Abstract: This invention relates to release/relief valves, trailer brake release valve, and apparatus for equalizing pressure and absorbing shock, as they pertain to pneumatic brake systems for buses, trucks, and trucks/semi-trailers, singular and in multiple combinations in automotive air brake installations; and more particularly to a differential pressure regulator quick release valve that employs a dilivery channel for directing and centralizing fluid pressure differentials to its base housing and the same delivery channel directing the exhaust of fluid pressure to its quick release ports.