T9 Installation Guide 647 KB
Contents
1. 180 Transducer Head Compression Fitting with PTFE Figure 3 Barrel Holder with 180 Head Transducer 1 All equipment comes pre assembled Measure the insertion depth as shown below The insertion depth is set at the factory and should be verified Insertion Depth from end of transducer to raised face on flange e gt EAI 180 Head Transducer Model T9 Ultrasonic Flow Transducer Installation Guide 19 Chapter 3 Inserting T9 Transducers into the Pipe Inserting Transducers with the Barrel Holder cont Procedure for Inserting Transducers with the Barrel Holder cont 2 Insert the holder into the pipe nozzle Place a spiral wound gasket between the nozzle and the holder The nozzle length determines the transducer face position Barrel Holder Nozzle Pipe 3 Bolt the holder flange onto the nozzle flange as shown below Washer Nozzle Pipe 20 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 3 Inserting T9 Transducers into the Pipe 3 3 Inserting Transducers with the Barrel Holder cont 4 Install the junction box on the end of the transducer using the compression fitting 5 Repeat the above steps for the other transducer 6 Use the equation below to calculate the path length P based on the pipe inside diameter and transducer2. e Simple Holder e Barrel Holder Flanged Holder 3 2 Inserting Transducers with the Simple Holder The simple holder consists of a flange with a compression fitting tapped or welded in the middle of the flange Transducers are usually installed in a diagonal 45 configuration although other configurations are available The procedure below applies to a diagonal 45 single traverse configuration when the transducer insertion depth does not exceed the pipe inside diameter Consult GE for other configurations IMPORTANT Jf you do not know the transducer insertion depth measure the length of the nozzle from the top of the nozzle to the pipe and then add the pipe ID to that measurement If this measurement equals the Z dimension then the transducer insertion depth does not exceed the pipe ID Use the steps below to insert the simple holder 1 Measure the Z dimension as shown below The Z dimension is set at the factory and should be verified Z Dimension Model T9 Ultrasonic Flow Transducer Installation Guide 15 Chapter 3 Inserting T9 Transducers into the Pipe 3 2 Inserting Transducers with the Simple Holder cont 2 Insert the holder into the pipe nozzle Place a spiral wound gasket between the nozzle and the holder The nozzle length determines the transducer face position Transducer Head Q Y Nozzle T Ns Pipe 3 Bolt the holder flange onto the nozzle flange as shown below
3. Ireland Tel 353 0 61 470291 E mail gesensingsnnservices ge com An ISO 9001 2000 Certified Company www gesensinginspection com en about_us quality html 916 080 Rev B www gesensinginspection com 2010 General Electric Company All rights reserved Technical content subject to change without notice
4. face angle P ID cos A where ID pipe inside diameter A nozzle angle 7 Record the axial dimension L 8 Refer to your flowmeter Startup Guide or User s Manual to make transducer electrical connections You have completed transducer installation Model T9 Ultrasonic Flow Transducer Installation Guide 21 Chapter 3 Inserting T9 Transducers into the Pipe 3 4 Inserting Transducers with the Flanged Holder The flanged holder is constructed of a 11 2 in 300 or 1 in 600 flange The flange has a large hub that supports the T9 transducer and also provides acoustic isolation The transducer is inserted through the flange and is held in place by a 1 2 in tube compression fitting See Figure 4 Use the procedure below to install transducers T9 Transducer _ Compression LS Fitting N 4 5 in Flange with Hub Figure 4 Flanged Holder with T9 Transducer 1 Calculate the transducer insertion depth TID To do this measure from the inside diameter of the pipe to the raised face of the nozzle flange via the centerline Then add 0 125 in 3 2 mm to the measurement This equals the TID If you are not able to measure from the inside of the nozzle use the following equation Transducer Insertion Depth Nozzle Length Pipe Walli hickiess a 0125 in 3 2 m where A Nozzle Angl
