10
Instruction Manual
SECTION 2 - INSTALLATION
2.9 INJECTION CHECK VALVE AND
DISCHARGE TUBING INSTALLATION
The Injection Check Valve prevents backflow from
a treated line. Install the injection check valve at
the location where chemical is being injected into
the system. Any size Female NPT fitting or pipe
tee with a reducing bushing to ½” Female NPT will
accept the injection check valve. PTFE tape should
only be used on threads that are connected with
pipes.
When installing the Injection Check Valve, be sure
to position it so that the valve enters the bottom of
your pipe in a vertical position. Variations left and
right within 80° acceptable (See illustration).
After cutting an appropriate length of tubing,
connect tubing to the injection check valve
then back to the discharge side of the pump
head. Make sure it does not crimp or come into
contact with hot or sharp surfaces (see Tubing
Connections, Section 2.3).
Figure 11. Typical Injection Check Valve Installation
