PTFE (polytetrafluoroethylene), also known as Teflon, is a perfect sealant. Its good heat resistance up to 280°C, outstanding chemical resistance and low friction coefficient permit application of PTFE yarn both in stuffing boxes of pumps and fittings. Addition of incorporated graphite improves thermal conductivity and reduces tendency of PTFE to squeeze in gaps between the shaft or the spindle and stuffing box enclosure.
6080 | parameter | functional parameters | Description | |||
---|---|---|---|---|---|---|
Packing of pure, fibrous PTFE yarn without any additives nor lubricants | ||||||
T max [⁰C] | – 150 to 280 | |||||
P max [bar] | 8 | 60 | 150 | |||
V max [m/s] | 8 | 2 | 2 | |||
PH | 0 – 14 | Dimension range | 4 – 30 mm | |||
6081 | parameter | functional parameters | Description | |||
Braided packing of pure fibrous PTFE soaked in an impregnate based on silicon oil | ||||||
T max [⁰C] | – 200 to 280 | |||||
P max [bar] | 20 | 80 | 20 | |||
V max [m/s] | 10 | 2 | 1 | |||
PH | 0 – 14 | Dimension range | 4 – 30 mm | |||
608 | parameter | functional parameters | Description | |||
Packing of fibrous PTFE yarn with incorporated graphite and soaked with silicon oil. | ||||||
T max [⁰C] | – 200 to 280 | |||||
P max [bar] | 20 | 100 | 100 | |||
V max [m/s] | 10 | 2 | 2 | |||
PH | 0 – 14 | Dimension range | 4 – 30 mm | |||
6084 | parameter | functional parameters | Description | |||
Packing made of fibrous PTFE yarn with incorporated graphite and large quantities of silicon oil. | ||||||
T max [⁰C] | – 200 to 280 | |||||
P max [bar] | 20 | 60 | 80 | |||
V max [m/s] | 15 | 1 | 1 | |||
PH | 0 – 14 | Dimension range | 4 – 30 mm |