BAR Ellipse® Differential Pressure Flow Meter...2 10-PTT-UM-00308 (July 2012) I. Introduction...

Installation & Operation Manual

BAR Ellipse®

Differential Pressure Flow Meter

10-PTT-UM-00308 (July 2012)

2 10-PTT-UM-00308 (July 2012)

I. Introduction

Preso’s patented elliptical design outperforms and provides greater accuracy than traditional differential pressure flow measurement devices. This differential pressure flow meter is designed with a series of ports facing the upstream velocity pressures, as well as flow sensing ports strategically located ahead of the trailing edge flow separation.

The multi-ported, self-averaging flow element consists of an elliptical shape with two independent flow sensing chambers. The impact velocity sensing holes (high pressure) are located along the leading edge and the true static sensing holes (low pressure) are on the exterior probe side. Model BAR comes with instrument shut-off valves with provisions to accept a transmitter or direct indicating meter.

II. Specifications

Applications Liquids and gasesPipe Sizes 2" – 24" (50 – 610 mm)Pressure 400 PSI (2760 kPa) maximumTemperature 250 °F (120 °C) maximumAccuracy ±0.75% of readingTurndown Ratio 17:1 with no vacuum effect

Standard Components

Y-type head, brass 1�8" FNPT connectionSensor connection: 2" – 5", Ellipse ½"; ½" brass compression fitting with SS ferrule 6" – 12", Ellipse 7�8"; 1" CS compression fitting with SS ferrule 14" – 24", Ellipse 1¼"; 1¼" brass compression fitting with SS ferruleCS 3000 lb. thread fitting - ASTM A105316/316L SS Ellipse sensorInstrument valves (2 per sensor) - ¼" SAE flare brass ball typePolycarbonate ID tag with wire

Reynolds Number Greater than 75,000 maintains most accurate flow measurementsLess than 75,000 consult factory for estimated results

Resonance If greater than 0.8, use double support

Impact velocitysensing holes

True staticsensing holes

310-PTT-UM-00308 (July 2012)

III. Pipe Orientation and Sensor Mounting

FIGURE 1 – Horizontal Pipe Installation

Air and Gas Liquid

HL

Field Weld

FLOW

H

L

Field Weld

FLOWL

L

10˚10˚

10˚ 10˚

H

L

Field Weld

FLOW

FLOW

OR 5˚ Max.

FLOW

5˚ Max.

FIGURE 2 – Vertical Pipe Installation FIGURE 3 – Probe Alignment

Notes:

Preferred flow direction for air and gas is downward.

Preferred flow direction for liquid is upward.

Illustration represents installation for downward flow.

4 10-PTT-UM-00308 (July 2012)

IV. Installation Instructions – Single Support

1. Choose the proper location to install the BAR Ellipse using AGA/ASME standards (or equivalent). Refer to the location diagrams on pages 2 and 6.

2. Grind the surface of the pipe where the BAR Ellipse is to be inserted to provide a clean area for welding.

3. Weld the supplied thread-o-let to the pipe using standard codes for your application (¹�₁₆" weld gap recommended). Take care to protect the threads during the welding process.

4. Drill a hole through the pipe wall according to Table 1.

TABLE 1 – Single Support Drill Bit Size

5. Deburr the hole just drilled, especially on the inside of the pipe.

6. Assemble the supplied compression fitting as diagrammed in Figure 4. Thread the assembled compression fitting into the thread-o-let manually. With a wrench, tighten the body of the fitting a further 1¼ turns taking care not to tighten the compression nut.

7. Install the instrument valves (optional) at the BAR Ellipse head connections. Ensure that the valves are FULLY CLOSED to prevent them from leaking during start-up.

8. Insert the BAR Ellipse through the compression fitting. Carefully push the sensor by hand further into the pipe until it reaches the opposite wall.

9. While holding the BAR Ellipse in its fully inserted position, align the arrow located on the sensor head with the direction of flow. See Figure 3 on page 3 and Figure 5.

10. Thoroughly tighten the compression nut in order to prevent leakage. After tightening the compression nut manually, turn it a further 1¼ turns with a wrench.

Pipe Size Model/Sensor Weld Connector Drill Bit

2" – 5" BAR (½") ½" 5�8"

6" – 12" BAR (7⁄8") 1" 11�8"

14" – 24" BAR (1¼") 1¼" 13�8"

H

L

H

L

Field Weld

FLOW

Nut

Insert

Body

Thread nut looselyonto body of the compression �tting

Install insertas shown

Threaded portion to be installed intoweld �tting on pipe

FIGURE 4 – Compression Fitting FIGURE 5 – Sensor Alignment

510-PTT-UM-00308 (July 2012)

V. Installation Instructions – Double Support

1. Follow Steps 1 through 7 in Section IV. At 180° from and on the same plane as the previously drilled hole, grind the surface of the pipe to provide a clean area for welding. Drill a hole and deburr, especially on the inside of the pipe. The hole used for the double support should be sized according to Table 2.

TABLE 2 – Double Support Drill Bit Size

2. Weld the double support thread-o-let making sure that it is centered with the drilled hole (¹�₁₆” weld gap recommended).

3. Install the BAR Ellipse sensor through the two holes. Make sure that the double support pin passes through the guide ring. See Figure 6.

