Page 76 - GarlockFluidSealing2010

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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
TemperatureMax. +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