7
3.
Wall
Mounting
The fluid end portion (head assembly) of the pump is set up to accommodate mounting of the
pump to the chemical container, either as a flooded suction, or a suction lift.
The pump head must be kept in a vertical position for proper operation. The head can be removed
and rotated 90
o
if needed to keep the inlet and outlet valves in a vertical position.
4. Foot Valve Installation
A weight is provided to hold the tubing and foot valve in a vertical position at the bottom of the
tank.
Do not allow the foot valve to lay horizontally in the chemical container.
This defeats
the action of the valve and causes the pump to lose prime. Keep suction tubing reasonably short
and avoid high spots or bends.
5. Injection Valve Installation
The injection valve is designed to prevent a back flow and to inject chemical into the line. To work
properly, this valve must be mounted within 45 degrees of vertical (see drawing next page). One
end of the injection valve is 1/2” MNPT. Install this end into the piping system. Use Teflon tape on
the NPT threads of this fitting only.
Connect the pump’s discharge tubing to the opposite end of the injector. Do not use Teflon tape
or joint compound on this fitting. Connect tubing between this fitting and the pump discharge fitting
at the pump.
NOTE: When installation is made
into a line with zero pressure
or when pumping into an open
vessel, use the optional three
function injection valve which
provides back pressure and
anti-syphon
capabilities.
Suction lift
Flooded Suction
Not recommended
