B-144-12-E
43
16. GENERAL SPECIFICATIONS
16.1 Basic Meter
Item
Meter Size
50
52
53
55
56, 57
Nominal Diameter
20mm
25 mm
40mm
50mm
Flange Ratings
1
JIS 10K RF, ASME 150 RF, JPI 150 RF
3
JIS 16, 20, 30K RF, ASME 300 RF, JPI 300 RF, DIN 10, 16, 20, 25
Operating Temperature Range
※
−
60
℃
to
+
60
℃
(low temp. service),
+
120
℃
to
+
260
℃
(high temp. service)
Accuracy
±
0.5 % and
±
0.2 %
Meter Body
SCS14 or SCS16
Wetted Parts Rear Cover
SUS316 or SUS316L
Materials
Rotors
SUS316 or SUS316L
Bearings
Special carbon or ceramics
Shafts
SUS316 or SUS316L
Flow Direction
Right
→
Left (standard), Left
→
Right, Top
→
Bottom, Bottom
→
Top
External Finish
Meter body and rear cover: Left uncoated Adapter: Coated
NOTE
※
: Size 50 meter for high temprature service has an allowrable range of
+
120
℃
to
+
200
℃
.
l
Max. Operating Pressure of Major Flange Group
MPa
Flange Code
JIS 10K RF
ASME 150 RF
JIS 20K RF
JIS 30K RF
ASME 300 RF
1
1.18 at 120
°
C
1.50 at 120
°
C
..........
..........
..........
3
..........
..........
1.96 at 120
°
C
2.94 at 120
°
C
2.94 at 120
°
C
l
Nominal Meter Factors
Size
P/r
Nominal Meter Factor, mL/P
50
4
4.968
52
4
9.664
53
4
17.513
55
4
34.60
56
4
74.66
57
4
196.08