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Graphite packing impregnated with PTFE type EGP

Products > Packings for pumps and valves > Graphite packing impregnated with PTFE type EGP

Packing braided of yarn, of expanded pure graphite led on cotton thread impregnated with PTFE dispersion. Expanded graphite owing to its thermal, chemical resistance, self-lubricating properties of and good thermal conductivity is perfect for woven packings both for rotational pumps and fittings. PTFE impregnation causes substantial decrease in working temperature of sealing, however, it significantly improves the friction coefficient and installation in chokes of pumps. Packing is more softly laid in the choke.

Application

Packing is used in chokes of pumps and valves in many branches of industry e.g. in chemical, power and paper industry. 

Technical parameters

DESCRIPTION OF PARAMETER

VALUE

TYPE

EGP

Maximum operation temperature in °C

280

Minimum use temperature in °C

- 100

Type of reinforcement

-

Density in g/cm3

1,3 ± 15 %

Compressibility in %

≥ 15

Scope of pH

0 – 14

Centrifugal pumps

p=25 bar

v=20 m/s

Fittings

p=150 bar

v=2 m/s

Colour

black

Dimensional range in mm

6 – 30

Special versions

EGP+R – with elastomer core

Commercial packaging

6-16 mm – roll at least 2 kg
17-30 mm – roll at least 5 kg