WFB sealless automatic self priming pump with electric motor

WFB leakage free self priming pump design

WFB industrial sealless pump casing and motor

WFB Series Sealless Automatic Self Priming Pumps

Model NO. WFB Series Sealless Automatic Self Priming Pumps

Pump material: Carbon steel, Stainless steel, Duplex steel, PP

Inlet & Outlet Size: DN16 - DN600

Flow Range: 0.75 - 4280 m³/h

Head Range: 6 - 202 m

Motor Power: 0.75 - 520 kW

Suction Lift：2.5-6.0m

Speed: 1450 r/min, 2900 r/min

Voltage: 220V / 380V / 415V / 440V / 460V

What is WFB Series Sealless Automatic Self-Priming Pump？

The WFB Series is a heavy-duty automatic water pump engineered for zero-leakage fluid transfer. Designed as a high-efficiency self priming centrifugal pump, it reliably handles liquids with solid particles, oily wastewater, and low-foaming fluids. As an advanced industrial choice among self priming pumps, it achieves true"one-time priming for long-term self-priming"without requiring complex suction foot valves.

Depending on the handled media, this industrial automatic water pump can be manufactured from Stainless Steel, Reinforced Polypropylene (FRPP), Carbon Steel, or Cast Iron. It is widely applied across power plants, metallurgy, petrochemicals, environmental protection, civil construction, and wastewater treatment lines.

Key Features & Working Principles

Hydrodynamic Sealless Design: Adopting an advanced hydrodynamic seal, this automatic water pump eliminates traditional packing and mechanical seal wear. It prevents running, dripping, and leaking, serving as an ideal replacement for vertical submerged pumps.
Friction-Free Long Service Life: Zero friction and zero seal wear during continuous operation give this self priming centrifugal pump a service life significantly superior to standard submersible pumps.
Vacuum-Assist Air Evacuation: Functioning as high-performance self priming pumps, these units utilize air-extraction principles to rapidly evacuate air from the suction pipe upon startup, offering a compact footprint and simple installation.
Siphon Elimination & Automatic Priming: Installing an optional air-control solenoid valve in the inlet line automatically breaks liquid siphoning after shutdown, ensuring this self priming centrifugal pump maintains long-term automatic self-priming performance.
Versatile Fluid Handling: Built for heavy industrial service, these self priming pumps deliver dependable operation in harsh wastewater, chemical effluent, and civil drainage systems.

Model Meaning

Sealless Automatic Self Priming Pump WFB Series Model Identification Chart | JPZX

