EDS6-122A FUJI [Fuji Electric], EDS6-122A Datasheet - Page 6

• Manufacturer Part Number: EDS6-122A
• Description: VORTEX FLOWMETER (DELTA FLOWPET)
• Manufacturer: FUJI [Fuji Electric]

6
Installation procedure [Fig. 3]
1. Length of straight pipe: Conforms to ISO 5167
Notes
1. The concept is intended for Sch.40 pipe. Therefore, use Sch.40 pipe as standard.
2. Be sure to provide a straight pipe section of 5D or more downstream.
3. Provide pressure and temperature detectors downstream the flowmeter (figure below).
2. Thermal insulation procedure
For thermal insulation of piping, we recommend you to
adopt a simplified thermal insulation (without mortar fin-
ish) on the flowmeter mounting section for facilitating dis-
assembly or checkup. This arrangement allows to loosen
flowmeter connecting bolts without breaking the thermal
insulating material covering.
FMR, M
No.
Arrange so connecting
bolts can be loosened
upon removing simplified
thermal insulation material.
1
2
3
4
5
Flow-in
direction
Fuji’s
regulating
pipe
Reducer
Elbow
Fully open
sluice valve
Half open
sluice valve
Piping status
Fully
open
Half
open
Flow straightener
Span
Honey vane L
2 to 4.5D
L
L
L
L
L
L
L
L
4 to 6.5D
Arrange so flange tightening
nuts can be loosened.
D: Nominal diameter
Simplified thermal insulation
(convenient if divisible)
Flow
Flow
Flow
Flow
Flow
Flow
Flow
Flow
Thermal insulation
of piping
Pressure tap
Temperature tap
straight pipe.
Length (L) of
D: Nominal
15D or more
23D
25D
40D
15D
50D
diameter.
12D
or more
or more
or more
or more
or more
8D
For nominal diameter 25 mm or more
(for details, contact us)
If coaxial reducer is located upstream
If elbow is located upstream
If 2 elbows are located horizontally
upstream
If 2 elbows are located vertically upstream
If fully open sluice valve is located
upstream
If half open sluice valve, abrupt restrictor,
or otherwise excessively flow disturbing
objects upstream
3. Considerations regarding process conditions
(1) Prevention of cavitation
If liquid is used, so that no cavitation will occur, secure a
line pressure higher than calculated by:
P 2.60
where,
P
(2) Pulsation
If the flowmeter is to be installed on a line where Roots
blower, compressor, or other pulsating pressure generat-
ing instruments are mounted, it may be affected by pulsa-
tion. The allowable pulsating pressure is calculated by:
where,
N: Pulsating pressure (kPa)
V: Minimum velocity (m/s)
: Density (kg/m
P: Pressure loss (MPa)
0
: Liquid vapor pressure (MPa [abs])
N <
P+1.25Po (MPa [abs])
Remarks
2.25 V
3
)
D = Nominal diameter.
100
2
(kPa)