Chesterton 377 CarbMax™ Packing Gland Packing Chesterton

Gland Packing
chesterton gland packing product
Chesterton 377 CarbMax™ Packing
Superior Carbon Fiber Packing


​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Chesterton 377 CarbMax™ packing combines one of the highest carbon content fiber yarns using the latest formulations with the newest blocking agents. This yarn provides the enhanced strength and toughness of a continuous multi-filament carbon fiber with additional increased durability. This makes the 377 firm, yet resilient, with high thermal conductivity over the conventional carbon packing.

Chesterton 377 incorporates a special formulated inorganic dispersion applied throughout the packing braid which prevents penetration and migration of gases or liquids. The inter-braid construction provides superior interlocking between all the strands of yarn with the additional blocking agents added to the composition of this unique mechanical packing.

Technical dataMaterials

Continuous filament carbon yarn with a non-silicone proprietary lubricant
Pressure Limit

34.5 bar g (500 psig)
Shaft Speed

15 m/s (3000 fpm)
Temperature Limit
288°C (550°F)
​Chemical Resistance
pH 1 – 14 (except strong oxidizers)