FAURE HERMAN HELIFLU TZN, User Manual

Page: 10 / 20

Page 10 / 37
Recommended Strainer Size by Meter
Protection of turbine meter (and associated instrumentation) can be critical during new
installations start-up and when a system is restarted after heavy work upstream of the meter run.
To minimize the risk of solid particle injection upstream from the measurement point, we
recommend installation of a strainer with mesh sizes as listed in the table below:
TZN Model (CUS & STD)
Recommended
Filtration
TZN Model mm m
3
/h (max) inches BPH (max) (mm) MESH
TZN 16-012
TZN 16-025
16
0.12
0.25
1/2
0.75
1.5
0.15 100
TZN 20-05
TZN 20-01
20
0.5
1
3/4
3.1
6.3
0.355 45
TZN 25-2
TZN 25-3
TZN 25-5
TZN 25-10
25
2
3
5
10
1
13
20
30
63
0.425 40
TZN 32-8
TZN 32-12
TZN 32-15
TZN 32-20
32
8
12
15
20
1 1/4
50
75
94
126
0.5 35
TZN 40-8
TZN 40-12
TZN 40-15
TZN 40-20
TZN 40-40
40
8
12
15
20
40
1 1/2
50
75
94
126
250
TZN 50-30
TZN 50-50
TZN 50-70
50
30
50
70
2
190
320
440
0.85 20
TZN 80-70
TZN 80-110
TZN 80-150 80
70
110
150 3
440
690
943
1.4 14
TZN 100-200
TZN 100-300
100
200
300
4
1,260
1,890
1.7 12
TZN 150-400
TZN 150-600
150
400
600
6
2,520
3,770
2.36 8
TZN 200-800
TZN 200-1000
TZN 200-1200
200
800
1,000
1,200 8
5,030
6,290
7,550
2.8 7
TZN 250-1200
TZN 250-2000
250
1,200
2,000
10
7,550
12,600
3.35 6
TZN 300-2400
TZN 300-3000
300
2,400
3,000
12
15,100
18,900
TZN 350-3500 350 3,500 14 22,000
4 5
TZN 400-4000
TZN 400-4500
400
4,000
4,500
16
25,200
28,300
TZN 450-4800
TZN 450-5500
450
4,800
5,500
18
30,200
34,600
TZN 500-6000 500 6,000 20 37,800 4.75 4
IMPORTANT : After a period of critical monitoring, the filtration degree can be relaxed to reduce
strainer maintenance and pressure losses, e.g. MESH 6 to MESH 4 on a 12” meter (consult
manufacturer).
Page 31 / 37
ATEX Non electrical certification Data Table and Tag Example
The mechanical part is a non-electrical part as defined under the certificate LCIE 05 ATEX
6035X. This equipment is manufactured with a protective system as defined by European standards
NF EN 13463-1 and 13463-5 and is certified
II 2 G c T6 to T1 within fluid temperatures between -
50 and +350 °C (Table 1).
Table 1.
ATEX mark
II Group
Equipment for places with a potentially explosive atmosphere, other
than mines susceptible to firedamp.
2 Category
Equipment designed to be capable of functioning in conformity with
the operational parameters established by the manufacturer and
ensuring a high level of protection.
Equipment in this category is intended for use in areas in which
explosive atmospheres caused by mixtures of air and gases, vapors or
mists or by air/dusts mixtures are likely to occur.
The means of protection relating to equipment in this category
ensures the requisite level of protection, even in the event of
frequently occurring disturbances or equipment faults which are
normally taken into account.
G Gas/Dust Gas
c Type of protection Protection by constructional safety “safe by design”.
T6 85°C -50°C
≤
Fluid Temperature
≤
+80°C
T5 100°C
+80°C < Fluid Temperature ≤ +95°C
T4 135°C +95°C < Fluid Temperature ≤ +130°C
T3 200°C +130°C
<
Fluid Temperature
≤
+195°C
T2
300°C
+195°C < Fluid Temperature ≤ +290°C
T1 450°C +290°C < Fluid Temperature ≤ +350°C
NOTE: For models containing aluminum parts (rotor), fluid temperatures are limited from -50 to
+100°C
Complete unit ID plate
(mechanical & electrical)