8/22
NT 1401-X00 10 18 B200 Flow Control e
2.3 Operating ranges
The operating ranges specified in the § TECHNICAL
CHARACTERISTICS give the conditions that must be
respected on mounting and packaging of the B200 com-
pressors, in order to be able to benefit from the guaran-
tees for these pieces of equipment.
The MOUVEX relief valve is designed in order to release
any potential overflow. A speed reduction is therefore
needless otherwise to increase the machine temperature.
We recommend to set a single working point corres-
ponding to the maximum speed of the compressor,
which allows an optimal cooling. This operating
point (otherwise the range) must be absolutely fixed
by the Motor management in order to avoid any use
outside theses limits. See § MOTOR MANAGEMENT.
MAXIMUM ACCEPTABLE DISCHARGE PRESSURE
(see §
TECHNICAL CHARACTERISTICS)
The Check Relief Valve (CRV) is available with the setting
2 bar, 2,3 bar and 2,5 bar.
It is necessary to select the required value depending on
the limits of the tank, the position of the CRV and the value
of the pressure losses so that the maximum pressure at
the compressor is controlled.
The CRV is assembled and tested by us, its opening
pressure at full flow (closed discharge valve) may fluc-
tuate slightly based on the following parameters :
• Dimensional dispersion associated to the tolerances
of components.
• When the CRV is cold, it generates a greater pressu-
re of 0,15 bar.
• The opening of valves naturally generates pressure
losses, pressure at full flow is therefore increased.
As a result, a hot CRV can reach in full flow a pressure
greater than its value of calibration in the range of 0,35
bar maximum. A 2,5 bar CRV is therefore likely to reach
2,85 bar in full flow.
The operating mode with a closed valve (no unloading flow)
is therefore allowed only intermittently (less than 1 min),
whatever the type of relief valve used. In this case, the full
flow goes out and generates an unnecessary pressure rise.
The result is an overheating of the compressor and poten-
tially irreversible damages not covered by our warranty.
2. GENERAL DATA (continued)
81,0
83,0
85,0
87,0
89,0
91,0
93,0
95,0
97,0
99,0
101,0
0
20
40
60
80
100
120
140
160
180
200
0,00
0,50
1,00
1,50
2,00
2,50
3,00
Pr
es
si
on ac
ous
ti
que
à/
Acous
tic
pr
es
su
re
a
t
1 m (d
BA)
Dé
b
it Disp
o
n
ib
le
B200
/Ava
ila
b
le
B200
Fl
o
w
ra
te
(
m3/h
)
Pression entrée CRV double/
Double CRV inlet pressure
(bar)
B200 Flow Control 2
͕
0 bar :
Débit et pression acoustique/Flow rate and acoustic pressure
Aspiration Compresseur/Compressor
suction
1 atm 20°C
Mesure débit selon/
Flow measurement
: ISO 5162-2
Mesure bruit/
Noise measurement
: 1m de la CRV; 1.5 m du compresseur/ 1 m from the CRV; 1.m from the compressor
