Control Valve 26-D

The 26 –D control valve is an automatic type of control valve consisting of a pipe bracket to which all pipe connections are made. A service portion and a quick- release portion. The service portion respond to service and emergency rates of brake pipe reductions. To develop brake cylinder pressures with reference to the conditions of brake pipe pressure and control reservoir pressure

The service portion also contains two brake cylinder pressure- limiting valves. One limits the maximum brake cylinder pressure obtained during service brake applications. And the other limits the maximum brake cylinder pressure obtained during emergency brake applications