Connection Code	Material Code	Model	Speed (r/min)	Flow Rate (m³/h)	Head (m)	Power (kW)	Allowable Suction Lift (m)	Suction Dia. (mm)	Discharge Dia. (mm)	Unit Weight (kg)
1-5	G, PP, BXG	16WFB-A	2900	0.75 / 1.1 / 1.5	8 / 6.5 / 5.5	0.75	2.5	16	10	75
1-5	G, PP, BXG	25WFB-A	2900	2.5 / 3.6 / 5	27 / 25 / 23	3	3.5	25	20	90
1-5	G, PP, BXG	25WFB-A	2900	2.5 / 3.6 / 5	22 / 20 / 18	2.2	3.5	25	20	90
1-5	G, PP, BXG	32WFB-A	2900	4.5 / 6.5 / 9	13 / 10.5 / 8	1.5	3	32	25	99
1-5	G, PP, BXG	40WFB-A	2900	6.5 / 8.5 / 10	25 / 23 / 21	4	5	40	32	140
1-5	G, PP, BXG	40WFB-B	2900	5 / 6 / 8	23 / 18 / 17	3	4	40	32	114
1-5	G, PP, BXG	40WFB-A1	2900	13.5	18	4	5	40	32	140
1-5	G, PP, BXG	40WFB-A2	2900	5 / 8 / 10	15 / 13 / 11	2.2	5	40	32	110
1-5	G, PP, BXG	40WFB-A3	2900	14	8	2.2	5	40	32	110
1-5	G, PP, BXG	40WFB-A0	1450	13.5	18	4	5	40	32	140
1-5	G, BXG	40WFB-A1-2	2900	10 / 12 / 15	50 / 48 / 42	7.5	5	40	32	152
1-5	G, PP, BXG	50WFB-A1	2900	10.5	20.5	3	6	50	40	170
1-5	G, PP, BXG	50WFB-A	2900	7.5 / 12.5 / 15	28 / 26 / 24.5	5.5	6	50	40	206
1-5	G, PP, BXG	50WFB-A0	1450	5 / 6.3 / 7.5	11 / 10 / 9	1.5	6	50	40	150
1-5	G, PP, BXG	50WFB-A01	1450	10	6	1.5	6	50	40	150
1-5	G, BXG	50WFB-B2	2900	20 / 12.5 / 22	29 / 28 / 10	7.5	6	50	40	185
1-5	G, PP, BXG	50WFB-B3	2900	5 / 6.5	15 / 14	2.2	6	50	40	125
1-5	G, PP, BXG	50WFB-C0	1450	5 / 6 / 8	19 / 18 / 17	3	6	50	40	170
1-5	G, PP, BXG	50WFB-E2	2900	3.5 / 6.5 / 7.5	26 / 25 / 24	3	6	50	40	170
1-4	G, BXG	50WFB-B-2	2900	8.5 / 10 / 11 / 15	42.5 / 40 / 38 / 35	7.5	6	50	40	250
1-4	G, PP, BXG	50WFB-B1-2	2900	7 / 12 / 15	33 / 31 / 29	5.5	6	50	40	245
1-4	G, BXG	50WFB-C-2	2900	8.5 / 12 / 15	58 / 56 / 54	11	6	50	40	280
1-4	G, BXG	50WFB-C1-2	2900	11 / 12	46 / 40	7.5	6	50	40	255
1-4	G, BXG	50WFB-E-2	2900	7.5 / 12.5 / 15	82 / 80 / 75	18.5	6	50	40	305
1-5	G, PP, BXG	65WFB-A	2900	15 / 20 / 25	27 / 26 / 24	7.5	6	65	50	280
1-5	G, PP, BXG	65WFB-A1	2900	20	20	5.5	6	65	50	245
1-5	G, PP, BXG	65WFB-A0	1450	7 / 12 / 15	12 / 11 / 9	3	6	65	50	230
1-5	G, PP, BXG	65WFB-B1	2900	20	26	7.5	6	65	50	265
1-5	G, PP, BXG	65WFB-B0	1450	10 / 12 / 15	16 / 14 / 12	4	6	65	50	245
1-5	G, PP, BXG	65WFB-C2	2900	7.5 / 12.5 / 15	19 / 18 / 17	4	6	65	50	240
1-5	G, PP, BXG	65WFB-E2	2900	7.5 / 12.5 / 15	27.5 / 26 / 24.5	5.5	6	65	50	275
1-5	G, BXG	65WFB-F0	2900	20 / 8 / 15	28 / 35 / 30	7.5	6	65	50	265
