Overview
Sepco ML2001 is a braided flexible graphite packing designed for critical pump and valve sealing applications. Multi-Lok braided flexible graphite packing is bonded to a fiberglass carrier for strength and thermal stability. This product has no added lubricants or binders to cook out or become brittle. This packing style replaces the PM3-ML2001 206864-1-1/2 and is ideal for volatile organic chemical service, nuclear applications, and extreme temperature environments.
Key Features
- Recommended for rotating shafts where high shaft speeds and thermal conductivity are required; operates at shaft speeds to 4000 FPM
- Passes API 607 fire test; operates at temperatures to 1200°F/649°C (in steam) and 850°F/454°C (in oxidizing conditions)
- Recommended for pumps and valves operating in volatile organic chemical applications
- Pure homogenous graphite bonded to a fiberglass carrier provides superior thermal performance
- Available in multiple sizes and treatment options (standard, zinc-inhibited ML2001Z, and phosphorus-inhibited ML2001P)
- Wide pH compatibility range (0–14 except strong oxidizers)
Technical Specifications
- Material: Flexible braided graphite with fiberglass carrier (Multi-Lok construction)
- Max Shaft Speed: 4000 FPM (unlimited with proper lubrication)
- Max Temperature: 850°F / 454°C (oxidizing conditions); 1200°F / 649°C (steam)
- pH Range: 0–14 (except strong oxidizers)
- Service: Pumps, valves, rotating equipment
- Industry Applications: Chemical processing, oil & gas, power generation, marine, nuclear, pulp & paper
- API Compliance: Passes API 607 fire test
Typical Applications
Sepco ML2001 graphite packing is used in chemical processing, equipment manufacturing, marine & dredging, mining, nuclear, oil & gas, power generation, and pulp & paper industries. This packing is ideal for:
- Centrifugal and rotary pump sealing
- Control valve and gate valve packings
- High-temperature steam service
- Agitator and mixer shafts
- Compressor and turbine applications
Compatibility & Replacements
Compatible With
- All standard pump and valve stuffing boxes
- Industrial centrifugal pump designs (API Plan 53A)
- Rotary and reciprocating shaft equipment
- Vacuum and positive pressure applications
- Compatible with industry-standard lantern rings and gland hardware
Replaces / Drop-In Replacement For
- PM3-ML2001 206864-1-1/2 graphite packing
- Equivalent OEM graphite packing styles across pump manufacturers
- Previous generation flexible graphite packings in similar service
Works With
- Standard packing glands and stuffing box assemblies
- Mechanical seal backup packing applications
- SEPCO packing lubricants and accessories (PAK-LUBE, lantern rings, seat rings)
- Compatible with both water and oil-based packing lubricants