5. unreliable performance e Caution paragraphs provide information that alerts the operator to a hazardous situation that can cause damage to property or equipment e Warning paragraphs provide information that alerts the operator to a hazardous situation that can cause injury to personnel Cautionary information is also included when applicable Safety Issues WARNING Itis the responsibility of the user to make sure all local county state and national codes regulations rules and laws related to safety and safe operating conditions are met for each installation Auxiliary Equipment Local Safety Standards The user must make sure that he operates all auxiliary equipment in accordance with local codes standards regulations or laws applicable to safety Working Area WARNING Auxiliary equipment may have both manual and automatic modes of operation As equipment can move suddenly and without warning do not enter the work cell of this equipment during automatic operation and do not enter the work envelope of this equipment during manual operation If you do serious injury can result WARNING Make sure that power to the auxiliary equipment is turned OFF and locked out before you perform maintenance procedures on the equipment Qualification of Personnel Make sure that all personnel have manufacturer approved training applicable to the auxiliary equipment Personal Safety Equipment Make sure that operators and maintenanc
6. GE Measurement amp Control Solutions Flow Model T9 Ultrasonic Flow Transducer Installation Guide nati t k 916 080 Rev B Imagination at Wor July 2010 Model T9 Ultrasonic Flow Transducer Installation Guide 916 080 Rev B July 2010 GESensinglnspection com 2010 General Electric Company All rights reserved Technical content subject to change without notice no content intended for this page Contents Chapter 1 Information NERA BV 21 AVA aerate ga Nae BP Perens art terran ig ng E RPO eee AR ELS ROE Oe IEE ee me a 1 12 7 MFARSGUECEE GONSURUCTION rera er parr tees ead AUE EE OEE a earch cette aes 1 Chapter 2 Installing Pipe Nozzles regal 408 1k 4 Peano eR et ECR Re gl ean a Rel a a e AE d aara AR E 3 2 2 Identifying and Checking the Nozzle Installation Kit Components 0 0 c ce cece cece nee eee ees 4 2 3 Selecting and Marking the First Nozzle LOGAHON es lt c08 eG be ole end ea ey el ee ee ays 5 2 4 Determining and Marking the Second Nozzle LOCAtION cece ene ene eee nee es 7 2 5 Installing the First Welding BOSS ccc af aces nanena sowed eels NEEE bh owe AE saeum Rain 10 2 6 installing the First No e ie scc0 acon a eck oe eat ets whale te Raa aids dawlase ake ewe taaad ea AAE a bec EARE 12 2 7 Installing the Second Welding Boss and Nozzle 0 cece e ete nen e ene nen ee ee eees 14 26 SHO TOR OING the PIPE Asis ores dmc eet ole data Mahe aia ie tha lard ea
7. Re aaah EEN E a ae Tone a hee 14 Chapter 3 Inserting T9 Transducers into the Pipe Sal MABROM CMON ete ek a he Cl enced ht hk ele Oe Ace Si oti Mad anak teste Mal noel halal 15 3 2 Inserting Transducers with the Simple Holdef 2o 5 elt begets rrr ee iret alae rnrn as 15 3 3 Inserting Transducers with the Barrel Holder c oyici5 ati eee la eae ke rro ete a ee eee 19 3 4 Inserting Transducers with the Flanged Holder 0 ccc eee e eben teen tenet teen ens 22 57h SeCUring the ThOMSOUCEIS lt icp us G2 emote ana e hate beeen Pie ae od ey beaks bier ade eee 25 Chapter 4 Maintenance Weel NCOORICUIONS Sten wnat sent E E Alga etal Ee aa ceil Ole att ate ChE A taint tale A a alan che 27 42 a Removing WFAN SCUCE SAL a ater A ca ates R aca atc ney sy does abel nai aa Wea tciin iis hia ata tpi 27 Chapter 5 T9 Specifications Bye Specifications seni a Es te Ga tt a e at Oo aes ee Oe ee eek ote ee 31 Model T9 Ultrasonic Flow Transducer Installation Guide jii Contents no content intended for this page iv Model T9 Ultrasonic Flow Transducer Installation Guide Preface Information Paragraphs e Note paragraphs provide information that provides a deeper understanding of the situation but is not essential to the proper completion of the instructions e Important paragraphs provide information that emphasizes instructions that are essential to proper setup of the equipment Failure to follow these instructions carefully may cause
