Principle: EMCO Meter Run type CompaQ is used as primary element in flow measurement of liquid, gas and steam according to the differential pressure principle. The differential pressure transmitter and 3 way manifold valve is mounted directly on the CompaQ ensuring an faster and more safe installation on site
DN |
Inches |
Total length (mm) |
---|---|---|
10
|
3/8”
|
400 mm
|
15
|
½”
|
550 mm
|
20
|
¾”
|
700 mm
|
25
|
1”
|
900 mm
|
32
|
1 ¼”
|
1100 mm
|
40
|
1 ½”
|
1300 mm
|
50
|
2”
|
1500 mm
|
Design and calculation standards
|
ISO 5167, ISO/TR 15377, BS 1042, ASME MFC-14M, MFC-3M, DIN 19205 Shell Flow Meter Engineering Handbook
|
Sizes
|
DN 10 – DN 50, 3/8” - 2"
|
Pressure rating
|
PN 10 - 400, 150 - 2500 lbs
|
Plate thickness
|
3 mm
|
Vent or drain hole
|
Not recommended
|
β (d/D)
|
preferred range 0,5 < β < 0,7 for highest accuracy
|
Plate Material
|
AISI 316, other on request.
|
Carrier ring and pipe material
|
Carbon steel, AISI 316, other materials on request
|
Pipe run
|
Can be honed for increased accuracy
|
Pressure taps
|
Transmitter flanges with a 54 mm centre distance
|
Connection
|
Weld ends or flanges with flat or raised face or groove according to DIN 2526, 2513 or 2512, or RF and RTJ according to ANSI B 16.5
|
Orifice plate shapes
|
Square edge concentric, other shapes on request. Orifice plates are bevelled on the downstream side
|
Marking
|
The orifice plate is marked with "+" and"-" and flow direction.
|
Accuracy
|
+/- 0,75 - 1 %(square edge plate), +/- 2 %(conical), +/- 2 - 2,5%(¼ circle)
|
Pressure loss
|
Depending on β, for β equal to 0,6 : ca. 60 % of the differential pressure measured
|
Limits for Reynolds No
|
Re > 1260 x β^2 D according to ISO 5167 1000 < Re < 10^8 according to ASME MFC-14M
|
Accessories |
|
---|---|
3 valve manifold - double flanged, Condensing chamber unit for steam flow (only horizontal pipe line)
|
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