GDL Vertical Inline Multistage Centrifugal Pump

Name: GDL Vertical Inline Multistage Centrifugal Pump
Brand: DFIN PUMP
SKU: GDL

Model: GDL

GDL Vertical Inline Multistage Centrifugal Pump is designed for clean-water transfer, pressure boosting, circulation and general industrial service. DFIN Pump provides model verification, material selection and technical support based on the actual duty point.

TECHNICAL DATA

Specifications, performance and construction

Confirm the final operating point, materials, motor and connection standard before ordering.

Product Overview

GDL Vertical Inline Multistage Centrifugal Pump is an industrial centrifugal pump selected for clean-water transfer, pressure boosting, circulation and general industrial service. The final configuration should be verified against the actual liquid, duty point, temperature, installation and power supply.

Typical Applications

Clean-water transfer, pressure boosting, circulation and general industrial service.

Design Features

Compact hydraulic design
Stable flow with low vibration
Multiple materials and motor options
Model and material selection supported by DFIN Pump engineers

Extracted Operating Data

：≤2.5Mpa
：-15-+120℃
：2-160m3/h
：1.1-90kw

Values are reference data from the authorized source catalog. Confirm the selected model before ordering.

Technical Performance Data

1	Pump body	11	Coupling
2	Tighten the bolts	12	Connector
3	outer cylinder	13	Air nozzle
4	impeller	14	mechanical seal
5	Impeller block sleeve	15	axis
6	Bushing	16	middle section
7	gasket	17	Bushing nut
8	nut	18	bush
9	pin	19	Return pipe parts
10	Motor

Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
25GDL2-12	3	2	36	2900	1.1	30	2.9	58
25GDL2-12	4	2	48	2900	1.1	30	2.9	62
25GDL2-12	5	2	60	2900	2	30	2.9	68
25GDL2-12	6	2	72	2900	2	30	2.9	72
25GDL2-12	7	2	84	2900	2	30	2.9	78
25GDL2-12	8	2	96	2900	2.2	30	2.9	82
25GDL2-12	9	2	108	2900	2	30	2.9	86
25GDL2-12	10	2	120	2900	3	30	2.9	98
25GDL2-12	11	2	132	2900	3	30	2.9	102
25GDL2-12	12	2	144	2900	3	30	2.9
25GDL2-12	13	2	156	2900	4	30	2.9
25GDL2-12	14	2	168	2900	4	30	2.9
25GDL2-12	15	2	180	2900	4	30	2.9
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
25GDL4-11	3	4	33	2900	1.1	42	2.9	58
25GDL4-11	4	4	44	2900	1.5	42	2.9	65
25GDL4-11	5	4	55	2900	2.2	42	2.9	72
25GDL4-11	6	4	66	2900	2.2	42	2.9	76
25GDL4-11	7	4	77	2900	3	42	2.9	86
25GDL4-11	8	4	88	2900	3	42	2.9	90
25GDL4-11	9	4	99	2900	3	42	2.9	94
25GDL4-11	10	4	110	2900	4	42	2.9	110
25GDL4-11	11	4	121	2900	4	42	2.9	114
25GDL4-11	12	4	132	2900	4	42	2.9
25GDL4-11	13	4	143	2900	4	42	2.9
25GDL4-11	14	4	154	2900	5.5	42	2.9
25GDL4-11	15	4	165	2900	5.5	42	2.9
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
40GDL6-12	3	6	36	2900	1.5	52	2.9	72
40GDL6-12	4	6	48	2900	2.2	52	2.9	78
40GDL6-12	5	6	60	2900	2.2	52	2.9	82
40GDL6-12	6	6	72	2900	3	52	2.9	92
40GDL6-12	7	6	84	2900	3	52	2.9	96
40GDL6-12	8	6	96	2900	4	52	2.9	112
40GDL6-12	9	6	108	2900	4	52	2.9	116
40GDL6-12	10	6	120	2900	4	52	2.9	120
40GDL6-12	11	6	132	2900	5.5	52	2.9	140
40GDL6-12	12	6	144	2900	5.5	52	2.9
40GDL6-12	13	6	156	2900	7.5	52	2.9
40GDL6-12	14	6	168	2900	7.5	52	2.9
40GDL6-12	15	6	180	2900	7.5	52	2.9
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
50GDL12-15	2	12	30	2900	2.2	57	3.5	113
50GDL12-15	3	12	45	2900	3	57	3.5	129
50GDL12-15	4	12	60	2900	4	57	3.5	149
50GDL12-15	5	12	75	2900	5.5	57	3.5	181
50GDL12-15	6	12	90	2900	5.5	57	3.5	190
50GDL12-15	7	12	105	2900	7.5	57	3.5	204
50GDL12-15	8	12	120	2900	7.5	57	3.5	212
50GDL12-15	9	12	135	2900	11	57	3.5	265
50GDL12-15	10	12	150	2900	11	57	3.5	273
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
50GDL12-25	1	12	25	2900	2.2	57	3.5	105
50GDL12-25	2	12	50	2900	4	57	3.5	119
50GDL12-25	3	12	75	2900	5.5	57	3.5	138
50GDL12-25	4	12	100	2900	7.5	57	3.5	157
50GDL12-25	5	12	125	2900	11	57	3.5	184
50GDL12-25	6	12	150	2900	11	57	3.5	191
50GDL12-25	7	12	175	2900	15	57	3.5	210
50GDL12-25	8	12	200	2900	15	57	3.5	229
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
50GDL18-15	2	18	30	2900	3	63	4	122
50GDL18-15	3	18	45	2900	4	63	4	142
50GDL18-15	4	18	60	2900	5.5	63	4	175
50GDL18-15	5	18	75	2900	7.5	63	4	189
50GDL18-15	6	18	90	2900	7.5	63	4	198
50GDL18-15	7	18	105	2900	11	63	4	252
50GDL18-15	8	18	120	2900	11	63	4	261
50GDL18-15	9	18	135	2900	15	63	4	280
50GDL18-15	10	18	150	2900	15	63	4	289
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
50GDL18-24	1	18	24	2900	3	63	4	122
50GDL18-24	2	18	48	2900	4	63	4	142
50GDL18-24	3	18	72	2900	7.5	63	4	175
50GDL18-24	4	18	96	2900	11	63	4	230
50GDL18-24	5	18	120	2900	11	63	4	247
50GDL18-24	6	18	144	2900	15	63	4	265
50GDL18-24	7	18	168	2900	18.5	63	4	274
50GDL18-24	8	18	192	2900	22	63	4	301
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
65GDL24-12	2	24	24	2900	3	63	4	122
65GDL24-12	3	24	36	2900	4	63	4	142
65GDL24-12	4	24	48	2900	5.5	63	4	175
65GDL24-12	5	24	60	2900	7.5	63	4	189
65GDL24-12	6	24	72	2900	7.5	63	4	252
65GDL24-12	7	24	84	2900	11	63	4	261
65GDL24-12	8	24	96	2900	11	63	4	280
65GDL24-12	9	24	108	2900	15	63	4	289
65GDL24-12	10	24	120	2900	15	63	4	298
65GDL24-12	11	24	132	2900	15	63	4	317
65GDL24-12	12	24	144	2900	18.5	63	4	346
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
65GDL24-24	1	24	24	2900	3	63	4	122
65GDL24-24	2	24	48	2900	5.5	63	4	175
65GDL24-24	3	24	72	2900	7.5	63	4	189
65GDL24-24	4	24	96	2900	11	63	4	262
65GDL24-24	5	24	120	2900	15	63	4	317
65GDL24-24	6	24	144	2900	18.5	63	4	346
