Description :

The 4SPM2 4" Stainless Steel Impeller Overload Protection High Efficiency Borehole Submersible Pump is a reliable and efficient water pumping solution designed for borehole applications. This pump is equipped with a stainless steel impeller, overload protection, and high efficiency features.

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 stainless steel impeller is a key feature of this pump, providing durability and resistance to corrosion. It is designed to efficiently move water, ensuring optimal performance and longevity of the pump.
2、The overload protection feature is designed to safeguard the pump from damage caused by excessive load or electrical issues. It automatically shuts off the pump when it detects an overload, preventing motor burnout and extending the lifespan of the pump.
3、The high efficiency design of the pump ensures that it operates with minimal energy consumption. This not only reduces electricity costs but also makes the pump environmentally friendly.
4、The 4SPM2 pump is specifically designed for borehole applications, allowing it to be fully submerged in water. This submersible design maximizes efficiency and minimizes noise, making it suitable for various settings including residential, commercial, or agricultural.

Operating Conditions:

Maximum fluid temperature up to +50℃
Maximum sand content : 0.25%
Minimum well diameter : 4"

Motor and Pump :

Electric motor with rewind capability
Single-phase voltage: 220-240V/50Hz or Three-phase voltage: 380-415V/50Hz3. Equipped with a starter control box or digital automatic control box
Pumps designed with stress considerations on the casing
Compliant with NEMA dimensional standards for consistency
Curve tolerances adhere to ISO 9906 guidelines for accuracy.

Options on request :

Special mechanical seal
Other voltages or frequency 60Hz
Single phase motor with built-in capacitor

Warranty : 2 years

(according to our general sales conditions)

CE Certificate :

Components and Materials:

Materials Table
NO.	Part	Material
1	Pump external casing	AISI 304 SS
2	Delivery casing	AISI 304 SS
3	Suction lantern	AISI 304 SS
4	Diffuser	AISI 304 SS
5	Impeller	AISI 304 SS
6	Pump shaft	AISI 304 SS
7	Shaft coupling	AISI 304 SS
8	Wear ring	Rubber
9	Motor external casing	AISI 304 SS
10	Oil chamber	Cast-Cu ASTM C85500 Cast-iron ASTM NO.30 AISI 304 SS
11	Bottom support	AISI 304 SS
12	Mechanical Seal	Special seal for deep well (Graphite-Ceramic)
13	Seal lubricant oil	Oil for food machinery and pharmaceutic use
14	Motor shaft	AISI 304 SS-ASTM 5140

Performance Curves :

Performance Data ( 50Hz ) :

Model		Power		Delivery n≈2850r/min
1~220V-240V	3~380V-415V	KW	HP	Q(m³/h)	0	0.3	0.6	0.9	1.2	1.5	1.8	2.1	2.4	2.7	3.0
1~220V-240V	3~380V-415V	KW	HP	Q(l/min)	0	5	10	15	20	25	30	35	40	45	50
4SPM2/6	-	0.37	0.5	H(m)	36	35	34	32	31	28	25	21	16	11	6
4SPM2/9	-	0.37	0.5		54	53	51	48	46	42	37	31	25	17	9
4SPM2/13	4SP2/13	0.55	0.75		78	76	73	70	66	61	54	45	35	24	13
4SPM2/18	4SP2/18	0.75	1		108	105	102	97	92	85	75	63	49	34	18
4SPM2/23	4SP2/23	1.1	1.5		138	134	130	124	117	108	96	80	63	43	23
4SPM2/28	-	1.3	1.75		168	164	158	151	143	132	116	97	76	53	28
4SPM2/33	4SP2/33	1.5	2		198	193	186	178	168	155	137	115	90	62	32
4SPM2/40	-	1.8	2.5		240	234	226	215	204	188	166	139	109	75	39
4SPM2/48	4SP2/48	2.2	3		288	281	271	258	244	226	199	167	131	90	47
4SPM2/55	4SP2/55	2.6	3.5		330	322	311	296	280	259	228	191	150	103	54
4SPM2/65	4SP2/65	3	4		390	380	367	350	331	306	270	226	177	122	64

Performance Data ( 60Hz ) :

Model		Power		Delivery n≈3450r/min
1~110V/220V	3~220V/380V	KW	HP	Q(m³/h)	0	0.3	0.6	0.9	1.2	1.5	1.8	2.1	2.4	2.7	3.0	3.3	3.6
1~110V/220V	3~220V/380V	KW	HP	Q(l/min)	0	5	10	15	20	25	30	35	40	45	50	55	60
4SPM2/6	4SP2/6	0.37	0.5	H(m)	52	52	51	49	47	45	42	38	35	30	25	18	12
4SPM2/8	4SP2/8	0.55	0.75		70	69	68	66	63	60	56	52	47	42	34	26	17
4SPM2/11	4SP2/11	0.75	1		96	95	93	90	87	83	77	71	65	57	47	35	24
4SPM2/14	4SP2/14	0.92	1.25		122	121	119	115	111	106	98	91	83	73	60	45	30
4SPM2/16	4SP2/16	1.1	1.5		140	138	136	131	127	121	112	104	95	83	69	51	34
4SPM2/19	4SP2/19	1.3	1.75		166	164	161	156	150	143	133	123	112	99	81	61	41
4SPM2/22	4SP2/22	1.5	2		193	90	187	180	174	166	154	143	130	114	94	70	47
4SPM2/25	4SP2/25	1.8	2.5		219	216	212	205	198	189	175	162	148	130	107	80	54
4SPM2/28	4SP2/28	2.2	3		245	242	238	230	222	211	196	182	166	146	120	90	60
-	4SP2/32	2.6	3.5		280	276	272	262	253	241	224	208	189	166	137	102	69
-	4SP2/36	3	4		315	311	306	295	285	271	252	234	213	187	154	115	78
-	4SP2/40	3.7	5		350	345	340	328	316	301	280	260	236	208	171	128	86
-	4SP2/43	4	5.5		376	371	366	352	340	324	301	280	254	223	184	137	93