Cavitation Troubleshooting
Contents
1. Cavitation can cause serious damage to your pump and system Review these common conditions and solutions to help eliminate unnecessary downtime and maintenance costs Condition Solution Inadequate inlet line size Increase line size to match the pump inlet port or one size larger Water hammering liquid acceleration deacceleration Install Captive Acceleration Tube C A T at pump inlet Move pump closer to liquid supply Add pulsation dampener Rigid inlet plumbing Use flexible wire reinforced hose at inlet and discharge pump port to absorb pulsation and pressure spikes Excessive elbows in inlet plumbing Keep elbows to a minimum and less than 90 Excessive liquid temperature Use thermo valve in bypass line Do not exceed pump temperature specifications Substitute closed loop with dual baffled holding tank Size tank for frequent or high volume bypass 6 10 times system GPM Pressure feed high temperature liquids Properly ventilate cabinets and rooms Air leaks in plumbing Check all connections Use PTFE thread tape or pipe thread sealant Agitation in supply tank Size tank according to pump output Minimum 6 10 times system GPM Baffle tank to purge air from liquid and separate inlet from discharge High viscosity liquids Clogged filters Verify viscosity against pump specifications before operation lt 500 CPS 2500 SSU Elevate l2. iquid temperature enough to reduce viscosity Lower RPM of pump Pressure feed pump Increase inlet line size Clean filters regularly Use clear filters to monitor build up Use adequate mesh size for liquid and pump specifications 80 mesh recommended for fresh water Please review many other common pump and system conditions in our SERVICE and FAQ sections on our web site 1681 94th Lane N E Mpls MN 55449 4324 P 763 780 5440 F 763 780 2958 E techsupport catpumps com 993412 RevA
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