thoenes ® P639 - PTFE-graphite yarn packing
€190.04
Delivery time: 3-4 weeks
Technical details
- Max. continuous temp.
- 250 °C
- Short-term temp.
- 280 °C
- Pumps (p / vg)
- 25 bar / 20 m/s
- Pistons (p / vg)
- 200 bar / 2.0 m/s
- Valves (p / vg)
- 100 bar / 1.5 m/s
Selected: 25 x 25 mm · quadratic · Item no. P639LE0250025001
Product information "thoenes ® P639 - PTFE-graphite yarn packing"
The thoenes ® P639 – PTFE-graphite yarn packing consists of graphite-filled PTFE multifilament fibres.
Key properties :
- Good pressure resistance,
- Low coefficient of friction,
- High cross-sectional density and structural strength,
- Non-flammable,
- Extremely resistant to bases, alcohols, ketones, petrol and oils,
- Not resistant to very strong reducing agents such as solutions of alkali metals in liquid ammonia or to very strong oxidising agents.
PTFE multifilament fibres
- Max. continuous temperature 250 °C,
- Short-term exposure to 280 °C possible.
Applications
Universal use in centrifugal pumps, control valves, special designs in the food industry, chemical and pharmaceutical sectors, and in mixers and agitators.
Supply forms :
- Round, square or rectangular design,
- Dimensions: 3–25 mm (other dimensions on request).
