2211 DualPac Severe Slurry Packing
Chesterton DualPac™ 2211 mechanical packing is built to address these issues by combining two complimentary materials in one packing.
Using Chesterton's patented braiding technology graphite filled ePTFE can be placed against the shaft where it provides superior sealing and low friction, and a high strength and resiliency aramid is placed against the stuffing box bore to resist consolidation without shaft wear. Both lab and field tests have shown that DualPac requires fewer gland adjustments, resulting in drastically extended life in severe service applications.
Until now selecting the correct packing for your application has been a balancing act between different materials. Aramids are tough and resilient but have high friction and fret shafts and sleeves, and PTFEs are extremely low friction and kind to shafts but can consolidate and extrude. All of these issues cause a loss of compression, resulting in leakage and requiring packing adjustments.
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Brochures & Datasheets
Brochures
Installation & Operation Manuals and Technical Literature
Technical Data
Maximum Temperature:
500°F
Maximum Shaft Speed:
2000fpm
Chemical Resistance:
pH 4-11
See product datasheet for additional details