PNEUMATIC CONTROLLERS, PNEUMATICALLY CONTROLLED INLINE VALVES, AND METHODS OF COOLING PNEUMATIC CONTROLLERS

A pneumatic controller includes a manifold (116), a selector (118), and a biasing member (120). The manifold has a low pressure port (122), a high pressure port (124), an actuator port (126), and a vent (128). The selector (118) is movable within the manifold between a first position and a second position, the low pressure port in fluid communication with the actuator port in the first position, the high pressure port in fluid communication with the actuator port in the second position. The biasing member is supported within the manifold and urges the selector towards the first position, wherein the low pressure port (122) is in fluid communication with the vent (128) in both the first position and the second position to cool the biasing member (120) with low pressure fluid received at the low pressure port. Inline valves, gas turbine engines, and methods of controlling fluid flow through inline valves are also described.