NL-type sewage mud pump Product Category: Diameter: Φ50-Φ150 (mm) Flow: 20-180 (m3 / h) Head: 8-20 (m) Applicable medium: thick liquid, filling and sewage operations suspended matter, too can be used for mine drainage and the introduction of fluid product containing a lump of clay, NL-type sewage mud pump Product Overview This pump is single stage single suction vertical centrifugal pump, fluid along the shaft axis 70 ° from the direction of flow, the main components are volute impeller, pump housing, the pump housing, the support tube, motor base, motor and so on. Volute, pump housing, motor housing, impeller nut is cast iron, wear resistance, corrosion better, easy to process. The impeller is three-chip single-leaf garden string bending, use a semi-enclosed impeller, and the use of malleable iron, so high-strength, corrosion-resistant; easy to process, through the good, high efficiency. Turning to reduce weight and reduce the amount of high-quality carbon steel shaft is cold-drawn bar manufacturing. The seat is equipped with four pump oil seal and sleeve to prevent shaft wear and prolong the service life of the shaft. The pump can be vertical or inclined to use, small footprint, volute need to be buried in the working medium, easy to start, not need water, from the direction of motor rotation is clockwise tail to see the work. switchboard length with a variety of specifications for the use of units chosen according to local conditions according to use Second, NL-type sewage mud pump application 1, is mainly used in rural river mud , manure, water, slurry feedstuff poured, instead of man labor, and do flood and drought control, can also be carried out car Hamamatsu head, the river mud, manure production, can also be used simply as a traveling fire pump. 2, can be municipal, chemical, printing and dyeing, pharmaceutical, shipbuilding, foundry, food and other industries pump thick liquid, dirt-etching solution, a paste form, stream flow river sand and city sludge, etc., it can also be used in coal mines containing mud block small gravel fluids. 3, if the high-pressure pump and water gun, hydraulic mechanized earth work unit, used as anti-aircraft engineering excavation and transportation in the city ,, as well as land leveling, river and pond dredging, drilling and other small hydraulic engineering, underground project. 4, clear pond fish used with water, oxygen and other pond. Three, NL-type sewage mud pump Features 1, the flow part of bearing wear parts are made of cast iron, a longer service life. 2, pump compact, small size, easy to move, easy to install and so on. 3, the pump for the vertical structure, while working pump immersed in the liquid and therefore very easy to start, there is no exhaust evacuation problems, but with no leakage, etc., liquid depth length can be customized according to customer demand. 4, then the shaft structure is advanced and reliable, pump and motor with coupling connection, shaft size precision, to ensure the smooth operation of the pump, with sufficient safety factor. Four, NL-type sewage mud pump Model significance For example: NL150A-12 N- L- vertical 150- mud pump outlet diameter (mm) A- improved (mechanical seals) 12- lift (m) five, NL-type sewage mud pump The main performance parameters Model flow m3 / h Head m Efficiency% Power KW Speed ??r / min NL50-8 20-30 8-9 42 1.5 1450 NL50A-8 20-30 8-9 42 1.5 1450 NL50-12 25-38 12- 14 41 3 1450 NL50A-12 25-38 12-14 41 3 1450 NL65-16 50-60 15-18 42 5.5 1450 NL65A-16 50-60 15-18 42 5.5 1450 NL76-9 50-70 9-10 42 3 1450 NL76A-9 50-70 9-10 42 3 1450 NL80-12 80-120 11-13 56 7.5 1450 NL80A-12 80-120 11-13 56 7.5 1450 NL100-16 80-100 15-17 61 15 1450 NL100A-16 80-100 15-17 61 15 1450 NL150-12 100-150 11-13 66 18.5 1450 NL150A-12 100-150 11-13 66 18.5 1450 NL150-16 120-180 15-20 68 22 1450 NL150A- 16 120-180 15-2068221450 six, NL-type sewage mud pump Caution 1, the pump using the power must be three-phase four-wire system, the absence of a ground wire, must be installed to prevent leakage. Work shall be consistent with the nearest equipped motor circuit fuses and switches, to prevent burn out the motor impeller debris card when he died. 2, when using this pump does not have to install any base unit that is able to operate, as long as the leaning firm can, if necessary, with a rope fastened to prevent accidents. Must be checked after starting the motor rotation direction can not be reversed over one minute. 3, when sucking the liquid contains more weeds, wire, wood, bricks and other debris must be removed as far as possible in advance and may take Placing blue wire and other methods to prevent debris suction pump cause impeller broken, stuck and blocked pipes and other accidents. 4, after the suction pump and other dirty things should be given to short-term water absorption, to flush the pump and piping inside. 5, in the open air, motor shield should be installed to prevent rain water immersion motor. 6, in the river, the bottom suction should be hung on a tripod price, and put in the float or move operation on board, during earthworks operations, water cannons rushed broken clods diameter of not more than one-third of the intake port One. 7, the pump is specified speed is the highest speed of the pump can not arbitrarily increase; reduce speed use is not limited, but the effectiveness is significantly reduced. 8, The pump suction thick mud, thick liquid or high-lift, long-distance transport of mud, reduce the load, but can not change the structure of the method to increase the load. 9, the normal operation of 1250 hours or so, carry out regular maintenance of the pump, remove the pump bearing housing Check the seals and pumps, clean and replace butter, replace the seals, bushings and other parts when necessary. Caution maintenance and replacement parts can be found at the installation. (Transfer pump mechanical seal operation around 3500 hours for regular maintenance). 10, when the long-term stop using the volute should open, dry parts and the joining surfaces in relative motion coated with book oil, stored in a dry place for later use to prepare.