IOM 570 06/2011
REV A.
Page 4 of 8
E
aton Hydraulics LLC, Filtration Division, 44 Apple Street, Tinton Falls, NJ 07724, www.eaton.com/filtration, Phone 732-212-4700
Installation, Operation & Maintenance Manual
Model 570 Duplex Basket Strainer
SWITCHING
FLOW
1.
Open vent on inoperative chamber. Open pressure
equalizer valve.
2.
Close vent on inoperative chamber when air is expelled
and fluid begins to flow.
3.
Transfer valve discs by turning hand wheels. Both hand
wheels must be turned simultaneously, clockwise to put
the far basket chamber in operation, counterclockwise to
put the near chamber in operation. The unit is equipped
with a chain drive, so it is necessary to operate one hand
wheel only. However, final seating and initial unseating
should be done independently with each hand wheel. The
reason being that the chain drive mechanism always has
some “slack.”
4.
Close pressure equalizer valve.
BASKET
REMOVAL
1.
Switch flow from dirty to clean chamber (see Switching
Flow).
2.
Open vent on dirty chamber to relieve liquid pressure.
3.
After air and water flow from vent stops, remove cover
nuts and body cover and drain fluid through bottom drain
to a lever below the basket seat.
4.
Remove dirty baskets and clean or exchange them.
BASKET
REPLACEMENT
1.
Place new or clean basket squarely on basket seat.
2.
Be sure basket handle is sufficiently high to be compressed
by body cover.
3.
Inspect body cover gasket and seal surface, clean seat or
replace gasket as necessary. Always keep spare body cover
gaskets in stock.
4.
Replace body cover, tighten fasteners uniformly. If strainer
is on suction service, fill basket chamber from outside
source before installing body cover.
5.
Make sure vent is open, close drain valve and refill
chamber.
TO
REFILL
THE
CHAMBER
WITH
EQUALIZER
1.
Open equalizer valve.
2.
Close vent when air is expelled and fluid begins to flow.
3.
Close equalizer valve.
TO
REFILL
THE
CHAMBER
WITHOUT
EQUALIZER
1.
Rotate hand wheels 12 to 15 turns to admit fluid to
chamber.
2.
Close vent when air is expelled and fluid begins to flow.
3.
Return valve disc to extreme position. Reseat valves
individually.
BASKET
CLEANING
CAUTION:
To prevent damage to the baskets,
DO NOT permit strainer pressure differential
between the inlet and outlet connections to
exceed 20 PSI.
1.
Clean baskets when there is a 5 PSI increase in pressure
across the strainer.
2.
During shutdown for a temporary period, drain fluid and
clean baskets.
