FNW GASKETS User Manual
Figure R
GASKETS
150# RED RUBBER
FULL FACE & RING GASKETS
Features
Red rubber gaskets are manufactured from Styrene-Butadiene or SBR for short.
This synthetic material was developed as an alternative to natural rubbers. The red
rubber gaskets are recommended for service in cold and hot water, air, steam,and
some weak acids. It should not be used with strong acids, oils, grease, and
chlorates. It offers little resistance to ozone and to the majority of hydrocarbons.
Standards
• Meets ASME B16.21 for 150# gaskets
• Dimensions: ASME B16.5
(Except 30” which is ASME B16.47 Series A)
Service Limits
• Max. Temperature: 170°F (77°C)
• Min. Temperature: -20°F (-29°C)
• Max. Pressure: 200 PSIG (13.8 Bar)
• Max Pressure x Temperature (PxT) - 20,000 (°F x PSIG)
Typical Physical Properties
Property Value
Durometer Hardness 75 Shore A ±5
Tensile 400 PSI
Elongation 150%
Finish Smooth
Compression Set for 22 Hrs @ 158°F (70°C) (ASTM D395B) 35%
Heat Aging for 94 Hrs @ 158°F (70°C) (ASTM D573)
Change in Hardness +5 Shore A
Change in Tensile -15%
Change in Elongation -35%
Properties and application parameters shown on this data sheet are typical. Failure to select proper sealing
products could result in property damage and/or serious personal injury.
Figure Number Matrix
FNW R 1 FFG A Size
PRESSURE TYPE THICKNESS
150# = 1
300# = 3
* NOTE: The 30” red rubber gaskets are available in 150#, 1/8”, full
Ring Gasket = RG
Full Face Gasket = FFG
face only (FNWR1FFGA30).
1/16” = 116
1/8” = A
1/2 = D
3/4 = F
1 = G
1-1/4 = H
1-1/2 = J
SIZE CODE
2 = K
2-1/2 = L
3 = M
4 = P
5 = S
6 = U
8 = X
10 = 10
12 = 12
14 = 14
16 = 16
18 = 18
20 = 20
24 = 24
30* = 30
DOC: FNWR06 Ver. 7/2013
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The contents of this publication are presented for information purposes only, and while effort has been made to ensure their accuracy, they are not to be construed as
warranties or guarantees, expressed or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and
conditions, which are available on request. We reserve the right to modify or improve the designs or specications of our products at any time without notice. Always
verify that you have the most recent product specications or other documentation prior to the installation of these products.
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