FIGURE 6 – Double Support Pin

4. Align the arrow located on the sensor head in the direction of flow as in Step 9, Section IV.

5. Ensure that the BAR Ellipse is in the correct orientation and spans the inside of the pipe. Tighten the compression nut. After tightening the compression nut manually, tighten it 1¼ turns more using a wrench.

6. Install the plug into the end of the double support thread-o-let. Tighten the plug to prevent leakage.

Pipe Size Model/Sensor Weld Connector Drill Bit

2" – 5" BAR (7�16") ½" 3�8"

6" – 12" BAR (7⁄8") ½" ½"

14" – 24" BAR (1¼") 1" 7⁄8"

Guide Ring

Double Support Pin

Flush withPipe O.D.

2" – 5" Models 6" – 24" Models

Ellipse Sensor

6 10-PTT-UM-00308 (July 2012)

Preso Ellipse Location Instructions

Straight pipe requirements: Accuracy is affected by the piping configurations due to the disturbances of the flow profile. A fully developed symmetrical flow profile is achieved with the minimum upstream and downstream recommended lengths

DISTANCES ARE EXPRESSED INNUMBER OF NOMINAL PIPE DIAMETERS

THROTTLED VALVE OR REGULATOR TWO ELBOWS IN DIFFERENT PLANES

CHANGE IN PIPE SIZE TWO ELBOWS IN THE SAME PLANE

DIRECT MOUNT TO A SINGLE ELBOW* A SINGLE ELBOW

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

FLOW METERS

DEBITMETERS

MEDIDOR DE FLUJO

710-PTT-UM-00308 (July 2012)

100

2"2.

5"3.

5"3"

4"5"

6"8"

10"

14"

18"

24"

30"

12"

16"

20"

∆P – INCHES OF H2O

US

GP

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LAR

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IPS

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9

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70

60

50

40

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8 10-PTT-UM-00308 (July 2012)

Badger Meter Warranty

Badger Meter WarrantyBAR Ellipse®

PRODUCTS COVEREDThe Badger Meter warranty shall apply to the Preso BAR Ellipse (“Product”).

MATERIALS AND WORKMANSHIPBadger Meter warrants the Product to be free from defects in materials and workmanship for a period of 12 months from the original purchase date.

PRODUCT RETURNS Product failures must be proven and verified to the satisfaction of Badger Meter. The Badger Meter obligation hereunder shall be limited to such repair and replacement and shall be conditioned upon Badger Meter receiving written notice of any asserted defect within 10 (ten) days after its discovery. If the defect arises and a valid claim is received within the Warranty Period, at its option, Badger Meter will either (1) exchange the Product with a new, used or refurbished Product that is at least functionally equivalent to the original Product, or (2) refund the purchase price of the Product. DO NOT RETURN ANY PRODUCT UNTIL YOU HAVE CALLED THE BADGER METER CUSTOMER SERVICE DEPARTMENT AND OBTAINED A RETURN AUTHORIZATION.

Product returns must be shipped by the Customer prepaid F.O.B. to the nearest Badger Meter factory or distribution center. The Customer shall be responsible for all direct and indirect costs associated with removing the original Product and reinstalling the repaired or replacement Product. A replacement Product assumes the remaining warranty of the original Product or ninety (90) days from the date of replacement, whichever provides longer coverage.

LIMITS OF LIABILITYThis warranty shall not apply to any Product repaired or altered by any Product other than Badger Meter. The foregoing warranty applies only to the extent that the Product is installed, serviced and operated strictly in accordance with Badger Meter instructions. The warranty shall not apply and shall be void with respect to a Product exposed to conditions other than those detailed in applicable technical literature and Installation and Operation Manuals (IOMs) or which have been

subject to vandalism, negligence, accident, acts of God, improper installation, operation or repair, alteration, or other circumstances which are beyond the reasonable control of Badger Meter.

With respect to products not manufactured by Badger Meter, the warranty obligations of Badger Meter shall in all respects conform and be limited to the warranty extended to Badger Meter by the supplier.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES WHATSOEVER, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (except warranties of title).

Any description of a Product, whether in writing or made orally by Badger Meter or its agents, specifications, samples, models, bulletins, drawings, diagrams, engineering sheets or similar materials used in connection with any Customer’s order are for the sole purpose of identifying the Product and shall not be construed as an express warranty. Any suggestions by Badger Meter or its agents regarding use, application or suitability of the Product shall not be construed as an express warranty unless confirmed to be such, in writing, by Badger Meter.

EXCLUSION OF CONSEQUENTIAL DAMAGES AND DISCLAIMER OF OTHER LIABILITYBadger Meter liability with respect to breaches of the foregoing warranty shall be limited as stated herein. Badger Meter liability shall in no event exceed the contract price. BADGER METER SHALL NOT BE SUBJECT TO AND DISCLAIMS: (1) ANY OTHER OBLIGATIONS OR LIABILITIES ARISING OUT OF BREACH OF CONTRACT OR OF WARRANTY, (2) ANY OBLIGATIONS WHATSOEVER ARISING FROM TORT CLAIMS (INCLUDING NEGLIGENCE AND STRICT LIABILITY) OR ARISING UNDER OTHER THEORIES OF LAW WITH RESPECT TO PRODUCTS SOLD OR SERVICES RENDERED BY BADGER METER, OR ANY UNDERTAKINGS, ACTS OR OMISSIONS RELATING THERETO, AND (3) ALL CONSEQUENTIAL, INCIDENTAL AND CONTINGENT DAMAGES WHATSOEVER.

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