Description :

The 8SP77 8" Large Water Outlet Mass Discharge Three-phase Borehole Submersible Pump is a high-capacity pump designed for extracting water from deep boreholes. This pump features a large water outlet and a three-phase motor for efficient and reliable operation.the 8SP77 8" Large Water Outlet Mass Discharge Three-phase Borehole Submersible Pump is a high-capacity pump designed for extracting water from deep boreholes. With its large water outlet and three-phase motor, it provides efficient and reliable water extraction for various applications.

Applications :

Provides water supply from wells or reservoirs for various use cases.

Caters to domestic, civil, and industrial applications with stable performance.

Supports garden maintenance and agricultural irrigation operations efficiently.

Key Features :

1、The 8SP77 pump is specifically designed for boreholes with an 8-inch diameter. It is capable of handling large volumes of water with its mass discharge capability, making it suitable for applications that require high water flow rates.
2、The three-phase motor of the pump ensures efficient and reliable performance. Three-phase motors are known for their higher power output and better efficiency compared to single-phase motors. This allows the pump to deliver consistent and powerful water extraction from deep underground sources.
3、The submersible design of the pump allows it to be fully submerged in the water, eliminating the need for priming and providing quiet operation. It is built to withstand the harsh conditions of boreholes, with durable construction materials and corrosion-resistant components.
4、The 8SP77 pump is commonly used in agricultural, industrial, and commercial applications where large volumes of water need to be extracted from deep boreholes.

Operating Conditions :

Maximum fluid temperature up to +50℃
Maximum sand content : 0.25%
Minimum well diameter : 8"

Motor and Pump :

Rewindable motor

Three-phase:380-415V/50Hz

①Direct start (1 cable)

②Star-delta start (2 cables)

Equip with start control box or digital auto-control box

NEMA dimension standards

Curve tolerance according to ISO 9906

Options on request :

Special mechanical seal
Other voltages or frequency 60Hz

Warranty : 2 years

(according to our general sales conditions)

CE Cerificate :

Components and Material :

Components	Material
Delivery casing	①AISI 304 SS ②AISI 316 SS
Suction lantern	①AISI 304 SS ②AISI 316 SS
Diffuser	①AISI 304 SS ②AISI 316 SS
Shaft coupling	①AISI 304 SS ②AISI 316 SS
Impeller	①AISI 304 SS ②AISI 316 SS
Shaft	①AISI 304 SS ②AISI 316 SS
Wear ring	Rubber
Motor external casing	AISI 304 SS
Oil chamber	Cast-iron ASTM NO.30
Bottom support	Cast-iron ASTM NO.30
Seal	NBR Graphite-SIC/TC
Shaft	AISI 304 SS-ASTM 5140

Performance Curves :

50Hz

60Hz

Technical Data (50Hz) :

MODEL	MOTOR		DELIVERY n≈2850r/min
3~ 380-415V	KW	HP	Q（m³/h） Q（l/min）	0	12	24	36	48	60	72	84	96
3~ 380-415V	KW	HP	Q（m³/h） Q（l/min）	0	200	400	600	800	1000	1200	1400	1600
BSP77/2	7.5	10	H(m）	40	40	39	36	33	30	26	22	17
8SP77/3	11	15		60	60	58	54	49	44	40	33	25
85P77/4	15	20		80	80	78	72	65	59	53	44	34
8SP77/5	18.5	25		101	100	97	90	81	74	66	55	42
BSP77/6	22	30		121	120	117	108	98	89	79	67	50
8SP77/7	26	35		141	140	136	126	114	104	93	78	59
85P77/8	30	40		161	160	156	144	130	118	106	89	67
8SP77/9	37	50		181	180	175	162	147	133	119	100	76
8SP77/10	37	50		20	201	195	180	163	148	133	111	84
8SP77/12	45	60		241	241	233	216	196	178	159	133	101
BSP77/14	55	75		281	281	272	252	228	207	186	155	118
8SP77/16	63	85		322	321	311	288	261	237	212	178	134
BSP77/18	63	85		362	361	350	324	293	266	239	200	151
8SP77/20	75	100		402	401	389	360	326	296	265	222	168
85P77/22	75	100		442	441	428	396	359	326	291	244	185

Technical Data (60Hz) :

MODEL	MOTOR		DELIVERY n≈3450r/min
3~ 380-415V	KW	HP	Q（m³/h） Q（l/min）	0	12	24	36	48	60	72	84	96	108	120
3~ 380-415V	KW	HP	Q（m³/h） Q（l/min）	0	200	400	600	800	1000	1200	1400	1600	1800	2000
8SP77/1	5.5	7.5	H(m）	29	29	28	27	25	23	21	19	17	14	10
8SP77/2	11	15		58	57	56	53	49	46	42	38	34	28	21
8SP77/3	18.5	25		87	86	84	80	74	69	63	58	51	42	31
8SP77/4	22	30		116	115	113	107	99	91	84	77	68	56	42
8SP77/5	26	35		145	144	141	133	124	114	105	96	85	70	52
8SP77/6	37	50		174	172	169	160	148	137	126	115	102	84	63
8SP77/7	37	50		203	201	197	187	173	160	147	134	119	98	73
8SP77/8	45	60		232	230	225	213	198	183	168	154	136	112	84
8SP77/9	55	75		261	259	253	240	223	206	189	173	153	126	94
8SP77/10	55	75		290	287	281	267	247	229	210	192	170	140	105
8SP77/11	63	85		319	316	309	293	272	252	231	211	187	154	115
8SP77/12	75	100		348	345	338	320	297	274	252	230	204	168	126
8SP77/13	75	100		377	374	366	347	322	297	273	250	221	182	136
8SP77/14	92	125		406	402	394	373	346	320	294	269	238	196	147
8SP77/15	92	125		435	431	422	400	371	343	315	288	255	210	157