SAP type single-stage double suction split pump-End Suction Pump

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SAP type single-stage double suction split pump

Flow: 72-10800m³/h
Lift: 15-280m
Efficiency: 69%-90%
Pump weight: 110-25600kg

SAP type single-stage double suction split pump

Flow: 3.7-1350m³/h
Flow: 3.7-1350m³/h
Flow: 3.7-1350m³/h
Flow: 3.7-1350m³/h
Flow: 3.7-1350m³/h
Motor power: 3.7-1120kw

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Advantages Working conditions Product introduction Model meaning technical parameter Structural features

Product classification

Advantages

Working conditions

Product introduction

• Flow: 72-10800m ³/ h

• Lift: 15-280m

• Efficiency: 69% - 90%

• Pump weight: 110-25600kg

• Motor power: 11-2240kw

NPSH: 1.79-10.3m

SAP single-stage double suction split pump is a single-stage, double suction horizontal split centrifugal pump, which is suitable for factories, cities, mines, power stations, farmland, water conservancy projects and other fields. It is used to transport clean water without solid particles or other liquids with physical and chemical properties similar to water. The temperature of the medium to be transported is 0 ℃~80 ℃, and the allowable large inlet pressure is 0.6MPa. performance parameter

Parameter range and model description of SAP single-stage double suction horizontal split centrifugal pump:

Flow Q 72~20000 m3/h

Lift H 6.8~186m

Model: 300SAP-90

300 - suction diameter 250mm

90 - Lift

SAP single-stage double suction horizontal split centrifugal pump structure type:

The sap type horizontal double suction split pump is horizontally installed. The pump casing is horizontally separated from the shaft centerline. The upper part is the pump cover and the lower part is the pump body. The suction inlet and discharge outlet are both on the pump body below the pump axis, where the centerline is vertical to the axis. During maintenance, the pump cover can be removed and the rotor parts can be taken out without removing the water inlet and outlet pipelines. Except that 48SAP-30 pump is a sliding bearing, other types of pump bearings are rolling bearings, and the seal of bearing end cover is skeleton oil seal. The shaft seal adopts soft packing seal and mechanical seal.

Rotation direction: from the motor end to the pump, it rotates counterclockwise, that is, the suction inlet is on the left and the discharge outlet is on the right. The drive end can also be moved to the other end of the pump according to the user's requirements. At this time, the direction of rotation, suction and discharge is opposite to the above.

Material of main parts: the flow passage components of the pump are made of cast iron. If required by the user, the impeller can also be made of cast steel and brass, but it must be noted in the order contract.

Specific parameters of SAP single-stage double suction horizontal split centrifugal pump:

参数型号	流量 Q		扬程 H	转速 n	轴功率 Pa	配带电动机		效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	流量 Q		扬程 H	转速 n	轴功率 Pa	功率	型号	效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	m3/s	L/s	m	r/min	kw	kw	型号	%	m	mm	mm	kg
6SAP-6	126 180 216	35.0 50.0 60.0	104 97 87	2980	49 59.5 64.8	75	Y280S-2	73 80 79	3.0 3.8 5.3	270	150 100	160
6SAP-6A	119 170 204	33.1 47.2 56.6	91 84.5 76	2980	42 50 54.7	75	Y280S-2	70 78 77	3.0 3.7 4.7	256	150 100	160
6SAP-6J	72 90 108	20.0 25.0 30.0	25 22.5 20	1480	6.71 7.45 8.4	11	Y160M-4	73 74 70	2.6 2.7 2.9	270	150 100	160
6SAP-8	108 160 193	30.0 44.5 53.5	58 54 50	2980	24.4 29 31.2	37	Y200L2-2	70 81 84	2.9 3.8 4.4	205	150 100	120
6SAP-8A	108 144 174	30.0 40.0 48.3	46 44 39	2980	18 21.6 23	30	Y200L1-2	76 80 80	2.9 3.6 4.1	185	150 100	120
6SAP-8B	108 133 160	30.0 36.9 44.5	38 36 32	2980	15.5 17 18	22	Y180M-2	72 77 77	2.9 3.4 3.8	170	150 100	120
8SAP-7	216 280 336	60.0 77.8 87.2	99 95 87	2980	78.6 90.8 101	132	Y315M-2	74 80 79	4.0 4.7 6.0	272	200 125	255
8SAP-7A	210 262 314	58.4 72.8 87.2	87 83 74	2980	68.2 77 83.2	110	Y315S-2	73 77 76	4.0 4.5 5.7	255	200 125	255
8SAP-7B	196 247 300	54.4 68.6 83.4	76 73 63	2980	57 64.6 71.5	75	Y280S-2	72 76 72	4.0 4.2 5.4	240	200 125	255
8SAP-10	194 280 351	53.9 77.8 97.5	71 63 52	2980	52.1 59.3 65.4	75	Y280S-2	72 81 76	2.8 4.1 5.3	235	200 150	180
8SAP-10A	180 259 324	50.0 72.0 90.0	58 52 41	2980	40.6 46 50.2	55	Y250M-2	70 79 72	2.7 3.8 4.9	217	200 150	180
8SAP-10B	173 239 288	48.0 66.4 80.0	48 44 36	2980	32 36.7 38	45	Y225M-2	70 78 74	2.6 3.5 4.2	200	200 150	180
10SAP-6	432 540 720	120.0 150.0 200.0	96 94 89	1480	162.6 177.2 215.5	250	Y355M2-2	74 78 81	5.1 6.3 9.2	530	250 200	860

参数型号	流量 Q		扬程 H	转速 n	轴功率 Pa	配带电动机		效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	流量 Q		扬程 H	转速 n	轴功率 Pa	功率	型号	效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	m3/s	L/s	m	r/min	kw	kw	型号	%	m	mm	mm	kg
10SAP-6A	432 540 720	120.0 150.0 200.0	85.3 84 76	1480	129 154.5 186	220	Y355M1-4	77.6 80 80	5.1 6.3 9.2	500	250 200	860
10SAP-6B	432 540 720	120.0 150.0 200.0	76.4 74 67	1480	121 137.8 164	185	Y355M-4	74 79 80	5.1 6.3 9.2	470	250 200	860
10SAP-6J	400 500 600	111.1 138.9 166.7	42 39 35	980	58.7 65.6 72.5	90	Y315M-6	78 81 79	3.6 4.7 6.6	530	250 200	860
10SAP-6JA	300 400 500	83.3 111.1 138.9	36.9 36 33	980	39 49.6 56	75	Y315S-6	76.4 79 80	3.3 3.6 4.7	500	250 200	860
10SAP-6JB	300 400 500	83.3 111.1 138.9	33 32 28	980	34.7 44 48	55	Y280M-6	77.5 79 79	3.3 3.6 4.7	470	250 200	860
10SAP-6F	400 500 600	111.1 138.9 166.6	66.4 65.6 62.5	1480	95.2 113.1 131	160	Y315L1-4	76 79 78	4.6 5.7 7.5	445	250 200	860
12SAP-4	450 540 648	125.0 150.0 180.0	144 140 135	1480	245 271 301	355	Y400-4	72 76 79	2.3 2.7 3.2	634	300 250	1550
12SAP-10	610 790 900	169.4 219.4 250.0	59 54 47.8	1480	114 132 138	160	Y315L1-4	86 88 85	4.1 4.6 5.1	418	300 250	1070
14SAP-4	800 1000 1200	222.2 277.8 333.3	186 180 167	1480	544 613 696	710	Y450-4	74.5 80 78.5	3.4 3.5 4.3	724	350 250	2150
14SAP-10	900 1080 1260	250.0 300.0 350.0	70 68 64	1480	206.5 230 250	280	Y355-4	83 87 88	5.1 6.3 6.9	466	350 300	1250
14SAP-10A	900 1080 1260	250.0 300.0 350.0	60 58 54	1480	175 196 212	250	Y355-4	84 87 87	5.1 6.3 6.9	440	350 300	1250
14SAP-10B	900 1080 1260	250.0 300.0 350.0	51 48 44	1480	148 162 180	220	Y355M-4	84 87 87	5.1 6.3 6.9	425	350 300	1250
14SAP-10J	650 800 1000	180.6 222.2 277.8	30 28 24	980	62.5 70.2 77	90	Y315M-6	85 87 84	4.0 4.1 5.1	466	350 300	1250

