free half the working principle of float trap free half float drain valve is only one and a half float barrel as the moving parts, when opening downwards, ball is both open and closed part, and sealing parts, ball barrels is both open and closed part, and sealing parts. Whole sphere can be sealed, pneumatic ball valve long service life, resistant to water, no vulnerable parts, trouble-free, durable, no leakage of steam. Back pressure rate over 80%, can discharge the condensate saturation temperature, lowest supercooling degree of 0 ℃, no water storage heating equipment, make the heating equipment to achieve the best heat transfer efficiency. When the device is started for the first time, the air in the pipe and low temperature condensate through tubes into the drain valve, the valve of the bimetal plate empty element pop-up ball barrels, open the valve, air and water flowing rapidly at low temperature. When steam into the bucket, upward buoyancy bucket, when the valve is in the temperature rises, the bimetal empty contraction, ball float to the valves, Industrial Valves shut off. When the steam into water in the bucket, the bucket loses buoyancy and sinking, Industrial Valves is opened, the condensate discharge quickly. When the steam back into the barrel inside, the Industrial Valves will shut down, interrupts, and a continuous work.

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