Mechanical Seals
3000 Series
3B and 3B-1 Mechanical Seals
FSI 3B and 3B-1 mechanical seals are multiple-spring designed, available in both balanced and unbalanced configurations, for single, dual, or tandem conditions. Custom engineered to fit your operating conditions and equipment.
Custom Engineered for Demanding Equipment
FSI 3B and 3B-1 mechanical seals are multiple-spring designed, available in both balanced and unbalanced configurations. You can get a basic 3B and 3B-1 seal for single, dual, or tandem conditions.
3000 Series mechanical seals can be custom engineered to accommodate various operating conditions as well as a wide variety of different types of equipment.
The 3000 Series is the line to specify when a standard cartridge does not fit the service. Seal face designs and balance ratios are calculated for the application, and the seal can run as a rotating spring or flexible stator design depending on operating parameters.
* As always, consult your ASI representative for applications which approach or exceed these parameters.
Built Around Your Operating Parameters
Cartridge Mounted
Normally cartridge mounted for ease of installation and equipment accommodation.
Rotating Spring or Flexible Stator
Can be used as either a rotating spring design or as a flexible stator design depending on operating parameters.
Calculated Face Design and Balance
Required seal face designs and balance ratios can be calculated to ensure optimum performance.
API Plan 23 or 53 Ready
Can be furnished with pumping ring or circulating shroud for API Plan 23 or 53 operation.
Where the 3000 Series Runs
Refinery & Petrochemical Light Hydrocarbon Services
High Pressure Multistage Pumps
Circulating Water and Cooling Water Services
Boiler Feed Pump Applications
Specialty Equipment Applications
Complete the Piping Plan
Restriction Bushings and Lip Seals
Close clearance restriction bushings, floating throat bushings, and lip seals for use in conjunction with API Plans 21, 23, and 32.
Seal Reservoirs
A complete line of standard and custom designed seal reservoirs to support tandem and double seal operations per API Plans 52 and 53.
Heat Exchangers
Specifically sized and selected heat exchangers for proper seal cooling when using API Plans 21 and 23.
Bearing Isolators
Custom engineered bearing isolating devices for specialty equipment applications.
Other Mechanical Seal Series
All Mechanical SealsMechanical Seals 1000 Series
Single Cartridge Pusher Mechanical Seals for ANSI and DIN pumps.
View SeriesMechanical Seals 2000 Series
Dual Cartridge Pusher Mechanical Seals for pump and mixer applications.
View SeriesMechanical Seals 6000 Series
Single & Dual Cartridge Metal Bellows Mechanical Seals.
View Series