Stenner Pumps S FIXED SERIE Manual De Instalación Y Mantenimiento página 37

CLEANING THE POINT OF INJECTION
5. Replace discharge line if cracked or deteriorated. If the end is clogged, cut off the
calcified or blocked section of discharge line.
Injection Fitting
Replace ferrule and reinstall the discharge line to the injection fitting
approximately 3/4"-1" until it stops.
Duckbill Check Valve
• Reassemble the check valve.
• Replace ferrule and reinstall the discharge line to the injection check valve
approximately 3/4" until it stops.
Ball Check Valve
• Reassemble the check valve, refer to
illustration. The smooth side of the
seat must face the ball.
• Reinstall the discharge line to the
injection check valve approximately
3/4" until it stops.
6. Tighten the connecting nut finger tight while firmly holding the tube fitting. The 3/8"
nut may be wrench tightened one additional half turn. If leak occurs, gradually tighten
the 3/8" nut as required.
7. Enable the water pump electrical supply and pressurize the water system.
NOTE: The roller assembly must be expanded so the tube is pressed against the tube
housing wall.
8. Put the metering pump back in service and inspect all connections for leaks.
USA and Canada 800.683.2378, International 904.641.1666
continued
Check Valve Body
Seat
Ball faces smooth side of seat
Spring
O-Ring
Injection Fitting
Ball Check Valve
S Fixed & Variable Series
37