1-4	G, BXG	65WFB-F3	2900	7 / 9 / 12	34 / 30 / 26	5.5	6	65	50	380
1-4	G, BXG	65WFB-C-2	2900	15 / 25 / 30	58 / 56 / 52	15	6	65	50	350
1-4	G, BXG	65WFB-C1-2	2900	22	45	15	6	65	50	350
1-4	G, BXG	65WFB-D-2	2900	15 / 25 / 30	41 / 38 / 34	11	6	65	50	215
1-4	G, BXG	65WFB-E-2	2900	15 / 25 / 30	82 / 80 / 78	22	6	65	50	580
1-4	G, BXG	65WFB-E1-2	2900	21 / 28	64 / 55	15	6	65	50	320
1-4	G, BXG	65WFB-F2-2	2900	7.5 / 12.5 / 15	39 / 37.5 / 36	7.5	6	65	50	305
1-4	G, BXG	65WFB-F-2	2900	15 / 25 / 30	127 / 125 / 123	37	6	65	50	650
1-4	G, BXG	65WFB-F1-2	2900	18 / 21.5 / 23.5	108 / 95 / 85	30	6	65	50	720
2-4	G, BXG	80WFB-A	2900	30 / 50 / 60 / 70	28 / 26 / 24 / 20	11	6	80	65	315
2-4	G, PP, BXG	80WFB-AD	2900	15 / 25 / 30 / 38	12.5 / 11 / 10.5 / 9	4	6	80	65	380
2-4	G, PP, BXG	80WFB-BD	1450	15 / 25 / 30 / 35	15 / 14 / 13 / 11	5.5	6	80	65	520
2-4	G, PP, BXG	80WFB-C2	2900	15 / 25 / 30	19 / 18 / 17	7.5	6	80	65	345
2-4	G, PP, BXG	80WFB-CD	1450	21 / 25	14 / 12	5.5	6	80	65	290
2-4	G, BXG	80WFB-E2	2900	15 / 25 / 30	27 / 26 / 24	11	6	80	65	285
1-5	G, BXG	80WFB-CD1	2900	30 / 22 / 18	15 / 18 / 20	5.5	6	80	65	263
2-4	G, PP, BXG	80WFB-E3	2900	20 / 22	22 / 18	5.5	6	80	65	257
2-4	G, BXG	80WFB-F2	2900	15 / 25 / 30	38 / 36 / 35	11	6	80	65	289
2-4	G, BXG	80WFB-F3	2900	21 / 23 / 26	34 / 30 / 26	11	6	80	65	282
2-4	G, BXG	80WFB-B-2	2900	40 / 50 / 60 / 65	40 / 38 / 35 / 25	15	6	80	65	345
2-4	G, BXG	80WFB-C-2	2900	30 / 50 / 60	59 / 55 / 52	22	6	80	65	560
2-4	G, BXG	80WFB-C1-2	2900	45 / 40	38 / 46	15	6	80	65	355
2-4	G, BXG	80WFB-E-2	2900	30 / 50 / 60	84 / 80 / 76	37	6	80	65	490
2-4	G, BXG	80WFB-E1-2	2900	30 / 40	60 / 50	18.5	6	80	65	465
2-4	G, BXG	80WFB-F-2	2900	30 / 50 / 60	128 / 120 / 110	55	6	80	65	730
2-4	G, BXG	80WFB-F1-2	2900	26 / 30 / 40	103 / 95 / 80	45	6	80	65	586
2-4	G, BXG	80WFB-E-4	2900	36 / 30 / 21	198 / 200 / 202	90	6	80	65	1358
2-4	G, PP, BXG	100WFB-A	2900	60 / 100 / 110 / 120	30 / 26 / 22 / 20	18.5	6	100	80	560
2-4	G, PP, BXG	100WFB-A	1450	60 / 100 / 110 / 120	30 / 26 / 22 / 20	18.5	6	100	80	665
2-4	G, PP, BXG	100WFB-AD	1450	30 / 40 / 50 / 60	12 / 11 / 10 / 9	7.5	6	100	80	387
2-4	G, BXG	100WFB-BD	1450	30 / 40 / 50 / 68	15 / 14 / 13 / 11	11	6	100	80	487
2-4	G, BXG	100WFB-C2	2900	40 / 50 / 60	20 / 19 / 18	11	6	100	80	490
2-4	G, BXG	100WFB-C3	2900	40 / 45	16 / 15	7.5	6	100	80	468
