ST-4023 – 4-inch borehole pump

Name: ST-4023 – 4-inch borehole pump
SKU: ST-4023

All ST series models (70) ↓

23 stages · 4 kW (5.5 HP) · 2" · Hmax 148 m · Qmax 12 t/h (200 l/min) · IP68

Technical specifications

Select a value to find pumps with the same specification

Pump type	Borehole (submersible)
Maximum flow (Qmax)	12 t/h · 200 l/min
Maximum head (Hmax)	148 m
Borehole diameter	4"
Power	4 kW · 5.4 HP
Protection class	IP68
Outlet (discharge)	2" (50 mm)

Casing material	Stainless steel
Impeller material	Noryl / technopolymer
Number of stages	23
Pump length	921 mm
Weight	8.4 kg
Insulation class	B
Frequency	50 Hz

SKU ST-4023

Price

on request

Send an inquiry to receive prices and delivery terms within 1–2 days.

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Delivery in Georgia
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Model tables

All models in this series

70 Model 10 families – head at each flow for every model. Select a row to open the model's page.

ST-05

Nominal 1.1 t/h · 18.927 l/min

ST-05 Family performance comparison
Modelt/h →l/min →	00	0.35	0.610	0.915	1.220	1.525
ST-05100.37 kWVoltage not confirmed	67	63	55	46	33	18
ST-05130.37 kWVoltage not confirmed	86	78	70	56	42	23
ST-05190.55 kWVoltage not confirmed	126	118	105	86	60	30
ST-05260.75 kWVoltage not confirmed	173	160	141	117	81	39
ST-05381.1 kWVoltage not confirmed	253	234	208	169	117	52

Table 1. ST-05 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-10

Nominal 2.3 t/h · 37.854 l/min

ST-10 Family performance comparison
Modelt/h →l/min →	00	0.915	1.220	1.525	1.830	2.135	2.440	2.745	350
ST-10050.37 kWVoltage not confirmed	34	32	31	29	27	25	23	19	16
ST-10070.37 kWVoltage not confirmed	46	43	42	39	36	33	29	26	22
ST-10100.55 kWVoltage not confirmed	69	65	63	60	55	50	44	37	29
ST-10140.75 kWVoltage not confirmed	92	86	83	79	74	67	60	52	42
ST-10201.1 kWVoltage not confirmed	139	131	127	120	111	101	90	75	60
ST-10281.5 kWVoltage not confirmed	189	178	172	164	153	140	126	108	90
ST-10402.2 kWVoltage not confirmed	265	247	237	224	208	189	170	147	120

Table 2. ST-10 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-13

Nominal 3 t/h · 49.21 l/min

ST-13 Family performance comparison
Modelt/h →l/min →	00	1.220	1.525	1.830	2.135	2.440	2.745	350	3.660	4.270
ST-13050.37 kWVoltage not confirmed	34	32	31	30	29	28	26	24	19	13
ST-13080.55 kWVoltage not confirmed	54	51	50	49	46	43	41	38	30	19
ST-13110.75 kWVoltage not confirmed	72	68	66	64	61	58	54	49	38	26
ST-13161.1 kWVoltage not confirmed	106	101	98	95	89	83	77	70	54	33
ST-13211.5 kWVoltage not confirmed	142	135	132	127	122	115	108	100	79	49
ST-13322.2 kWVoltage not confirmed	208	200	194	187	177	165	152	138	104	62

Table 3. ST-13 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-18

Nominal 4.1 t/h · 68.137 l/min

ST-18 Family performance comparison
Modelt/h →l/min →	00	1.525	1.830	2.135	2.440	2.745	350	3.660	4.270	4.880	5.490	6100
ST-18050.37 kWVoltage not confirmed	33	29	28	27	26	25	-	21	18	13	8	3
ST-18070.55 kWVoltage not confirmed	46	43	42	41	40	39	37	33	28	21	13	7
ST-18090.75 kWVoltage not confirmed	59	55	54	52	51	49	47	43	37	28	20	10
ST-18141.1 kWVoltage not confirmed	93	87	86	83	81	-	76	68	58	47	33	20
ST-18181.5 kWVoltage not confirmed	120	113	111	108	105	102	98	88	75	60	42	25
ST-18272.2 kWVoltage not confirmed	175	164	161	157	152	147	-	127	109	87	61	35
ST-18353 kWVoltage not confirmed	231	217	212	208	202	196	189	170	149	120	87	50
ST-18443.7 kWVoltage not confirmed	285	266	260	254	248	238	229	203	172	139	100	59
ST-18484 kWVoltage not confirmed	322	299	292	285	276	267	256	231	199	160	118	70

