Chemical Engineering April 2013 - 31

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2013 O
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PATENTS RECEIvED & PENDING
Circle 18 on p. 68 or go to adlinks.che.com/45771-18
Precision Polymer Engineering
ment operating or stored
in
sub-zero
conditions,
Perlast ICE
G75LT is suitable
for both dynamic
and static
applications
and can
be fully molded
into O-rings (any
size up to 2.5-m
internal dia.) and cusRepack-S
NSF
61, as well as German, British
and French standards. The material
also meets U.S. Food and Drug Amin.
standards for both food and pharmaceutical
products, and has USP Class
VI approval for its high purity. -
Freudenberg Process Seals GmbH &
Co. KG, Weinheim, Germany
www.freudenberg-process-seals.com
Cold is okay for this
chemically resistant elastomer
The Perplast ICE G75LT offers a
combination of " excellent " chemical
resistance and low-temperature performance.
This perfluoroelastomer
material has been specifically developed
to perform under extreme conditions,
in temperatures as low as -40°C
or lower. The elastomer has been formulated
to provide increased resistance
to a broad range of chemicals by
carefully controlling the molecular architecture.
Also, this material has low
permeability and as a result, it is less
prone to swelling, leading to extended
in-service performance in valves,
pumps and mechanical seals. Said
to be ideal for use in exploration and
completion applications, and equiptom
shapes. - Precision Polymer Engineering
Ltd., Blackburn, England
www.prepol.com
This composite improves
hydraulics sealing performance
High-frequency, hydraulics cylinder
operation is particularly demanding
on seals. Traditional wedge-profiled
PTFE composite seals are prone to
early failure under the effect of repetitive
short strokes and often dryrunning
conditions. This French seals
maker has developed a better alternative
- the Danastep HF seal (photo).
It uses a modified PTFE seal profile
by adding a back heel for additional
stability, as well as a rectangular elastomer
energizer, making it impossible
for the PTFE seal to tilt and break free.
CHEMICAL ENGINEERING WWW.CHE.COM APRIL 2013 31
R
P
A
R
E
O
D
E
U
H
C
TM
T
T
F
Y

http://www.TORQUEGUN.COM http://adlinks.che.com/45771-18 http://www.prepol.com http://www.freudenberg-process-seals.com http://WWW.CHE.COM

Chemical Engineering April 2013

Table of Contents for the Digital Edition of Chemical Engineering April 2013

Contents
Chemical Engineering April 2013 - Cover1
Chemical Engineering April 2013 - Cover2
Chemical Engineering April 2013 - Contents
Chemical Engineering April 2013 - 2
Chemical Engineering April 2013 - 3
Chemical Engineering April 2013 - 4
Chemical Engineering April 2013 - 5
Chemical Engineering April 2013 - 6
Chemical Engineering April 2013 - 7
Chemical Engineering April 2013 - 8
Chemical Engineering April 2013 - 9
Chemical Engineering April 2013 - 10
Chemical Engineering April 2013 - 11
Chemical Engineering April 2013 - 12
Chemical Engineering April 2013 - 13
Chemical Engineering April 2013 - 14
Chemical Engineering April 2013 - 15
Chemical Engineering April 2013 - 16
Chemical Engineering April 2013 - 17
Chemical Engineering April 2013 - 18
Chemical Engineering April 2013 - 19
Chemical Engineering April 2013 - 20
Chemical Engineering April 2013 - 21
Chemical Engineering April 2013 - 22
Chemical Engineering April 2013 - 23
Chemical Engineering April 2013 - 24
Chemical Engineering April 2013 - 25
Chemical Engineering April 2013 - 26
Chemical Engineering April 2013 - 27
Chemical Engineering April 2013 - 28
Chemical Engineering April 2013 - 29
Chemical Engineering April 2013 - 30
Chemical Engineering April 2013 - 31
Chemical Engineering April 2013 - 32
Chemical Engineering April 2013 - 33
Chemical Engineering April 2013 - 34
Chemical Engineering April 2013 - 35
Chemical Engineering April 2013 - 36
Chemical Engineering April 2013 - 37
Chemical Engineering April 2013 - 38
Chemical Engineering April 2013 - 39
Chemical Engineering April 2013 - 40
Chemical Engineering April 2013 - 41
Chemical Engineering April 2013 - 42
Chemical Engineering April 2013 - 43
Chemical Engineering April 2013 - 44
Chemical Engineering April 2013 - 45
Chemical Engineering April 2013 - 46
Chemical Engineering April 2013 - 47
Chemical Engineering April 2013 - 48
Chemical Engineering April 2013 - 49
Chemical Engineering April 2013 - 50
Chemical Engineering April 2013 - 51
Chemical Engineering April 2013 - 52
Chemical Engineering April 2013 - 53
Chemical Engineering April 2013 - 54
Chemical Engineering April 2013 - 55
Chemical Engineering April 2013 - 56
Chemical Engineering April 2013 - 57
Chemical Engineering April 2013 - 58
Chemical Engineering April 2013 - 59
Chemical Engineering April 2013 - 60
Chemical Engineering April 2013 - 61
Chemical Engineering April 2013 - 62
Chemical Engineering April 2013 - 63
Chemical Engineering April 2013 - 64
Chemical Engineering April 2013 - 65
Chemical Engineering April 2013 - 66
Chemical Engineering April 2013 - 67
Chemical Engineering April 2013 - 68
Chemical Engineering April 2013 - 69
Chemical Engineering April 2013 - 70
Chemical Engineering April 2013 - 71
Chemical Engineering April 2013 - 72
Chemical Engineering April 2013 - 73
Chemical Engineering April 2013 - 74
Chemical Engineering April 2013 - Cover3
Chemical Engineering April 2013 - Cover4
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