Common Mechanical Seals
Elastomer Bellow Mechanical Seals
O-ring Mechanical Seals
PTFE Wedge Mechanical Seals
Metal Bellow Mechanical Seals
Cartridge Mechanical Seals
OEM Pump Seals
Mechanical Seals for Grundfos Pump
Mechanical Seals for APV Pump
Mechanical Seals for Fristam Pump
Mechanical Seals for Alfa Laval Pump
Mechanical Seals for Inoxpa Pump
Mechanical Seals for Emu Pump
Seal Material
Silicon Carbide
Tungsten Carbide
PTFE seal
Standard Seat
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Ningbo Zhongli John Seals Co., Ltd. (formerly Fenghua Zhongli Seals Co., Ltd.) was established in 2000, specializing in the design and manufacture of various mechanical seals and sealing materials.

Our products mainly include rubber bellows seals, metal bellows seals, O-ring mechanical seals, flygt pump series, grundfos pump seals and cartridge seals. Some mechanical seal produced by Zhongli have become excellent replacement for mechanical seals, such as Alfa-Laval, John Crane, Grundfos, EagleBurgmann, Vulcan, Roten, Chesterton, Flowserve, etc.

In 2004, we passed the ISO9001 international quality certification. Our products are exported to foreign countries with their excellent quality, good after-sales service and more competitive prices, and are exported to more than 30 countries and regions, including the United States, Russia, Brazil, South Africa, United Kingdom, Netherlands, India and Australia etc...

Over the years, we have adhered to the principle of "quality first, service-oriented", opened up the market and continued to innovate.

We sincerely hope that clients will come to establish long-term business relations with each other on the basis of mutual benefits and development to create a bright perspective.