3. Exploded View
1 1/2" RUBBER COUPLING
WITH CLAMPS
VERTICAL FLOAT SWITCH
(441)
441, ROTATED TO 30°
TO PREVENT AIRLOCK
CHECK VALVE
442, WITH INTEGRATED
CHECK VALVE
COUPLING
SNAP-ON FLOAT SWITCH
(442)
1 1/2" THREADED CHECK VALVE, 2" OUTER
DIAMETER. HAND TIGHTEN ONLY
Figure 1. Exploded view of PC series
combination system showing 257 primary
PRIMARY PUMP
pump and what is included for systems with
(257 SHOWN)
either a 441 or 442 DC backup pump.
©Copyright 2016 Liberty Pumps Inc. All rights reserved.
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