| 摘要 |
A steam trap for a radiator is provided to completely intercept steam pressure of high temperature without an additional pressure-reducing unit for reducing vapor pressure of high temperature. A steam trap for a radiator comprises a body(10) having a chamber(11) wherein an outlet(13) having a helix(13a) formed to the outer peripheral surface, and an inlet(15) having a pressure-reducing part(15a) formed to the inside communicate with each other; a valve-opening and shutting unit automatically opening and shutting the pressure-reducing part by responding to the temperature of condensate flowing through the inlet; and a cover(70) combined to the body to seal hermetically the valve-opening and shutting unit arranged to the body. The valve-opening and shutting unit comprises a sealing cap(20) having an insertion space one side of which is open; a bimetal disk(30) having multi-layered disks the center of which is protruded by metals different in a thermal expansion coefficient according to the temperature of the condensate; a valve stem(40) shutting and opening the pressure-reducing part as the center of the bimetal disk is protruded and is restored to the original state; a restoring coil spring(50) to make the valve stem restored to original position when the bimetal disk is restored to the original state from the protruded state; and a sealing stopper(60) combined to the sealing cap. The sealing stopper has plural inflow holes(60a) for inflow of the condensate to make the condensate flowing in through the inlet directly respond to the bimetal disk. The sealing stopper supports the valve stem to prevent the valve stem from being separated and has a guide hole(60b).
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