http://www.google.co.uk/imgres?imgurl=http://www.zdspb.com/media/tech/animations/invert_v3_7fps.gif&imgrefurl=http://www.zdspb.com/tech/misc/markers_nohammer.html&usg=__5P-VWfNeveDHV1h5mp-1YP6viq8=&h=504&w=998&sz=292&hl=en&start=0&zoom=1&tbnid=fRXkuUejuJ5nkM:&tbnh=88&tbnw=175&prev=/images?q=inline+spool+valve+invert+mini&um=1&hl=en&sa=N&rls=com.microsoft:en-gb:IE-SearchBox&rlz=1I7GCNV_en&biw=1575&bih=849&tbs=isch:1&um=1&itbs=1&iact=rc&dur=269&ei=B_HOTIeaGoaBswbf_bWXCA&oei=B_HOTIeaGoaBswbf_bWXCA&esq=1&page=1&ndsp=40&ved=1t:429,r:1,s:0&tx=92&ty=47
If someone can explain to me how this diagram works, it would be helpful.
Thanks
If someone can explain to me how this diagram works, it would be helpful.
Thanks