www.stenner.com
24
INSTALLATION
continued
4.
Hand tighten the injection fitting into the FNPT fitting.
0-25 psi Model (includes injection fitting)
a.
Install connecting nut
*
and ferrule to the pump discharge line. Insert discharge
line into injection fitting until it reaches base of fitting.
b.
Finger tighten connecting nut
*
to fitting.
26-100 psi Model (includes injection check valve)
a.
Prior to connection, test injection check valve and NPT threads for leaks by
pressurizing system. If necessary, tighten an additional 1/4 turn.
b.
Install connecting nut
*
and ferrule to the pump discharge line. Insert discharge
line into check valve body until it reaches base of body.
c.
Finger tighten connecting nut
*
to fitting.
5.
Turn pump on and re-pressurize system. Observe chemical flow as actuated by
system and check all connections for leaks.
6.
After suitable amount of dosing time, perform tests for desired chemical readings
(e.g., pH or ppm). If necessary, fine tune dosing levels by rotating dial ring
(adjustable pumps only) or by adjusting solution strength.
The injection point and fitting require periodic maintenance to clean any
deposits or buildup. To allow quick access to the point of injection, Stenner
recommends the installation of shut-off valves.
*
For 3/8" connections, insert discharge line until if reaches base of injection fitting (25 psi) or check valve body
(100 psi). If leak occurs, gradually tighten the 3/8” connecting nut as required.
