Mode selection valve for RAT re-stow pump

A mode selection valve assembly comprising:

• a first end having a housing and an operating end located within the housing and rotatable relative thereto on application of a rotary force by a user;
• a conduit end fixed to rotate with the operating end, the conduit end formed by a cylindrical wall defining a conduit therethrough and an opening formed through the wall in fluid communication with the conduit;
• and
• a rotary spring secured in the housing and connected at a first end to the housing and at a second end to the operating end, the spring configured to rotationally bias the operating end to a first rotational position relative to the housing such that the opening of the conduit end is at a first rotary position relative to the housing;
• wherein rotational force applied by a user to the operating end against the force of the spring causes rotation of the conduit end and the opening therein to a second rotational position, the rotary spring pre-loaded to return the conduit end to the first rotational position on release of the applied force;
• wherein the mode selection valve assembly is configured to be mounted between a pressurized fluid inlet and a pressurized fluid outlet of a pump unit of a RAT actuator assembly.