4
Installation: Initial Plumbing and Point of Injection
17
INSTALLATION
To set up the point of injection:
1. Select the point of injection.
2. Install a carrier check valve or a mixer assembly in the main product line to prevent back flow to the carrier
reservoir.
Refer to Table 2 on page 18 for assistance with proper sizing of the carrier check valve or see Figure 4 on
page 19 for details on available mixer assemblies.
3. Install an in-line mixer to the through port of the tee fitting and connect to the existing carrier product line or
boom valve manifold.
Refer to Figure 4 on page 19 for assistance with proper sizing of the in-line mixer.
4. Install a chemical injection check valve to the injection line in front of the point of injection to prevent back flow
to the chemical reservoir.
Refer to Table 2 on page 18 for assistance with proper sizing of the carrier check valve.
5. Install a 12 PSI chemical injection check valve (P/N 333-0011-102) into the injection line in front of the point of
injection to prevent back flow to the chemical reservoir.
Refer to Table 2 on page 18 to for assistance with proper sizing of the injection check valve.
NOTE:
It is important to flush the injection point check valve periodically and when changing chemicals to
preserve proper operation.
FIGURE 3. Available Check Valve Options
NOTE:
Be sure to install the check valves with the flow direction indicator pointing in the direction of
chemical flow.
“Inject” Injection
Point Check Valve
Inlet
Outlet
“Recirc” Recirculation/
Priming Check Valve
Identifier
Identifier
046
102
Carrier Check Valve
Inlet
Outlet
Inlet
Outlet
