Cartridge mechanical seal for Goulds 3196 and Durco Mark 3 ANSI process pumps

WE SERVICE THE

Pump Repair Services

FBU mechanical seals supplied to pump repair companies across North America

"WE WILL IDENTIFY YOUR SEAL."SHIP IT IN OR SEND A PHOTO.

We will repair your existing seal or quote you a replacement seal.

Contact Us Today
Mechanical Seal Repair specializes in sourcing of genuine replacement mechanical seals from around the world.
Replacement Mechanical Seal Brands:
Pump brands FBU seals are compatible with
Home contact

Not sure of the model? Send a photo — we'll identify it.

We’ve built our business

on customer service.

When you have a seal failure, we are quick to react to get you up and running again – often better than before.

We have a warehouse full of standard and custom seal components that enable us to provide fast service.

APPLICATION SPECIFIC

MATERIALS

FBU takes the time to understand the specifics of your job, in order to provide the right materials for your application.
Some of the materials we specialize in are:
• Silicon Carbide (Alpha Sintered, Reaction-Bonded)
• Tungsten Carbide (Nickel Bound, Cobalt Bound)
• High Purity Ceramic
• Standard Mechanical Seal Grade Carbon
• Specialized Metal Filled Carbons
Seal face material combinations: silicon carbide, tungsten carbide, ceramic and carbon
FBU Mechanical Seals Compatible with Various Brands of Industrial Pumps
ANSI B73.1 process pump with a cartridge mechanical seal installed

Repair services

MSR can service all types of mechanical seals, in addition we can identify and supply the correct mechanical seal for any installation. Our technicians are familiar with the wide variety of seal families, materials and their applications. Through each stage of the repair / rebuilding process the seal is tested to exceed manufacturer’s specifications.
The seal families we service include:
• John Crane
• EG & G Sealol
• Chesterton
• U.S. Seal
• Durametallic
• Borg-Warner
• Flowserve
• Pac Seal
• Flexibox
• NSO
We also provide machining capabilities for seal components such as:
• Sleeves
• Collars
• Glands
Cartridge seal replacement for Flowserve Durco Mark 3 ANSI pump

Advantages of dealing

with Mechanical Seal,

Repair:

• Best single source of supply for all makes of mechanical seals
• In-depth knowledge of mechanical seals for all pumps
• Stocklists of 1000’s of mechanical seals for immediate dispatch
• We maintain the integrity of pumps through supply of genuine equipment
• 24 hour response times to all enquiries
Cartridge seal replacement for Goulds 3196 ANSI process pump

SERVING THESE INDUSTRIES

Mechanical seals for chemical processing pumps
Chemical processing
Mechanical seals for pulp and paper mill pumps
Pulp and paper
Mechanical seals for mining slurry pumps
Mining
Mechanical seals for marine and shipping pumps
Marine
Mechanical seals for municipal sewage pumps
Municipal sewage
Mechanical seals for food and beverage pumps
Food

FAQ

Can FBU provide 'troubleshooting' capabilities?

Yes, we have professional engineers to offer on-site & remote troubleshooting support.

Can FBU provide mechanical seal failure analysis?

Does FBU provide customer specific inventory?

Does FBU design and produce complete seals?

Products
APOG cartridge seals for refinery and petrochemical pumps, designed to API 682 4th Edition

API682 4th Edition

APOG cartridge seals for refinery and petrochemical projects, designed to API 682 4th Edition.

Complete single and double cartridge seal families for centrifugal and chemical pumps

Standard Cartridge Seals

Complete single and double cartridge seal families for centrifugal and chemical pumps.


Cartridge sealing solutions for mixers, agitators and reactors

Seal for Mixer&Agitators

Cartridge sealing solutions configured for mixers, agitators and reactors.


Engineered seals for high PV, special materials and severe duty applications

Engineered Seals

Equipment-specific configurations for high PV, special materials and severe duties.


Seal water flow meter monitoring barrier and seal-water flow

Seal Water Flow Meters

Monitor barrier and seal-water flow to protect the mechanical seal in service.

Heat exchanger removing heat from the barrier fluid in seal support plans

Heat Exchanger

Remove heat from the barrier fluid in seal support plans.

Buffer and barrier fluid reservoirs for dual-seal pressurized support plans

Barrier Fluid Reservoirs

Buffer and barrier fluid tanks for dual-seal and pressurized support plans.

Bearing isolators for pumps and rotating equipment

Bearing Isolators

For pumps and rotating equipment.


PUMP REPAIR PROGRAM

Start with the pump

already in your service.

Send the pump model, dimensions or existing seal. FBU defines a repeatable complete cartridge configuration for recurring repair work.

Or you may contact us directly via the contact information below.

Home contact

Not sure of the model? Send a photo — we'll identify it.

Copyright © 2026 FBU Sealing Technology (Suzhou) CO.Ltd. All Rights Reserved.

Copyright © 2026 FBU Sealing Technology (Suzhou) CO.Ltd. All Rights Reserved.