参数型号	流量 Q		扬程 H	转速 n	轴功率 Pa	配带电动机		效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	流量 Q		扬程 H	转速 n	轴功率 Pa	功率	型号	效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	m3/s	L/s	m	r/min	kw	kw	型号	%	m	mm	mm	kg
14SAP-10JA	600 720 900	166.7 200.0 250.0	27 25 22	980	52.5 56 62.7	75	Y315S-6	84 87 86	4.0 4.0 4.1	440	350 300	1250
14SAP-10JB	600 720 900	166.7 200.0 250.0	23 21 18	980	44.2 47 52	75	Y315S-6	85 87 85	4.0 4.0 4.1	425	350 300	1250
14SAP-10F	450 547 684	125.0 151.9 190.0	15.6 14.5 12.7	742	22.8 25.1 27.5	37	Y280S-8	84. 86 85	5.8	440	350 300	1250
14SAP-20	870 1320 1550	241.7 366.7 430.6	33 26 21.5	1480	101.5 110 111	132	Y315M-4	77 85 81.5	5.8 7.8 10.1	340	350 300	1330
16SAP-9J	900 1080 1260	250.0 300.0 350.0	42 40 37	980	129 140 150	185	Y355M-6	80 84 85	4.6 4.9 5.2	535	400 350	1980
16SAP-9JA	900 1080 1260	250.0 300.0 350.0	37 35 32	980	111.9 122.5 130.7	160	Y315M-6	81 84 84	4.6 4.9 5.2	510	400 350	1980
16SAP-9JB	800 900 1080	222.2 250.0 300.0	33 32 30	980	89.8 94 102.6	132	Y315M-6	80 83 86	4..6 4.6 4.9	480	400 350	1980
16SAP-10	1120 1400 1680	311.1 388.9 466.7	91 86 77	1480	333 370 396	500	Y400-4	83.3 88.8 88.9	5.9 6.4 7.5	530	400 350	1980
16SAP-13	1100 1500 1650	305.6 416.7 458.3	58.5 50 46	1480	210 234 238	280	Y355-4	83.6 87.3 87	8.2	445	400 350	1350
20SAP-4	1500 2000 2730	416.7 555.6 758.3	171 165 140.6	980	949 1112 1449	1600	Y630-6	73.7 80.9 72.2	3.1 3.2 4.5	1050	500 400	6050
20SAP-5	1667 2000 2400	463.1 555.6 666.7	130.4 127.5 120.6	980	812.8 885.4 957.4	1120	Y500-6	72.8 78.14 82.3	4.0 4.8 6.0	955	500 350	3750
20SAP-6	1500 2160 2500	416.7 600.0 694.4	112 100 87.5	980	572 700 740	800	Y500-6	80 84 80.5	3.4 4.6 5.6	830	500 300	5700
20SAP-10	1500 2160 2500	416.7 600.0 694.4	65.5 60 55.5	980	339 400 434	500	Y450-6	79 88 87	6.6	690	500 400	4168