2-4	G, BXG	100WFB-C4	2900	70 / 100 / 120	39 / 37 / 35	30	6	100	80	546
2-4	G, BXG	100WFB-E2	2900	30 / 50 / 55	26 / 25 / 24	11	6	100	80	521
2-4	G, PP, BXG	100WFB-E3	2900	58 / 62	22 / 18	11	6	100	80	526
2-4	G, PP, BXG	100WFB-F3	2900	40 / 43 / 46	33 / 29 / 26	11	6	100	80	528
2-4	G, BXG	100WFB-B-2	2900	60 / 80 / 100 / 120	40 / 36 / 32 / 28	22	6	100	80	489
2-4	G, BXG	100WFB-C-2	2900	45 / 80 / 100	55 / 48 / 45	30	6	100	80	680
2-4	G, BXG	100WFB-C1-2	2900	75 / 85	40 / 35	22	6	100	80	545
2-4	G, BXG	100WFB-E-2	2900	60 / 80 / 100	87 / 80 / 75	55	6	100	80	870
2-4	G, BXG	100WFB-E1-2	2900	80 / 100 / 120	60 / 57.5 / 55	45	6	100	80	786
2-4	G, BXG	100WFB-F-2	2900	60 / 80 / 100	133 / 125 / 120	90	6	100	80	1526
2-4	G, BXG	100WFB-F1-2	2900	80 / 90 / 100	108 / 90 / 80	75	6	100	80	1325
2-4	G, BXG	100WFB-F2-2	2900	30 / 50 / 60	40 / 38 / 36	15	6	100	80	534
2-4	G, BXG	125WFB-A	2900	100 / 150 / 180	55 / 50 / 45	55	6	125	100	875
2-4	G, PP, BXG	125WFB-A1	2900	170 / 185	40 / 30	45	6	125	100	852
2-4	G, PP, BXG	125WFB-A2	1450	70 / 80 / 100	20 / 19 / 17	15	6	125	100	638
2-4	G, PP, BXG	125WFB-AD	1450	105 / 110	16 / 15	15	6	125	100	627
2-4	G, PP, BXG	125WFB-B2	2900	80 / 100 / 120	26 / 25 / 24	18.5	6	125	100	582
2-4	G, PP, BXG	125WFB-B3	2900	85 / 90	22 / 20	15	6	125	100	634
2-4	G, BXG	125WFB-C2	2900	80 / 100 / 120	40 / 38 / 36.5	30	6	125	100	667
2-4	G, PP, BXG	125WFB-C3	2900	92 / 85 / 80	23 / 26 / 29	18.5	6	125	100	589
2-4	G, BXG	125WFB-E2	2900	85	36	22	6	125	100	-
2-4	G.BXG	125WFB-B-2	2900	120 / 180 / 220	86 / 80 / 72	110	6	125	100	1546
2-4	G.PP.BXG	125WFB-B1-2	2900	150 / 170	65 / 50	75	6	125	100	1425
2-4	G.BXG	125WFB-C-3	2900	160 / 180 / 200	130 / 120 / 110	132	6	125	100	1656
2-4	G.BXG	125WFB-C1-2	2900	180 / 190 / 208	108 / 93 / 80	110	6	125	100	1514
2-4	G.BXG	125WFB-E-2	2900	70 / 90 / 110	52 / 50 / 48	37	6	125	100	723
2-4	G.BXG	125WFB-E1-2	2900	90 / 95	45 / 40	30	6	125	100	695
2-4	G.BXG	150WFB-A	1450	80 / 120 / 200	28 / 26 / 19	30	6	150	125	683
1-4	G.BXG	150WFB-BD2	1450	165 / 150 / 135	24 / 30 / 32	30	6	150	125	821
2-4	G.BXG	150WFB-AD	1450	160	20	22	6	150	125	694
2-4	G.BXG	150WFB-AD2	1450	273 / 240 / 216	16 / 23.5 / 22	45	6	150	125	861
2-4	G.BXG	150WFB-BC	2900	156 / 180 / 225	40 / 36 / 30	45	6	150	125	874
2-4	G.BXG	150WFB-BD	1450	200 / 255	28 / 21	45	6	150	125	965
