Glanded Pumps - THERMO-ECO-ENGINEERING úvod

Planning Guide
Anticipated noise levels for In-line and monobloc pumps
(Orientation values)
Motor power
P N [kW]
Sound-pressure level pA (dB) 1)
Pump with motor
1450 rpm 2900 rpm
< 0.55 52 55
000.75 53 58
001.1 54 58
001.5 54 61
002.2 57 62
003.0 58 64
004.0 58 67
005.5 63 70
007.5 64 71
011.0 67 74
015.0 68 75
018.5 67 76
022.0 67 77
030.0 69 78
037.0 68 74
045.0 68 74
055.0 68 78
075.0 70 80
090.0 70 80
110.0 72 82
132.0 72 82
160.0 72 82
1) Spatial mean value of sound pressure level on a square plate a distance of
1 m from the surface of the motor
Electrical pump drives
The rated power data and operating values for the electrical drives
presented in this catalogue for glanded pumps (Inline and monobloc)
apply at a rated frequency of 50 Hz, a rated voltage of 230 / 400 V to
3 kW or 400 / 690 V starting at 4 kW, a maximum coolant temperature
(KT) of 40°C and an installation altitude of up to 1000 m above
mean sea level.
For cases outside of these parameters a power rating reduction must
be applied or a larger motor or a higher insulation class must be
selected.
All Wilo glanded pumps are fitted as standard with electric motors,
which satisfy the IEC standard in terms of power and design. A
restriction only applies where, due to the design of the pump, coupling
to a standard motor is not possible. In this case motors with an
extended shaft are used.
The customary motor speed categories / operating speeds are as follows:
No. of poles 50 Hz 60 Hz
2 2900 rpm 3500 rpm
4 1450 rpm 1750 rpm
6 960 rpm 1150 rpm
High-efficiency motor
From a motor power of 1.1 kW Wilo glanded pumps can be supplied
to order with EFF1 high efficiency motors.
Application of explosion-protected pumps to directive
94/9/EG (ATEX100a)
Areas made hazardous by the risk of explosion are those, in which an
explosion-supporting atmosphere (gas / dust) can occur in sufficient
measure to present a risk.
These areas are divided into zones. Decisions on the assignment of
zones lie with the operator and the respective regulation authority.
The testing of pumps (machines) and hence the approval for use in
hazardous areas is governed in the EU on the basis of the relevant
explosion protection specification 94 / 9 / EG (ATEX100a) by appropriate
authorised test organisations. Approval is granted by means of
a prototype test certificate. Wilo glanded pumps of Series IL, DL, BL,
IPL (only variant –N), DPL (only variant -N), IPS and IPH can be supplied
with the appropriate approvals for use in potentially explosive
areas.
These pumps have a prototype test certificate in accordance with
directive 94 / 9 / EG (ATEX100a), which permits the following designations
to be applied:
II 2 G c b II A T3, T4 / II 2 G c b II C T3, T4
CE = CE Symbol
II = Equipment group
G = Ex-Atmospheres due to gases, vapours and mist
c = Design safety (Protection due to safe construction)
b = Ignition source monitoring with T4
T1-T4 = Temperature Class with maximum surface temperature
T1 = 450°C
T2 = 300°C
T3 = 200°C
T4 = 135°C
e / d = Ignition protection category of the motor
e = increased safety
d = pressure-resistant enclosure
Particular attention must be paid to ensure that for applications in
the temperature range T4 the pumps and mechanical seals are additionally
protected against dry running.
10 Subject to change without prior notice 09/2006 WILO AG