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6SR Series Deep Well Pump


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The 6SR 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.

Model:
6SR
Brand:
SRM

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

Max. fluid temperature up to +35℃.

Max. sand content: 0.25%.

Min. well diameter: 6".

Rewindable motor or Full obturated screen motor

Three-phase

①Direct start(1 cable)

②Star-delta start(2 cables)

Equip with start control box or digital auto-conrol box

NEMA dimension standards

Curve tolerance according to ISO 2548

Optional:

Special mechanical seal

Other voltages or frequency 60 Hz

Components	Material
Pump external casing	AISI 304 SS
Delivery casing	Cast-iron G20 UNI5007
Suction lantern	Cast-iron G20 UNI5007
Diffuser	Plastic.PCIAISI 304 SS
Impeller	①Plastic.POM ②Plastic.PPO
Shaft	①AISI 316 SS ②AISI 304 SS
Shaft coupling	①AISI 316 SS②AISI 304 SS
Wrar ring	AISI 304 SS
Motor external casing	AISI 304 SS
Top chock	①Cast-iron G20 UNI5007②AISI 304 SS
Bottom support	①Cast-iron G20 UNI5007②AISI 304 SS
Seal	①NBR ②Carbon-SIC/TC
Shaft	AISI 304 SS-C1045
Thrust bearing	①Ceramic/Carbon ②NSK
Radial bearing	①Ceramic/TC②NSK

Model Optional

Performance Charter

Performance Data 50Hz
MODEL	P₂		DELIVERY n≈2850 r/min
3~ 380V/415V	KW	HP	m³/h	0	3	6	9	12	15	18	21	24	27
			Q I/min	0	50	100	150	200	250	300	350	400	450
6SR18/6	5.5	7.5	H(m)	86	83	80	76	71	63	54	44	32	18
6SR18/7	5.5	7.5		101	97	94	89	83	74	64	51	37	21
6SR18/9	7.5	10		129	124	120	114	106	95	82	65	47	27
6SR18/11	9.2	12.5		158	152	147	140	130	116	110	80	58	33
6SR18/13	11	15		187	179	174	165	153	137	118	95	69	39
6SR18/15	13	17.5		215	207	200	191	177	158	136	109	79	45
6SR18/18	15	20		259	248	240	229	212	190	163	131	95	54
6SR18/22	18.5	25		316	304	294	280	260	232	200	160	116	66
6SR18/26	22	30		373	359	347	331	307	274	236	189	137	78
6SR18/30	26	35		431	414	401	382	354	317	272	218	158	90
6SR18/34	30	40		488	469	454	433	401	359	309	247	179	102
6SR18/36	30	40		517	497	481	458	425	380	327	262	190	108

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.

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.