IOM 570 06/2011
REV A.
Page 3 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
OPERATION
1.
Determine the location of the valve disc, or “gate,” by
observing the operation spindle through the sight holes at
the end of the spindle mountings (see drawing page 6).
The stainless steel operating spindle (1-1/2” diameter) can
be seen through the sight hole on the isolated side. The
torque bar (15/16” diameter) and/or the operating screw
(acme threaded) can be seen through the sight hole on the
operating side.
START
UP
1.
Open both chamber vents. Rotate hand wheels a
minimum of 20 turns to locate valve discs such that both
chambers start to fill.
2.
Close vents when chambers are filled and rotate hand
wheels in the same direction until stop is reached. This
way, only half the baskets are in service.
3.
Close pressure equalizer valve.
4.
Slowly introduce fluid to be strained.
CAUTION:
Start system GRADUALLY. This
eliminates sudden shock to strainer and other
equipment in the line.
CAUTION:
Recheck “Operation” procedure to
ensure that both valve discs are sealing the same
chamber. There should be NO SIGNIFICANT
AMOUNT OF FLOW from vent in chamber that is
isolated.
NOTE:
The valve discs or “gates” are not designed
or intended to provide absolute tight shut-off.
Manufacturing standards require valve seepage to
be low enough to provide time for basket exchange
only.
SHUTDOWN:
TEMPORARY
1.
Tightly close valves on inlet and outlet connections of the
strainer.
2.
Open vents to relieve liquid pressure in the strainer.
CAUTION:
DO NOT loosen covers while there is
significant liquid or airflow from the vent.
SHUTDOWN:
EXTENDED
PERIOD
If the system is to be shutdown for an extended period:
1.
Drain fluid from the strainer.
2.
Clean the baskets.
3.
Lubricate operating mechanism, the chain drive and, if so
equipped, the cover lift according to directions in section on
lubrication.
4.
Unseat the valve discs by turning hand wheels 15 to 20
turns.
5.
Open pressure equalizer valve.
