Lepu Seal – Professional China Mechanical Seal Manufacturer & Cartridge Seal Supplier

About Lepu Seal

A trusted Chinese manufacturer of high-performance mechanical seals since 1998, Lepu Seal has grown into one of the top 10 mechanical seal brands in China. We specialize in cartridge seals, dry gas seals, Grundfos replacements, and OEM solutions for global industrial applications.

Why Choose Lepu Seal?

Over 25 years of industry experience
Specialized in Dry Gas Seals & Cartridge Seals
OEM replacements for Aesseal, Grundfos, Flygt, Alfa Laval, Blackmer
Custom design and CAD support
Serving industries: Chemical, Power, Marine, Pharmaceutical, Food & Beverage

Our Products

High-quality mechanical seals and pump parts engineered for durability, precision, and performance across industries.

Flygt PLUG-IN Cartridge Seal

For 2610, 2660, 4640, 3153, 5100, 3301, 5150

Direct replacement for Flygt pumps, ensuring leak-free performance and easy installation.

Safematic SE2 Dual Mechanical Seal

For Sulzer or Andritz Paper Machines

Robust dual seal solution designed for high-pressure pulp and paper industry applications.

Cartridge Grundfos Mechanical Seal

Grf-c for Grundfos CR Vertical Pumps

High-efficiency seal engineered to match original Grundfos specifications.

Metal Bellows Mechanical Seal

Model 85n – High Precision

Ideal for high-temperature and corrosive environments with zero leakage design.

OEM Cartridge Mechanical Seal

Aesseal CSSN Replacement

Exact-fit replacement with superior materials and extended service life.

Dry Gas Seal – Flowserve GASPAC

Tandem Design Available

High-performance dry gas seal from China’s best manufacturer at competitive pricing.

LP4610 Cartridge Seal

Chinese Best Manufacturer

Reliable and durable cartridge seal for industrial pump systems.

Single Cartridge Mechanical Seal

LP-cartex Series

Compact design with excellent sealing performance for general industrial use.

Mechanical Seal Safematic SAF

Cartridge Type

Engineered for reliability in demanding paper and pulp industry applications.

Tandem Dry Gas Seal

Tandem Design

Dual-stage dry gas seal for enhanced safety and performance in gas compression.

High Temp Metal Bellows Seal

Model 2609-2C (HSP-1037043-2)

Designed for extreme temperature applications with long service intervals.

Professional Oil Industry Seal

SEE-50 / SEE-100 Series

Robust sealing solution for oil and gas pumping systems under high pressure.

Industries We Serve

Our mechanical seals are trusted across critical industrial sectors worldwide.

Paper & Pulp

High-pressure seals for digesters, pumps, and paper machines.

Food & Beverage

Hygienic, FDA-compliant seals for sanitary processing.

Power Plant

Reliable sealing for boiler feed, condensate, and cooling pumps.

Chemical & Petroleum

Corrosion-resistant seals for aggressive media and high temps.

Steel Industry

Durable seals for rolling mills, descaling, and cooling systems.

Pharmaceutical

Ultra-clean, contamination-free sealing solutions.

Marine

Seawater-resistant seals for shipboard pumps and propulsion.

Sewage Treatment

Clog-resistant seals for wastewater and sludge handling.

Customized Mechanical Seal Service

We design and manufacture custom seals based on your exact requirements.

Requirement Collection

We gather your application details, parameters, and performance needs.

CAD Drawing Design

We provide detailed CAD drawings for your review and approval.

Sample Production

We build and test a prototype seal before mass production.

Mass Production

After approval, we deliver high-volume, consistent-quality seals.

Get in Touch

Need a mechanical seal solution? Contact us today for a free sample or technical consultation.

Email: mark@lepuseal.com

Phone: +86 18903009893

Company: Guangzhou Lepu Machinery Co., Ltd.

Address: No. 5, Yunkai Road, Huangpu District, Guangzhou, China

WhatsApp: +86-18903009893

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Lepu Seal – Leading China Mechanical Seal Manufacturer