Table 4. ST-18 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-25

Nominal 5.7 t/h · 94.635 l/min

ST-25 Family performance comparison
Modelt/h →l/min →	00	2.135	2.440	2.745	350	3.660	4.270	4.880	5.490	6100
ST-25040.37 kWVoltage not confirmed	26	23	22	22	21	19	17	14	11	7
ST-25060.55 kWVoltage not confirmed	38	36	35	33	32	30	26	22	18	12
ST-25080.75 kWVoltage not confirmed	51	47	46	44	43	39	35	30	24	18
ST-25121.1 kWVoltage not confirmed	77	72	71	69	68	63	57	49	41	31
ST-25161.5 kWVoltage not confirmed	102	98	96	94	92	86	77	68	57	46
ST-25242.2 kWVoltage not confirmed	151	142	139	136	132	122	111	97	80	62
ST-25323 kWVoltage not confirmed	203	188	185	180	175	162	146	127	105	80
ST-25403.7 kWVoltage not confirmed	253	232	227	222	216	202	182	159	131	102
ST-25444 kWVoltage not confirmed	278	265	260	254	247	230	210	187	159	127

Table 5. ST-25 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-35

Nominal 7.9 t/h · 132.489 l/min

ST-35 Family performance comparison
Modelt/h →l/min →	00	350	3.660	4.270	4.880	5.490	6100	7.2120	8.4140
ST-35070.75 kWVoltage not confirmed	42	36	34	32	30	28	25	19	11
ST-35101.1 kWVoltage not confirmed	62	53	51	48	45	41	38	29	18
ST-35141.5 kWVoltage not confirmed	90	77	74	71	68	63	59	46	28
ST-35202.2 kWVoltage not confirmed	125	107	102	97	92	86	80	62	40
ST-35273 kWVoltage not confirmed	169	145	139	131	123	115	107	84	55
ST-35343.7 kWVoltage not confirmed	208	178	170	162	153	143	132	103	66
ST-35364 kWVoltage not confirmed	221	190	181	173	164	154	143	112	72
ST-35495.5 kWVoltage not confirmed	302	257	246	234	222	209	193	151	96

Table 6. ST-35 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-40

Nominal 9.1 t/h · 151.42 l/minThis family

ST-40 Family performance comparison
Modelt/h →l/min →	00	4.880	5.490	6100	7.2120	8.4140	9.6160	10.8180	12200
ST-40040.75 kWVoltage not confirmed	26	24	23	22	21	19	17	15	12
ST-40061.1 kWVoltage not confirmed	39	36	35	34	32	29	26	22	17
ST-40081.5 kWVoltage not confirmed	52	48	47	46	43	39	35	29	24
ST-40132.2 kWVoltage not confirmed	82	75	73	71	66	59	50	40	30
ST-40173 kWVoltage not confirmed	108	98	96	94	87	79	70	58	46
ST-40213.7 kWVoltage not confirmed	132	117	114	111	103	93	82	68	52
ST-4023Current4 kWVoltage not confirmed	148	134	131	127	118	108	95	79	60
ST-70325.5 kWVoltage not confirmed	202	182	178	172	160	143	125	105	80

Table 7. ST-40 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-55

Nominal 12.5 t/h · 208.197 l/min

ST-55 Family performance comparison
Modelt/h →l/min →	00	4.880	5.490	6100	7.2120	8.4140	9.6160	10.8180	12200	13.2220	14.4240
ST-55071.1 kWVoltage not confirmed	41	35	34	33	32	29	26	23	18	14	8
ST-55101.5 kWVoltage not confirmed	58	49	48	47	44	41	37	32	27	20	13
ST-55142.2 kWVoltage not confirmed	83	71	69	67	63	58	54	48	40	31	20
ST-55183 kWVoltage not confirmed	107	92	90	87	83	77	70	62	52	39	26
ST-55223.7 kWVoltage not confirmed	131	110	107	104	95	91	82	71	58	45	30
ST-55244 kWVoltage not confirmed	141	118	116	113	106	97	88	77	63	49	33
ST-55325.5 kWVoltage not confirmed	189	162	157	153	144	134	122	107	90	70	47