参数型号	流量 Q		扬程 H	转速 n	轴功率 Pa	配带电动机		效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	流量 Q		扬程 H	转速 n	轴功率 Pa	功率	型号	效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	m3/s	L/s	m	r/min	kw	kw	型号	%	m	mm	mm	kg
20SAP-14	1920 2160 2400	533.3 600.0 666.7	33 32 28	980	200.6 207 210	280	Y400-6	86 88 87	3.8 4.2 5.0	505	550 450	3740
20SAP-20	1620 1800 1980	450.0 500.0 550.0	38 37 35	1480	212 221 225	250	Y400-6	79 82 84	6.4 7.3 9.0	393	500 400	1660
20SAP-22	1368 1980 2304	380.0 550.0 640.0	26.2 21 17.5	980	122 133 137	160	Y355M-6	80 85 80	4.4 5.2 5.8	466	500 400	1660
20SAP-22A	1260 1800 2088	350.0 500.0 580.0	21 16 12.4	980	90 92 88	110	Y315S-6	80 85 80	4.3 4.9 5.4	425	500 400	1660
20SAP-22J	1080 1450 1800	300.0 402.8 500.0	16.3 14 10.7	742	61.4 65 66.8	75	Y315M-8	78 85 78.5	2.8 4.0 7.1	466	500 400	1660
20SAP-22JA	1080 1300 1627	300.0 361.1 451.9	10.3 9.5 6.8	742	37 39.6 39	55	Y315S-8	82 85 78	2.8 3.5 5.6	425	500 400	1660
20SAP-28	1585 2160 2340	440.0 600.0 650.0	16.4 13 12	980	86.2 87.7 87.3	110	Y315S-6	82 87 87.5	4.7	385	500 500	1660
24SAP-6	2880 3240 3960	800.0 900.0 1100	102 100 93	980	931 1003 1134	1250	Y560-6	86 88 86.5	6.2 6.4 7.2	820	600 400	5490
24SAP-10	2592 3420 3600	720.0 950.0 1000	78 71 69	980	649 727 730	900	Y500-6	85.5 89.5 89	5.6 9.1 10.1	716	600 500	4100
24SAP-10B	2338 3084 3248	649.4 856.7 902.2	63.5 57.8 56.2	980	472.8 545 558	630	Y450-6	85.5 89 89	4.6 7.3 8.2	655	600 500	4100
24SAP-10J	2160 2700 2970	600.0 750.0 825.0	43 39 36	742	290 322 334.6	400	Y450-8	87 89 87	5.6 5.9 8.2	716	600 500	4100
24SAP-14	2520 3200 3960	700.0 888.9 1100	54.5 50 42.7	980	460 513 549	630	Y450-6	81.5 85 84	5.3 6.6 11.2	624	600 450	4200
24SAP-18	2700 3240 3600	750.0 900.0 1000	33.5 32 26	980	292 317.5 298	400	Y400-6	84.5 89 85.5	6.1 7.4 9.7	550	600 500	3500

参数型号	流量 Q		扬程 H	转速 n	轴功率 Pa	配带电动机		效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	流量 Q		扬程 H	转速 n	轴功率 Pa	功率	型号	效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	m3/s	L/s	m	r/min	kw	kw	型号	%	m	mm	mm	kg
24SAP-18A	2520 3000 3165	700.0 833.3 879.2	25.5 23 19.2	980	206 23 19.2	250	Y355-6	85 89 84	6.0 6.4 8.1	490	600 500	3500
24SAP-18J	2070 2600 2720	575.0 722.2 755.6	18.8 17.5 16	742	126 134 141	160	Y355M-8	84 89 84	3.7 4.4 5.5	535	600 500	3500
24SAP-18JA	1908 2000 2520	530.0 555.6 700.0	14.7 13.5 11.2	742	85.6 86.5 88.3	110	Y315L2-8	84.5 85 87	3.2 3.7 4.4	490	600 500	3500
*24SAP-18D	2160 3140 3450	600.0 900.0 958.0	23.2 16 14.2	742	166.4 166 163.6	200	Y355M-8	82 85 81.6	4.7 5.1 5.5	539	600 500	3500
*24SAP-18F	1800 3000 3375	500.0 833.3 937.5	33.2 26.5 23.2	980	241.6 261.8 262.6	315	Y400-6	67.4 82.7 81.2	4.6 4.0 5.1	510	600 500	3500
24SAP-28	2412 3204 4356	670.0 890.0 1210	25.1 21 12.7	980	205 208 184	250	Y355-6	80 88 82	5.9 6.2 6.5	455	600 600	3200
26SAP-10	3217 4035 4190	894 1121 1164	145 130 127.3	1480	1537 1666 1687	2000	Y560-4	82.5 86.2 86.3	6.0 7.9 8.4	695	650 500	5500
28SAP-9J	2111 3600 4200	586 1000 1167	60.1 52 43.8	742	432 569 604	630	Y500-8	80 89.6 83	4.4 5.4 8.9	840	700 500	6800
28SAP-12	4300 5300 6000	1194 1472 1667	80.4 74 66.6	980	1095 1205 1248	1400	Y560-6	86 88.6 87.2	5.9 6.9 9.3	780	700 500	6450
28SAP-25	4000 5025 5500	1111 1396 1528	22.5 20 18	742	298 313 320	400	Y450-8	82 87 84	7.3 7.8 8.0	585	700 700	5000
32SAP-9	4680 6340 7200	1300 1761 2000	87.4 79 70	742	1303 1550 1605	1800	Y710-8	85.8 88 85.5	6.6 7.6 11.2	1025	800 600	8250
32SAP-10	6300 8280 9900	1750 2300 2750	73.5 67.5 57.5	742	1510 1720 1856	2240	Y710-8	83.5 88.5 83.5	5.9 7.0 8.5	990	800 600	8680
32SAP-10A	5940 7920 9540	1650 2200 2650	67.8 62.5 52.5	742	1321 1523 1643	1800	Y710-8	83 88.5 83	5.8 6.7 8.5	950	800 600	8680

