Stenner Pumps CLASSIC Serie Manual De Instalación Y Mantenimiento página 22

INSTALLATION
4. Hand tighten the injection fitting into the FNPT fitting.
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. For 3/8" connections wrench tighten
one additional 1/2 turn. If leak occurs, gradually tighten the 3/8" connecting
nut as required.
Duckbill Check Valve
a. Prior to connection, test 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. For 3/8" connections wrench tighten
one additional 1/2 turn. If leak occurs, gradually tighten the 3/8" connecting
nut as required.
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.
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Classic Series
continued
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