Small size: compact overall structure, small size, low noise, high energy-saving effect, convenient maintenance. Continuous operation: adopts hard, titanium tungsten material, which can make the pump safe and continuous. Professional manufacture: professional manufacture, compact structure, standardized design, suitable for chemical pumps. Improved safety: automatic protection against pump leakage, electrical leakage, overload and overheating, etc., enhances safety and reliability. Application: Mechanical spring shaft seal is suitable for water pump, oil cylinder, swimming pool Spa pump, etc., Manufacturer: GJHGNFRDK