4SDm Stainless Steel Deep Well Submersible Pump

4SDm Stainless Steel Deep Well Submersible Pump

High-performance 4-inch stainless-steel submersible pump covering a broad range of capacities, motor powers and delivery heads. Designed for demanding borehole installations, it provides reliable water supply for agriculture, irrigation, buildings and industrial systems while offering flexible model selection for different project requirements.

Applications

For water supply from wells or reservoirs; for domestic, civil and industrial applications; for garden use and irrigation.

Operating Conditions

Maximum fluid temperature: +40°C; maximum sand content: 2%; maximum immersion: 80 m. Minimum well diameter: 4 in.

Motor / System Information

Rewindable motor; single phase 150–240V/50Hz; three phase 380–415V/50Hz; NEMA dimension standards; insulation class B; protection grade IP68.

Overview

Overview

Product Information

Product Name	4SDm Stainless Steel Deep Well Submersible Pump
Series	4SD2 / 4SD3 / 4SD4 / 4SD6 / 4SD8 / 4SD10 / 4SD12 / 4SD16
Well diameter	4 in
Voltage	150–240V single phase; 380–415V three phase
Power	0.25–7.50 kW / 0.33–10.00 HP
Capacity range	0.3–21 m³/h
Maximum head	Up to 468 m
Outlet	G1¼–G2 in
Model Options	4SD2, 4SD3, 4SD4, 4SD6, 4SD8, 4SD10, 4SD12 and 4SD16, with stage variants listed in catalog pages 04–07.

MODEL PARAMETERS at 50Hz
Outlet:G1¼"~G2"

MODEL		P₂		DELIVERY n≈2850 1/min
1~ 220V-240V	3~ 380-415V	kW	HP	Q	m³/h	163	161	159	155	150	143	1832	119	104	87	68	49
1~ 220V-240V	3~ 380-415V	kW	HP	Q	L/min	464	162	179	175	170	461	1450	135	118	96.	77	55
4SDM2/23	4SD2/23	13	1.75	H(m)		163	161	159	155	150	143	1832	119	104	87	68	49
4SDM2/26	4SD2/26	1.5	2			464	162	179	175	170	461	1450	135	118	96.	77	55
_	4SD2/50	3	4			354	351	345	337	327	310	288	259	227	189	148	106
	4SD2/56	3.7	5			397	393	387	378	366	348	322	290	254	211	165	119
~	4SD2/62	4	Ss			439	435	428	418	405	385	357	321	281	234	183	132

MODEL PARAMETERS at 50Hz
Outlet:G1¼"~G2"

MODEL		P₂		DELIVERY n≈2850 1/min
1~ 220V-240V	3~ 380-415V	kW	HP	Q	m³/h	0	0.6	1.2	1.8	2.4	3	3.6	4.2	4.8
1~ 220V-240V	3~ 380-415V	kW	HP	Q	L/min	0	10	20	30	40	50	60	70	80
4SDM3/4	4SD3/4	0.25	0.33	H(m)		30	29	28	26	23	a	a7	12	T
4SDM3/6	4SD3/6	0.37	0.5			45	44	42	39	35	31	25	18	11
4SDM3/8	4SD3/8	0.55	0.75			60	58	55	52	47	41	33	24	14
4SDM3/11	4SD3/11	075°	4			83	80	76	71	65	57	46	33	20
4SDM3/14	4SD3/14	0.92	1.25			106	102	97	91	82	72	58	42	25
4SDM3/16	4SD3/16	14	45			124	146	144	108	94	83	67	48	29
4SDM3/19	4SD3/19	43°	“4:75			143	188	1382	1238	2	98	79	57	34
4SDM3/22	4SD3/22	1.5	2			166	160	153	142	129	114	92	66	40
4SDM3/26	4SD3/26	is	25			196	189	180	168	153	134	109	78	47
4SDM3/30	4SD3/30	22	3			226	218	208	#194	476	455	425	90	54
ASDM3/34	4SD3/34	26	3.5			257	247	2386	220	200	175	142	£168	61
-	4SD3/38	3	4			287	276	264	246	223	196	159	115	69
_	4SD3/43	3.7	5			325	313	298	278	2652	222	180	‘130	78
	4SD3/48	4	5.5			362	349	333	310	282	248	201	145	87
=	4SD3/55	5	7			415	400	381	356	323	284	230	166	99
_	4SD3/62	55	7.5			468	451	430	401	364	320	259	187	«112

