Page 70 - GarlockFluidSealing2010

C-10
AGRI-GARD™ Style 2676 MULTI-SWELL™
Style 3760
Benefts
Notes:
1 Based on ANSI RF fanges at our
preferred torque. When approaching
maximum pressure, continuous operat-
ing temperature, minimum temperature
or 50% of maximum PxT, consult Garlock
Engineering.
2 ASTM F37B Sealability, milliliters/hour
(1/32" thick)
ASTM Fuel A (isooctane):
Gasket load = 500 psi (3.5 N/mm2),
Internal pressure = 9.8 psig (0.7 bar)
Nitrogen:
Gasket load = 3,000 psi (20.7 N/mm2 ),
Internal pressure = 30 psig (2 bar)
3 DIN 3535 Part 4 Gas Permeability,
cc/min. (1/16" thick)
Nitrogen:
Gasket load = 4,640 psi (32 N/mm2 ),
Internal pressure = 580 psig (40 bar)
4Saturated steam service guidelines:
• For optimal performance, use thinner
gaskets when possible.
• Minimum recommended assembly
stress = 4,800 psi.
• Preferred assembly stress = 6,000 psi
to 10,000 psi.
• Retorque the bolts/studs prior to pres-
surizing the assembly. Never
retorque a pressurized assembly.
• If the service is superheated steam,
contact Applications Engineering.
Benefts
Ideal for ethanol industry
¦ Designed to excel in saturated steam, water, oils,
fuels—over 90% of industry applications
High performance
¦ Inorganic fber gasketing offers excellent thermal sta-
bility with minimal weight loss
¦Reduced creep relaxation and improved torque reten-
tion ensure optimal sealability
This is a general guide and should not be the sole
means of selecting or rejecting this material. ASTM
test results in accordance with ASTM F-104;
properties based on 1/32" (0.8mm) sheet thickness. * Values do not constitute specifcation limits
Typical Physical Properties*
2676 3760
Color Grey Blue/off-white
Binder Nitrile (NBR) Proprietary
Temperature1 Minimum -100°F (-75°C) -40°F (-40°C)
Continuous max. +550°F (+290°C) +400°F (+205°C)
Pressure, max.1 psig (bar) 1,200 (83) 500 (35)
P x T, max. 1 (psig x °F) 1/32", 1/16" 400,000 150,000
(bar x °C) (0.8mm, 1.6 mm) (14,000) (5,100)
1/8" 275,000 100,000
(3.2 mm) (9,600) (3,400)
Sealability (ASTM F37B)2
ASTM Fuel A ml/hr 0.2 0.15
Nitrogen ml/hr 1.0 0.20
Gas Permeability
(DIN 3535 Part 4)3 cc/min. 0.05 –
Creep Relaxation (ASTM F38) % 15 30
Compressibility Range
(ASTM F36) % 7-17 15-30
Recovery (ASTM F36) % >50 40
Tensile Strength across grain
(ASTM F152) psi (N/mm2) 1,500 (10) 1,000 (6.9)
Fluid Resistance (ASTM F146 @ 5 hours)
ASTM #1 Oil at +300°F (+150°C)
Thickness increase, Typ., % – =15
Weight Increase, Typ., % – 30
ASTM IRM #903 Oil at +300°F (+150°C)
Thickness increase, Typ., % – 75
Weight Increase, Typ., % 85
Dist. H2O +70-85°F (20-30°C)
Thickness increase, Typ., % – 40
Density 1/32" (0.8 mm) thk lbs/ft 3 (g/cm3) 110 (1.76) 85 (1.36)
Ultra-tight seal in water and oil applications
¦ Proprietary formulation creates additional gasket load
when the gasket comes in contact with oil or water
¦ Twice as compressible as standard fber gaskets -
conforms to irregular surfaces
Versatile
¦ Stops leakage in:
• Gear boxes
• Compressors
• Pumps
• Lube oil systems
• Access covers
† Thickness measured with a 9 oz. weight be-
fore immersion and 3 oz. after immersion.
LEAK-GARD™ Style 3750 is also
available exclusively for oil-swell
applications.