Valve cache

 is a stash featured in S.T.A.L.K.E.R.: Lost Alpha. "It's a good place to hide something small and valuable, though the hole grid around you makes you think twice.."

- PDA description

Overview

 * The stash is located in the pipe that had a Soul as a possible stash item in the Base Game. The area is not radioactive.
 * There are a pack of Blind Dogs in the area.

Trivia

 * Hound, the brother of Wolf is one of the casualties in this expedition.