SAFE VALVE FOR STEAM BOILER

摘要

PURPOSE: A safe valve for a vacuum type warm water boiler is provided to perfectly keep a sealing state of a steaming chamber and to improve the vacuum degree of the boiler and the heat efficiency. CONSTITUTION: The safe valve installed in a vacuum drum comprises: a steam discharging hole(110); a cylinder type groove(120) for inserting a O-ring(121) on the upper face; a body(100) fixed in the vacuum drum; plural holes(210); a pressing plate(200) for blocking the steam discharging hole, settled on the upper face of the body; plural leading pins(300) installed to possibly divide at a regular interval around the upper face of the body.