412-W
- Multi-Service Packing
Chesterton 412-W packing combines a newly developed synthetic composite yarn with a specially formulated break-in lubricant. Continuous filament center provides 10 times the tensile strength of typical packing fibers. Fibrous covering enables 412-W to absorb twice the PTFE blocking agents of conventional packings.
Chesterton interbraid construction helps prevent migration of blocking agents so that 412-W maintains density to prevent wicking throughout its service life. 412-W incorporates a purified colloidal lubricant to prevent failure at start-up and maintain continuous lubrication throughout the break-in process.
Chesterton 412-W packing is designed for shafts and rods against water, oil, steam, solvents, and mild acids and alkalies to 250˚C (450˚F) and shaft speeds 10 m/s (2000 ft/min), pH 4 – 10.
Product Features
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- Pure white packing constructed of exclusive ARG™ synthetic yarn
- Superior tensile strength for durability and extrusion resistance
- Unique fibrous structure holds twice the PTFE blocking agent of traditional fibers
Technical Data
| Applications | Paper mills, stock pumps, wastewater and sewage plants, municipal water plants, mining and slurry applications, water and brine pumps, marine services, oil field service, and drilling mud pumps, mild acid and alkali services, and knife gate valves due to superior conformability. |
|---|---|
| Speed Max | 10 m/s ( 2000 fpm ) |
| Presssure Limit | 17 bar g (250 psig) |
| Temperature Limit | 240°C (450°F) |
| Chemical Resistance | pH 4 – 10 |
| Size Low | 3.2 mm ( 0.125 inch ) |
| Size High | 25.4 mm ( 1 inch ) |
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