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
80GDL36-12	2	36	24	2900	4	71	4.2	193
80GDL36-12	3	36	36	2900	5.5	71	4.2	227
80GDL36-12	4	36	48	2900	7.5	71	4.2	244
80GDL36-12	5	36	60	2900	11	71	4.2	292
80GDL36-12	6	36	72	2900	11	71	4.2	302
80GDL36-12	7	36	84	2900	15	71	4.2	322
80GDL36-12	8	36	96	2900	15	71	4.2	332
80GDL36-12	9	36	108	2900	18.5	71	4.2	365
80GDL36-12	10	36	120	2900	18.5	71	4.2	375
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
80GDL36-24	1	36	24	2900	4	71	4.2	193
80GDL36-24	2	36	48	2900	7.5	71	4.2	193
80GDL36-24	3	36	72	2900	11	71	4.2	227
80GDL36-24	4	36	96	2900	15	71	4.2	244
80GDL36-24	5	36	120	2900	18.5	71	4.2	292
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
80GDL54-14	2	54	28	2900	7.5	73	4	218
80GDL54-14	3	54	42	2900	11	73	4	267
80GDL54-14	4	54	56	2900	15	73	4	287
80GDL54-14	5	54	70	2900	18.5	73	4	320
80GDL54-14	6	54	84	2900	18.5	73	4	330
80GDL54-14	7	54	98	2900	22	73	4	373
80GDL54-14	8	54	112	2900	30	73	4	400
80GDL54-14	9	54	126	2900	30	73	4	421
80GDL54-14	10	54	140	2900	37	73	4	432
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
80GDL54-28	1	54	28	2900	7.5	73	4	218
80GDL54-28	2	54	56	2900	15	73	4	287
80GDL54-28	3	54	84	2900	18.5	73	4	320
80GDL54-28	4	54	112	2900	30	73	4	453
80GDL54-28	5	54	140	2900	37	73	4	493
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
100GDL72-14	2	72	28	2900	11	73	4.5	276
100GDL72-14	3	72	42	2900	15	73	4.5	298
100GDL72-14	4	72	56	2900	18.5	73	4.5	336
100GDL72-14	5	72	70	2900	22	73	4.5	381
100GDL72-14	6	72	84	2900	30	73	4.5	453
100GDL72-14	7	72	98	2900	30	73	4.5	466
100GDL72-14	8	72	112	2900	37	73	4.5	493
100GDL72-14	9	72	126	2900	37	73	4.5	582
100GDL72-14	10	72	140	2900	45	73	4.5	595
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
100GDL72-28	1	72	28	2900	11	73	4.5	276
100GDL72-28	2	72	56	2900	18.5	73	4.5	336
100GDL72-28	3	72	84	2900	30	73	4.5	453
100GDL72-28	4	72	112	2900	37	73	4.5	582
100GDL72-28	5	72	140	2900	45	73	4.5	595
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
100GDL100-30	1	100	30	2900	18.5	73	4.5	336
100GDL100-30	2	100	60	2900	30	73	4.5	453
100GDL100-30	3	100	90	2900	37	73	4.5	493
100GDL100-30	4	100	120	2900	55	73	4.5	640
100GDL100-30	5	100	150	2900	75	73	4.5	840
100GDL100-30	6	100	180	2900	75	73	4.5	855
100GDL100-30	7	100	210	2900	90	73	4.5	870
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
125GDL100-20	2	108	40	2900	18.5	74	4.5	292
125GDL100-20	3	108	60	2900	30	74	4.5	430
125GDL100-20	4	108	80	2900	37	74	4.5	463
125GDL100-20	5	108	100	2900	45	74	4.5	555
125GDL100-20	6	108	120	2900	55	74	4.5	640
125GDL100-20	7	108	140	2900	75	74	4.5	840
125GDL100-20	8	108	160	2900	75	74	4.5	855
125GDL100-20	9	108	180	2900	90	74	4.5	870
125GDL100-20	10	108	200	2900	90	74	4.5	955
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
125GDL100-30	1	100	30	2900	18.5	74	4.5	336
125GDL100-30	2	100	60	2900	30	74	4.5	453
125GDL100-30	3	100	90	2900	37	74	4.5	493
125GDL100-30	4	100	120	2900	55	74	4.5	640
125GDL100-30	5	100	150	2900	75	74	4.5	840
125GDL100-30	6	100	180	2900	75	74	4.5	855
125GDL100-30	7	100	210	2900	90	74	4.5	870
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
150GDL160-20	2	160	40	2900	30	78	4.5	422
150GDL160-20	3	160	60	2900	37	78	4.5	452
150GDL160-20	4	160	80	2900	55	78	4.5	613
150GDL160-20	5	160	100	2900	75	78	4.5	820
150GDL160-20	6	160	120	2900	75	78	4.5	836
150GDL160-20	7	160	140	2900	90	78	4.5	922
Model	Stages	Flow	Head	Speed	Motor Power	Efficiency	RequiredNPSHr	Weight
Model	Stages	m3/h	M	r/min	kw	%	NPSH	KG
150GDL160-30	1	160	30	2900	30	78	4.5	422
150GDL160-30	2	160	60	2900	37	78	4.5	452
150GDL160-30	3	160	90	2900	55	78	4.5	613
150GDL160-30	4	160	120	2900	75	78	4.5	820
150GDL160-30	5	160	150	2900	90	78	4.5	922
150GDL160-30	6	160	180	2900	110	78	4.5	1210
150GDL160-30	7	160	210	2900	132	78	4.5	1360

