Manual shutoff valves may be used as tire wall shutoff valves as well as subsystem shutoff valves. Some aircraft have a manual fire wall shutoff valve operated by cable linkage.

Some aircraft use the needle-type shutoff valve in their landing gear and bomb bay systems. This needle-type valve consists of a handle, stem and valve, and body. Turning the handle in a clockwise direction places the valve on its seat within the body, stopping the flow of fluid.

These shutoff valves are used during maintenance to shut off hydraulic fluid to the subsystems, thus allowing maintenance personnel to work safely in the wheelwell and bomb bay areas. Also, by closing the particular valve a desired amount, the speed of the operating unit can be controlled to aid in observing the sequence and full operation of the components being operated.

Hydraulic fluid coolers are used in some hydraulic systems for the purpose of lowering the temperature of the fluid within the system lines, thus preventing inadvertent overboard dumping of fluid from the reservoir due to thermal expansion. Fluid coolers are installed in systems in which the temperature of the fluid is likely to exceed the maximum allowable limit.

According to the military specifications for aircraft hydraulic systems, 400F is the maximum allowable temperature for any type of hydraulic system. In some systems, this temperature might be exceeded without some means of cooling the fluid. Several types of fluid coolers are used on naval aircraft. The most common is the radiator type, in which both the hydraulic fluid and engine fuel flow separately through the cooling unit. Another radiator type uses ram air in flight and an electric blower while on the ground to produce an air source as a cooling medium.