OPERATION :-

Auto drain filter are equipped with a float actuaded device which automatically ejects

liquide contaminates when the liquid level in the bowl reaches a predetermined height

the float (f) opens a pilot valve ( v ) this admits air above the piston ( p ) thus causing the

drain valve ( d ) to open ( fig. ìA)

the liquid is expelled by air pressure to a drain where upon the float closes the ilot 

valve and so the drin valve .

for draining manually turn the brass /plastic knob coming out - clock wise slightiy.

ISTALLATIONN :-

Auto drain assembly is easily interchangeable with the manule drain

if suppiled in a kit form SI-AD P3  ( Fig . 2) the auto drain can be installed

by simply removing the manual drain cock from the bowl and reassemble

the auto drain as shown in ( fig.3 )

Minimum Working pressure : 25 P.S.I.

Maximum  Working pressure : 175 P.S.I.