7.0 WARRANTY
The warranty conditions agreed with the manufacturer at the time of the supply apply.
For damage caused by:
•Improper use of the device;
•Failure to observe the requirements described in this document;
•Failure to observe the regulations pertaining to installation;
•Tampering, modification and use of non-original spare parts;
are not covered by the rights of the warranty or compensation for damage.
The warranty also excludes maintenance work, the assembly of devices of other manufacturers, making changes to the device
and natural wear.
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
• P. max = Maximum pressure at which product operation is guaranteed
• PS = Allowable maximum pressure
• Filtering = Filtering
• TS = Temperature range within which product operation is guaranteed
• = Compliance with (EU) Regulation 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
9.0 FILTER SIZING EXAMPLE
Usage data
Qn= 1210 [Nm3/h] Methane
Pi= 1.2 [bar]
To use the diagram, you have to convert the usage
data to the diagram conditions (P1=0) and vice versa.
Conversion to the flow rate at the diagram conditions:
Choosing the filter diameter:
• Identify the Qdflow 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 32);
• From this newly identified point, move left until you cross the graph axis and read the ΔPd
Converting the ΔPd measured on the diagram at the system conditions:
Qd[Nm3/h] = = = 550 [m3/h]
Qn [Nm3/h] 1210 [Nm3/h]
Pi+ 1 [bar] 1.2 + 1 [bar]
Maximum flow rates in m3/h of methane gas considering a max flow speed through the pipes of 20 m/s
DN 65 DN 80 DN 100 DN 125 DN 150 DN 200 DN 250 DN 300
244 m3/h 370 m3/h 578 m3/h 903 m3/h 1300 m3/h 2312 m3/h 3613 m3/h 5203 m3/h
ΔPr[mbar] = ΔPd[mbar] x (Pi+ 1) [bar] = 6.5 [mbar] x (1.2 + 1) [bar] = 14.3 [mbar]
• Follow the same procedure in the diagrams on pages 32 and 33 to calculate the pressure drop of the filters to the various
filtering points (50 µm -20 µm -10 µm).
KEY
Qn: Usage flow rate [Nm3/h]
Qd: Flow rate at the diagram conditions [m3/h]
Pi: System pressure
ΔPd: ΔP measured on the diagram
ΔPr: ΔP normalised to the system condition
P1 : Diagram tracing pressure
7 8 9 : ; < 7 = > ? @ @
A B C D E F G E @ H @ C B >E? I J : K L M N J O N I P L Q
< R S T U Q R V W ; E@ K R X Q 8 V Y O ; C Z @ [ H @ \ A
]
U L Q ; ? @ E ^ _ 8 T ; ` E ^ E ? H I a Z b @@@@E
ccde
c f g h
