Temperature drain valve

The embodiment of the utility model discloses a temperature drain valve. The temperature drain valve comprises a valve body, a push rod, an adjusting spring, an expansion pipe and a thermal bulb, wherein a spigot is arranged on the valve body, the push rod and the expansion pipe are arranged in the valve body, the adjusting spring is arranged on the push rod, one end of the push rod is connected with the spigot, the other end of the push rod is connected with the expansion pipe, and the thermal bulb is arranged outside the valve body and is communicated with the expansion pipe. According to the temperature drain valve, the temperature of steam condensate water is sensed through the thermal bulb, and when the temperature of the steam condensate water is high, the spigot and the push rod of the temperature drain valve are tightly sealed so that high-temperature steam condensate water can not be discharged; when the temperature of the steam condensate water is low, the spigot and the push rod of the temperature drain valve are spaced so that low-temperature steam condensate water can be discharged through the spigot, and then the low-temperature discharge requirement is met, energy is saved, and damage to underground pipe networks or the environment caused by direct discharge of high-temperature condensate water is avoided.