Nova-Tech LMI Series AA-B-C-E-J-P Metering Pumps - Manual (Page 21)

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4.8 Injection Check Valve and
Discharge Tubing Installation
A. Installing Injection Check Valve (Figure 1)
1. 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.
2. 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.
3. 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 40° left
and right are acceptable.
B. Connecting Discharge Tubing
Note: Cut tubing to length needed for discharge line.
1. Route tubing from the injection check valve to the metering pump, making
sure it does not touch hot or sharp surfaces, or is bent so sharply that it kinks.
2. Reference 4.3 Tubing Connections.
FIGURE 1