Specification of

Chesterton 1622
Low E Control Packing for Block Valves
Chesterton 1622 Low E Packing is designed to minimize valve emissions
and it exceeds current emissions requirements for the refinery, petrochemical,
and chemical industries. 1622 has received both the National Pollution
Prevention Roundtable MVP2 and Vaaler Award for emission and pollution
reduction technology.
Guaranteed* to seal less than 100 ppm for 5 years per EPA method 21.
1622
Technical Data
Material Inconel® wire-reinforced, flexible graphite packing with special
blocking agents
Applications Light and heavy hydrocarbons, VOCs, VHAPs, steam, and most
non-oxidizing chemicals
Pressure Limit 345 bar g (5000 psig)
Temperature Limit Max 650°C (1200°F) steam, 450°C (850°F) oxidizing atmosphere
Chemical Resistance pH 0 – 14 except in strong oxidizers