Tank car venting system

Details Tank car venting system Tank car venting system

1993-10-26

1995-01-17

Nilson, Robert G.

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

F16K 31126

Patent

active

053819977

ABSTRACT:
A vent valve for a transport tank car is actuated by pressurized air from the tank cars brake system. The valve is opened by this pressurized air to permit flow of air, through a vent passageway, into or out of the tank. A bellows isolates the pressurized air system from the flow of air in the vent passage so that the braking air system will not be adversely affected by vapors from hazard products loaded in the tank.

REFERENCES:
patent: 4522369 (1985-06-01), Gemignani
patent: 4721283 (1988-01-01), Wilson

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