Page 5 - New Supercatalog Color.indd

C-4
Compressed Inorganic Fiber Gasketing
ST-706 IFG® 55004 IFG® 55074
Color White Gray Sage
Binder Nitrile (NBR) Nitrile (NBR) EPDM
Temperature1 Maximum +1,000°F (+540°C) +800°F (+425°C) +800°F (+425°C)
Minimum -100°F (-75°C) -100°F (-75°C) -100°F (-75°C)
Continuous max. +750°F (+400°C) +550°F (+290°C) +550°F (+290°C)
Pressure,1 continuous max. psig 1,500 1,200 1,200
(bar) (105) (83) (83)
P x T, max.1 (psig x °F) 1/32", 1/16" 700,000 400,000 400,000
(bar x °C) (0.8 mm, 1.6 mm) (25,000) (14,000) (14,000)
1/8" 500,000 275,000 275,000
(3.2 mm) (18,500) (9,600) (9,600)
Sealability (ASTM F37B)2
ASTM Fuel A ml/hr 0.5 0.2 0.1
Nitrogen ml/hr 4.0 1.0 0.5
Creep Relaxation (ASTM F38) % 18 15 20
Compressibility Range
(ASTM F36) % 7-17 7-17 7-17
Recovery (ASTM F36) % >50 >50 > 50
Fluid Resistance (ASTM F146 @ 5 hours)
ASTM #1 Oil at +300°F (+150°C)
Thickness increase % 0-10 0-10 25-40
Weight increase % < 15 < 15 —
ASTM IRM #903 Oil at +300°F (+150°C)
Thickness increase % 0-15 0-15 60-90
Tensile loss % < 55 < 40 —
ASTM Fuel A at +70-85°F (+20-30°C)
Thickness increase % 0-15 0-10 10-30
Weight increase % < 20 < 10 —
ASTM Fuel B +70-85°F (+20-30°C)
Thickness increase % 0-20 0-15 15-35
Weight increase % < 20 < 15 —
Tensile Strength across grain psi 1,400 1,500 1,500
(ASTM F152) (N/mm2) (9) (10) (10)
Density lbs/ft3 105 110 110
(g/cm3) (1.68) (1.76) (1.76)
Gas Permeability
(DIN 3535 Part 4) 3 cc/min. — 0.05 0.04
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.
Notes:
1 Based on ANSI RF flanges at our preferred torque. When approach-
ing maximum pressure, continuous operating temperature, minimum
temperature or 50% of maximum PxT, consult Garlock Engineering.
2 ASTM F37B Sealability
ASTM Fuel A (isooctane):
Gasket load = 500 psi (3.5 N/mm2), Int. pressure = 9.8 psig (0.7 bar)
Nitrogen:
Gasket load = 3,000 psi (20.7 N/mm2 ), Int. pressure = 30 psig (2 bar)
3 DIN 3535 Part 4 Gas Permeability, cc/min. (1/16" thick)
Typical Physical Properties*
* Values do not constitute specification limits
All styles are furnished with an anti-stick parting agent as standard.
Nitrogen:
Gasket load = 4,640 psi (32 N/mm2 ), Int. pressure = 580 psig (40 bar)
4 Saturated 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 pressurizing the assembly.
Never retorque a pressurized assembly.
• If the service is superheated steam, contact Applications Engineering.