NA 781

A pure PTFE filament packing impregnated with PTFE

  • Manufactured from the purest PTFE yarns to give a soft resilient packing with high dimensional strength, low co-efficient of friction, good chemical resistance and inertness to most media
  • Special PTFE impregnation, the packing contains no oil
  • Ideal for valves and slow shaft speed applications
  • Food Grade available

Available in rope and ring form

Service Media and Conditions Highly corrosive chemicals, ammonia charge pumps and carbonate recycle pumps, strong as well as weak acid and alkali, chemicals, foodstuffs, pharmaceutical industry applications, drinking water, hydrogen etc
Temperature -200┬░C to 280┬░C
Pressure 200 bar (static), 20 bar (rotary), 175 bar (reciprocating)
Shaft Speed 5 m/sec (rotary), 2 m/sec (reciprocating)
pH 0 to 14
Applications Valves, plunger pumps, slow rotary/reciprocating pumps, agitators, mixers, filters, blenders, cookers, vacuum dryers etc
Flags Highly corrosive chemicals