Several Factors Affecting the Efficiency of Centrifugal Pump

Centrifugal pump efficiency is the mechanical, volume and hydraulic three products. Pump efficiency is the product of pump efficiency and motor efficiency. Centrifugal pump group caused by the low efficiency of the following factors. 1. Pump efficiency itself is the most fundamental effect. The same working conditions of the pump, the efficiency may differ by more than 15%. 2. Centrifugal pump operating conditions lower than the rated pump conditions, low pump efficiency, high energy consumption. 3. Motor efficiency in the use of the basic unchanged. So it is important to choose a high efficiency motor. 4. The main impact of mechanical efficiency and design and manufacturing quality. After the pump is selected, the latter part of the management has little effect. 5. Hydraulic losses include hydraulic friction and local resistance loss. Centrifugal pump operation for a certain period of time, inevitably cause impeller and guide vane and other parts of the surface wear, hydraulic loss increases, reducing hydraulic efficiency. 6. Centrifugal pump volume loss, also known as leakage losses, including the impeller seal ring, interstage, axial force balance of three types of leakage losses. The level of volumetric efficiency is not only related to the design and manufacture, but also related to the latter part of management. Pump continuous operation for a certain period of time, due to the friction between the various components, the gap increases, reducing the volumetric efficiency. 7. As the filter cylinder is clogged, pipeline intake and other causes of centrifugal pump exhaust and idling. 8. Before starting the pump, the staff did not pay attention to the preparatory work before the start of the centrifugal pump. The implementation of basic operating procedures such as warm pump, disk pump and perfusion pump was not implemented thoroughly, often resulting in the cavitation of the pump, causing large pump noise, large vibration and low pump efficiency.

L Lower Abrasive Slurry Pump

1. Naipu L series lower abrasive slurry pump description

L series Rugged heavy duty slurry pump for medium to lower heads.It incorporates the same design points of the NP-AH(R) and plus higher efficiency impellers at an attractive initial cost.Designed for rugged duties while offering higher efficiencies, the NP-L series is a combination of the proven NP-AH(R) unique features.The pump is available with interchangeable liner options including both metal and various grades of elastomer depending on the application.

Typical Applications---

Chemical Process
Heavy Minerals
Plant Water Supply
Thickener Overflow
Paper and Pulp

Slag Granulation

2.L series lower abrasive slurry pump construction drawing

3. L lower abrasive slurry pump select chart

4. L Lower abrasive slurry pump performance parameters

Type	Allowable Mating Max. Power(Kw)	Clear Water Performance				Impeller
Type	Allowable Mating Max. Power(Kw)	Capacity/Q mÂ³/hr	Head/m	Speed/rpm	Max Efficiency/%	NPSH/m	Nos of Vane	Impeller Diameter/mm
20A--NP-L	7.5	2.34-10.8	6--37	1400--3000	30		4	152.4
50B-NP-L	15	16.2--76	9--44	1400--2800	55	3.5--8	5	190
75C-NP-L	30	18-151	4--45	900--2400	57	3--6	4	229
100D-NP-L	60	50-252	7-46	800--1800	60	2--3.5	4	305
150E-NP-L	120	115--486	12-51.5	800--1500	65	2--6	4	381
200E-NP-L	120	234--910	9.5--40	600--1100	64	3-6	4	457
250F-NP-L	120	396--1425	8--30	500--800	77	2--10	5	550
300S-NP-L	560	468--2538	8--60	400--950	79	2-10	5	653
350S-NP-L	560	650--2800	10--59	400--840	81	3--10	5	736
400ST-NP-L	560	720--3312	7--51	300--700	80	2--10	5	825
450ST-NP-L	560	1008--4356	9--48	300--600	80	2--9	5	933
550TU-NP-L	1200	1980-7920	10-50	250-475	86	4-10	5	1213

Lower Duty Slurry Pump,AH Mining Pump,L Lower Abrasive Slurry Pump,Lower Duty Slurry Pumps

Shijiazhuang Naipu Pump Co., Ltd. , https://www.naipu-pump.com