JMZ Stainless Steel Self-Priming Pump/ Pump

Reference image. Final construction follows the confirmed model and quotation.

Self-Priming Pumps

JMZ Stainless Steel Self-Priming Pump/ Pump

Name: JMZ Stainless Steel Self-Priming Pump/ Pump
Brand: DFIN PUMP
SKU: JMZ

Model: JMZ

JMZ Stainless Steel Self-Priming Pump/ Pump is designed for tank unloading, drainage, irrigation and industrial liquid transfer. 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

JMZ Stainless Steel Self-Priming Pump/ Pump is an industrial self-priming pump selected for tank unloading, drainage, irrigation and industrial liquid transfer. The final configuration should be verified against the actual liquid, duty point, temperature, installation and power supply.

Typical Applications

Tank unloading, drainage, irrigation and industrial liquid transfer.

Design Features

Self-priming operation
Simple pipework arrangement
Easy inspection and maintenance
Model and material selection supported by DFIN Pump engineers

Extracted Operating Data

３m3/h-100m3/h 18m-14m 25mm-150mm

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

Technical Performance Data

Model	Port Size（mm)		Flow（m3/h)	Head（m）	Suction Lift（m）	Motor（kw）	Rotation (r/min)	Model
Model	Inlet	Produced	Flow（m3/h)	Head（m）	Suction Lift（m）	Motor（kw）	Rotation (r/min)	Model
25JMZ-22	25	25	3	22	5	1.1	2900	25JMZ-22
25JMZ-30	25	25	3	30	6	1.5	2900	25JMZ-30
40JMZ-22	40	25	6	22	5	1.5	2900	40JMZ-22
40JMZ-30	40	25	6	30	6	2.2	2900	40JMZ-30
40JMZ-40	40	25	6	40	6	3	2900	40JMZ-40
50JMZ-22	50	40	12	22	5	2.2	2900	50JMZ-22
50JMZ-30T	50	50	20	30	6	4	2900	50JMZ-30T
50JMZ-40	50	40	12	40	6	4	2900	50JMZ-40
65JMZ-22	65	50	24	22	5	4	2900	65JMZ-22
65JMZ-30T	65	65	30	30	6	5.5	2900	65JMZ-30T
80JMZ-22	80	65	48	22	5	7.5	2900	80JMZ-22
80JMZ-30	80	65	48	30	5	7.5	2900	80JMZ-30
125JMZ-18	125	100	100	18	5	15	2900	125JMZ-18

Model	Equipped with MotorKW	L	L1	L2	L3	L4	B	B1	B2	B3	H	H1	H2	H3	D1	D2	D3	D4	n×ø d		d1		d2
Model	Equipped with MotorKW	L	L1	L2	L3	L4	B	B1	B2	B3	H	H1	H2	H3	D1	D2	D3	D4	n	ø	quantity	ø	quantity	ø
25JMZ-22	1.1	670	400	115	265	110	260	215	215	150	110	234	120	200	100	75	100	75	4	12	4	12	4	12
25JMZ-30	1.5	700	430	130	264	107	280	240	240	155	130	282	107	210	100	75	100	75	4	14	4	12	4	12
40JMZ-22	1.5	720	430	140	273	118	280	240	240	155	130	265	124	225	130	100	100	75	4	14	4	14	4	12
40JMZ-30	2.2	730	430	132	268	113	280	240	240	155	130	280	123	237	130	100	100	75	4	14	4	14	4	12
40JMZ-40	3	820	500	128	320	120	330	290	240	180	132	305	127	250	130	100	100	75	4	14	4	14	4	12
50JMZ-22	2.2	760	430	151	282	127	280	240	240	155	130	280	143	232	140	110	130	100	4	14	4	14	4	14
50JMZ-30T	4	860	510	138	315	135	330	290	290	190	132	283	135	228	140	110	140	110	4	14	4	14	4	14
50JMZ40	4	860	510	140	316	119	335	290	290	190	132	321	135	262	140	110	130	100	4	14	4	14	4	14
65JMZ22	4	875	510	163	335	135	360	290	290	190	132	305	148	250	160	130	140	110	4	14	4	14	4	14
65JMZ30T	5.5	980	620	150	356	138	380	320	320	210	132	310	153	252	160	130	160	130	4	14	4	14	4	14
80JMZ22	5.5	980	620	150	340	160	380	320	320	210	132	305	160	250	190	150	160	130	4	14	4	17.5	4	14
80JMZ30	7.5	980	620	150	340	160	380	320	320	210	132	315	160	255	190	150	160	130	4	14	4	17.5	4	14
100JMZ22	11														210	170	190	150	4	18	4	17.5	4	17.5
100JMZ30	15														210	170	190	150	4	18	4	17.5	4	17.5
150JMZ22	15														265	225	240	200	4	18	8	17.5	8	17.5
150JMZ30	22														265	225	240	200	4	18	8	17.5	8	17.5
200JMZ22	18.5
200JMZ30	30

