Diesel small pump / diesel irrigation pumps

Diesel small pump / diesel irrigation pumps diesel pumps, small diesel pump, 2-inch diesel pump, diesel pump price performance specifications using pumps Election pump water pump factory in catalog provides such a table, a table for each type of Performance has three lines of data, how to conduct which for sure? Numerical general design flow and design and performance head should be listed in the table in the middle row accordance with, or close to, but must fall on the range of two lines, because the range of high-efficiency pump operation area, This type of pump is considered to be in line with the actual needs of the pump be selected. More Duote He self-priming pump / High pressure pumps relevant technical understanding; please call factory Tel: 021-31253661 18721346689 QQ: 771585756 Contact: Pang Jingli Unit Type TH50DP pump inlet diameter (mm) 50 Outlet Diameter (mm) 50 Maximum flow (m3 / h) 30 Maximum lift (m) 26 Maximum suction lift (m) 8 Engine Engine Model TH170F Engine type single cylinder, tilt, four-stroke, air-cooled, swirl chamber diesel engine Bore × Stroke (mm) 70 × 54 Displacement (cc) 207 Maximum Output (HP) 3.5 Cooling Forced air cooling Starting Recoil type recoil starter Lubrication Splash Oil Capacity (L) 0.7 Oil type SAE10W-30, SAE20W-40 (CC and above ) Fuel type 0 # summer, winter -10 # diesel speed (rpm) 3000 Oil supply gravity fuel tank capacity 3.3 continuous working time 3.8 Optional electric starter × Dimensions Dimensions (mm) 490 × 430 × 445 Packing size ( mm) 505 × 445 × 470 Net / Gross Weight (kg) 29/32 pump speed is generally slow down problems. When using frequency control, according to the original state design frequency operation parameters of the pump and motor are greater changes, such as additional pipeline characteristic curve, and the governor is running in parallel pump fixed speed pump and other factors, will be on range speed of an impact. Beyond the scope of the governor it is difficult to achieve energy-saving purposes. Therefore, frequency control can not be unlimited governor. Generally believed, frequency not less than 50% of rated speed, the best in the 75% to 100%, and should be combined to determine the actual calculated. 1 Pump process characteristics influence speed range theoretically, pump speed and efficient high zone around the two end points of the intermediate region OA1A2 similar working conditions parabolic through power frequency. In fact, when the pump speed is too small, the pump efficiency The sharp decline, affected by pump speed high zone atrophy PA1A2 [2] (Obviously, if operating point beyond the region, the governor should not be used to saving the 2 fixed speed pump speed range Influence practice, water supply systems tend to be more water pumps in parallel. Due to invest in expensive, impossible to put all pumps all speed, so the general speed pump, fixed speed pumps mixing water. In such a system, it should be taken to ensure that tune speed pump with constant speed pump can run in the high segments, and to achieve optimum system. At this time, the constant speed pump on the right speed range with the speed of the pump parallel operation had a greater influence [2]. The main divided into the following two conditions: 2.1 the same model pump when a certain tone in parallel operation, although flexible scheduling, but can not take into account the work efficiently segment speed pump and fixed speed pumps, therefore, in this case the governor is running range Small 2.2 different types of pump when a certain tone in parallel operation, if the pump speed to achieve high efficiency at rated speed and efficient lift the right end segment and fixed speed pump segment equal lift the left point. you can achieve maximum range of speed run. But this time the pump speed and fixed speed pumps will never be allowed to run in parallel swap Effect 3 on the speed range of the motor efficiency under similar conditions, the generally Nαn3, so as the decline in the speed of the shaft Power will be a sharp decline, but if the motor rated power output over offset or work offset frequency excessive frequency, the motor efficiency will drop too quickly, ultimately affect the efficiency of the pump units. and continuous self-cooled motor at low speed also due to insufficient cooling air flow impact, threatening the safe operation of the motor more 多特赫 self-priming pump / High pressure pumps relevant technical understanding; please call factory Tel:. 021-31253661 18721346689 QQ: 771585756 Contact: Pang Jingli, diesel pumps, the price of diesel pumps, 168 diesel pumps, diesel agricultural pumps picture, 2-inch diesel pump, 6 horsepower diesel pumps, single-cylinder diesel engine with water pumps, diesel powered pumps, small diesel pumps, diesel pumps KAINIC, horizontal bar diesel engine pumps, high-pressure diesel pumps , diesel water pump works, small diesel pumps, diesel centrifugal pumps, diesel priming pumps, diesel small pump / 2 inch diesel pump