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- Troubleshooting for demand type diaphragm pump
Troubleshooting for demand type diaphragm pump
Not Priming :any air leak or blockage along the suction line well prevent the pump from priming. Check the hose, hose clamps, fittings and strainer. If your suction line checks out, the cause usually centers on a problem with the valves. Open up your pump and verify the valve o-ring is in place and there is not any debris clogging the valves. Valves occasionally swell or lose their resilience. This type of valve damage is not always visible. Luckily valves are relatively inexpensive and easy to replace.
Low Pressure or Automatic Switch not shutting off. Slight swelling of the valves is the most common cause of low pressure or the pump not automatically shutting off. If after replacing the valve and the problem still persists, replace the pressure switch.
Leaking a ripped or cracked diaphragm is normally the cause of liquid leaking out of the pump. Additional damage to the bearings and motor can be avoided if you catch the leak early.
Pump does not respond to electrical power. Bypass the pressure switch by removing the two wires attached to the switch and connect them momentarily together. If the pump turns on your pressure switch requires replacement. If your pump remains lifeless after by passing the switch your motor needs replacing.
note: some motors have replaceable brushes this may be your next step. If after replacing the brushes the motor remains lifeless replace the motor.
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Show sump pump: Shower sump systems deliver the performance you've been asking for. Standard Box size that offers fast water flow into and out of sump. The lid snaps in to allow quick installation (and removal for cleaning) and includes a gasket to seal the sump box against overflow. The sump box even includes an air to prevent air locks.
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Model HY-304553R/HY-304554R: 115v/220v water pump:Max 3.0 Gallons Per Minute capacity flow,and 55 PSI pressure.This series pump can be used for general water transfer,sprayer pumps,small rain system,or other industry usage(perfect for water heater shower,caravans,RV,knapsack sprayer),use it with fresh or salt water or other liquid with weak acid&alkaline is ok.
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Model HY-304553R/HY-304554R: 115v/220v water pump:Max 3.0 Gallons Per Minute capacity flow,and 55 PSI pressure.This series pump can be used for general water transfer,sprayer pumps,small rain system,or other industry usage(perfect for water heater shower,caravans,RV,knapsack sprayer),use it with fresh or salt water or other liquid with weak acid&alkaline is ok.
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Model HY-304551R: 12v/24v water pump:Max 3.0 Gallons Per Minute capacity flow,and 55 PSI pressure.This series pump can be used for general water transfer,sprayer pumps,small rain system,or other industry usage(perfect for water heater shower,caravans,RV,knapsack sprayer),use it with fresh or salt water or other liquid with weak acid&alkaline is ok.
| Phone : | +86-592-5625061 |
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| Fax : | 0592-5625061 |
| Email : | sales@sailingflo.com |