Outlet:G1¼"~G2"

MODEL		P₂		DELIVERY n≈2850 1/min
1~ 220V-240V	3~ 380-415V	kW	HP	Q	m³/h	Eo	ool	Ea	Evel		3	300	0421	4s	Eee	6
1~ 220V-240V	3~ 380-415V	kW	HP	Q	L/min	Go	700)			E4A0R		E60	E70			Hoo
4SDM4/6	4SD4/6	0.37	0.5	H(m)		42	41	398	38	36	33	30	25	iS	13	6
4SDM4/8	4SD4/8	0.55	0.75			57	55	53	50	48	44	40	33	26	17	9
4SDM4/10	4SD4/10	0.75	1			T1	G8	66	63.	GO	55	56	42	#82	21	4
4SDM4/12	4SD4/12	0.92	1.25			65	@2	79	76	72	Gr	59	S50	8c.		261/43
4SDM4/14	4SD4/14	4.1	1.5			99	96	92	88	84	78	69	58	45	30	15
4SDM4/16	4SD4/16	1.3.	4:75			14138	109	105	#1014	96	89	79	67	51	34	47
4SDM4/18	4SD4/18	1.5	2			127	123	118	1114	108	100	89	75	58	39	19
4SDM4/22	4SD4/22	18	25			156	150	144	139	132	122	109	92.	74	47	23
4SDM4/26	4SD4/26	2:2	3			184	177	171	164	156	144	129	109	83	56	28
4SDM4/30	4SD4/30	2.6	3.5			212	205	197	189	180	166	149	125	96	64	32
_	4SD4/34	3	4			241	232	223	214	203	189	168	142	109	73	£436
_	4SD4/39	3.7	5			276	266	256	246	233	216	193	163	125	84	42
om	4SD4/44	4	5.5			312	300	289	277	263	244	218	184	141	94	47
_	4SD4/49	5	7			347	334	322	309	293	272	243	205	157	105	52
-	4SD4/54	55	75			382	368	354	341	323	300	267	226	173	#116	57
a	4SD4/62	7.5	10			439	423	407	391	371	344	307	259	199	133	66

Outlet:G1¼"~G2"

MODEL		P₂		DELIVERY n≈2850 1/min
1~ 220V-240V	3~ 380-415V	kW	HP	Q	m³/h	te)	2	2.4	3.6	4.8	6	7.2	8.4
1~ 220V-240V	3~ 380-415V	kW	HP	Q	L/min	0	20	40	60	80	100	120	140
4SDM6/4	4SD6/4	0.37	0.5	H(m)		28	27	26	24	21	lit	13	8
4SDM6/6	4SD6/6	0.55	0.75			42	40	39	36	32	26	20	13
4SDM6/8	4SD6/8	0.75	1			56	54	52	48	42	35	27	17
4SDM6/11	4SD6/11	1.1	1.5			Tare	74	7a	66	58	48	Bf	23
4SDM6/13	4SD6/13		ZS			90	87	84	78	69	57	43	27
4SDM6/15	4SD6/15	1.5	2			104	101	97	90	80	65	50	32
4SDM6/17	4SD6/17	138	2.5			118	114	110	102	90	74		36
4SDM6/20	4SD6/20	2:2	3			139	134	129	120	106	87	67	42
4SDM6/23	4SD6/23	26	3.5			160	154	148	138	122	100	77	49
=	4SD6/26	3	4			181	175	168	156	138	113	86	55
-	4SD6/30	3.7	5			209	201	193	180	159	131	100	63
	4SD6/34	4	5.5			237	228	219	204	180	148	113	72
	4SD6/38	5	7			265	255	245	228	202	166	126	80
	4SD6/42	§.5	7.5			292	282	271	252	223	183	140	89

