Liquid Ring Vacuum System Troubleshooting Guide
system is:
WE SUGGEST YOU CHECK THIS:
A. Clogged Y-strainer. Y-strainers are used to catch contaminants in sealing and cooling liquid lines. If one of them in the sealing oil line is clogged, the pump will not perform adequately.
B. Plugged heat exchanger. Oil sealed systems can be cooled by either a liquid to liquid or liquid to air heat exchanger. If the heat exchanger is clogged, the pump will not receive adequate sealing oil to perform its work.
C. Inlet check valve partially stuck closed. Such a condition would restrict inlet air flow, lowering performance considerably.
D. Clogged exhaust filter. Most oil sealed liquid ring vacuum pumps are equipped with oil mist exhaust filters attached to the oil/air separator. If the filter is clogged, it could create back pressure, restricting air flow through the pump.
E. Oil scavenger line open too much. The scavenger line is used to route oil trapped by the exhaust filter back to the oil reservoir. If the line is open too much, the pump could be pulling air from atmosphere, resulting in low performance.
