When attached to the
pump inlet, ow originates
from both the continuous
supply line and one of
the two selectable supply
lines. Valve may also be
utilized to isolate the
pump for service.
When attached to the
pump outlet, ow is
provided to both the
continuous outlet line and
one of the two selectable
outlet lines. Valve may
also be utilized to isolate
the pump for service.
A port can be used for the
installation of a pressure
gauge or sampling/
purging hose drain; or use
the included port plug to
seal the port.
Note: Valve shown attached to
pump outlet.
For maximum exibility, the valve can be easily adjusted to select the desired con guration of continuous and selectable
supply/outlet lines.
Continuous & Selectable Supply
Continuous & Selectable Outlet
Alternate Applications
Adjusting Flow Path
CONFIGURATION
OPTIONS
Selectable
Outlet Line #2
Selectable
Outlet Line #1
Pump
Outlet
Continuous
Outlet Line
On
Off
Selectable
Outlet Line #2
Selectable
Outlet Line #1
Continuous
Outlet Line
Pump
Outlet
On
Off
Selectable
Supply Line #2
Selectable
Supply Line #1
Continuous
Supply Line
Inlet
Flange
IMPORTANT: Follow all federal/national, state and local codes when installing or performing work on systems. All parts are covered by a lifetime warranty
against manufacturing defects provided they are installed by a licensed plumber and operated under normal working conditions. Disassembling will void
this warranty. If you have any questions or comments, please contact us at (800) 225-9529 or visit us on the web - www.webstonevalves.com.
15
100
150
200
kPa
psi
50
0
10
5
0
20
25
30
Selectable
Outlet Line #2
Selectable
Outlet Line #1
Continuous
Outlet Line
Pump
Outlet
On
Off
Selectable
Outlet Line #2
Selectable
Outlet Line #1
Continuous
Outlet Line
Pump
Outlet
On
Off
Selectable
Supply Line #2
Selectable
Supply Line #1
Continuous
Supply Line
Inlet
Flange
Selectable
Outlet Line #2
Selectable
Outlet Line #1
Continuous
Outlet Line
Pump
Outlet
On
Off
Selectable
Outlet Line #2
Selectable
Outlet Line #1
Continuous
Outlet Line
Pump
Outlet
On
Off
Selectable
Supply Line #2
Selectable
Supply Line #1
Continuous
Supply Line
Inlet
Flange
LINE #1 ISOLATION
LINE #1 ISOLATION
PLUGGED
LINE #2 ISOLATION
LINE #2 ISOLATION
PRESSURE GAUGE
PUMP ISOLATION
PUMP ISOLATION
DRAIN
Selectable
Outlet Line #2
Selectable
Outlet Line #1
Continuous
Outlet Line
1. Using a socket wrench,
turn handle nut counter
clockwise to loosen nut.
2. Remove nut and handle. 3. Grip the stem with
adjustable wrench,
turn stem 180°.
Selectable
Outlet Line #2
Selectable
Outlet Line #1
Continuous
Outlet Line
4. Replace handle, and tighten
nut using socket wrench.
5. Use enclosed T-Flow sticker
to indicate correct ow
path on handle. T-Flow
logo should match “T”
stamped on end of stem.
The Isolator
®
is a registered trademark of Webstone Company, Inc. © 2016 Webstone Company Inc.
FORM#: ISI-0216
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