MODEL PARAMETERS at 50Hz
Outlet:G1¼"~G2"

MODEL		P₂		DELIVERY n≈2850 1/min
1~ 220V-240V	3~ 380-415V	kW	HP	Q	m³/h	0	1.2	2.4	36	48	6	Me.	8.4	9.6	10.8
1~ 220V-240V	3~ 380-415V	kW	HP	Q	L/min	0	20	40	60	80	100	120	140	160	180
4SDM8/5	4SD8/5	0.55	0.75	H(m)		31	29	28	26	24	22	20	AL	13	9
4SDM8/7	4SD8/7	0.75	1			44	41	39	36	34	31	29	24	19	12
4SDM8/8	4SD8/8	0.92	1:25			50	47	44	41	39	36	33	28	21	14
4SDM8/9	4SD8/9	1.1	1.5			56	53	50	47	43	40	“Sf	31	24	16
4SDM8/10	4SD8/10	1.3	1.75			62	59	55	52	48	45	41	35	27	AT
4SDM8/12	4SD8/12	15	2			15	71	66	62	58	54	49	42	32	21
4SDM8/14	4SD8/14	18	25			87	83	78	73	68	63	57	49	38	24
4SDM8/17	4SD8/17	2:2	3			106	100	94	88	82	76	69	59	46	29
4SDM8/20	4SD8/20	26	3.5			125	118	111	104	97	90	82	70	54	35
=	4SD8/23	3	4			143°	136	127	119	11	103	94	80	62	40
=	4SD8/26	3.7	5			162	153	144	1385	126	117	106	£90	70	45
=	4SD8/29	4	5.5			181	(71.	“161	150).		140.130.	118.	101	78	50
-	4SD8/33	5	7			206	195	183	171	160	149	135	115	89	57
=	4SD8/37	65):	5			230	218	«205	192:	179	167	151	729:	99	64
=	4SD8/41	6.8	9			255	242	227	213	198	185	167	143	110	71
=	4SD8/45	75	10			280.	265	249	233	218	.203.		184.157	121	£78

Outlet:G1¼"~G2"

MODEL		P₂		DELIVERY n≈2850 1/min
1~ 220V-240V	3~ 380-415V	kW	HP	Q	m³/h	0	1.8	3.6	5.4	7.2	9	10.8	12.6
1~ 220V-240V	3~ 380-415V	kW	HP	Q	L/min	0	30	60	90	120	150	180	210
4SDM10/4	4SD10/4	0.55	0.75	H(m)		25	24	22	21	19	1%	12	7
4SDM10/5	4SD10/5	0.75	1			31	30	28	26	24	21	16	8
4SDM10/6	4SD10/6	0.92	“1.25			37	35	34	31	29	25	19	10
4SDM10/7	4SD10/7	1.1	1.5			43	41	39	37	34	29	22	11
4SDM10/8	4SD10/8	1.3:	175			49	47	45	42	39	33	25	13
4SDM10/10	4SD10/10	1.5	2			62	59	56	52	48	41	31	16
4SDM10/12	4SD10/12	4.8)	325			74	71	67	63	58	50	37	20
4SDM10/14	4SD10/14	2.2	3			86	83	79	73	68	58	44	23
4SDM10/16	4SD10/16	26	3:5			99	95	90	84	77	66	50	26
=	4SD10/18	3	4			111	106	101	94	87	74	56	29
=	4SD10/20	3.7	5			123	118	112	105	97	83	62	33
=	4SD10/22	4	5.5			136	130	123	115	106	91	68	36
-	4SD10/25	5	7			154	148	140	131	121	103	78	41
=	4SD10/28	5.5	7.5			173	166	157	147	135	116	87	46
=	4SD10/32	6.8	9			197	189	180	168	155	132	100	52
=	4SD10/36	7.5	10			222	213	202	189	174	149	412	59

