Corrosion-resistant fluoroplastic alloy centrifugal pump use note

1. Installing a suction culvert, the correct way is: the horizontal section should be slightly tilted towards the water, should not level, more may not be tilted upward. If the inlet pipe and the water pump inlet diameter was equal, should be in between water pump inlet and bend tube, straight tube length shall not be less than 2 ~ 3 times the diameter of the pipe. Water pump inlet attached directly to the elbow can make uneven distribution in bend into the impeller. When the inlet pipe diameter is greater than the pump inlet should be installed eccentric variable diameter tube. Eccentric reducer the in-plane part to put on it, cant part in below. Can't otherwise gathered the air, water yield reducing or water, and a sound, etc. 2. The inlet pipe inlet from the bottom and the water pool wall distance is less than the inlet diameter. If there's such as silt dirt, water inlet from the bottom of the distance is less than the diameter of the 1. Five times, will cause poor when pumping water or breathe in sediment of sundry, blocking water inlet. Inlet pipe inlet into the water depth is not enough, it will cause pressure pipe produces spiral around the surface of the water, water, reduce water yield. The correct installation method is: small and medium-sized water pump into the water depth is not less than 300 ~ 600 mm, a large water pump shall not be less than 600 ~ 1000 mm. Feed line on the road with the elbow, can increase the local flow resistance. And bend should turn in the vertical direction, are not allowed to turn in a horizontal direction, in order to avoid air. 3. For centrifugal water pump type is determined, the size of the consumed power is proportional to the actual flow pump. And pump flow will decrease with the increase of the head, and the higher the head, the smaller the flow, and the smaller power consumption. Conversely, the lower the head, flow rate, the greater the consumption of power. Therefore, in order to prevent the motor overload, general requirements the actual water use head of the pump shall not be less than 60% of the labeling head. So when the high-lift pump used for low head pumping motor easy to overload and fever, serious when can burning motor. If emergency use, must be in the outlet pipe with a valve is used to adjust the water yield, to reduce the flow, to prevent the motor overload. Pay attention to the motor temperature rise, if discover motor overheating, should be timely down outlet flow or turn it off. It is also easy to produce misunderstanding, some machinist think blocking outlet, forced to reduce traffic, can increase the motor load. Actually just the opposite, regular high fluorine plastic centrifugal pump irrigation and drainage units are fitted on the outlet pipe of gate valve, in order to reduce the unit startup of motor load, outlet valve, should be shut down for motor start and then gradually open valve is this truth. 4. When the water pump model is determined, the total head is certain; Head loss mainly comes from the pipeline resistance, the smaller the diameter is obviously the greater the resistance, and therefore the greater the loss of head, so reduce the pipe diameter, the actual head of pump instead of increased, it will reduce, to lower the pump efficiency. By the same token, when small diameter water pump with large water pumping, also won't erode the real value of the pump head, may because of the line in order to reduce the loss of the head with the decrease of the resistance, the actual lift have improved. There is also a machinist think small diameter water pump with large water pumping, will greatly increase the motor load, after they think diameter increases, the water in the outlet pipe of pump impeller pressure is big, so will greatly increase the motor load. Only the size of the liquid pressure associated with head high and low, and have nothing to do with the size of the pipe sectional area. As long as the head must be, water pump impeller size remains the same, no matter how big pipe diameter, pressure effect on the impeller is certain. Just pipe diameter increases, the flow resistance will decrease, and make the flow rate increases, power consumption are increasing. But as long as within the scope of rated head, no matter how to increase the water pump diameter can be normal work, and also can reduce line losses, improve the efficiency of the pump. 5. Equipped with foot valve inlet pipe in the next section is not vertical installation, the valve cannot be closed by, caused by leakage. Correct installation method is: with a bottom valve inlet pipe, the next section is vertical. If the outlet in a pool of normal water level above, although increased the pump head, but reduces the traffic. Outlet must be out of the pool water level, the higher the terrain conditions cannot be installed vertically, the pipe axis and horizontal plane Angle should be 60 & deg; The above. Should be in the nozzle with elbow and short tube, make water siphon, reduce the height of outlet.
J&T INDUSTRY CO.,LTD. is recognized as one of the leading manufacturer of in China.Trust in us and make J&T INDUSTRY CO.,LTD. your water pump supplier. Our products will bring more economic value to you.
J&T INDUSTRY CO.,LTD., to be the world leader in products, services and solutions that enable and transform the way consumers and businesses gather, manage, distribute and communicate information.
J&T INDUSTRY CO.,LTD. has enlarged the scope of services, which can fully please customers' demands.
The value you get from watching how J&T INDUSTRY CO.,LTD. operates and runs our company and the potential mentorship you would get from us will go a long way towards helping customers understand our company.