Madas FM-FGM, Техническое руководство, Страница: 13 / 44

13
IT
EN
FR
ES
FM-FGM Madas Technical Manual - 6|6.2 - REV. 0 of 10
th
Oct 2018
8.0 - RATING PLATE DATA
The rating plate data (see example provided here) includes the following:
• Manufacturer’s name/logo and address (possible distributor name/logo)
• Mod.:
= device name/model followed
by the connection diameter
• CE-51AR1070 = certification pin number
• EN 126 = Product reference regulation
• PS max = Maximum pressure at which product operation is guaranteed
• Filtering = Filtering
• (-40...+70) °C = Temperature range within which product operation is guaranteed
•
= Conformity with Regulation (EU) 2016/426 followed by Notified Body No.
• = In compliance with PED directive followed by the no. of the Notified Body
• year = Year of manufacture
• Lot = Product serial number (see explanation below)
• U1812 = Lot issued in year 2018 in the 12th week
• 7634 = progressive job order number for the indicated year
• 00001 = progressive number referring to the quantity of the lot
Mod.: FM DN 50
CE-51AR1070 - EN 126 PS max: 6 bar
Filtering: 50 micron (-40...+70) °C
year: 2018 Lot:U1812 7634/00001
0051
0497
9.0 - FILTER SIZING EXAMPLE
Usage data
Q
n
= 270 [Nm
3
/h] Methane
P
i
= 2.6 [bar]
To use the diagram, you have to convert the usage
data to the diagram conditions (P
1
=0) and vice versa.
• Conversion to the flow rate at the diagram conditions:
• Choosing the filter diameter:
• Identify the Q
d
flow rate on the Gas line used and go up with a vertical line until you cross the straight line for the selected diameter
(see example diagram on page 48);
• From this newly identified point, move left until you cross the graph axis and read the ∆P
d
• Converting the ΔP
d
measured on the diagram at the system conditions:
Q
d
[Nm
3
/h] = = = 75 [m
3
/h]
Q
n
[Nm
3
/h] 270 [Nm
3
/h]
P
i
+ 1 [bar] 2.6 + 1 [bar]
Maximum flow rates in m
3
/h of methane gas considering a max flow speed through the pipes of 20 m/s
DN 15 DN 20 DN 25 DN 32 DN 40 DN 50
13.0
m
3
/h
23.1
m
3
/h
36.1
m
3
/h
59.2
m
3
/h
92.5
m
3
/h
145
m
3
/h
∆P
r
[mbar] = ∆P
d
[mbar] x (P
i
+ 1) [bar] = 1.5 [mbar] x (2.6 + 1) [bar] = 5.4 [mbar]
• Follow the same procedure in the diagrams on pages 49, 50 and 51 to calculate the pressure drop of the filters to the various
filtering points (50 µm -20 µm -10 µm).
KEY
Q
n
: Usage flow rate
[Nm
3
/h]
Q
d
: Flow rate at the diagram conditions
[m
3
/h]
P
i
: System pressure
∆P
d
: ∆P measured on the diagram
∆P
r
: ∆P normalised to the system condition
P
1
: Diagram tracing pressure