Outlet:G1¼"~G2"

MODEL		P₂		DELIVERY n≈2850 1/min
1~ 220V-240V	3~ 380-415V	kW	HP	Q	m³/h			ES6n		la	om	Moe!	Hace!		Hee
1~ 220V-240V	3~ 380-415V	kW	HP	Q	L/min	GEO	3010	GO)	Sou)	E1200	ses	Ise!	E210)		F270
4SDM12/4	4SD12/4	0.75	4	H(m)		25	24	23	21	19	17	15	12	9	5
4SDM12/5	4SD12/5	0.92	1.25			32	30	26	26	24		19	456	1	6
4SDM12/6	4SD12/6	1a	as			$6	36	34	S1	20	26	22	49	45	7
4SDM12/7	4SD12/7	13	475			“a		3	SF	83	2	26	2	146	8
4SDM12/8	4SD12/8	isi	@			St	AS	45		38	“St		25)	418	9
4SDM12/10	4SD12/10	18	2.5			6S	G0	66	S82	4	48	SB		St@	#2
4SDM12/12.	4SD1212	22	3			vo.	72	G8	6s	er	Si	(46	Sri	ar	“44
4SDM12/14	4SD12/14	26	3.5			ss	84	7	78	67	€	52	48	31	16
_	4SD12/16	3	4			101	96	90	84	TL	69	60	50	36	19
_	4SD1218	3.7	#5			114.	1068	101	984	#86	‘77	Gf	S56	40	24
_	4SD12/20	4	65			126	120	4148		96	66	V4	G2	44	33
-	4SD12/23	5	7			145	187°	(120	(420	110	68	86	Tt	St	2
-	4SD12/26	55	7.5			164	155	146	486	124	4114	987	680	58	30

MODEL PARAMETERS at 50Hz
Outlet:G1¼"~G2"

MODEL		P₂		DELIVERY n≈2850 1/min
1~ 220V-240V	3~ 380-415V	kW	HP	Q	m³/h	fs)	3	6	9	42	15	18	24
1~ 220V-240V	3~ 380-415V	kW	HP	Q	L/min	(0)	50	100	150	200	250	300	350
4SDM16/3	4SD16/3	0.75	1	H(m)		17	16	16	14	12	11	fe)	6
4SDM16/4	4SD16/4	as	4s			22	22	21	19	17	14	11	8
4SDM16/5	4SD16/5	1a	4275			28	27	26	24	21	18	14	10
4SDM16/6	4SD16/6	1.5	2			33	33	31	28	25	21	17	12
4SDM16/8	4SD16/8	18	25			44	44	A2	38	33	28	23	17
4SDM16/9	4SD16/9	22	3			50	49	47	42	37	32	26	19
4SDM16/11	4SD16/11	26	3.5			61	60	57	52	46	39	31	23
-	4SD16/12	3	4			67	65	62	57	50	42	34	25
=	4SD16/14	87	5			78	76	73	66	58	49	40	29
_	4SD16/16	4	5.5			89	87	83	76	67	56	45	33
=	4SD16/18	5	7			100	98	94	85	75	63	51	37
_	4SD16/20	55	7.5			114	109	104	94	83	70	57	42
-	4SD16/23	6.8	9			128	125	120	109	96	81	65	48
=	4SD16/25	75	46			139	136	130	118	104	88	71	52

