Specification of Gland Packing Chesterton
Chesterton 1724/324 PTFE Packing
Non-Hardening with Extraordinary Chemical Resilience
Chesterton 1724 is a unique PTFE valve packing material that is specially treated with protective lubricants that will not harden and do not deteriorate in various chemical applications. Valve testing has shown that high pressure is not capable of squeezing lubricants from the packing material of this interlocking valve.
Chesterton 324 offers the same construction in a square braid formation.
Temperature Limit 1724: 260 ° C (500 ° F)
324: 260 ° C (500 ° F)
Pressure limit 1724: 210 bar g (3000 psig)
324: 170 bar g (2500 psig)
Chemical Resistance pH 0 to 14
Application 1724: Air-operated valves, light and heavy hydrocarbon services
324: Valves handling steam, severe chemicals and lubricants
