Flowserve Circulator Manual de usuario descargar pdf (Pagina 5)

5 Troubleshooting

Problem Probable Cause

Unable to maintain Pressure Low pressure control valve setting: Follow the procedure in this document to

(Low Pressure) adjust the valve as required.

Low pressure relief vale setting: Fluid is bypassing the through the valve and

returning to the tank. Follow the procedure in this document to adjust the

valve as required.

Unable to maintain Pressure High pressure control valve setting: Follow the procedure in this document to

(High Pressure) adjust the valve as required.

Low Temperature/High Viscosity: Low temperature can cause the barrier uid

to have a too high of viscosity, creating high pressure loss on the seal supply

and return lines. Insulate line to maintain temperature.

Poor supply and return line piping: The supply and return line piping should be

sized and constructed to eliminate as much pressure loss as practical.

Unable to maintain Flow Low pressure relief vale setting: Follow the procedure in this document to adjust

the valve as required.

Worn Pump: If the circulator pump wears the discharge ow rate will decrease.

This will be more apparent at higher pressures. Measure the ow rate at normal

operating pressure and again at 1/2 normal operating pressure. If the

ow increases more than 20% then the pump may need to be replaced.

Note: pump wear can be accelerated by poor quality barrier uid and/or failure

to maintain system ltration, and prevent ingression.

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Flowserve Circulator Manual de usuario Pagina 5