High Flow Diaphragm Metering Pumps GB mechanical diaphragm metering pump belongs to LGP G series mechanical diaphragm pumps. G series pumps are robust and reliable motor driven diaphragm metering pumps. The stroke length can be adjusted to alter capacity of this pump. Two non-return valves prevent the feed chemical from flowing back during pumping. Each pump with the reinforced plate to protect the diaphragm. LGP G series pump are very durable for processing all kinds of chemicals with wide flow rate range.Specifications: Capacity range: 380 l/h -1800lh under 50HzPressue range: 3-6 barsProcessing Temperature: from 0-70℃ ( 32-158℉)Stroke Adjustment: 0-100%Suction lift: 1.5mAccuracy: ±2% of set pointMaterials Pump head: PVC, PTFE,SS304,SS316   Diaphragm: PTFE         Check Valve: PVC, PTFE,SS304,SS316 (same as pump head selection)Valve ball: Ceramic, SS304,SS316Parameter TableModel50Hz60 HzPressureDiaphragm      Dia.      (mm)Power      kW(HP)Flow      (lph)Flow      (gph)SPMFlow      (gph)Flow      (lph)SPM(Bar)(Psi)GB 380/0.638010048120456586871480.75(1)GB 500/0.650013296159600115687GB 650/0.6650172962067801156871.5(2)GB 850/0.58502251442691020173573GB1000/0.410002641443171200173458GB1400/0.314003701444441680173344185GB1800/0.318004761445712160173344Standard ConnectionModelPVCPTFESSGB380~GB1000DN25 glue unionRC 1"FRC 1"FGB1400~GB1800DN40 glue unionRC 1.5"FRC 1.5"F