Overview
The SEPCO ML402 is a premium 3/8″ compression packing engineered for reliable sealing in rotating and reciprocating pumps, compressors, and valve equipment. This packing features a blend of synthetic fibers treated with specially formulated lubricants with a saxoline base, making it ideal for general industrial sealing where consistent performance and extended equipment life are required.
Key Features
- Multi-Lok braid construction with each strand individually coated with graphite and a final secondary surface coating of graphite
- Designed for general service on rotary and reciprocating equipment
- Lubricant formulation prevents wicking and delivers superior sealability
- Non-asbestos synthetic fibers for safe, long-lasting performance
- Individually tested and factory-sealed in original packaging
Technical Specifications
- Size: 3/8″ square braid
- Material: Synthetic fibers with graphite and lubricant coating
- Construction: Multi-Lok braid
- Maximum Temperature: 450°F (232°C)
- Maximum Shaft Speed: 1885 FPM
- pH Range: 4–10
- Coating: Graphite and saxoline-base lubricant
Typical Applications
The SEPCO ML402 is recommended for mild acids, alkalies, steam, brine, and oil applications. Common uses include:
- Centrifugal and positive-displacement pumps
- Rotating shaft sealing in compressors
- Valve stem and bonnet packing
- General industrial sealing services
- Equipment operating in mildly corrosive environments
Compatibility & Replacements
Compatible With
- Standard pump stuffing boxes with 3/8″ square cross-section
- Rotating and reciprocating shaft equipment
- Packing glands designed for braided synthetic packing
- Systems requiring non-asbestos sealing solutions
Replaces / Drop-In Replacement For
The SEPCO ML402 is a standard part number for this compression packing design. Verify compatibility with your equipment’s stuffing box dimensions and service requirements before ordering. Contact SEPCO at 205.403.7500 for alternative packing selections.
Works With
- Standard pump installation and packing gland designs
- Industrial fluid sealing systems (SEPCO family of packing products)
- Mechanical seal support rings and lantern rings
