Pneumatic Drain Valve

Overview

The pneumatic drainage valve operates based on pressure differentials and the control of the pneumatic system. When installed at the lowest point of a compressed air system, the pneumatic automatic drainer continuously removes condensate, rust, and oil without requiring manual intervention. This device utilizes floats and diaphragms to sense condensate levels in the gas collecting chamber. Once the water level reaches a certain point, the float triggers the diaphragm to release compressed air, opening the valve for effective drainage. By adjusting pneumatic system settings, users can control timing and frequency of drainage processes to ensure efficient removal of condensate without excessive use of compressed air.

Principles 

1. Pressure differential control: The valve senses pressure differences in the system and adjusts fluid flow by controlling its position to facilitate drainage.
2. Pneumatic actuator: Utilizes devices such as cylinders and gear transmission systems to convert pressure signals into mechanical power for driving water flow control mechanisms during switching actions.
3. Automatic control: Induction devices like floats and diaphragms automatically adjust valve status based on condensate water levels in gas collecting chambers to achieve automatic drainage.

This technology finds wide application across industries including agriculture and construction, enabling automatic water flow control that ensures normal operation of systems while extending equipment service life.