Model	H1	L	B	4-φd1	Inlet flange(J)
Model	H1	L	B	4-φd1	DN	N-φD2	φD
25GDL	60	00	200	4-φ18	25	4-φ14	85
40GDL	80	60	235	4-φ18	40	4-φ18	110
50GDL	100	60	235	4-φ18	50	4-φ18	125
65GDL	110	60	235	4-φ18	65	4-φ18	145
80GDL	130	420	00	4-φ18	80	8-φ18	160
100GDL	160	520	50	4-φ18	100	8-φ18	180
125GDL	160	500	400	4-φ18	125	8-φ18	210
150GDL	180	600	400	4-φ18	150	8-φ22	245

Fault phenomena	Possible causes	Troubleshooting
1. The water pump does not discharge water	The water inlet valve is not opened, the inlet and outlet pipes are blocked, and the impeller flow path is blocked. The motor is running in the wrong direction, the motor is missing phase and the speed is very slow. Air leakage in suction pipe The pump is not filled with liquid and there is air in the pump chamber. Inlet water supply is insufficient, Suction Lift is too high, and bottom valve is leaking The pipeline resistance is too large and the pump selection is inappropriate.	Check and remove obstructions Adjust Motor steering and tighten Motor wiring Tighten each sealing surface and remove air Open the pump cover or open the exhaust valve to exhaust the air Shutdown inspection and adjustment Reduce pipeline bends and reselect pumps
2. Insufficient water pump flow	First, check for one reason. Pipes, pump flow channels or impellers are partially blocked, scale deposits... Voltage is low Impeller wear	Press 1 first to exclude Remove obstructions and readjust valve opening voltage stabilization Replace impeller
3. Power is too large	Use beyond rated flow Suction Lift is too high Pump bearing wear	Adjust Flow and close the outlet valve reduce Replace bearings
4. Noise and vibration	Pipeline support is unstable liquid mixed with gas cavitation Bearing damage Motor overload operation	Stable pipeline Increase suction pressure, exhaust Reduce vacuum Replace bearings Adjustment press 5
5. Motor fever	Flow is too large and overloaded local friction Motor bearing damage Insufficient Voltage	Turn off the outlet valve Check exclusions Replace bearings voltage stabilization
6. Water pump leaks	Mechanical seal wear The pump body has sand holes or cracks The sealing surface is uneven Loose mounting bolts	replace Welding repair or replacement Trim fasten

Selection Information Required

Please provide medium, concentration, flow, total head or pressure, temperature, viscosity or solids, voltage, frequency and installation method. DFIN Pump will confirm the suitable model and materials.

Catalog reference: authorized YZJ product data · Model GDL

SELECTION SUPPORT

Application-based pump selection

Send the liquid, flow, head or pressure, temperature, solids, installation, power supply and destination for a verified recommendation.

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