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VERNATUBE™ is a resin-impregnated glass filament wound tubing wound exclusively with a fire retardant resin formulated for high temperature applications. Centek uses the fire retardant VERNATUBE™ to fabricate many of the basic components used to manufacture our wet marine exhaust systems. VERNATUBE™ exceeds values for the class of materials designated as “self-extinguishing” per ASTM –D-635, UL94V-O, and the US Navy/USCG MIL-R-21607 and MIL-R-7575. The smooth, resin-rich I.D. assures minimal restriction to exhaust gases and cooling water flowing through the tubing. Precise control of the outside diameter ensures ease of connecting mating ports with marine exhaust hose.
Warning: Vernatube should never be installed in an exhaust system where structural loads from the boat/vessel might be transferred to the tube producing stress. Such stress could result in damage or failure of the tube or other components of the system.
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The following table is for general recommendations only:
NOTE: For V-Block engines where twin exhaust lines are desired, divide the H.P. by two and then match to the appropriate size.
IN & OUT SIZE / MAXIMUM H.P. |
Dia. A |
Gasoline |
Diesel |
1.50" or 1.63" |
30 |
10 |
2.00" |
60 |
25 |
2.50" |
110 |
40 |
3.00" |
160 |
60 |
3.50" |
220 |
85 |
4.00" |
280 |
125 |
4.50" |
320 |
170 |
5.00" |
370 |
210 |
6.00" |
440 |
280 |
8.00" |
-- |
420 |
10.00" |
-- |
680 |
12.00" |
-- |
900 |
14.00" |
-- |
1150 |
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