A new scroll spring is provided for cleaning the sand filtering passage to prevent sand plug.
通过新颖的防砂涡卷弹簧可在防砂的同时清洁滤砂通道，防止滤砂通道堵塞。
3
When cleaning, unscrew the head bottom plug, drain fluid, remove the flange cover, remove the filter basket, cleaning and re load can, therefore, maintenance is extremely easy to use.