AR Threaded Ellipse Flow Meter - · PDF fileForm: 10PTTUM0005 (August 2012) AR Threaded...

Form: 10-PTT-UM-00305 (August 2012)

AR Threaded EllipseFlow Meter

Installation & Operation Manual

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Form 10-PTT-UM-00305 08/12

Form 10-PTT-UM-00305 08/12

I. INTRODUCTION

Preso's 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 AR comes with instrument shut-off valves with provisions to accept a transmitter or direct indicating meter.

II. SPECIFICATIONS

Applications: Liquids and gases

Pipe Sizes: 2 to 72 inches (50 to 1820 mm)

Pressure: 800 PSI (5515 kPa) maximum

Temperature: 800 °F (426 °C) maximum

Accuracy: ±0.75% of reading

Turndown Ratio: 17:1 with no vacuum effect

Standard Components:

T-type head, 316 SS ¼” or ½” FNPT connectionCS compression fitting with SS ferruleCS 3000 lb. weld fitting - ASTM A105316/316L SS Ellipse sensorInstrument valves (2 per sensor) - ¼”, CS316 SS 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

True staticsensing holes

Impact velocitysensing holes

Form 10-PTT-UM-00305 08/12

III. PIPE ORIENTATION AND SENSOR MOUNTING

Field Weld

Field Weld

FLOW

FLOW

Air and Gas Liquid

FIGURE 1 - HORIZONTAL PIPE INSTALLATION

5° Max.

5° Max.

FLOW

FLOW

FLOW

OR

Field Weld

NOTE: For sensors with transmitter mount head, see AR-TT3 Instruction Manual.

NOTE: Illustration represents installation for downward flow.

FIGURE 2 − VERTICAL PIPE INSTALLATION FIGURE 3 − PROBE ALIGNMENT

Form 10-PTT-UM-00305 08/12

IV. INSTALLATION INSTRUCTIONS - SINGLE SUPPORT

1. Choose the proper location to install the AR 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 AR 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.

MODEL / SENSOR WELD CONNECTOR DRILL BIT

AR0 (½”) ½” ⁵�₈”

AR (⁷�₈”) 1” 11�₈”

AR1 (1¼”) 1¼” 13�₈”

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 1-¼ turns taking care not to tighten the compression nut.

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

8. Insert the AR 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 AR Ellipse in its fully inserted position, align the arrow located on the sensor head with the direction of flow. See Figure 5.

Nut

Insert

Body

Thread nut looselyonto body of the compression �tting

Install insertas shown

Threaded portion to be installedinto weld �tting on pipe

Field Weld

FLOW

FLOWH L

H L

FIGURE 4 − COMPRESSION FITTING FIGURE 5 − SENSOR ALIGNMENT

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.

Form 10-PTT-UM-00305 08/12

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.

MODEL / SENSOR WELD CONNECTOR DRILL BIT

AR0 (½”) ¹�₈” ³�₈”

AR (⁷�₈”) ½” ½”

AR1 (1¼”) 1” ⁷�₈”

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

Ellipse Sensor

Double Support Pin

Guide Ring

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 AR 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.

Form 10-PTT-UM-00305 08/12

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

Form 10-PTT-UM-00305 08/12

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10-PTT-UM-00305 08/12 Badger Meter Warranty

Badger Meter WarrantyAR Ellipse (Threaded)

PRODUCTS COVERED

The Badger Meter warranty shall apply to the Preso AR Threaded Ellipse Flow Meter (“Product”).

MATERIALS AND WORKMANSHIP

Badger 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 LIABILITY

This 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 LIABILITY

Badger 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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