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5SD Deep Well


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The SD series stainless steel deep well submersible pump is an integrated groundwater extraction device, with its most notable feature being the combination of the motor and pump into a single unit. Constructed from stainless steel, this pump boasts excellent corrosion resistance and hygienic properties. The equipment operates by submerging the motor and pump directly into the water, making it suitable for water lifting projects in deep wells, rivers, reservoirs, and similar environments. It is primarily used for agricultural irrigation, drinking water supply for people and livestock in plateau and mountainous regions, as well as urban and industrial water supply and drainage. Its compact structural design ensures easy installation and maintenance, while also delivering high efficiency, energy savings, and safe, reliable operation.

Product Description

FAQ

Product Advantage

1. High Efficiency & Energy Saving: Optimized hydraulic design reduces energy consumption, achieving higher operational efficiency than comparable products.

2. Corrosion Resistance: Stainless steel construction ensures long-term resistance to water corrosion, extending equipment lifespan .

3. Lightweight Design: Compact and lightweight structure facilitates transportation and underground installation.

Technical Parameters

Operating conditions

Qmax: 20(m³/h)

Capacity from 8to 12(m³h)

Total head from 210 to 44(m)

Motor:

Power: 3 to 11kW(Single phase)

Insulation class:B

Protection grade : IP58

Maximum diameter: φ125mm

Highest temperature of liquid: 35℃

Components	Material
Pump external casing	AISI 304 SS
Delivery casing	Cast-Cu ASTM280
Suction lantern	Cast-Cu ASTM280
Diffuser	Plastic.PC
Impeller	Plastic.POM
Shaft	①AISI 316 SS ②AISI 304 SS
Shaft coupling	①AISI 316 SS ②AISI 304 SS
Wear ring	AISI 304 SS
Motor external casing	AISI 304 SS
Top cover	Cast-Cu ASTM280
Bottom support	AISI 304 SS
Mechanical seal	Special seal for deep well(carbon-SIC/TC)
Shaft	AISI 304 SS-C1045
Bearing	NSK
Seal lubricant oil	Oil for food machinery and pharmaceutic use.

Model Optional

MODEL		DN	DIMENSIONS(mm)					WEIGHTS(kg)
1~ 220-240V	3~ 380-415V		P	M(S)	M(T)	T(S)	T(T)	P	M（S)	M(T)	T(S)	T(T)
5SDM10/5	5ST10/5	2"	460	377	377	837	837	4.7	14.5	14.5	19.2	19.2
5SDM10/6	5ST10/6	2"	493	402	402	895	895	5.1	16.4	16.4	21.5	21.5
5SDM10/8	5ST10/8	2"	560	437	437	997	997	5.5	19.6	19.6	25.1	25.1
5SDM10/10	5ST10/10	2"	627	477	477	1104	1104	6.2	22.3	22.3	28.5	28.5
一	5ST10/13	2"	727	537	537	1264	1264	7.4	27.1	27.1	34.5	34.5
一	5ST10/16	2"	827	一	607	一	1434	8.7	一	32.5	一	41.2
一	5ST10/20	2"	961	一	677	一	1638	10.4	—	38.5	一	48.9
一	5ST10/25	2"	1128	一	817	一	1945	11.9	一	45.6	一	57.5
—	5ST10/30	2"	1295	一	927	-	2222	13.4	一	52.8	一	66.2

Performance Charter

Performance Data 50Hz
MODEL		P₂		DELIVERY					n≈2850 I/min
1~ 220V/240V	3~ 380V/415V	KW	HP	m³/h	0	1.8	3.6	5.4	7.2	9.0	10.8	12.6	14.4
				/min	0	30	60	90	120	150	180	210	240
5STM10/6	5ST10/6	1.5	2	Head(m)	63	63	62	59	55	49	40	29	16
5STM10/8	5ST10/8	2.2	3		84	84	83	79	73	65	53	39	22
5STM10/10	5ST10/10	3	4		105	105	103	99	91	81	67	48	27
一	5ST10/13	4	5.5		136	137	134	128	119	105	87	63	35
一	5ST10/17	5.5	7.5		178	179	175	168	155	138	114	82	46
一	5ST10/21	7.5	10		220	221	217	207	192	170	140	101	57
一	5ST10/28	11	15		293	295	289	276	256	227	187	135	76

Product Uses

Agricultural Irrigation: Supports high-capacity groundwater extraction to meet farmland water demands.
Drinking Water Supply: Suitable for water supply projects in remote areas such as highland and mountainous regions.
Industrial Drainage: Used for water supply and drainage in mines, railways, and construction sites.

Operating Instructions

1. The deep well pump should only be used with clean water sources containing less than 0.01% sand.

2. The pump must not run dry (without water). The first and second-stage impellers must be submerged at least 1 meter below the water level. Monitor the water level in the well during operation.

3. If excessive vibration occurs around the base during operation, inspect the pump bearings or motor packing for wear. Replace worn parts if leakage is detected.

4. If the pump has been used to transport sandy or muddy water, flush it thoroughly with clean water before shutdown.

5. Before stopping the pump, first close the discharge valve, cut off the power supply, and lock the switch box. In winter, drain all residual water from the pump to prevent freezing damage.

(Note: Technical terms like "impellers," "run dry," and "motor packing" are accurately translated. Safety warnings are emphasized, and steps are presented in clear, imperative form for ease of understanding.)

FAQs

How to Choose a Deep Well Pump?

Head Matching: Ensure the rated head does not significantly exceed the actual operating head—ideally, no more than 25% higher than the actual requirement. The actual head is the vertical distance from the well's water level to the discharge pool, including:
Net head (static lift)
Friction head loss (typically 6–9% of net head, or 1–2 meters).
The impeller should be submerged 1–1.5 meters below the water level, and the total length of the submerged pump section must not exceed the maximum well depth specified in the manual.
Flow Rate Selection: Match the pump's flow rate to the well's yield capacity.
Sand Content: Avoid water with excessive sand (>0.1%), as it accelerates wear and shortens the pump's lifespan.
Size Compatibility: The pump's maximum outer diameter should be 25–50 mm smaller than the well diameter to prevent vibration-induced damage to the well casing.
(Note: Technical terms like "head," "impeller," and "friction loss" are precisely translated. Key parameters (e.g., 25%, 0.1%) are retained for accuracy. Safety margins (e.g., 25–50 mm clearance) are emphasized for practical application.)
What Makes SRM Pumps Different?

With over 40 years of expertise in professional pump manufacturing, SRM Group—a Top 500 Enterprise in China—stands out for its:
Mature Production System–Rigorous quality control ensures reliable, high-performance pumps.
Customer-Centric Approach–We customize solutions to meet specific needs.
End-to-End Support–Beyond a 1-year warranty, we provide ongoing service assistance.
Choose SRM for durable, tailored pumping solutions backed by decades of industry leadership.
How to Purchase SRM Pumps?

Purchasing SRM pumps is simple:
Contact Us–Visit our website and reach out via:
Email Phone Social Media DM
(A dedicated representative will assist you promptly.)
Can I Use My Own Logo?

Custom Branding Option–We support OEM/ODM services and can produce pumps with your logo, provided you:
Own the trademark OR
Have authorization from the trademark owner.

5SD Deep Well

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