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ORIPAC MODEL 5300

About the Oripac Model 5300 Dimension Sheet Tech Support Sheet
Part No. Reference System Specification Sheet Installation Instructions
MODEL 5300 TECH SUPPORT SHEET

The importance of proper pressure tap connections for orifice plate installations is often minimized or overlooked in the field. Faulty connections nullify the precision of the machining in the manufacture of the orifice plate and calibration accuracy of the secondary instrument. An ORIPAC, properly installed, will provide satisfactory, low-cost service over a wide capacity range.

Lambda Square, Inc. has developed the ORIPAC to combine accuracy of measurement with certainty of correct installation.


The many advantages in their installation and operation clearly indicate the superiority of the ORIPAC for the majority of conditions under which an orifice installation is suitable.
HEAD LOSS:

Overall Pressure Loss Across
Thin-Plate Orifices

The above curved graph shows pressure loss generated by the ORIPAC. For example, a 0.6 Beta Ratio (d/D) would show a loss of 62%. This is also shown on the linear graph area ratio (d/D) =.38 with a loss of 62%.

As a quick check reference, you can use the formula:
Headloss=1-Beta Ratio eg: 1-.62 or 1 - .38 = 62% of the differential pressure.

Source: ASME Research Report on Fluid Meters

MODEL 5300

ACCURACY...
The ORIPAC utilizes the corner tap proportions as defined in ISO 5167. The ASME Fluid Meters Research Committee has suggested that the dimensionless coefficient equation developed by the International Standards Organization (ISO) and presented in ISO 5167 is significantly better for the broad spectrum of flow measurement applications throughout process industries.

The coefficient values used in the ORIPAC bore calculations represent the same confidence level assigned to the flange and radius taps widely accepted in fluid flow measurement.

The accuracy assigned to the coefficient values is ± 0.6% full scale flow for d/D (Beta) values 0.2 to 0.6 and ± ß% for Beta values 0.6 to 0.75 (i.e. ß of 0.7 would have an uncertainty value of ± 0.7% full scale flow).

Accuracy of the differential signal produced by the ORIPAC equals or exceeds that of a properly manufactured and installed flange or radius tap orifice meter.

ORIPAC CAPACITY REFERENCE
(WATER AT 60ºF) STD SCH PIPE

Line Size
(Inches)

Inches
of Water
Differential

Maximum Full Scale Flow Rate

In GPM

Beta Ratio

 
1"
 
1-1/4
 
1-1/2
 
2
 
2-1/2
 
3
 
4
 
5
 
6
 
8
 
10
 
12
 
14
 
16
 
 
20"
320
20
320
20
320
20
320
20
320
20
320
20
320
20
320
20
320
20
320
20
320
20
320
20
320
20
320
0.23 0.75
0.80 10.5
3.20 42
1.20 13
5.00 72
1.80 23.5
7.20 94
3.20 41.6
12.90 167
5.00 65
20.00 260
7.00 95
28.00 375
13.00 170
52.00 670
20.00 260
80.00 1050
29.00 375
116.00 1500
52.00 670
208.00 2680
80.00 1050
320.00 4200
116.00 6000
460.00 2050
160.00 2050
640.00 8500
206.00 2700
820.00 10800

The ORIPAC Model 5300 is used extensively across a variety of applications and industries.


Lambda Square, Inc 1-800-587-5423 Tel: 631-587-1000 Fax: 631-587-1011


Lambda Square, Inc. specializes
in the manufacture of differential pressure flow measurement equipment including venturi tubes, orifice plate and orifice flanges, meter tubes, orifice holding blocks, orifice restriction unions, sanitary plates, single and dual chamber fittings, ASME flow nozzles, manifolds, straightening vanes, elbow flow meters, seal pots and many other liquid, gas and steam control products.
Please contact Lambda Square with any questions concerning design and custom manufacture.
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