Johnson Pump CM30P7-1 Circulation PumpThe Johnson Pump CM30P7-1 is a heavy duty magnetically driven circulating pump. Compact but powerful, this is an ideal pump for circualtion duties such as water/antifreeze in heating systems or for circulating cooling fresh water. The CM series pumps by Johnson are normal-priming centrifugal pumps and should be mounted in a manner that ensures that they are always flooded or else be primed before switching on.Features:Pump Body: PPA, ThermoplasticShaft: Stainless SteelImpeller: PPA, ThermoplasticSpecifications:Voltage: 12Port size: 5/8″ or 3/4″ hoseMinimum Liquid Temp: -40 FMaximum Liquid Temp: 212 FDry running: 30 minutes maxInput Power: 27W MaxMounting: Separate universal bracket for flat surfacesCapacity: 5.3 GPMLength: 6.97″System Pressure: 2.5 bar max (36 psi)Width: 2.68″Height: 3.35Frequently Asked QuestionsWhat is the Johnson Pump CM30P7-1 Circulation Pump used for?The Johnson Pump CM30P7-1 is a heavy-duty magnetic-drive circulation pump designed for duties such as circulating water or antifreeze in heating systems and circulating cooling fresh water.What is the flow capacity of the Johnson Pump CM30P7-1?The Johnson Pump CM30P7-1 has a capacity of 5.3 GPM and a maximum system pressure of 2.5 bar (36 psi).What hose sizes are compatible with the Johnson Pump CM30P7-1?The Johnson Pump CM30P7-1 has ports for 5/8-inch or 3/4-inch hose connections.What are the temperature limits for the Johnson Pump CM30P7-1?The Johnson Pump CM30P7-1 is specified for liquid temperatures from -40 F to 212 F.How long can the Johnson Pump CM30P7-1 run dry?The Johnson Pump CM30P7-1 has a maximum dry-running time of 30 minutes. Because it is a normal-priming centrifugal pump, it should be mounted so it remains flooded or be primed before switching it on.What are the materials and dimensions of the Johnson Pump CM30P7-1?The Johnson Pump CM30P7-1 has a PPA thermoplastic pump body and impeller with a stainless steel shaft. It measures 6.97 inches long, 2.68 inches wide, and 3.35 inches high, with a maximum input power of 27W.//