FFI SYSTEM
DIFFERENTIAL PRESSURE DEVICE
ORIFICE PLATE WITH CARRIER RINGS
DATA SHEET
FVA
This orifice plate is widely used for measuring liquid,
steam, and gas in low or medium pressure, lines. Tapping
of differential pressure is done by comer tap method with
differential pressure tapping rings having CARRIER RINGS.
One set is composed of differential pressure tapping rings,
an orifice plate, and a gasket. CARRIER RINGS are installed
to average the differential pressure inside the rings.
SPECIFICATIONS
Type:
Corner taps
Calculation standard:
According to concentric edge
JIS Z 8762-1995 (ISO 5167-1:1991)
Nominal pipe size: 25A to 300A
These orifice plates with CARRIER
RINGS can be supplied for nominal pipe
sizes up to 1000A. Type FVB orifice plate
is recommended for sizes 400A and
above.
Materials of main elements:
Ring;
SS400, SF440A, SUS304,
SUS316 or PVC
Orifice plate; SUS304, SUS316 or PVC
Differential pressure tapping pipe;
ST P G 3 7 0 , S U S 3 0 4 o r
SUS316
Differential pressure outlet flange;
SS400, SF440A, SUS304 or
SUS316
Gasket:
Valqua (Refer to table 1)
Mount direction: Horizontal
Vertical (Down to up)
Vertical (Up to down)
Please specify in the specification
sheet.
< Table 1 >
Type
Application
Rating (about)
No. 6500AC
(Non-asbestos)
General use
3MPa, 100°C
No. 7020
(Teflon)
For no oil treatment 1.5MPa, 200°C
Connection method:
Connection flange;
JIS 5, 10, 20, 30K
ANSI 150, 300, 400Lb
Use single-part orifice plate (type
FVE) for flange standard of JIS 40K,
ANSI 600Lb or higher.
Operating conditions:
Max. pressure; 3Mpa {30.59kgf/cm2} or
less
Temperature range; −10 to 300°C
(depends on the kind of fluid)
Differential pressure outlet size:
R1/2
JIS 15A welded type
Flange standard; JIS 5K 15A RF
JIS 10K 15A RF
JIS 20K 15A RF
JIS 30K 15A RF
No. GF300
For high temp. high
3MPa, 230°C
(Graphite compound) press. *
No. 6590T
(Pure graphite)
For high temp. high
20MPa, 400°C
press. *
*Non-standard
EDS6-50i
Date
Apr. 1, 2011
FVA
CODE SYMBOLS
1 2 3 4 5 6 7 8
F VA
9 10 11 12 13
Description
2 -
Nominal pipe diameter (A)
0 0 2 5
to
0 3 0 0
Enter pipe diameter in 4th to 7th digits
0
Application
General use
S
W
(3) V
Material of orifice plate
SUS304
SUS316
PVC
Notes:
(1) Combination of orifice plates and rings
Orifice plate
S
W
V
E
Ring
F
(2)
S
W
V
(3)
E
F
S
W
V
(2) With ring material SS400:
Pressure rating for (pipe) flange ≤ 10K
Working temperature ≤ 300°C
(3) With ring material PVC:
Working pressure ≤ 2K
Working temperature ≤ 50°C
(4) Designate material SUS304 or SUS316
(code S or W) for orifice plates and rings
Material of ring
Material of differential
pressure tapping pipe
SS400
SF440A
SUS304
SUS316
PVC
STPG
STPG
SUS304
SUS316
PVC
Flange standard
JIS 5K
JIS 10K
JIS 20K
JIS 30K
ANSI 150Lb
ANSI 300Lb
ANSI 400Lb
Other flange standard
P
J
K
L
A
B
C
Z
in case of “No oil treatment”.
Y
B
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
(4) A
V
W
X
C
2
Treatment
Differential pressure outlet size
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
No oil
treatment
No oil
treatment
No oil
treatment
No oil
treatment
No oil
treatment
R1/2
φ21.7mm welded type
Flange JIS 5K (SS400)
Flange JIS 10K (SS400)
Flange JIS 20K (SS400)
Flange JIS 30K (SS400)
Flange JIS 5K (SF440A)
Flange JIS 10K (SF440A)
Flange JIS 20K (SF440A)
Flange JIS 30K (SF440A)
Flange JIS 5K (SUS304)
Flange JIS 10K (SUS304)
Flange JIS 20K (SUS304)
Flange JIS 30K (SUS304)
Flange JIS 5K (SUS316)
Flange JIS 10K (SUS316)
Flange JIS 20K (SUS316)
Flange JIS 30K (SUS316)
R 1/2
Flange JIS 5K (SUS304)
Flange JIS 10K (SUS304)
Flange JIS 20K (SUS304)
Flange JIS 30K (SUS304)
OUTLINE DIAGRAM (Unit: mm)
Nominal pipe
diameter (A)
φA
5K
10K
20K
30K
e
W
T
P
25
63
71
71
76
0.2~0.4
65
2
33
32
75
81
81
86
0.3~0.5
65
2
33
40
80
86
86
97
0.3~0.5
65
2
33
50
90
101
101
111
0.5~0.8
65
2
33
65
115
121
121
137
0.5~0.8
66
3
34
80
126
131
137
147
0.5~0.8
66
3
34
90
136
141
147
160
0.5~0.8
66
3
34
100
146
156
162
170
0.8~1.2
66
3
34
125
181
187
200
205
0.8~1.2
66
3
34
150
211
217
235
248
0.8~1.2
66
3
34
200
257
267
280
293
1.5~2.0
67
4
35
250
322
330
353
357
4
67
4
35
300
367
375
403
417
4
67
4
35
3
FVA
ORDERING INFORMATION
1. Code symbols
2. Kind, composition and density of fluid
3. Temperature, pressure, relative humidity and viscosity
(heat insulation index for gas) of fluid
4. Flow rate (maximum, normal, minimum)
5. Instrument scale
6. Inside diameter (measured value) and material of piping
7. Type and maximum differential pressure (for existing
instrument) of transmitter to be connected
8. Size of pipe flange for insertion of orifice
9. Permanent pressure loss and other restricted items
(When ordering, please specify the above items in the specification sheet.)
Caution on Safety
*Before using this product, be sure to read its instruction manual in advance.
International Sales Div
Sales Group
Gate City Ohsaki, East Tower, 11-2, Osaki 1-chome,
Shinagawa-ku, Tokyo 141-0032, Japan
http://www.fujielectric.com
Phone: 81-3-5435-7280, 7281 Fax: 81-3-5435-7425
http://www.fjielectric.com/products/instruments/
Information in this catalog is subject to change without notice.
Printed in Japan