Description :

Introducing the 3.5SDM3/3.5SDM4 Series Submersible Borehole Pump, a robust and efficient solution designed for irrigation systems. This pump is engineered with a stainless steel (SS) shaft and a POM (Polyoxymethylene) impeller, ensuring durability and resistance to wear in various water conditions commonly found in agricultural and irrigation 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、This pump features a double rings hole design and a stainless steel thickened base, ensuring durability and long-lasting performance.The double rings hole design enhances the pump's efficiency and performance.
2、The stainless steel thickened base adds to the pump's durability and resistance to corrosion. This ensures that the pump can withstand the harsh conditions of being submerged in water for extended periods, providing reliable performance over time.
3、The submersible design of the pump allows it to be fully submerged in water, maximizing efficiency and minimizing noise. It eliminates the need for priming, making the pump easy to operate and maintain.

Operating Conditions:

Maximum fluid temperature up to +35℃
Maximum sand content : 0.25%
Minimum well diameter : 3.5"

Motor and Pump:

Rewindable motor
Single-phase: 220-240V/50Hz or Three-phase: 380-415V/50Hz compatibility
Equip with start control box or digital auto-control box
Pumps are designed by casing stressed
Curve tolerance according to ISO 9906

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 Material :

Components	Material
Pump external casing	Stainless Steel
Delivery casing	1.Cast-Cu ASTM C85500 2.AISI 304 SS
Suction lantern	1.Cast-Cu ASTM C85500 2.AISI 304 SS
Diffuser	Plastic.PC
Impeller	Plastic.POM
Shaft	AISI 304 SS
Shaft coupling	AISI 304 SS
Wear ring	AISI 304 SS
Motor external casing	Stainless Steel
Oil chamber	®Cast-Cu ASTM C85500
Oil chamber	②Cast-iron ASTM NO.30
Bottom support	AISI 304 SS
Mechanical seal	Special seal for deep well(Graphite-Ceramic/TC)
Shaft	AISI 304 SS-ASTM 5140
Seal lubricant oil	Oil for food machinery and pharmaceutic use.

Performance Curves :

Technical Data ( 50Hz ) :

Model		Power		Delivery n≈2850r/min
1~220-240V	3~380-415V	KW	HP	Q(m³/h)	0	0.6	1.2	1.8	2.4	3.0	3.6	4.2	4.8
1~220-240V	3~380-415V	KW	HP	Q(l/min)	0	10	20	30	40	50	60	70	80
3.5S□M3/6	-	0.25	0.33	H(m)	35	34	33	32	29	26	20	14	8
3.5S□M3/8	-	0.37	0.5		46	45	44	42	39	34	27	19	11
3.5S□M3/11	3.5S□3/11	0.55	0.75		63	62	61	58	54	47	37	26	15
3.5S□M3/14	3.5S□3/14	0.75	1		81	79	77	74	68	60	47	33	19
3.5S□M3/17	-	0.92	1.25		98	96	94	89	83	72	57	40	23
3.5S□M3/20	3.5S□3/20	1.1	1.5		115	113	110	105	98	85	68	48	28
3.5S□M3/23	-	1.3	1.75		132	129	127	121	112	98	78	55	32
3.5S□M3/26	3.5S□3/26	1.5	2		150	146	143	137	127	111	88	62	36
-	3.5S□3/30	1.8	2.5		173	169	165	158	146	128	101	71	41
-	3.5S□3/35	2.2	3		202	197	193	184	170	149	118	83	48

3.5S□ in the above table can be replaced by any of 3.5SD,3.5SE,3.5SB

Technical Data ( 60Hz ) :

Model		Power		Delivery n=3450r/min
1~110/220V	3~220/380V	KW	HP	Q(m³/h) Q(l/min)	0	0.6	1.2	1.8	24	3.0	3.6	4.2	4.8	5.4
1~110/220V	3~220/380V	KW	HP	Q(m³/h) Q(l/min)	0	10	20	30	40	50	60	70	80	90
3.5□□M4/3	3.5□□4/3	0 25	0.33	H(m)	25	25	24	24	23	22	19	16	13	9
3.5□□M4/4	3.5□□4/4	0.37	0.5		34	33	33	32	31	29	26	22	17	12
3.5□□M4/6	3.5□□4/6	0.55	0.75		51	50	50	49	47	44	39	33	26	18
3.5□□M4/8	3.5□□4/8	0.75	1		68	67	66	65	63	58	52	44	34	24
3.5□□M4/10	3.5□□4/10	0.92	1.25		84	83	82	81	78	73	64	54	43	29
3.5□□M4/12	3.5□□4/12	1.1	1.5		101	100	99	98	94	87	77	65	51	35
3.5□□M4/14	3.5□□4/14	1.3	1.75		118	116	115	114	109	102	90	76	60	41
3.5□□M4/16	3.5□□4/16	1.5	2		135	133	132	130	125	116	103	87	68	47