Operating And Maintenance Manual; Introduction; Contents; Description And Use Of Motor-Driven Pump - EBARA EVM-Serie Benutzungs- Und Wartungshandbuch

OPERATING AND MAINTENANCE MANUAL PART 2
THE USER SHOULD KEEP THIS DOCUMENT

1. INTRODUCTION

This instruction manual is split into two booklets: PART 1,
containing general information regarding our whole product
range; and PART 2, containing information specifi c to the
motor-driven pump you have purchased. The two publica-
tions are complementary to each other, so make sure you
have both.
Comply with the instructions contained in them to get the
GB
most out of your motor-driven pump and assure its proper
operation. If you need further information, get in touch with
your nearest authorized dealer.
If information in the two parts contradict each other, take
PART 2 containing the product's specifi c information as valid.
NO PART OF THESE ILLUSTRATIONS AND/OR TEXT MAY BE
REPRODUCED FOR ANY REASON.
The following symbols have been used in the compilation of
this instruction booklet to make the reader aware of what
can happen if instructions are not complied with:
WARNING!
Risk of damaging the pump or system
Risk of causing injury or damaging property
Electrical hazard

2. CONTENTS

1. INTRODUCTION
2. CONTENTS
3. DESCRIPTION AND USE OF MOTOR-DRIVEN PUMP
4. WRAS EVM MOTOR-DRIVEN PUMPS
5. SPECIFICATIONS
6. PREPARING FOR USE
7. FILLING THE PUMP
8. STARTING AND RUNNING
9. MAINTENANCE AND REPAIR
10. TROUBLESHOOTING
11. DEMOLITION
12. TECHNICAL DOCUMENTATION SUPPLIED

3. DESCRIPTION AND USE OF MOTOR-DRIVEN PUMP

3.1. DESCRIPTION
The code EVM is used to identify a wide range of vertical multi-
stage pumps with in-line ports. Sized for seven nominal fl ow
rates (3, 5, 10, 18, 32, 45, 64 m
pumps come in various models with a different number of
stages to meet a wide variety of pressure requirements.
The code identifying the models is described in Chap. 12.4
together with the description of the rating plate.
3.2. USE FOR WHICH PUMPS ARE DESIGNED
These motor-driven pumps, with their sturdy construction,
assure long life and consistent performance if used accord-
ing to the instructions given in chap. 5.
They are used to handle clear and possibly moderately ag-
gressive liquids, even with quite high temperatures, and
other liquids compatible with the materials used (WRAS-type
EVM for drinking water).
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/h), the EVM motor-driven
3
3.3. USE FOR WHICH PUMPS ARE NOT DESIGNED
Pumps cannot be used to handle dirty water, water contain-
ing acids or bases and corrosive liquids in general, water
with temperatures higher than those mentioned in chap. 5,
saltwater.
They are not suitable for handling fl ammable and/or explo-
sive liquids either.
The motor-driven pumps must never be made to work with-
out liquid.

4. WRAS EVM MOTOR-DRIVEN PUMPS

The EVMW motor-driven pumps are WRAS approved.
Unlike standard EVM pumps, they feature materials specifi c
for pumping drinking water.
Before using the motor-driven pumps, run them with clean
water at the nominal fl ow rate, as follows:
EVMW3 60 minutes (minimum) EVMW18 15 minutes (minimum)
EVMW5 30 minutes (minimum) EVMW32 15 minutes (minimum)
EVMW10 30 minutes (minimum) EVMW45 15 minutes (minimum)

5. SPECIFICATIONS

5.1. PUMP SPECIFICATIONS
U.M.
Max. temperature of
°C
liquid pumped
Max. qty. / max. size
Ppm/mm 50 / 0,1 ÷ 0,25
of solids
Max. working
MPa
pressure
Delivery diameter
*
Suction diameter
* = threading according to ISO 228
5.2. MOTOR SPECIFICATIONS
U.M.
TYPE
IP rating IP
Max. starts
per hour
Insulation class and
temperature rise
Type of duty
Ratings
5.3. PUMP RATING PLATE
Chap. 12.5 features the aluminium rating plate applied to
EVM-series pumps and a description of the relevant num-
bers.
EVMW64 15 minutes (minimum)
EVM EVMW
-15 +120 ≤85
-
1.6 ÷ 3.0 See table in
chap. 12.3
G 1" ÷ Ø 100mm
EVM
T.E.F.C.
55
N.° kW
100 ≤ 0.55
60 0,75÷3,0
30 4÷9,2
15 11÷22
8 30÷37
F (classe B for
temperature rise)
Continuous S1
See motor rating plate