Vacuum actuated tank vapor vent valve

Fluid handling – Systems – System with plural openings – one a gas vent or access opening

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Details

141 46, 141 59, 141302, F16K 2400

Patent

active

050147420

ABSTRACT:
A tank vapor vent valve assembly mounted to the top of the tank wall has a piston actuated by a source of engine vacuum which maintains a fill vapor exit closed until the gas cap is removed to relieve the vacuum and allow the piston to open.

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