Pilot valve equipped with a pressure reducing valve for fire fighting

摘要

PURPOSE: A decompression valve for firefighting integrated with a pilot valve is provided to be easily assembled and installed and to fundamentally prevent damage to and deformation of a pipe due to an external impact. CONSTITUTION: A decompression valve for firefighting integrated with a pilot valve includes a primary side fluid path and a secondary side fluid path; a main valve(112) which controls the opening of the primary side fluid path and the secondary side fluid path; and a pilot valve(114) which drives the main valve. The pilot valve comprises a body; a pilot diagram chamber which is comprised at the center of the body; a first and second spaces which are comprised in the lower part of the pilot diagram chamber; a disk sheet which opens and closes a space between the first space and the second space by interposing spindles linked by the pressure of the pilot diagram chamber; a primary side fluid path connection pipe which connects the primary side fluid path with the first space; a secondary side fluid path connection pipe which connects the second space with the pilot diagram chamber at the same time; and an ejector fluid path which is connected to the main valve by branching off from the primary side fluid path connection pipe connected to the first space.