Graco 207996 Instructions Manual Page: 3

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Installation
To clean or service the filter without shutting down the
system, install a dual filter or a filter by-pass system as
explained below.
NOTE: Be sure to allow 4.5 inches (114 mm) minimum
clearance below the filter to ease removal of the filter
bowl (10).
Dual Filter System
This setup enables you to redirect the fluid to another
filter while one filter is cleaned or serviced.
Install two filters as shown in Fig 1. Both filters must
have an adapter (A) and drain valve (B) in the filter
bowl (10) to relieve fluid pressure and drain the filter
before removing the bowl. Install four suitable shut-off
valves (D), one at each filter inlet and outlet, to redirect
the fluid and isolate the filter not in use.
Filter By-pass System
This setup enables you to redirect the fluid through
pipes that by-pass the filter while cleaning or servicing
the filter.
Install the filter and by-pass pipes as shown in Fig 2.
An adapter (A) and drain valve (B) must be installed in
the filter bowl (10) to relieve fluid pressure and drain
the filter before removing the bowl. Install four suitable
shut-off valves (D), one at the filter inlet; the filter
outlet; the by-pass pipe inlet; and the by-pass pipe
outlet, to redirect the fluid and isolate the filter while
cleaning or servicing the filter.
Fig 1
0780
D
DD
D
10
A
B
Dual Filter System
Fig 2
0781
D
D D D
10
A
B
Filter Bypass System