Rubber bellows seal, mono-coil spring, spring drive.  

For various types of small size motor drive well pumps for home use. 

適用範圍 ( Applications ) 

最大壓力 ( Max. Pressure )  ---  -650mmHg ~ 5kg/cm^2_G 

溫度範圍 ( Temperature Range )   ---  -20ºC ~ +100ºC