MAINTENANCE MANUAL
GP/146/99. Issue 9. October 2005
The change over valve is clamped between the filter housing and the bypass
connector housing and is retained by 4 off M10 bolts. Also constrained between the
2 housings is the cylindrical pressure relief valve and sealed on its outside diameter
by 2 O rings. This component should be treated as a single item and, for safety
reasons, must not be stripped down (due to the strong internal spring). It must be
reinstalled with its longest end towards the filter housing. The location is by means
of an external circlip.
The high pressure outlet is optional as a vertical 1.25” BSP tapping or a rear facing
square flange intended as a facing for an anti-surge valve, which may be supplied as
a single 1.25” BSP or twin 1.0” BSP outlet and AFFF valve mounting.
©Hale Products Europe LTD, Warwick
GP/146/99
WTmaint - Issue9. 10-2005October 2005
20
