Grosvenor Pumps [India] Pvt. Ltd offers Variflow Type Diaphragm Pump. Grosvenor Pumps [India] Pvt. Ltd manufactures metering, dosing pumps & dosing system. This Variflow Type Diaphragm Pumps are available from 0-600 LPH giving a maximum pressure of 10 bar depending upon the flow rate. These pumps are provided with high efficiency ball valves & high grade of engineering plastic for the wetted parts, which enables a wide range of aggressive liquid to be handled & in the absence of any gland, offers zero leakage. The pump head is made from PP/PVC/PTFE, stainless steel, etc.