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3R 874
COMPRESSED SHEET PACKING
INORGANIC AND NBR

ISO 9001 : 2000 Certified
The 3R 874* is a general purpose Compressed Non-Asbestos sheet gasket material produced from inorganic fiber, reinforced fillers and bonded with nitrile rubber (NBR).*

Applications //

The 3R874 is suitable for services with the following general media categories: water, saturated steam, mild chemicals, inert gases, aliphatic hydrocarbons, oils and gasoline.

Technical data //


Temperature limits	Maximum Continuous Service	750°F (400°C) 460°F (240°C)
Pressure limits	Maximum Continuous Service	1595 psi (110 bar) 725 psi (50 bar)
Specification Compliance	ASTM Line Call Out F104	712290E33M4
Color	Black
Available sheet size	Thickness Sheet size	1/64" to 1/8" 59" X 63", 59" X 126"


ASTM Test Method	Property	Value
F1315	Density	96 lbs/ft³(1.7 gm/cc)
F36A	Compressibility	7-17%
F36A	Recovery	min 45%
F152	Tensile Strenght	1450 psi (10 N/mm²)
F495	Ignition Loss	max 37%
F146	Thickness Increase - ASTM Oil IRM 903 5h / 300°F (150°C) - ASTM Fuel B, 5h / 77°F (25°C)	max 20% max 15%
F146	Weight Increase - ASTM Oil IRM 903 5h / 300°F (150°C) - ASTM Fuel B, 5h / 77°F (25°C)	max 25% max 20%
F38	Creep Relaxation Torque Retention (DIN 52913)	23% 40 N/mm²
F37A	Sealability at 1000 psi	0.3 ml/h

The P x T graph shown above indicates the service limits for this sheet considering pressure and temperature simultaneously...(Tests were performed with nitrogen on 1.6mm thick sheet). The "normal" curve represents the common usage area for this sheet while the "maximum" curve indicates the maximum limits. For applications near or above the "maximum" curve, contact Industries 3R inc.

06-11/rev.0

	N.B. The information, details, dimensions and values indicated are to our best knowledge. We recommend testing according to local conditions. The specifications are subject to change without notice.
	55, Route 116 West, Danville (Quebec) J0A 1A0 Tel.: (819) 839-2793 Fax: (819) 839-2797 • www.industries3r.com

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Industries 3R

3R 874 COMPRESSED SHEET PACKING INORGANIC AND NBR

3R 874
COMPRESSED SHEET PACKING
INORGANIC AND NBR