Function: The mechanical part is isolated from the electronic part, ensuring reliable operation without easily failing bellows. The liquid contact is made of fully reinforced nylon or PPO, with optional PVC external thread connections, and compatible with all UPVC T-joints. Suitable for UPVC pipes commonly used in seawater or pool heat pumps. Utilizes an imported magnetic switch for electrical action. Features a small disconnection and reset flow rate, with negligible pressure loss, ideal for pool and other heat pumps. Adjustable flow protection products. Application: This gas-liquid dual-purpose flow switch can be widely used in industrial automation, mechanical equipment, air compression, and refrigeration/air conditioning fields. The water flow switch magnet is not in the flowing water channel, allowing it to function normally even in sewage systems.