3, the pump head is less than the actual need D25-50 * 5 multi-stage pump 125 meters when, according to the pumping station area, pump prices (multi-stage pump is generally higher than the price of a single-stage pumps), and other factors considered in the selection of a single-stage pump or multi-stage pump. Too many to be leaking oil along the shaft and drift * D25-50 * 9 multistage pumps, but also too little bearing overheating burn accident! The pump during operation of the bearing maximum temperature of 85 degrees in the general run at about 60 degrees, and if necessary to find the cause of high (if there are impurities, oil is black, is water) and timely manner! D25-50 * 5 multistage pump _ _] [Stone sent a multistage pump provided by Shijiazhuang-school Pump Company. Shijiazhuang-faction Pump Co. (www.shipaipump.com) quality services and products, and are subject to approval and confidence in the new and old customers and the industry. Our company is a certified member of the whole network Commercial Union, Commercial Union customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!