8. Washer Washer Nut 16 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 3 Inserting T9 Transducers into the Pipe 3 2 Inserting Transducers with the Simple Holder cont 4 Install the junction box on the end of the transducer using the compression fitting Model T9 Ultrasonic Flow Transducer Installation Guide 17 Chapter 3 Inserting T9 Transducers into the Pipe 3 2 Inserting Transducers with the Simple Holder cont 6 Use the equation below to calculate the path length P based on the pipe inside diameter and transducer face angle P D cos A where ID pipe inside diameter and A nozzle angle 7 Record the axial dimension L The L dimension is equal to the pipe inside diameter 8 Refer to your flowmeter Startup Guide or User s Manual to make transducer electrical connections You have completed transducer installation 18 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 3 Inserting T9 Transducers into the Pipe 3 3 Inserting Transducers with the Barrel Holder A barrel holder is a flange with a pipe welded through its center the flange and pipe size are dependent upon the application The pipe provides support for the transducer Compression fittings on the top and bottom of the barrel holder keep the transducer in place See Figure 3 Carbon Steel Blind Flange Stainless Steel Pipe
9. ange and remove it from the pipe nozzle 6 Install a new flange gasket on the pipe nozzle Then fasten the blind flange to the pipe nozzle with the bolts removed in the previous step Blind Flange 7 Repeat steps 3 through 6 for the other transducer if necessary You have completed the removal procedure it is now safe to reopen the process line 30 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 5 T9 Specifications Chapter 5 T9 Specifications 5 1 Specifications Table 2 T9 Transducer Specifications Transducer T9 Specification Designation Hazardous area applications flare gas hydrocarbon gases saturated steam Installation Type Wetted Material Standard Titanium Optional 316SS Monel or Hastelloy Field Mounting Flowcell hot or cold tap Process Connection 1 5 in 40 mm flanged Holder Type Simple barrel or flanged holder Holder Ratings 150 300 600 Operating Frequency 100 kHz Pressure Range 0 to 2700 psig Electrical Rating 200 V peak to peak 5 mA Ambient Temperature Range Europe 40 to 158 F 40 to 70 C North America 4 to 140 F 20 to 60 C Process Temperature Range Normal Temperature 58 to 302 F 50 to 150 C High Temperature 58 to 500 F 50 to 260 C Model T9 Ultrasonic Flow Transducer Installation Guide 31 Chapter 5 T9 Spe
10. cer Installation Guide Chapter 2 Installing Pipe Nozzles 2 5 Installing the First Welding Boss cont 3 Position the welding boss such that the four scribe lines on the welding boss are lined up with the horizontal scribe mark and the oblique center line on the pipe Make sure you orient the boss as shown below Oblique Center Line Top View Scribe Mark Side View 4 Clamp the boss in place using a pipe strap or equivalent so that it cannot move during tack welding 5 Check the boss alignment then tack weld the carbon steel boss to the pipe in each of the four grooves between the boss scribe marks 6 Remove the clamp and check the alignment again If the boss is misaligned by 0 02 in 0 5 mm or more remove the boss grind off the welds and reinstall Model T9 Ultrasonic Flow Transducer Installation Guide 11 Chapter 2 Installing Pipe Nozzles 2 6 Installing the First Nozzle IMPORTANT Jt is essential that the nozzle is set up and fixed in position using the jig and l in threaded rod provided prior to welding the nozzle 1 Screw the threaded rod into boss that is welded onto the pipe If necessary remove the washer and nut from the threaded rod Threaded Rod Welded Boss 2 Insert the pipe section of the jig into the pipe section of the nozzle and fasten using four studs and eight nuts not supplied 7 Studs amp Sets of Nuts Nozzle 12 Model T9 Ultra
11. cifications no content intended for this page 32 Model T9 Ultrasonic Flow Transducer Installation Guide Warranty Warranty Each instrument manufactured by GE Sensing is warranted to be free from defects in material and workmanship Liability under this warranty is limited to restoring the instrument to normal operation or replacing the instrument at the sole discretion of GE Sensing Fuses and batteries are specifically excluded from any liability This warranty is effective from the date of delivery to the original purchaser If GE Sensing determines that the equipment was defective the warranty period is e one year from delivery for electronic or mechanical failures one year from delivery for sensor shelf life If GE Sensing determines that the equipment was damaged by misuse improper installation the use of unauthorized replacement parts or operating conditions outside the guidelines specified by GE Sensing the repairs are not covered under this warranty The warranties set forth herein are exclusive and are in lieu of all other warranties whether statutory express or implied including warranties or merchantability and fitness for a particular purpose and warranties arising from course of dealing or usage or trade Return Policy If a GE Sensing instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE Sensing giving full details of the problem and provide the mo
