EBARA JEX Stainless Steel Self Priming Jet Pumps Owner’s Manual

EBARA JEX Stainless Steel Self Priming Jet Pumps

Introduction

Stainless steel jet pumps for the boosting or transfer of water, small scale irrigation, tank & pool emptying, etc. Suitable for installations with suction lift.

Specifications

• Maximum working pressure : 6 bar
• Maximum liquid temperature : 45°C

Materials

• Pump casing : 304 Stainless Steel
• Impeller : 304 Stainless Steel
• Jet & Diffuser: Noryl
• Shaft : AISI 303 (in contact with liquid)
• Bracket : Aluminium
• Motor Frame : Aluminium
• Mechanical Seal : Carbon/Ceramic/NBR

Motor Data

• TEFC, 2 pole motor
• Insulation class F
• IP55 protection
• 1Ø, 230~240 Volt, 50 Hz
• Permanent split capacitor
• Automatic thermal overload protection

Supply

• 1.8 m cable with 3 pin plug
• Available as pressure system with pressure switch or Press control ®

TYPICAL EXPLODED VIEW

PUMP AND MOTOR

PUMP

Liquid Handled| Type of liquid| Clean water
Max temperature| [°C]| 45
Maximum working pressure| [MPa]| 0.6
Maximum suction depth| [m]| 8
Construction| Impeller| Closed centrifugal type
Shaft seal type| Mechanical seal
Bearing| Sealed ball bearing
Pipe Connection| Suction| [inch]| G 1¼ UNI ISO 228
Discharge| [inch]| G 1| UNI ISO 228
Material| Casing| AISI 304
Impeller| AISI 304
Shaft seal| Ceramic/Carbon/NBR
Casing cover| AISI 304
Shaft| AISI 303 (Wet extension)
Bracket| Aluminium
Ejector| PPO mod. glass fibre reinforced
Diffuser| PPO mod. glass fibre reinforced
Applicable standard of test| ISO 9906 – Annex A
MOTOR

Type| Electric – TEFC
Single Phase
No. Of Poles| 2
Synchronous speed [min-1]| 3000
Insulation Class| F
Protection degree| IP 55
Power rating| [kW]| 0.6 ÷ 1.1
[HP]| 0.8 ÷ 1.5
Frequency                                       [Hz]| 50
Voltage                                            [V]| 230 ±10%
Capacitor| Built in
Over load protection| Built in
Casing material| Aluminium
Base material/motor support| Aluminium
Dimensions of cable entry| PG11 – PG13.5 (see dimensions page 400)

SELECTION CHART

Curve specifications
The specifications below qualify the curves shown on the following pages.
Tolerances according to ISO 9906 Annex A
The curves refer to effective speed of asynchronous motors at 50 Hz
Measurements were carried out with clean water at 20°C of temperature and with a kinematic viscosity of n = 1 mm2/s (1 cSt)
In order to avoid the risk of over-heating, the pumps should not be used at a flow rate below 10% of best efficiency point.
Symbols explanation:
Q = volume flow rate
H = total head

TYPE KEY

PERFORMANCE CURVE

• JEXM 80 (0.6 kW)
  
  Impeller diameter= 132 mm
  Applicable standard of test: ISO 9906 – Annex A

• JEXM 120 (0.88 kW)
  
  Impeller diameter= 141 mm
  Applicable standard of test: ISO 9906 – Annex A

• JEXM150 (1.1 kW)
  
  Impeller diameter= 141 mm
  Applicable standard of test: ISO 9906 – Annex A

CONSTRUCTIONS

N o .| PART NAME| MATERIAL| QTY| N o .| PART NAME| MATERIAL| QTY
---|---|---|---|---|---|---|---
1| Casing| AISI 304 Stainless Steel| 1| 22| Tie rod| Fe 420 Zincate| 4
3| Motor bracket| Aluminium| 1| 23| Capacitor| –| 1
4| Casing cover| AISI 304 Stainless Steel| 1| 24| Priming/Drain plug| PA| 2
6| Shaft with rotor| AISI 303 S/Steel     (Part in contact with liquid)| 1| 26| O-ring| NBR| 1
7| Impeller| AISI 304 Stainless Steel| 1| 28| O-ring| NBR| 1
9| Diffuser Venturi tube| PPE + PS glass fibre reinforced| 1| 32| Impeller Key| AISI 304 Stainless Steel| 1
11| Mechanical seal| Carbon/Ceramic/NBR| 1| 34| Impeller Nut| AISI 304 Stainless Steel| 1
12| Motor frame with stator| –| 1| 42| Motor Support| Aluminium| 1
13| Motor cover| Aluminium| 1| 43| Space diffuser| PPE + PS glass fibre reinforced| 1
14| Fan| PA| 1| 52| Terminal l Box| ABS| 1
15| Fan cover| Fe P04 Zincate| 1| 56| Box gasket| NBR| 1
16| Terminal block| –| 1| 77| O-ring| NBR| 2
17| Terminal box cover| ABS| 1| 90| Cover Gasket| NBR| 1
18| Splash ring| NBR| 1| 92| Lip Seal| –| 1
19| Pump side ball bearing| –| 1| 93| Lip Seal| –| 1
20| Fan side ball bearing| –| 1| 110| Motor protector| –        (Only for JEXM 150)| 1
21| Adjusting ring| Steel C70| 1| 200| Screw| Stainless steel A2 UNl7323| 8

MECHANICAL SEAL

DIAGRAM AND ELECTRIC CONNECTIONS

**SINGLE PHASE MOTOR

**

DIMENSIONS

PACKING AND WEIGHT

TECHNICAL DATA – MOTOR AND BEARINGS

Type pumps Single Phase
230 V
50 Hz| kW| HP| Capacitor| Input [kW]| Full load current [A]| Locked rotor current [A]
---|---|---|---|---|---|---
µ F| Vc
JEXM 80| 0.6| 0.8| 16| 450| 1.05| 4.7| 16.1
JEXM 120| 0.88| 1.2| 20| 450| 1.39| 6.7| 22.7
JEXM 150| 1.1| 1.5| 31.5| 450| 1.70| 7.6| 32.5
Type pumps| Ball Bearing
---|---
Pump side| Fan side
JEXM 80| 6203 2DW C3| 6202 2DW C3
JEXM 120| 6203 ZZ C3| 6202 ZZ C3
JEXM 150| 6204 ZZ C3| 6203 ZZ C3

PUMP INSTALLATION

Install a foot valve or check valve in the suction pipe. Support the suction and delivery pipe to prevent damage to the pump casing.

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