1-4	G.BXG	150WFB-AD1	1450	200 / 185 / 160	18 / 21 / 23	30	6	150	125	652
1-4	G.BXG	150WFB-B2	2900	120 / 100 / 80	23 / 28 / 32	22	6	150	125	586
2-4	G.BXG	150WFB-B1	2900	160 / 180 / 195	34 / 29 / 26	37	6	150	125	748
1-4	G.BXG	150WFB-B-2	2900	220 / 200 / 180	65 / 80 / 85	110	6	150	125	1726
1-4	G.BXG	150WFB-BG-2	2900	200 / 180 / 160	110 / 125 / 130	132	6	150	125	1829
2-4	G.BXG	150WFB-BD1-2	1450	120 / 200 / 240	55 / 50 / 45	75	6	150	125	1435
2-4	G.BXG	150WFB-C-2	2900	180 / 190	45 / 38	55	6	150	125	1321
2-4	G.BXG	150WFB-C1-2	2900	165	36	45	6	150	125	827
2-4	G.BXG	200WFB-AD	1450	250 / 330 / 350	26.5 / 25 / 23.5	55	5	200	150	934
2-4	G.BXG	200WFB-AD1	1450	300	22	45	5	200	150	809
2-4	G.BXG	200WFB-AD2	1450	330	19	45	5	200	150	816
2-4	G.BXG	200WFB-BD1	1450	250	28.5	45	5	200	150	968
2-4	G.BXG	200WFB-BD2	1450	310 / 380 / 450	25 / 18 / 13	55	5	200	150	994
2-4	G.BXG	200WFB-EF	1450	200	80	132	5	200	150	1844
2-4	G.BXG	200WFB-BD3	1450	240 / 300 / 350	42 / 37 / 33.5	75	5	200	150	1455
2-4	G.BXG	200WFB-CD-2	1450	350 / 380 / 420	55 / 50 / 45	110	5	200	150	1689
2-4	G.BXG	200WFB-CD1-2	1450	360	45	110	5	200	150	1583
2-4	G.BXG.	250WFB-AD	1450	290 / 330 / 360	26.5 / 25 / 23.5	55	5	250	200
2-4	G.BXG	250WFB-AD1	1450	400 / 430	13 / 8	45	5	250	200	954
2-4	G.BXG	250WFB-AD2	1450	340 / 360 / 400	33 / 31 / 29	75	5	250	200	1267
2-4	G.BXG	250WFB-AD3	1450	500 / 600 / 720	28 / 22 / 10	90	5	250	200	1479
2-4	G.BXG	250WFB-BD1	1450	400 / 620 / 700	32.5 / 27 / 21	110	5	250	200	1321
2-4	G.BXG	250WFB-BD-2	1450	350 / 380 / 400	42 / 37 / 34	90	5	250	200	1550
2-4	G.BXG	250WFB-BD1-2	1450	300 / 350 / 380	50 / 47 / 45	110	5	250	200	1650
2-4	G.BXG	250WFB-BD2-2	1450	200 / 260 / 290	55 / 52 / 50	90	5	250	200	1034
2-4	G.BXG	300WFB-AD	1450	500 / 550 / 600	26.5 / 25 / 23.5	90	5	300	250	1360
2-4	G.BXG	300WFB-AD2	1450	800 / 850 / 1000	30 / 25 / 18	110	5	300	250	2050
2-4	G.BXG	300WFB-BD1	1450	600 / 750 / 850	57 / 45 / 40	185	5	300	250	2400
2-4	G.BXG	300WFB-CD	1450	878 / 860	35 / 42.5	200	5	300	250	2480
2-4	G.BXG	300WFB-CD1	1450	700 / 780 / 880	57.5 / 52 / 45	220	5	300	250	2510
2-4	G.BXG	300WFB-AD1-2	1450	370 / 390 / 400 / 430	42 / 38 / 35 / 31	90	5	300	250	1889
2-4	G.BXG	300WFB-AD3-2	1450	350 / 400 / 450	47 / 45 / 42	110	5	300	250	1927
2-4	G.BXG	300WFB-BD-2	1450	300 / 320 / 345	57.5 / 55 / 52.5	110	5	300	250	1956
