Braided packing - PowerPoint PPT Presentation

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Braided packing

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PTFE packing, Graphite packing, carbon fiber gland packing, aramid packing, Kevlar packing, phenolic packing, Ramie Gland Packing, Gland Packing Ring, Acrylic Gland Packing. – PowerPoint PPT presentation

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Date added: 9 February 2025
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Title: Braided packing


1
Calculation method
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2
HYPERLINK "https//www.cn-sealinggasket.com/non-as
bestos-gasket/" \o "non-asbestos gasket" \t
"https//www.cn-sealinggasket.com/compression-of-a
sbestos-free-gaskets-and-calculation-formulas/_bla
nk" Asbestos-free gasket s compress 5-15. The
specific compression depends on pressure,
temperature, density,
3
and thickness. Compression is the percentage
reduction in a gaskets thickness under
compression. Asbestos-free gasket compression
depends on density, pressure, and temperature.
Generally speaking, the lower the compression
rate, the better the sealing performance.
4
Influencing factors The greater the pressure that
subjects the gasket, the more it will compress.
Temperature Changes in working temperature will
affect the gasket. This will influence its
compression.
5
Density and thickness Both affect the gaskets
compression. Gaskets with higher density and
greater thickness usually have less compression.
6
Calculation method
To calculate the compressibility and resilience
of non- HYPERLINK "https//www.cn-sealinggasket.co
m/asbestos-gasket/" \o "Asbestos gasket" \t
"https//www.cn-sealinggasket.com/compression-of-a
sbestos-free-gaskets-and-calculation-formulas/_bla
nk" asbestos gaskets , use this formula
7
Calculation method
Among them, (hi) is the original gasket
thickness. (he) is the thickness after
compression. (hd) is the thickness after
compression and rebound. Selection of the appropri
ate compression amount. The compression amount for
asbestos-free gaskets must suit the application.
The compression rate needs to be a bit more than
the space between the gasket and the flange
surface. To ensure the effect,
8
Calculation method
select a good compression rate. It must keep the
sealing performance stable. Influence of productio
n process parameters The pH of the pulp, sizing te
mp, and drying temp affect asbestos-free gaskets.
For example, when the pulps pH is below 9,
9
Calculation method
a higher pH lowers the compression rate. But it
boosts the tensile strength. At a sizing
temperature of 35?, the fibers bond. The adhesive
filler is ideal, and performance is best. A
higher drying temperature will reduce the
gaskets compression rate. It will increase its
tensile strength and aging coefficient.
10
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