As a professional industrial seal manufacturer and exporter based in Ningbo, China, we deliver a comprehensive line of high-performance mechanical seals covering every major working condition: from single spring, balanced/unbalanced spring and externally mounted seals, through PTFE bellow, cartridge balanced and dry running reverse balanced seals, to agitator double-acting unbalanced seals, rubber/metal/elastomer bellow seals, conical spring seals, air conditioning compressor seals and automotive cooling seals.

We stock fully compatible replacement seals for Flygt, Grundfos, APV, Grindes, Fristam, ABS, Alleeiler, EMU, GEA, Tunchenhagen, Godwin, Hidrostal, Hilge, Johnson, Lowara, Waukesha, Vogelsang and most other internationally recognized pump brands.

Beyond our standard catalog, our in-house engineering team provides full OEM/ODM support — we can manufacture exact duplicate seals from your sample, produce precision seals to your technical drawing, or design a fully custom sealing solution built for your unique operating conditions.

Q1: Are you a factory or a trading company?
A: We are a professional mechanical seal manufacturer based in Ningbo, with our own dedicated in-house export team to deliver full trade services for global clients.

Q2: Can I get a sample before placing a formal order?
A: Absolutely. We provide free samples for your performance testing, you only need to cover the corresponding shipping cost.

Q3: Where is your factory located? How can I arrange a visit?
A: Our factory is situated in Ningbo, China. You can fly directly to Ningbo Lishe International Airport, or Shanghai Pudong International Airport which is around 2 hours' drive from our facility. All overseas clients are warmly welcomed to visit our workshop at any time.

Q4: What is your quality control system like in the factory?
A: Quality is our top priority. We implement strict full-process quality control from raw material incoming inspection to finished product final testing. Our factory is fully certified to ISO 9001 quality management standards.

Q5: What is your standard production lead time?
A: Our standard lead time is 10-20 days upon receipt of your prepayment. For urgent orders, we can also arrange a prioritized production schedule upon negotiation.

Q6: What payment terms do you accept?
A: For small sample shipping fees, we support both PayPal and T/T. For formal bulk orders, we accept T/T at sight as the standard payment term.

Q7: Is OEM/ODM service available?
A: Yes, we provide full OEM and ODM services for all our product lines. Our engineering team can customize seals according to your specific requirements.

Q8: Can I purchase pumps and related pump parts from your company?
A: Yes, we also supply a wide range of pumps and supporting pump parts, including lobe pumps, compound & homogeneous pumps, homogenization and emulsification pumps, and other related accessories.