2-4	G.BXG	300WFB-BD1-2	1450	628 / 780 / 900	55 / 47.5 / 38	220	5	300	250	2316
2-4	G.BXG	300WFB-BD2-2	1450	740 / 740 / 890	49 / 48 / 38	185	5	300	250	2058
2-4	G.BXG	350WFB-AD	1450	550 / 600 / 700	26.5 / 25 / 23.5	90	5	350	300	2500
2-4	G.BXG	350WFB-AD1	1450	540 / 630 / 820	35 / 31 / 23	145	5	350	300	2280
2-4	G.BXG	350WFB-AD2	1450	450 / 500 / 550	42.5 / 40 / 37.5	132	5	350	300	2610
2-4	G.BXG	350WFB-AD3	1450	500 / 531 / 590	50 / 47.5 / 45	145	5	350	300	2286
2-4	G.BXG	350WFB-BD	1450	306 / 356 / 400	57.5 / 55 / 52	110	5	350	300	2610
2-4	G.BXG	350WFB-BD1	1450	848 / 950 / 1200	50 / 48 / 38	250	5	350	300	2265
2-4	G.BXG	350WFB-BD2	1450	886 / 980 / 1180	57.5 / 52.5 / 45	280	5	350	300	3080
2-4	G.BXG	350WFB-BD3	1450	860 / 1050 / 1100	42 / 35 / 32	200	5	350	300	2536
2-4	G.BXG	350WFB-CD	1450	1200 / 1320	35 / 32	220	5	350	300	2688
2-4	G.BXG	350WFB-CD1	1450	1156 / 1280	40 / 35	250	5	350	300	2886
2-4	G.BXG	350WFB-CD2	1450	1128 / 1250	45 / 38	280	5	350	300	3080
2-4	G.BXG	350WFB-CD3	1450	1000 / 1200	57.5 / 50	315	5	350	300	3285
2-4	G.BXG	350WFB-ED	1450	900 / 1000	30 / 25	160	5	350	300	2300
2-4	G.BXG	400WFB-FD1	1450	1096 / 1140 / 1320	35 / 30 / 25	200	5	400	350	2660
2-4	G.BXG	400WFB-AD	730	1450 / 1520	18 / 16	160	5	400	350	2890
2-4	G.BXG	400WFB-AD1	730	1450 / 1600	20 / 10	90	5	400	350	3150
2-4	G.BXG	400WFB-AD2	730	1600	12	110	5	400	350	3000
2-4	G.BXG	400WFB-AD3	730	2050	15	185	5	400	350	3750
2-4	G.BXG	400WFB-ED	730	1700 / 2000 / 2500	20 / 18 / 15	185	5	400	350	2500
2-4	G.BXG	400WFB-BD1	730	1600 / 2000 / 2226	22.5 / 20 / 18	200	5	400	350	2650
2-4	G.BXG	400WFB-BD2	730	1800 / 2000 / 2360	22 / 20 / 18	250	5	400	350	3090
2-4	G.BXG	400WFB-BD3	980	1700 / 2200 / 2500	25 / 22 / 20	280	5	400	350	3850
2-4	G.BXG	400WFB-CD1	730	1880	12	132	5	400	350	2750
2-4	G.BXG	400WFB-CD2	730	2280	12	160	5	400	350	2860
2-4	G.BXG	400WFB-CD3	730	1905	18	200	5	400	350	2850
2-4	G.BXG	450WFB-AD	1450	1650 / 2880	35 / 20	315	5	450	400	3250
2-4	G.BXG	450WFB-BD1	730	2825	20	315	5	450	400	2968
2-4	G.BXG	450WFB-AD1	730	2890	15	250	5	450	400	2650
2-4	G.BXG	450WFB-BD	980	2825	25	400	5	450	400	2880
2-4	G.BXG	600WFB-AD	730	3400	15	280	5	600	500	3080
2-4	G.BXG	600WFB-BD	730	4280	20	480	5	600	500	3080
2-4	G.BXG	600WFB-CD	730	4020	25	520	5	600	500	2850

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