参数型号	流量 Q		扬程 H	转速 n	轴功率 Pa	配带电动机		效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	流量 Q		扬程 H	转速 n	轴功率 Pa	功率	型号	效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	m3/s	L/s	m	r/min	kw	kw	型号	%	m	mm	mm	kg
32SAP-10B	5760 7200 8820	1600 2000 2450	59 53.5 46.5	742	1129 1213 1370	1600	Y630-8	82 86.5 81.5	5.7 6.3 7.5	885	800 600	8680
32SAP-10J	4860 6480 8100	1350 1800 2250	48.3 44.2 35.5	590	780 881 960	1120	Y630-10	82 88.5 81.5	3.7 4.2 5.3	990	800 600	8680
32SAP-10JA	4680 6300 7740	1300 1750 2150	44 40.5 33	590	684 785 848	1000	Y630-10	82 88.5 82	3.6 4.0 5.0	950	800 600	8680
32SAP-10JB	3960 5400 6480	1100 1500 1800	31.5 28.5 24	495	414 474 510	560	Y560-12	82 88.5 83	2.8 3.1 3.6	952	800 600	8680
32SAP-12	3960 5400 6300	1100 1500 1700	72.5 63 51	980	930.8 1018 1029	1120	Y560-6	84 91 85	5.0 6.2 7.9	740	800 800	5750
32SAP-12J	2880 3780 4680	800.0 1050.0 1300.0	41.3 37.5 30	742	383.3 419.6 450	500	Y5001-8	84.5 92 85	2.7 3.2 4.3	740	800 800	5750
32SAP-13	4500 5400 6600	1250 1500 1833	57 53 44	742	794 863 880	1000	Y560-8	88 90.4 90	3.5 4.6 6.2	870	800 600	6650
32SAP-19	4390 5400 5760	1219.4 1500 1600	33.3 29 26.3	742	470 474 485	560	Y500-8	84.6 90 85	6.3 8.2 10.3	708	800 600	5740
32SAP-19A	4170 5000 5470	1158.3 1388.9 1519.4	29.3 26 23.7	742	391.5 393.4 415	500	Y500-8	85 90 85	6.1 7.2 9.3	670	800 600	5740
32SAP-19B	3654 4700 5220	1015.0 1305.6 1450.0	23.7 20 17	742	276 284 282.6	355	Y450-8	85.5 90 85.5	6.0 6.3 8.2	616	800 600	5740
32SAP-19J	3456 4320 4615	960.0 1200.0 1282.0	21.6 18.6 17	590	231.5 243 254	280	Y450-10	87.8 90 84.1	3.5 5.0 6.4	708	800 600	5740
32SAP-19JA	3240 4000 4320	900.0 1111.1 1200.0	19.1 16.5 15.2	590	192.6 199.7 204.6	250	Y450-10	87.5 90 87.5	4.0 4.5 6.1	668	800 600	5740
32SAP-19JB	2880 3800 3960	800.0 1055.6 1100.0	15.8 13 11.8	590	146.6 151 147	200	Y450-10	84.5 89 86.5	3.9 4.0 4.4	610	800 600	5740

