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Diaphragm Pump Manual
An economical workhorse, the 51,52 & 54 Series are engineered for flexibility. The 5 chamber
series are our Heavy-Duty water pump. It provides high volume water flow with reduced pump
cycling, thanks to the large five-chamber diaphragm. With on-demand switching, 3.0 to 5.0 GPM,and
60 PSI, the 51, 52 & 54 Series will meet your special requirements with positive predictable perfor
-mance. With a built-in bypass function, 54 Series is able to reduce rapid cycling and allow water to
flow back from the outlet side to the inlet side of the pump. SEAFLO also offers a variety of easy
connect fittings and filters.
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Summary of Contents for Seaflo 51 Series
- Page 1 -mance. With a built-in bypass function, 54 Series is able to reduce rapid cycling and allow water to flow back from the outlet side to the inlet side of the pump. SEAFLO also offers a variety of easy connect fittings and filters.
- Page 2 FEATURES 4.Plumb the system using high pressure (2x pump rating), braided, flexible tubing to minimize vibration/ noise. 5.Do not apply inlet pressure in excess of 30 psi. In general, try to avoid any inlet pressure completely. 6.Avoid any kinks or fittings which could cause excessive restrictions. 5 chamber diaphragm pump Run dry capable for normal workloads Self priming...
- Page 3 REPAIRKITS Quantity Description Pump Head Assembly 51 Series Valve Assembly Diaphragm Assembly Motor Assembly Pressure switch Diaphragm of Pressure Switch Quick Attach Clip Pump Head Diaphragm Rubber Feet Motor 54Series Description Quantity Pump Head Assembly Valve Assembly Diaphragm Assembly Motor Assembly...
- Page 4 NOISY TROUBLESHOOTING Check if the mounting feet are compressed too tightly. Is the mounting surface flexible? If so, it may be adding noise. PULSATING FLOW– PUMP CYCLES ON AND OFF Check for loose head/screws. Check lines for kinks. If the pump is plumbed with rigid pipe, then it may transmit noise more easily. Plumbing lines or fittings may be too small.
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