Page 76 - GarlockFluidSealing2010

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C-16
STRESS SAVER
®
Benefts
Tighter seal
¦
Raised, molded-in sealing rings seal with 75% less
surface area for high performance in
non-metallic fanges
STRESS SAVER
®
Style 370
Chemical resistance
¦
Pure PTFE sealing surface resists many chemicals
High purity
¦
Contaminant-free EPDM is ideal for pure
service—electronics,* pharmaceutical and
food industries**
¦
Proprietary process bonds PTFE to
elastomer, won’t delaminate or leach
¦
Special packaging for high-purity applications
STRESS SAVER
®
Style 6800
Economical
¦
More economical gasket where a PTFE envelope is
not required.
Flat face fanges strongly recommended.
* Tested by BALASZ Labs for trace metal extractables, Anions, Cations
and T.O.C.s. Results available on request.
** Consult Garlock Applications Engineering for FDA information.
Questions? Call Gasket Applications
Engineering at 1-800-448-6688.
Typical Physical Properties
STRESS SAVER
®
Style 370
Style 6800
XP
Construction
100% Pure PTFE
EPDM only
Proprietary blend
bonded to EPDM
(65 durometer) of fuoroelastomers
(70 durometer)
Color
PTFE: Sky blue
EPDM: Off-white
Black
Temperature
Max. +300°F (+150°C) +300°F (+150°C) +400°F (+204°C)
Min.
-40°F (-40°C)
-40°F (-40°C)
-15°F (-26°C)
Pressure, max
psig
250
250
250
(bar)
(17)
(17)
(17)
P x T, max
. (psig x °F)
50,000
50,000
50,000
(bar x °C)
(1717)
(1717)
(1717)
Media
Style 370:
Acids, caustics, gases, water, hydrocarbons
Style 6800:
Water, very mild acids and caustics
Style XP:
Water, steam, most hydrocarbons, gases,
solvents, acids, and alcohol
STRESS SAVER
®
XP
Tighter seal
¦
Lower seating stress than expanded or specialty PTFE
gaskets; ideal for nonmetallic fanges
Chemical resistance
¦
High-performance fuoroelastomer has greater resis-
tance to severe chemicals than standard fuoroelasto-
mers
Outperforms PTFE envelope gaskets
¦
Won't fail due to fller attack
¦
Eliminates envelope foldover during installation