FIELD: machine building.
SUBSTANCE: proposed device comprises body arranged between fluid feed pipe inlet and outlet, valve units arranged inside said body to let fluid in and out in compliance with inner pressure variation, and heat-sensitive device to create pressure difference in said valve unit to comply with heat-sensitive fluid temperature variation. Heat-sensitive device comprises heat-sensitive assembly with heat-sensitive fluid, reaction chamber, valve chamber, discharge pipe, first fluid channel to communicate reaction chamber with valve chamber, and second fluid channel to communicate reaction chamber with discharge pipe. When heat-sensitive fluid reaches preset temperature running fluid gets into reaction chamber owing to operation of heat-sensitive assembly. Running fluid in body to be fed into valve chamber is discharged via discharge pipe due to pressure difference created in valve chamber.
EFFECT: ruled out discharge pipe freezing.
23 cl, 17 dwg
