WLA300 Rev170606
14
Top Mounted Tank Vent
Gasket (Between Mounting
Surface and Tank Vent)
Nut (1 1/8" - 12 TPI)
Maximum Mounting
Surface Thickness
1 3/4"
2 1/2"
5/8"
90° Mounted Tank Vent
1/4" Dia.
(Thru holes for two
1/4-20 x 3" bolts.)
3/4" Dia.
2 5/8"
Figure 4. Pressure/Vacuum Foam Tank Vent
Note: The tank vent must be mounted
in a vertical position. The vent can not
be immersed in foam. (If there is no
ll tower, mount the vent at the highest
point of the tank top so that it is not
immersed in foam.)
2 5/8"
3 7/8"
1 1/2"
Top Mounted Tank Vent
1 1/8" Diameter Hole
90° Mounted Tank Vent
3/4" Diameter Hole with
Two 1/4" Bolt Holes
Typical
Foam Tank
Fill Tower
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