CHESTERTON TYPE 425 GLAND PACKING

Specification of

425

Food Grade

Chesterton 425 is manufactured with a virgin PTFE filament and a white oil

lubricant. It is perfectly suited for use in valves and also in rotating equipment such

as blenders, mixers, agitators, and other rotating equipment. Chesterton 425

complies with the USDA requirements for minimal food contact and FDA

specification 21 CFR, 178.3620(a) for lubricants with incidental food contact

as well as 177.1550 perfluorocarbon resins

Technical Data

Temperature Limit:

230°C (450°F)

Shaft Speed:

6 m/s (1200 fpm)

Chemical Resistance:

pH 0 to 14

Applications:

All types of equipment in the

food processing and handling

industry, such as valves,

cookers, blenders, agitators,

pumps,

and mixers