参数型号	流量 Q		扬程 H	转速 n	轴功率 Pa	配带电动机		效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	流量 Q		扬程 H	转速 n	轴功率 Pa	功率	型号	效率 η	必须汽蚀余量	叶轮名义直径	进出口径	泵重
	m3/s	L/s	m	r/min	kw	kw	型号	%	m	mm	mm	kg
32SAP-19E	4320 5278 6034	1200.0 1466.0 1676.0	36.8 33.8 29.6	742	512 529 559	630	Y500-8	84.5 89 87	5.9 6.4 9.4	730	800 600	5740
32SAP-19F	3600 4680 6000	1000.0 1300.0 1667.0	27.3 23.2 14	742	320 332 301	400	Y450-8	83.7 89 76	5.8 8.3 11.5	630	800 600	5740
32SAP-25	4320 5400 6300	1200.0 1500.0 1750.0	25.2 22.3 17.4	742	352 367 364	400	Y450-8	84.2 89.3 82	5.1 5.9 6.8	620	800 600	6000
36SAP-13	6800 8000 9200	1888.9 2222.2 2555.6	39.5 36 30.5	495	861 891 900	1120	Y710-12	85 88 85	4.5 4.8 5.7	1068	900 700	17700
36SAP-28	7200 9180 10800	2000 2550 3000	32 27.5 22.5	742	760.5 781 769.5	900	Y560-8	82.5 88 86	11.0 10.2 11.4	715	900 900	12800
40SAP-11	7000 8600 11000	1944.4 2388.9 3055.6	48 45 37	495	1099 1221 1296	1600	Y800-12	83.6 86.4 85.6	3.7 4.3 6.0	1178	1000 800	13200
44SAP-14	8100 10800 12600	3250 3000 .3500	45.2 41 36.2	495	1187 1325 1404	1600	Y800-12	84 91 88.5	5.0 5.5 6.6	1120	1100 900	17800
44SAP-25	8100 11700 13140	2250.0 3250.0 3650.0	29.6 26.1 23.2	495	793.9 936 950.5	1120	Y710-12	82.3 88.9 87.4	6.1 6.2 6.9	1000	1100 900	16500
48SAP-30	17000 19000 20000	4722.2 5277.8 5555.6	21 18.4 16.5	1250	1080 1073 1045	1250	Y710-12	90 88.7 86	8.5 9.1 10.2	1010	1200 1200	24800

Assembly and disassembly of pump

1. Assembly of rotor parts: for the packing pump, install the impeller, shaft sleeve, shaft sleeve nut, packing ring and packing in turn

The packing gland, water retaining ring and bearing components shall be sleeved with double suction seal ring, and then the coupling shall be installed. For the mechanical seal pump, install the impeller, shaft sleeve, mechanical seal retaining sleeve, mechanical seal moving ring, static ring, mechanical seal gland, bearing components in turn, and cover the double suction seal ring, and then install the coupling.

2. Respectively check the radial runout of the outer circle of the seal part and the outer circle of the shaft sleeve of the impeller on the rotor part, which shall not exceed the value specified in the following table (mm)

名义直径	<50	50-120	125-250	250-500	500-800	800-1250
跳动量	0.03	0.04	0.05	0.06	0.08	0.1

3. Install the rotor parts and studs on the pump body, install the bearing body gland, and adjust the axial direction of the impeller with the shaft sleeve nut

Position to the middle of the pump body flow passage and fix it. The bearing body gland shall be fastened with fixing screws.

