the WanYu team directly.
Ning Bo WanYu Mechanical Sales Co., Ltd.
Ningbo Fenghua Shang Tian Zhen Da Ao industrial area
0086-0574-88636813
0086-0574-88632307
www.wanyuseal.com
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