Stenner Pumps S Serie Manual De Instalación Y Mantenimiento página 89

TROUBLESHOOTING – PUMP TUBE
NOTICE: A leaking pump tube damages the metering pump. Inspect pump frequently for leakage and wear. Refer to
Tube Replacement section for additional safety precautions and instructions.
PROBLEM
Tube leaking
y
Tube life is shortened
Tube connection is leaking
S Series FW 4.01.02 US and Canada 800.683.2378, International 904.641.1666 www.stenner.com
POSSIBLE CAUSE
Pump tube ruptured
Calcium or mineral deposits
Excessive back pressure
Tube is twisted, S30 only
Tube not centered, S30 only
Tube is twisted, S40 & S50
Chemical attack
Mineral deposits at injection point
Sediment blockage at check valve
Degraded check valve duckbill
Duckbill in wrong orientation
Tube manually stretched or pinched
during replacement
Seized rollers caused abrasion on tube
Exposure to heat or sun
Missing ferrule on 1/4" line
Crushed 1/4" ferrule
1/4" ferrule in wrong orientation
Missing 3/8" nut sleeve or gripper
89
SOLUTION
Replace pump tube, ferrules; center tube
Clean injection fitting, replace pump tube,
ferrules; center tube
Verify system pressure against tube psi,
replace tube if needed
Replace pump tube, ferrules; center tube
Replace pump tube, ferrules; center tube
Replace the tube.
IMPORTANT: DO NOT TWIST THE TUBE
during installation. To ensure it doesn't
twist, keep the tube positioned so the
printed description stays aligned along
the length of the tube. Use your fingers
to center the tube on the rollers.
Check chemical compatibility
Remove deposits, replace pump tube,
ferrules; center tube
Clean injection fitting, ensure suction
line is 2-3" above bottom of tank
Replace duckbill at every tube change
Reverse duckbill orientation
Follow tube replacement instructions
and allow roller assembly to stretch
tube into place
Clean roller assembly or replace
Do not store tubes in high temperatures
or in direct sunlight
Replace ferrule
Replace ferrule
Beveled ends of ferrules face pump.
Tubing should bottom into all fittings
Replace nut