4. Place the split face paper pad, cover the pump cover, tighten the taper pin of the screw tail, and then tighten the pump cover nut. For packing pumps,

Do not press the packing too tightly. If the packing is too tight, the shaft sleeve will heat up. At the same time, the energy consumption will increase. Do not press too loosely. If the packing is too loose, the liquid leakage will increase and the pump efficiency will decrease.

After the assembly is completed, rotate the pump shaft by hand without rubbing, and rotate it gently and evenly. The disassembly can be carried out in the reverse order of the above assembly.

Precautions for pump installation

1. Check whether the water pump and motor are damaged.

2. The installation height of the water pump, together with the hydraulic loss of the suction pipeline and its speed energy, shall not be greater than the allowable suction vacuum height specified in the sample. The foundation size shall conform to the installation size of the pump unit.

3. Installation sequence

Put the water pump and motor on the foundation bolt, put on the nut, and place them on the concrete foundation with the reserved foundation bolt hole.

Use the method of adjusting wedge cushion block to correct the level, and calibrate the coaxiality of pump and motor shaft. Then fill all anchor bolt holes with concrete.

(2) After the concrete is dry and solidified, the coaxiality of the pump and motor shaft shall be corrected on the outer circle of the two couplings, and the error shall not be greater than 0.1mm. The tolerance of the non-uniformity of the end machine clearance along the circumference is 0.3mm. After fastening the anchor nut, check the correction accuracy, and then fill the bottom of the motor and pump foot with concrete, but space must be left around the wedge block

(3) After checking that the rotation direction of the motor is consistent with that of the water pump, install the coupling pin.

4. The water inlet and outlet pipes shall be supported by another support, not by the pump body.

5. The joint surface between the water pump and the pipeline shall ensure good air tightness, especially the inlet and outlet water pipes must be strictly air tight, and there shall be no possibility of trapping air on the device.

6. If the water pump is installed above the water inlet level, in order to fill and start, the bottom valve should be installed, or the method of vacuumizing water can be used.

The above are the installation methods and requirements for the pump unit without a common base

Refer to the above method.

7. Generally, gate valve and check valve shall be installed between the water pump and the outlet pipe (not required if the lift is less than 20m), and the check valve shall be installed behind the gate valve.

Start, stop and operation of pump

1 Start and stop:

Before starting: rotate the rotor of the pump, and it should slide gently and evenly.

(2) Close the water outlet gate valve and inject water into the pump (if there is no bottom valve, use a vacuum pump to draw water). Ensure that the pump is full of water and free of air.

(3) If a vacuum gauge or pressure gauge is installed on the pump, close the cock connected to the pump before starting the motor, open it after the speed is normal, and then gradually open the outlet gate valve. If the flow is too large, you can properly close the valve to adjust, otherwise, if the flow is too small, open the gate valve.

(4) Tighten the compression nuts on the packing gland evenly to make the liquid leak out in drops, and pay attention to the temperature rise at the packing chamber.

(5) When the pump is stopped, first close the cocks of the vacuum gauge and pressure gauge and the gate valve on the outlet pipe, and then turn off the power supply of the motor. If the ambient temperature is low, open the square screw plug at the lower part of the pump to remove the residual water to avoid frost cracking.

(6) When it is not used for a long time, the water pump shall be disassembled, the water on the parts shall be wiped dry, and the processing surface shall be coated with antirust oil for safekeeping.

2 Operation:

(1) The high temperature of water pump bearing shall not exceed 750C.

(2) The quantity of calcium base grease used to lubricate the bearing should be 1/3/1/2 of the bearing body space and should be replaced regularly.

(3) When the packing is worn, the packing gland can be properly pressed. If it is worn too much, it should be replaced. Generally, the mechanical seal will not be worn and has a service life of up to one year.

(4) Regularly check the elastic coupling components and pay attention to the temperature rise of motor bearing.

(5) In case of noise or other abnormal sounds during operation, stop the machine immediately, check the causes and eliminate them.

(6) It is not allowed to increase the speed of the water pump arbitrarily, but it can be used at a lower speed.

Model meaning

technical parameter

Structural features

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