Garlock 3700 User Manual
MATERIAL PROPERTIES
*
Color: Light grey
Composition: Aramid fibers with a EPDM binder
Fluid Services1:
Water, saturated steam4, and mild chemicals
Temperature2, °F (°C)
Minimum: -100 (-73)
Continuous Max: +400 (+205)
Maximum: +700 (+371)
Pressure2, Maximum, psig (bar):
1200 (83)
P x T (max.)2, psig x °F (bar x °C)
1/32 and 1/16": 350,000 (12,000)
1/8": 250,000 (8,600)
TYPICAL PHYSICAL PROPERTIES
*
ASTM F36
Compressibility, range, %:
7-17
ASTM F36
Recovery, %:
40
ASTM F38
Creep Relaxation, %:
25
ASTM F152
Tensile, Across Grain, psi (N/mm2):
2500 (17)
ASTM F1315
Density, lbs./ft.3 (grams/cm3):
100 (1.60)
ASTM F433
Thermal Conductivity (K), W/m°K (Btu.·in./hr.·ft.
2
·°F):
0.29-0.38 (2.00-2.65)
ASTM D149
Dielectric Properties, range, volts/mil.
Sample conditioning 1/16" 1/8"
3 hours at 250°F: 451
(3)
-620 291
(3)
96 hours at 100% Relative Humidity:
13471ASTM F586 Design Factors 1/16" & Under 1/8"
"m" factor: 3.5 6.7
"y" factor, psi (N/mm2):
2800 (19.3) 4200 (28.9)
ROTT
Gasket Constants, 1/8":
Gb=1,318 a=0.258 Gs=0.60
ASTM F104
Line Call Out:
F712902A9B4E99K5L104M9
(5)
SEALING CHARACTERISTICS
*
Gasket Load, psi (N/mm2):
Internal Pressure, psig (bar):
Leakage
IMMERSION PROPERTIES*- ASTM F146 Fluid Resistance after Five Hours
Notes:
3
Indicates current arced around and not through gasket. Dielectric higher than indicated.
4
These styles are not preferred choices for steam service, but are successful when adequately compressed. Minimum recommended assembly stress
= 4,800psi. Preferred assembly stress = 6,000-10,000psi. Gasket thickness of 1/16" strongly preferred. Retorque the bolts/studs prior to pressurizing
the assembly. For saturated steam above 150psig or superheated steam, consult Garlock Engineering.
5
Fourth numeral 9: % Thickness Increase in IRM Oil #903 = 60-100% max. A9: Leakage in Fuel A (Isooctane), Gasket Load = 500psi (3.5N/mm2),
Pressure = 9.8psig (0.7bar): Typical = 0.1ml/hr, Max = 1.0ml/hr. A9: Leakage in Nitrogen, Gasket Load = 3,000psi (20.7N/mm2), Pressure = 30psig
(2bar): Typical = 0.7ml/hr, Max = 2.0ml/hr. E99: % Increase in ASTM Fuel B: Weight: 100% max., Thickness: 20-50% max. M9: Tensile Strength =
2,250psi min. (15N/mm2 min.).
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 unless otherwise mentioned.
* Values do not constitute specification Limits
1
See Garlock chemical resistance guide.
2
Based on ANSI RF flanges at our preferred torque. When approaching maximum pressure, continuous operating temperature, minimum temperature
or 50% of maximum PxT, consult Garlock Applications Engineering. Minimum temperature rating is conservative.
500 (3.5)
3000 (20.7)
4640 (32)
9.8 (0.7)
30 (2)
580 (40)
ASTM F37B
ASTM F37B
DIN 3535- 4
Fuel A
Nitrogen
Gas Permeability
20-35
Thickness Increase, (%)
-
Tensile Loss, (%)
---
Weight Increase, (%)
-
-
ASTM IRM #903
-
10-40
60-100
70-85°F (20-30°C)
20-50
-
Garlock BLUE-GARD® 3700
ASTM Fuel A
ASTM Fuel B
300°F (150°C)
300°F (150°C)
70-85°F (20-30°C)
0.1 ml/hr.
0.7 ml/hr.
0.04 cc/min
ASTM #1 Oil
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