Fluid Sealing International

Mechanical Seals

Single and dual cartridge pusher seals, component seals, and metal bellows seals from Fluid Sealing International, made in the USA and selected for your application by Anchor Seals Inc.

ASI is a proud distributor of Fluid Sealing International (FSI). FSI manufactures high-quality mechanical seals in the USA in addition to providing unparalleled customer service and custom sealing solutions.

Browse the four series below, use the selection guide to match a seal to your industry and equipment, or request a quote and let us select the seal for your application.

By Series

Mechanical Seals by Series

Learn More About FSI
Mechanical Seals 1000 Series
Series 1000

Mechanical Seals 1000 Series

Single Cartridge Pusher Mechanical Seals in both standard and custom designs.

View the 1000 Series
Mechanical Seals 2000 Series
Series 2000

Mechanical Seals 2000 Series

Dual Cartridge Pusher Mechanical Seals for pump and mixer applications.

View the 2000 Series
Mechanical Seals 3000 Series
Series 3000

Mechanical Seals 3000 Series

Component and Cartridge Pusher Mechanical Seals custom engineered for specific applications.

View the 3000 Series
Mechanical Seals 6000 Series
Series 6000

Mechanical Seals 6000 Series

Single and Dual Cartridge Metal Bellows Mechanical Seals.

View the 6000 Series
Need a seal selected for a specific pump or mixer? Send us the application and we will specify it.
Request a Quote on Mechanical Seals
Our Manufacturer

Fluid Sealing International

FSI designs, manufactures, repairs, and services mechanical seals and custom sealing systems for industrial applications, all made in the USA. ASI stocks FSI seals across three locations and rebuilds them in our own state-of-the-art seal repair facility.

Quality Statement

Guaranteed Materials and Workmanship

All Anchor products, including mechanical seals, are designed and manufactured in an ISO 9001:2000 listed facility. We therefore guarantee all our products to be free from defects relating to materials and workmanship.

Due to the varied nature of mechanical seal applications, we cannot guarantee their operation in service unless we have specifically selected a seal for a particular application.

Selection Guide

ASI Mechanical Seals Selection Guide

Find your industry, then the equipment and application, to see the recommended seal types. Click a model number to open its series.

IndustryEquipment TypesApplicationsMechanical Seal Types
Chemical Process
  • ANSI and DIN Process Pumps
  • Horizontal Split Case Pump
  • Mixers and Reactors
  • Rotary Pumps and Screw Pumps
  • Corrosive Chemicals
  • Mild Acids
  • Caustics
  • Light Hydrocarbons
Refining and Petrochemical
  • API Heavy Duty Process Pumps
  • Multi-Stage and Diffuser Pumps
  • Vacuum Pumps
  • Horizontal Split Case Pumps
  • General Hydrocarbons
  • Caustics
  • Amine Services
  • Crudes and Acids
Power Generation
  • Horizontal Split Case Pumps
  • Multi-Stage and Diffuser Pumps
  • Vertical Pumps
  • Slurry Pumps
  • Boiler Feed Water
  • River Water
  • Condensate
  • Scrubber Slurries
Steel and Metals
  • Horizontal Split Case Pumps
  • ANSI/DIN Process Pumps
  • Multi-Stage Pumps
  • Specialty Equipment
  • Cooling Water
  • Chemical and Tar Transfer
  • River Water
  • Descaling Service
Pulp and Paper
  • Paper Stock Pumps
  • ANSI/DIN Process Pumps
  • Rotary and Screw Pumps
  • Mixers and Reactors
  • Paper Stock
  • Black / White Liquor
  • Chemical Transfer
  • Hot Water / Condensate
Municipal and Water
  • Horizontal Split Case Pumps
  • Sewage Handling Pumps
  • Slurry Pumps
  • Vertical Pumps
  • Sanitary Water
  • River Water
  • Sewage Handling
  • Chemical Treatment
Pharmaceutical and Food Processing
  • Mixers and Reactors
  • ANSI/DIN Process Pumps
  • Vacuum Pumps
  • Specialty Equipment
  • Chemical Services
  • Food Grade Requirements
  • High Pressures/Temperatures
  • Cryogenic and Vacuum Services
Common Questions

Frequently Asked Questions

Value Added Services

Which series do I need?

The 1000 Series is a single cartridge pusher seal for standard and custom designs. The 2000 Series is a dual cartridge pusher seal for pump and mixer applications. The 3000 Series covers component and cartridge pusher seals custom engineered for specific applications. The 6000 Series is single and dual cartridge metal bellows. Use the selection guide above or send us the application.

Who makes ASI mechanical seals?

Fluid Sealing International (FSI), which manufactures high-quality mechanical seals in the USA and provides custom sealing solutions. ASI is a proud FSI distributor.

Do you repair mechanical seals?

Yes. ASI has a state-of-the-art mechanical seal repair facility, so seals are rebuilt in house and returned to service quickly without shipping out of state. AnchorSoft tracks run life and cost per day for every seal in your plant.

Are mechanical seals guaranteed?

All Anchor products are guaranteed free from defects in materials and workmanship. Because seal applications vary, operation in service is guaranteed only when ASI has specifically selected the seal for that application, which is why we ask for the full application details.

Anchor Seals Inc. can handle all your fluid sealing needs.

Anchor Seals Inc. can handle all your fluid sealing needs.