12. ct something is wrong with a transducer or need to replace a transducer use the appropriate removal procedure that follows 4 2 Removing Transducers Use the steps below to remove transducers that have been installed with a simple barrel or flange holder Note The illustrations in the steps below use a simple holder WARNING FOLLOW ALL APPLICABLE SAFETY CODES WHILE PERFORMING THE FOLLOWING PROCEDURES 1 Disconnect power from the flowmeter WARNING MAKE SURE POWER IS DISCONNECTED BEFORE PERFORMING THE FOLLOWING STEPS 2 Shut down or isolate the process line where you will be removing the transducers WARNING SHUT DOWN THE PROCESS LINE BEFORE REMOVING TRANSDUCERS SERIOUS INJURY MAY OCCUR IF TRANSDUCERS ARE REMOVED FROM A LIVE PROCESS LINE Model T9 Ultrasonic Flow Transducer Installation Guide 27 Chapter 4 Maintenance 4 2 Removing Transducers cont 3 Disconnect the transducer cables at the junction box Junction Box 28 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 4 Maintenance 4 2 Removing Transducers cont 4 Remove the junction box from the end of the transducer by loosening the compression fitting and unscrewing the junction box Compression Fitting Model T9 Ultrasonic Flow Transducer Installation Guide 29 Chapter 4 Maintenance 4 2 Removing Transducer cont 5 Remove the bolts that fasten the simple barrel flange holder to the nozzle fl
13. del number and serial number of the instrument If the nature of the problem indicates the need for factory service GE Sensing will issue a RETURN AUTHORIZATION NUMBER RAN and shipping instructions for the return of the instrument to a service center will be provided 2 IfGE Sensing instructs you to send your instrument to a service center it must be shipped prepaid to the authorized repair station indicated in the shipping instructions 3 Upon receipt GE Sensing will evaluate the instrument to determine the cause of the malfunction Then one of the following courses of action will then be taken e Ifthe damage is covered under the terms of the warranty the instrument will be repaired at no cost to the owner and returned e If GE Sensing determines that the damage is not covered under the terms of the warranty or if the warranty has expired an estimate for the cost of the repairs at standard rates will be provided Upon receipt of the owner s approval to proceed the instrument will be repaired and returned Model T9 Ultrasonic Flow Transducer Installation Guide 33 Warranty no content intended for this page 34 Model T9 Ultrasonic Flow Transducer Installation Guide Customer Support Centers U S A The Boston Center 1100 Technology Park Drive Billerica MA 01821 U S A Tel 800 833 9438 toll free 978 437 1000 E mail sensing ge com Ireland Sensing House Shannon Free Zone East Shannon County Clare
14. e cosA 2 Set the transducer to the desired depth by loosening the compression fitting and moving the transducer to the calculated insertion depth Loosen T9 Transducer l Compression lt Fitting a Transducer Insertion Depth TID 22 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 3 Inserting T9 Transducers into the Pipe 3 4 Inserting Transducers with the Flanged Holder cont 3 Tighten the compression fitting to hold the transducer in place 4 Place a spiral wound gasket over the end of the transducer Note You must use a gasket in order to provide the proper acoustic isolation Gasket 5 Inspect the pipe nozzle Make sure it is free from dirt rust Use the steel wool to clean the pipe nozzle if necessary 6 Insert the transducer into the nozzle Model T9 Ultrasonic Flow Transducer Installation Guide 23 Chapter 3 Inserting T9 Transducers into the Pipe 3 4 Inserting Transducers with the Flanged Holder cont 3 4 1 Securing the Transducers 1 Secure the flanges together by placing the studs washers and nuts as shown below Hand tighten each stud The factory recommends using ASTM A193 Grade B7 or equivalent studs and ASTM A19 Grade 2H or equivalent nuts Top View 24 Model T9 Ultrasonic Flow Transduc
