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The
Plug Type Duplex Strainer is a simple, economical, and trouble
free design … time tested in applications around the world
over many years. This type of strainer is actually a high quality,
pressure rated plug valve with integral straining baskets.
Switching the flow from one basket to the other is accomplished
by moving the operating handle through a 90 degree arc. The
design is such that it is impossible for this operation to stop
the flow because of the unique port design in the diverter plug.
The entire switching operation takes less than 30 seconds. No
tools are needed. The plug is automatically positioned each
time in exactly the right spot by integral stops.
Before operating the handle a manual, integral lifting jack,
built into the strainer is used to lift the diverter plug off
of its seat. After the switching operation the lifting jack
is used to reseat the plug. The lifting jack is specially designed
to lift and seat the plug easily, even under high pressures.
A built in stop limits the distance the diverter plug can be
raised. This minimizes the possibility of material bypassing
the plug while it is rotated. It also prevents debris from building
up under the plug and making it difficult to reseat.
Other important features of the plug type Duplex Basket Strainers
include quick opening, swing away yoke design covers. No tools
are required to remove the covers for quick and easy access
to the strainer baskets, and they go back on just as fast as
they came off.
Draining of the basket chambers is simplified with the standard
NPT drain taps - and all sizes are provided with mounting legs
for bolting the strainer to the floor for a rock solid installation.
The plug type Duplex Basket Strainer is your best choice for most
applications. Its rugged design and ease of operation have made
it the duplex strainer of choice around the world in hundreds
of different industries.
Plug Duplex Selection Table
| Body
Material |
Connections
|
Sizes |
Plug
Material |
Seals |
Ratings |
| Inches |
Prefix |
| Iron
(CI)
Bronze (BZ) |
Flanged
125# |
5,6,8 |
0500, 0600,0800 |
Iron (CI)
or
Bronze (BZ)
|
Buna N |
200 PSIG
@ 100°F
5" and 6" sizes
150 PSIG
@ 100°F
8" size |
Flanged
150# |
5,6,8 |
0500, 0600,0800 |
Carbon Steel (CS) |
Flanged
150# |
6,8 |
0600,0800 |
Bronze
(BZ) or
Stainless
Steel (SS) |
| Stainless Steel (SS) |
Flanged
150# |
6,8 |
0600,0800 |
Stainless
Steel (SS) |
Viton |
CV Factors*
Size |
Value |
5" |
300 |
6" |
420 |
8" |
900 |
|
* For water with clean
perforated basket
• For Liquid Service •
5/32" SS perf basket
standard for all sizes. |
Ordering Information
Example: Please include full description
| Size (Prefix) | Model Number | *Screen Opening |
| 0600 - |
DF125CI
- |
156 |
6" Flgd. duplex strainer, cast iron, 125# ANSI flanges,
with 5/32" perf. basket
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