Diagram

No.	Part / Description	No.	Part / Description
1	Pump cover	31	Sand proof cap
2	Outlet	32	Skeleton oil seal
3	Check valve core	33	Nut
4	Check valve seat	34	Spring washer
5	Rubber bearing	35	Bolt
6	Screw	36	Grease screw
7	Upper bearing bush	37	"O"Ring
8	Sealing gasket	38	Bearing seat
9	Diffuser	39	Screw
10	Impeller	40	Gasket
11	Diffuser cover	41	"O"Ring
12	Intermediate support	42	Mechanical seal
13	Cable shield	43	Mechanical seal gasket
14	Screw	44	Bearing
15	Holder pipe	45	Rotor
16	Cable cover	46	Bearing
17	Pump pipe	47	Bearing gasket
18	Shaft	48	Bushing
19	Down bushing	49	Stator
20	Plastic sleeve	50	Bearing seat
21	Coupling	51	Motor pipe
22	Screw	52	Oil
23	Strainer	53	Rubber cup
24	Screw	54	End cover
25	Suction support	55	Clamping spring
26	Screw
27	Cable
28	Cable clamp
29	Sand proof sleeve
30	Gasket

Detail / Structure Image

Key Features

Stainless Steel Construction: The pump body and main components are crafted from high-grade stainless steel, offering resistance against corrosion and wear. This durable build is suited for long-term submersion in water, maintaining structural integrity over years of service.
Multistage Impeller Design: The series employs a multistage configuration to generate high water pressure, enabling the lifting of water from deep wells. This design approach maximizes hydraulic efficiency, ensuring effective water delivery from significant depths.
NEMA Standard Motor: Fitted with a motor built to NEMA (National Electrical Manufacturers Association) dimension standards, ensuring compatibility with a wide range of industrial components and facilitating easy integration into existing systems.
IP68 Protection & Class B Insulation: The motor features IP68 ingress protection, making it fully dust-tight and capable of withstanding continuous immersion. Class B insulation ensures reliable electrical performance and thermal durability during operation.
Wide Voltage & Frequency Range: Available in both single-phase (220V-240V) and three-phase (380V-415V) configurations, with options for 50Hz or 60Hz power supplies. This flexibility makes the pump suitable for various regional electrical grids .
Controlled Motor Temperature Rise: The motor is engineered for low temperature rise, a factor that enhances overload capacity and operational safety, contributing to a longer lifespan for the motor windings.

Commercial Value

For procurement professionals, engineering consultants, and business owners, the 4SDm series delivers a compelling return on investment (ROI). The combination of high operational efficiency and durable materials results in lower total cost of ownership (TCO). Reduced energy consumption directly lowers monthly utility bills, while the extended service life of stainless steel components minimizes downtime and replacement costs. Furthermore, the product's versatility and adherence to global standards simplify inventory management and reduce the need for a large stock of different pump models. This reliability and efficiency translate to a predictable and profitable solution for any water management requirement.

FAQ

Q: What type of water is the 4SDm pump designed to handle?
A: The 4SDm pump is specifically engineered for clean water applications. It is suitable for water supply from wells and reservoirs where sand content does not exceed 0.25%. It is not designed for abrasive or corrosive liquids beyond those parameters .

Q: What is the minimum well diameter required to install this pump?
A: The pump is designed to fit a minimum well casing diameter of 102mm (4 inches), as indicated by the '4' in the model name. This ensures proper fit and clearance for adequate cooling and operation .

Q: What certifications does the 4SDm pump hold?
A: The 4SDm pump series holds various international certifications, including ISO9001 for quality management, CE for European compliance, and EMC for electromagnetic compatibility, among others .

Q: How deep can the 4SDm pump be installed?
A: The maximum immersion depth can be up to 100 meters, depending on the specific model and motor configuration. It is crucial to consult the pump's performance curve and technical data for your specific model to determine its optimal operating range.

Q: Are the pump and motor available in different voltage and phase configurations?
A: Yes, the series offers both single-phase (220V-240V) and three-phase (380V-415V) motor options, and can be supplied for both 50Hz and 60Hz mains frequencies .

Applications

Township Municipal Water Supply

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Family Farm & Garden Irrigation

Small self-priming pumps & stainless steel deep well submersible pumps support farm irrigation, garden watering and mountain village domestic water intake.

Industrial Cooling & Circulation

Mini circulation pumps provide stable liquid circulation & cooling for small processing workshops, boiler and solar hot water systems. Auxiliary fans can be matched for workshop air circulation.