MULTI-OPERATIONAL VALVE

摘要

A valve includes a valve body, an inlet orifice in fluid communication with a first fluid volume, an outlet aperture in fluid communication with a second fluid volume and in selective fluid communication with the inlet orifice by a first fluid flow path, an activation member axially movable relative to the valve body, and a plunger axially movable within the valve body. The plunger includes an aperture therethrough defining a second fluid flow path between the first and second fluid volumes. The valve is operable in a first mode in which fluid flow is only permitted along the first fluid flow path in response to manual actuation of the activation member. The valve is operable in a second mode in which fluid flow is only permitted along the second fluid flow path when a pressure difference between the first and second fluid volumes reaches a predetermined value.

主权项

1. A valve for selectively fluidly communicating a first fluid volume and a second fluid volume, the valve comprising:
a valve body; an inlet orifice in fluid communication with the first fluid volume; an outlet aperture in fluid communication with the second fluid volume and in selective fluid communication with the inlet orifice by a first fluid flow path; an activation member axially movable relative to the valve body; and a plunger axially movable within the valve body, the plunger including an aperture therethrough defining a second fluid flow path between the first and second fluid volumes; wherein the valve is operable in a first mode in which fluid flow is only permitted along the first fluid flow path in response to manual actuation of the activation member, and wherein the valve is operable in a second mode in which fluid flow is only permitted along the second fluid flow path when a pressure difference between the first and second fluid volumes reaches a predetermined value.