Catalogue 2017

Article list Seals - Paul Gothe GmbH, Wittener Straße 82, 44789 Bochum
Art.-No.
Di-P-M.
Di-P-MG.
Di-P-T.
Text
Packing cord mineral fibre
Ø 4 mm, temperature-constant up to 400° C, unit: meter, weight: ~ 50 g / m
Packing cord Graphitize mineral fibre
Ø 4 mm, temperature-constant up to 500° C, unit: meter, weight: ~ 50 g / m
Packing cord PTFE
Ø 4 mm, temperature constant to 200° C, weight: ca. 0,02 kg / m. Unit: meter
Material of the seals available in:
- Aramid composite material (max. 400°C *) .............................................. Art. No: Di + M
- Aramid composite material graphitized (max. 400°C *) ........................... Art. No: Di + G
- Teflon (max. 220°C *) .............................................................................. Art. No: Di + T
- Silicone (max. 200°C) ............................................................................... Art. No: Di + S
- Nyhalit (max. 300°C *) ............................................................................. Art. No: Di + N
Information to the sealing-material:
Aramid-composite material: Aramid
(known as Kevlar) is a high
temperature-stable aromatic Polyamide
fibre. These fibre don't melt, it is
resistant against acids and organic
solvents. Through admix of softeners
(e.g. Rubber) the fibre stuck together
and can use as seals. This mixture loses
their softeners from 150°C and
becomes fragile. The function as seal is
still given until 400°C. After this
thermal treatment, the seal can use not
a second time, they are too brittle. By
the treatment with graphite, the
evaporation of the softeners is clearly
delayed and the seal consequently
reach a longer temperature-stability.
Nyhalit: Material of Nyhalit becomes
fragile at application until 300°C and
cannot use a second time.
Teflon: Teflon is thermal stable until
250°C, becomes very soft from 200°C
however and cannot use as a safe seal.
Ø45
Di 13
Di 12
Ø50
Di 14
Di 15
Di 8
Ø45
Di 13
Di 12
Di 11
Di 35
Di 8
Ø45
Di 13
Di 12
Di 11
Di 35
Di 8
Date: 28.01.2016 Page: 4