Helping you prepare for mechanical seal solutions
At Cowseal, we recognize the necessity of dependable and efficient sealing solutions for your industrial needs. We offer a wide variety of mechanical seals for water pumps and centrifugal pumps that are compatible replacements for well-known brands like John Crane, EagleBurgmann and Flygt, among others. Because each of your projects has its own challenges, we also provide custom seal solutions designed to your specific requirements.

How we work
A six-step process for your mechanical seal project
- Consultancy
We listen to your objectives and understand your sealing needs.
- Design
We design mechanical seal drawings according to your needs.
- Sample
We produce samples according to the drawings.
- Testing
We provide samples for you to install on your equipment and test.
- Mass production
After the sample test passes, we start mass production.
- Ongoing service support
We provide ongoing maintenance and online service support.
Company
Outline
- Company
- Cowseal Ltd.
- Credit code
- Unified Social Credit Identifier 92330203MA2AF0CK1Y
- Main business
- Mechanical seals, carbon, silicon carbide, ceramics, etc.
- Director
- YueWen Zhang (representative director)
- Established
- June 12, 2000
- Address
- Chehe Industrial Park, Ningbo, China
- Employees
- 30–40




Talk to the people who machine the seal
Send the seal drawing, the seal model or a sample of the old seal, and we will quote OEM-compatible, custom or private-label seals at low minimums.