
FBU PREMIUM CARTRIDGE SEALS | ANSI PUMP SOLUTIONS

G Series Mechanical Seals
High-performance single mechanical seal, ideal for high speed, high temperature, high pressure and frequent start-stop conditions, compatible with ANSI and process pumps
E Series Mechanical Seals
Installs exactly like your current seal.No adjustment. No modification. No lead-time delays.Lower cost. Equal service life

Core Advantages & Design Concept
G Series
Pressure:≤ 2.5 Mpa Temperature:≤ 392℃ Speed:≤ 25 m/s
E Series
Pressure:≤ 1.6 Mpa Temperature:≤ 120℃ Speed:≤ 20 m/s
GSM/GSMA
Stationary ring compensation design:
Stable running performance, dependable under high-pressure & high-speed working conditions
Multi-spring uniform loading layout:
Reduced abrasion, effectively extending overall service life
Pre-assembled cartridge construction:
Plug-and-drop installation without alignment or pump modification
Metal drive plus protective shaft sleeve:
Prevents pump shaft abrasion & damage, cutting down maintenance expenditure
Compatible with standard API flush plans:
Excellent heat dissipation, anti-fouling & resistant to fine grit impurities
Full interchangeability for ANSI process pumps:
Identical installation size, direct drop-in replacement without machining
ESM/ESMA
Standard cartridge seal for ANSI pumps:
True no-alignment, no-setup, drop-in installation
Multiple springs for even loading:
Stable pressure, low friction, long service life; reliable in high-pressure and fluctuating conditions
Hydraulically balanced design:
Consistent performance under high pressure, stable at high temperatures; rated to 1.6 MPa / 120°C
Outboard spring configuration:
Springs isolated from process fluid, resistant to fouling, clogging, and abrasive particles
Shaft-protecting sleeve + metal-to-metal drive:
No shaft wear, no shaft damage, reduces pump maintenance costs
Perfectly fits Goulds 3196 / Mark III:
100% interchangeable mounting dimensions; no modifications required, direct drop-in replacement
GDM/GDMA
Double containment construction:
Zero-leakage performance to satisfy safety and environmental standards
Integrated pumping ring design:
Self-circulation cooling with no external power required
Dual balanced multi-spring layout:
Stable operation amid fluctuating working pressure
Oversized internal flow passages:
Anti-crystallization & anti-blockage against fiber and solid impurities
Modular assembled structure:
Easy fitting, interchangeable spares and reduced maintenance cost
Matches mainstream buffer fluid systems:
Proven adaptability for harsh and severe service conditions
EDM/EDMA
Double cartridge seal compliant with ANSI B73.1:
High safety rating, zero leakage for hazardous process media
Dual balanced multi-spring structure:
Uniform load distribution, low heat generation and extended service life
Compatible with API Plan 52/53/54:
Direct hookup for existing buffer tank systems, no pipe rework needed
Oversize flow passages for anti-clog & anti-crystallization:
Superior durability vs standard double seals for crystalline and particle-laden fluids
Full dimensional match for ANSI pump housings:
Available for standard/taper/large bore, CBS/FML/CBL seal chambers
Seals & API Configurations for Leading Pump Brands

Glouds
ESM /GSM : Plan 11, Plan 12
EDM : Plan 52, Plan 54
GDM : Plan 52, Plan 53, Plan 54

Flowserve
ESM /GSM : Plan 11, Plan 12
EDM : Plan 52, Plan 54
GDM : Plan 52, Plan 53, Plan 54

Sulzer
ESM /GSM : Plan 11, Plan 12
EDM : Plan 52, Plan 54
GDM : Plan 52, Plan 53, Plan 54
Typical Application Scenarios

Power Generation
Thermal / Nuclear / Cogeneration

Chemical Industry
Highly corrosive /viscous/solids

Petrochemical & oil and gas industry

Pulp & Paper
Black liquor, white liquor, fibrous slurries, and process water

Mining & Minerals
Slurries, leach solutions, and abrasive media

Fisheries & Aquaculture
Seawater/freshwater circulation, aquaculture systems, and saltwater handling

Water & Wastewater
Raw water, treated effluent, sludge, and cooling water systems

Food & Beverage / Pharma
Sanitary process fluids and low-contamination applications

Sugar & Ethanol
Syrups, molasses, and high-fiber process fluids