Graphite Packing
ML 4444 Graphite Packing
- Construction: Multi-Lok Braid
- Features: The highest quality chemically resistant graphite yarns are twisted together and braided in a Multi-Lok fashion. This packing has an extremely low coefficient of friction and the light weight yarn provides more feet of length per pound than standard non-asbestos or PTFE packings. Graphite is a heat conductor and dissipated heat in the stuffing box, permitting higher shaft speeds and less leakage than other packings.
- Equipment: All rotating and reciprocating shafts, valves and agitators. Our best packing for top separators and outlet devices on continuous pulp digesters.
- Recommended For: Strong caustics, acids, chemicals and high pressure steam.
- Limitations: Temperatures to 1200°F/649°C in steam, 800°F/427°C in oxidizing atmospheres; pH range 0 – 14; not recommended for fuming nitric acid, oleum, and fluorine.
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ML 4500 Ultra-Graphite Packing
- Construction: Multi-Lok Braid
- Features: Manufactures from pure graphite yarns impregnated with a fine submicron powder of inorganic graphite. A surface lubricant is applied to prevent wicking and to provide a bearing film between the shaft and the packing material.
- Equipment: Valves, high speed shafts, agitator shafts, reciprocating rods and plunger rods wherever minimum product leakage is required under severe service conditions.
- Recommended For: Strong acids and strong caustics throughout the pH range. It is virtually inert.
- Limitations: Not recommended for oleum, fuming nitric acid and flourine; temperatures to 6000°F/3316°C in non-oxidizing agents, 1200°F/649°C in steam, and 800°F/427°C in oxidizers. Can Be Nuclear Certified.
Contact us now to learn more about ML 4500 Ultra-Graphite Packing.