Yoshitake Automatic Anti-Freezing Valve Pop Drain

Armstrong's pop drain is a drain valve that prevents freezing by discharging the drain remaining in the trap body to the outside when the steam supply is stopped. It is closed by steam pressure during normal operation, but when the steam supply stops and the pressure inside the trap drops below 0.035MPa, the valve is opened by the force of the spring and the drain inside the steam trap is automatically discharged. .. Freezing does not occur because the drain inside the trap body can be completely drained. When the steam supply is restarted and the pressure inside the main body reaches 0.035MPa, the drain valve closes and returns to normal operation.