15. e Chapter 1 Information Chapter 1 Information 1 1 Overview The T9 ultrasonic flow transducer is used exclusively with the GE line of ultrasonic flowmeters These transducers measure the flow rate of saturated steam and most gases through pipes having diameters between 2 in 50 mm and 48 in 1200 mm Such measurements are independent of the pipe material This document provides details on the following topics e Transducer Construction e Nozzle Installation Transducer Installation e Maintenance e Specifications 1 2 Transducer Construction Each T9 transducer assembly see Figure 1 consists of the following components e a metallic body e a transducer head that consists of a piezoelectric element wired to the BNC connector e a BNC style connector for use in connecting the transducer to the flowmeter e an optional noise dampening fitting improves transducer signal transmission The T9 transducer has a 180 head and is available in the following lengths 11 in 28 cm 13 in 33 cm and 16 in 40 cm Transducer Head O 4 Metallic Body BNC Connector Optional Noise Dampening Fitting Figure 1 General T9 Transducer Model T9 Ultrasonic Flow Transducer Installation Guide 1 Chapter 1 Information A amp z z X amp lt amp _ x amp zi gt lt amp z Ess no content intended for this page 2 Model T9 Ultrasonic Flow Transducer Installatio
16. e personnel have all safety equipment applicable to the auxiliary equipment Examples include safety glasses protective headgear safety shoes etc Unauthorized Operation Make sure that unauthorized personnel cannot gain access to the operation of the equipment Model T9 Ultrasonic Flow Transducer Installation Guide v Preface Environmental Compliance Waste Electrical and Electronic Equipment WEEE Directive GE Measurement amp Control Solutions is an active participant in Europe s Waste Electrical and Electronic Equipment WEEE take back initiative directive 2002 96 EC The equipment that you bought has required the extraction and use of natural resources for its production It may contain hazardous substances that could impact health and the environment In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural resources we encourage you to use the appropriate take back systems Those systems will reuse or recycle most of the materials of your end life equipment in a sound way The crossed out wheeled bin symbol invites you to use those systems If you need more information on the collection reuse and recycling systems please contact your local or regional waste administration Visit http www gesensing com environment weee htm for take back instructions and more information about this initiative vi Model T9 Ultrasonic Flow Transducer Installation Guid
17. ent filler passes as required 8 Allow to cool then remove the threaded rod washer nut and jig 2 7 Installing the Second Welding Boss and Nozzle Install the second welding boss and nozzle at the required position as described in Installing the First Welding Boss and Installing the First Nozzle beginning on page 10 The completed installation should appear as shown below 2 8 Hot Tapping the Pipe WARNING HOT TAPPING SHOULD BE PERFORMED ONLY BY QUALIFIED PERSONNEL FOLLOW ALL APPLICABLE CODE AND SAFETY PRACTICES DURING THESE PROCEDURES 1 Install 3 in ANSI flanged full bore isolation valves on both nozzles 8 in face to face for 150 RF or 11 125 in for 300 RF with gasket and 5 8 in diameter studs and nuts Orient valve handles to minimize interference 2 Hot tap holes in the pipe using hot tap machine equipped with a 3 4 in 19 mm drill bit Then use a coupon retaining hole saw to cut a hole a minimum diameter of 2 36 in 60 mm 14 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 3 Inserting T9 Transducers into the Pipe Chapter 3 Inserting T9 Transducers into the Pipe 3 1 Introduction The T9 transducer is typically installed into a meter body The meter body is a section of pipe that contains the ports where the transducers will be mounted The meter body may be prefabricated or created by installing ports on the existing pipe The T9 can be inserted into the pipes using a number of methods