Fault

Causes

Troubleshooting

No fluid leakage

1. The pump is not filled with starting fluid.

2. Abortion blockage in the suction pipe, pressure pipe or pump

3. Air leakage in suction pipe

4 The suction height exceeds the allowable range

5. Using Head exceeds designing Head.

6Convey hot and volatile media

7The steering is reversed

8 Mechanical seal leaks

1. Refill the liquid. There is no need to fill the liquid when starting the second time.

2Remove debris

3Inspect and replace the suction pipeline

4Reinstall the pump according to the allowable suction height

5Reselect the pump

6. Lower the Suction Lift or install it with reverse irrigation.

7 Correct steering

8. Repair or replace mechanical seal

Long self-priming time

1The liquid temperature is too high

2 The suction pipe is too long

3Inlet pipes have Ω-shaped bends

4Outlet submerged in liquid

1The liquid temperature drops below 40 degrees

2. Keep the pipeline as short as possible

3Remove all omega pipes

4 Connect Outlet to the atmosphere

Flow is not enough

1 The suction pipe is not soaked deep enough

2. The suction pipe is too thin or blocked by debris.

3 The impeller is severely worn or corroded

4. The sealing ring is corroded after severe wear.

5 The gap between the impeller and the pump cover is too long

1Increase the immersion depth of the suction pipe

2Replace appropriate pipelines and remove debris

3Replace with new impeller

4Replace with new sealing ring

5 Reduce gaps

Head is not enough

1 The impeller is severely corroded

2Motor mismatch

3. The gap between the impeller and the pump cover is too long

1Replace with new impeller

2Replace Motor

3 Reduce gaps

Bearing overheating

1Insufficient or too much lubricating oil

2 The pump shaft and the Motor shaft are not concentric

3 bearing damage

4. Bearing quality does not match

1 Lubricating oil should cover 30-40% of the seal cavity

2Adjust to make the pump shaft and Motor shaft concentric

3Replace with new shaft

4. Reduce noise bearings

Severe vibration

1. The pump shaft and motor shaft are not concentric.

2 Pump shaft bent

1Adjust to make the pump shaft and Motor shaft concentric

2 Re-change the axis

seal leakage

1Insufficient spring pressure

2 The moving or stationary ring end is corroded, worn or scratched

3. Corrosion and deformation of dynamic ring seal ring

4. Foreign matter or medium crystallization affects the main movement of the moving ring.

1Adjust the spring compression or replace the spring

2Repair or replace the moving or static ring

3Replace the ring seal

4. Remove foreign matter or crystallization of media

Motor overheating

1. The specific gravity of the liquid or the temperature is too high

2. The mechanical seal spring is adjusted too tight.

3Voltage is too low

4. The assembly quality is poor, some parts are rubbing or the motor and pump shaft are not concentric.

1 Increase Motor

2Re-adjust the spring compression amount

3Increase Voltage

4 Inspection of assembly quality and failure of assembly

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 JMZ

SELECTION SUPPORT

Application-based pump selection

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

Discuss this application