O-Rings / Gland Design / Temperature range
Gland design for o-ring seals
examples of applications
influence of deformation and cross-section
how o-rings work
advantage of grooves (positive/non-positive connections
general requirements
o-ring housings
proper squeeze
example for calculation
comparison with alternative profiles
surface roughness
leak tightness and how to test it
assembly hints
acceptable pressure range
special gland designs
sealing with plastic parts
deformation forceCalculation exercises
Temperature range of different Elastomers
Behavior of elastomers at low temperatures
influence on the sealing ability
different low-temperature testing procedures
results of low temperature sealing tests on different materials
cycling temperatures
typical low- and high-temperature limits of different elastomers based on NBR-, HNBR-, EPDM-, FKM and MVQ-polymers
influence of compoundingCompatibility check
test-methods and test-criteria
available medium-compatibility tables
influence of recipe and polymer
influence of temperature and concentration
examplesLong-term behavior of o-ring seals
shelf-life
influence of temperature
ultraviolet radiation and ozone
lifetime-curve according to Arrhenius
life-time criteria
evaluation of long-term tests on NBR- and EPDM O-rings
influence of the cross-section
further published results of life-time tests
how to prevent chemical or physical overstressingApplication-oriented information from A to Z
wear
Ageing
thermal coefficient
compression set resistance
compatibility against hydraulic fluids
elastomers for extreme hot water applications
permeation coefficients
optimizing gas-tightness
vacuum applications
electric properties
reasons of corrosion
gough-joule effect
swelling behavior
floating o-ring seals
coatings to reduce friction
tensile strength
radiation resistance
deformation forces
influence of deformation speed and temperature
plastic compatibility
resistance against CIP- and SIP-media