18. er Installation Guide Chapter 3 Inserting T9 Transducers into the Pipe 3 4 1 Securing the Transducers cont 2 Once all the studs are inserted and hand tightened the studs must be torqued to 80 ft lb 108 N m in three stages Set the torque wrench to 30 ft lb 40 N m and torque the studs in the order shown below Begin Here 2 4 Hole Flange 8 Hole Flange 3 Set the torque wrench to 60 ft lb 81 N m and torque in the order shown below Begin Here 2 4 Hole Flange 8 Hole Flange 4 Set the torque wrench to 80 ft lb 108 N m and tighten in the order shown above 5 Repeat steps 1 through 4 for the other nozzle Model T9 Ultrasonic Flow Transducer Installation Guide 25 Chapter 3 Inserting T9 Transducers into the Pipe 3 4 1 Securing the Transducers cont 6 Install the junction boxes on the end of the transducers using the compression fittings 7 Refer to your flowmeter Startup Guide or User s Manual to make transducer electrical connections 26 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 4 Maintenance Chapter 4 Maintenance 4 1 Introduction Once the transducers are properly installed into the pipe nozzles as described in the previous section the T9 transducers require no additional adjustments Periodic inspection of the installation to verify the torque on the mounting bolts may be required if erratic flow rate measurements are observed If you suspe
19. ilm 10 Scribe vertical and horizontal lines each 6 in long to intersect at the center punch mark Scribe Lines i Side View Model T9 Ultrasonic Flow Transducer Installation Guide 9 Chapter 2 Installing Pipe Nozzles 2 5 Installing the First Welding Boss 1 Before welding the first boss you must add another scribe line known as the oblique center line The oblique center line compensates for the slope or oblique of the boss The oblique center line is offset from the true center vertical scribe line marked earlier by a distance of X which is dependent on the pipe outside diameter as follows X D 2 Ss 2 tan sin d D where D pipe outside diameter d welding boss outside diameter 1 660 in 4 cm Table 1 below shows values of X for various pipe sizes Table 1 X Values for Various Pipe Sizes X Dimensions 6 in 150 mm 6 625 in 17 cm 0 106 in 2 69 mm 8 in 200 mm 8 625 in 22 cm 0 081 in 2 06 mm 10 in 250mm 10 75 in 27cm 0 064 in 1 62 mm 12 in 300mm 12 75 in 82cm 0 054 in 1 37 mm 14in 350 mm 14 00 in 35 5 cm 0 049 in 1 24 mm 2 Scribe the oblique center line on the pipe at the prescribed distance from the true center line The oblique center line should be marked on the side of the true center line that is closer to the second nozzle location True Center Line Oblique Center Line Side View 10 Model T9 Ultrasonic Flow Transdu
20. n Guide Chapter 2 Installing Pipe Nozzles Chapter 2 Installing Pipe Nozzles 2 1 Introduction Before the T9 transducers can be installed into the pipe you will need to install pipe nozzles Nozzles can be installed on a hot or cold pipe using a GE Nozzle Installation Kit Nozzles are installed in a Tilted 45 configuration IMPORTANT This procedure only applies if you are using a Nozzle Installation Kit If you are tapping the pipe without using a Nozzle Installation Kit refer to the supplied drawings in your shipment This procedure is written and illustrated for installations on horizontal pipes however the procedure is the same for vertical pipe installations This procedure contains the following instructions e Identifying and Checking the Nozzle Installation Kit Components e Selecting and Marking the First Nozzle Location e Determining and Marking the Second Nozzle Location e Installing the First Welding Boss e Installing the First Nozzle e Installing the Second Welding Boss and Nozzle e Hot Tapping the Pipe Model T9 Ultrasonic Flow Transducer Installation Guide 3 Chapter 2 Installing Pipe Nozzles 2 2 Identifying and Checking the Nozzle Installation Kit Components The nozzle kit consists of various components which you must identify and check as described in the following sub sections The Nozzle Installation Kit contains the materials listed below Use Figure 2 to help identify each component e 2 No
21. side diameter of the pipe Average O D Model T9 Ultrasonic Flow Transducer Installation Guide 7 Chapter 2 Installing Pipe Nozzles 2 4 Determining and Marking the Second Nozzle Location cont 4 Wrap the strip of film around the pipe with one edge running along the vertical scribe line at the first nozzle location Make sure the strip overlaps squarely around the pipe and mark the overlap position of the strip This equals the circumference of the pipe Overlap Mark Side View 5 Remove the strip of film and fold it as shown below to determine the position which is diametrically opposite the overlap position when the film is reapplied to the pipe Overlap Mark Fold to Here 6 Mark the outside of the fold for reference Mark the Edge 8 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 2 Installing Pipe Nozzles 2 4 Determining and Marking the Second Nozzle Location cont 7 Place the strip of film on the pipe again this time line up the overlap mark with the horizontal and vertical scribe lines Again make sure you wrap the strip of film squarely around the pipe Fold Mark Side View 8 The new position of the center of the second nozzle is now identified as the intersection of the fold line and the second edge of the strip of film Center punch this location prior to removing the strip of film __ Punch Here Side View 9 Remove the f