Table 8. ST-55 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-60

Nominal 13.6 t/h · 227.1247 l/min

ST-60 Family performance comparison
Modelt/h →l/min →	00	6100	7.2120	8.4140	9.6160	10.8180	12200	13.2220	14.4240	15.6260
ST-60071.5 kWVoltage not confirmed	45	37	36	33	31	28	25	22	18	14
ST-60102.2 kWVoltage not confirmed	64	54	52	48	44	41	36	32	26	20
ST-60143 kWVoltage not confirmed	89	76	72	67	62	56	49	43	35	28
ST-60173.7 kWVoltage not confirmed	107	90	86	80	74	67	59	51	42	32
ST-60194 kWVoltage not confirmed	120	102	97	91	89	76	68	58	48	37
ST-60265.5 kWVoltage not confirmed	163	136	129	120	111	100	87	75	61	48

Table 9. ST-60 – columns show flow in t/h, with l/min below; cells show head in metres.

ST-80

Nominal 18.2 t/h · 302.83 l/min

ST-80 Family performance comparison
Modelt/h →l/min →	00	8.4140	9.6160	10.8180	12200	13.2220	14.4240	15.6260	16.8280	18300	19.2320	20.4340	21.6360	22.8380	24400
ST-80082.2 kWVoltage not confirmed	51	41	39	37	35	33	31	29	27	24	22	20	17	14	12
ST-80113 kWVoltage not confirmed	70	57	54	52	49	47	44	41	38	34	31	28	24	21	18
ST-80133.7 kWVoltage not confirmed	81	67	64	61	58	55	52	48	45	41	38	34	30	26	22
ST-80154 kWVoltage not confirmed	97	79	76	73	69	66	63	58	54	50	46	41	36	32	27
ST-80205.5 kWVoltage not confirmed	125	102	98	94	89	84	79	74	70	65	60	54	48	43	37

Table 10. ST-80 – columns show flow in t/h, with l/min below; cells show head in metres.

Source: manufacturer's technical sheet.Values are for reference. In a real system, pipe diameter, length and bends reduce the available head.

Technical sheet

Model ST-4023

Performance curve

A pump has a performance curve rather than a single flow and head. Qmax and Hmax are at opposite ends and never occur together: at maximum head, flow is zero; at maximum flow, head is zero. Actual operation lies between these extremes.

Maximum head: 148m
Maximum flow: 12t/h
Midpoint: 118m

Chart 1. Head (m) against flow (t/h, l/min), ST-4023. Blue points show the manufacturer's measured values. Move the pointer near the curve, or touch it on a phone, to read the head and flow at any point.

Measured values

Performance table
t/h
l/min
Head, m

Select a number in the table to see the corresponding point.

From the catalogue

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Borehole pumps

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ST-4023 – 4-inch borehole pump

23 stages · 4 kW (5.5 HP) · 2" · Hmax 148 m · Qmax 12 t/h (200 l/min) · IP68

SKU ST-4023Series ST-40

Technical specifications

Pump type	Borehole (submersible)
Maximum flow (Qmax)	12 t/h · 200 l/min
Maximum head (Hmax)	148 m
Borehole diameter	4"
Power	4 kW · 5.4 HP
Protection class	IP68
Outlet (discharge)	2" (50 mm)
Casing material	Stainless steel
Impeller material	Noryl / technopolymer
Number of stages	23
Pump length	921 mm
Weight	8.4 kg
Insulation class	B
Frequency	50 Hz

Performance curve (Q–H)

ST-4023 - Manufacturer's curve. Q: flow; H: head.

Performance table

Model	Q (t/h)	0	4.8	5.4	6	7.2	8.4	9.6	10.8	12
Model	Q (l/min)	0	80	90	100	120	140	160	180	200
ST-4023	H (m)	148	134	131	127	118	108	95	79	60

Q: flow; H: head at the corresponding flow. Full ST-40 series on pn.ge.