Viking Pump TSM641.2 Eaton Model 50 Duplex Basket Strainer, Sizes 5 - 8 - Manual (Page 4)

4
Model 50 Duplex Basket Strainer, Sizes 5
” - 8”
Basket Replacement (Yoke Cover)
Place new or clean basket squarely on basket seat and be
sure the basket handle is sufficiently
high to be compressed by the strainer body
cover.
Inspect body cover O-ring and seal surface. Clean seat
and replace body cover O-ring as necessary.
Always keep spare O-ring gaskets in storage. Replace body
cover, making sure body cover is centered in body opening.
If strainer is on suction service, fill basket chamber from
outside source before installing body cover.
Swing yoke into position over body cover and onto
yoke stud, making sure yoke is level with body. If not,
adjust both studs to level the yoke.
Hand tighten yoke studs and tighten the center T- bolt.
Make sure vent is open, if strainer is so equipped, (see Fig
3); close drain valve and refill basket chamber with fluid as
follows:
Lift valve plug and rotate valve plug handle ap-
proximately 20° towards center position until all air is
vented from the basket chamber.
Close vents and return valve plug handle to extreme
position and reseat tightly.
With Equalizer
Open pressure equalizing valve. Close vent when air is
expelled. Close pressure equalizing valves.
Basket Cleaning
When to Clean
Clean baskets when there is a 5 PSI increase in the
pressure loss across the strainer
CAUTION: To prevent damage to the
baskets, DO NOT permit strainer pressure
differential between inlet and outlet
connections to exceed 20 PSI.
When to Clean, Continued
During shut down for a temporary period, drain fluid
and clean baskets.
How to Clean
Invert basket and wash out debris by directing a stream of air
or water against the basket exterior. Follow manufacturer’s
instructions when using a solvent to clean the baskets.
NOTE: Do not allow basket contents to dry
as this will make cleaning most difficult.
Inspect baskets at each cleaning for holes or tears, replace
as required. Always keep spare baskets in stock.
Shutdown Periods
During shutdown periods: Remove valve
plug from strainer.
Apply a heavy coat of grease to both the valve plug and
the plug cavity in the strainer body.
Replace valve plug and its cover. Do not seat valve plug
until strainer is again placed into service.
Recommended Spare Parts

1 Eaton Replacement Basket

1 Eaton Replacement Gasket
When ordering spare parts specify all nameplate data as
well as the description and quantity of parts.
Always use genuine Eaton replacement parts for
guaranteed fit and performance.
Visit our web site,
www.eaton.com/filtration for
information about the different types of Eaton Duplex
Basket Strainers.