22. sonic Flow Transducer Installation Guide Chapter 2 Installing Pipe Nozzles 2 6 Installing the First Nozzle cont 3 Slide the jig nozzle assembly over the threaded rod fitting the jig into the welding boss while aligning the contoured end of the nozzle so it matches the pipe arc Jig Nozzle Assembly Welded Boss 4 Align the nozzle scribe marks with the pipe scribe marks and tighten the assembly in place using the washer and nut Washer and Nut Model T9 Ultrasonic Flow Transducer Installation Guide 13 Chapter 2 Installing Pipe Nozzles 2 6 Installing the First Nozzle cont 5 The jig boss and nozzle combination is designed to provide a 0 094 in 2 4 mm root gap between the beveled edge of the nozzle and the outside diameter of the pipe If the 0 094 in 2 4 mm clearance does not exist all around the nozzle must be removed and ground appropriately to provide the required clearance If the root gap is larger than the 0 094 in 2 4 mm dimension then suitably sized washers may be inserted between the jig and the nozzle in order to reduce the root gap dimension WARNING ONLY QUALIFIED PERSONNEL SHOULD WELD BOSSES AND NOZZLES USING A SUITABLE ASME IX QUALIFIED WELDING PROCEDURE 6 Tack weld the nozzle to the pipe at four diametrically opposed points each tack being approximately 0 6 in 15 mm in length Allow to cool for 30 seconds between tacks 7 Proceed to complete the root pass and subsequ
23. zontal plane i e 3 o clock and 9 o clock as shown below End View Model T9 Ultrasonic Flow Transducer Installation Guide 5 Chapter 2 Installing Pipe Nozzles 2 3 Selecting and Marking the First Nozzle Location cont 3 At the 3 o clock position center punch the pipe to mark the position for the center of the first nozzle Side View 4 Spray this area with a marking dye product Using a metal edge scribe a vertical and a horizontal line 6 in long that intersect at the center punch mark Side View 6 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 2 Installing Pipe Nozzles 2 4 Determining and Marking the Second Nozzle Location 1 The position for the second nozzle is a distance equal to one pipe diameter along the pipe and located on the opposite side of the pipe i e 180 around Spray this area with a marking dye product 2 Due to the possible variation in outside diameter of the pipe measure the outside diameter of the pipe at four locations between the nozzle centers Calculate the average outside diameter based on these measurements D2 D3 D4 Side View 3 Using a roll of polyester film or equivalent cut a strip of film at the width and length as follows IMPORTANT Ensure that the sides of the film are cut parallel to each other e Width equal to the average outside diameter calculated in Step 1 above e Length equal to 4 times the out
24. zzles e 2 Welding Bosses e IJig e 1 Threaded Rod 1 in diameter washer and nut IMPORTANT You will need to supply eight Ye in x 4 25 in studs with two nuts each Nozzle Top Welding Boss Top Side Jig wel A CCNA Threaded Rod with Washer and Nut AU Figure 2 Components for Nozzle Installation Kit 4 Model T9 Ultrasonic Flow Transducer Installation Guide Chapter 2 Installing Pipe Nozzles 2 3 Selecting and Marking the First Nozzle Location CAUTION Correct nozzle alignment is critical to the successful operation of the flowmeter therefore all marking positioning and welding operations must be carried out with the utmost attention to accuracy Unless otherwise stated dimensional positioning of the nozzles must be held to a tolerance of 1 16 in 1 6 mm relative to each other and with respect to the pipe centerline the angular tolerance must be held to 1 All hole cutting in process piping must be performed using hot tapping equipment 1 For optimum performance you should select a location that has undisturbed straight run pipeline at least 10 pipe diameters upstream and 5 pipe diameters downstream from the point of measurement Undisturbed pipe means avoiding sources of turbulence such as valves flanges elbows avoiding swirl and avoiding disturbed flow profiles 2 We recommend that you install the nozzles on a diameter as near as possible to the hori
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