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BWT System Installation Guide

1. 2 3 Inserting the Standard BWT 2 4 Torquimg the Studs sleet ve ae ERES 2 6 Installing the BWT 2 9 Chapter 3 Installing Acoustic Isolation BWT Buffers FIPA and Transducers Identifying and Checking 3 1 Inserting the Acoustic Isolation BWT 3 3 ae ee RAM ewe ee ded 3 7 Installing the BWT 2 2 3 11 Installing Additional Acoustic Isolation 3 13 Chapter 4 Installing Non Flanged BWT Buffers FSPA and Transducers Installing Non Flanged BWT Buffers and 4 1 Chapter 1 General Information IXFOOdUCHOD odo 8 nici eon aides i i os 1 1 Types of Buffers 1 1 General Guidelines for Transducer Position and Location 1 2 BWT Flowcells lusu hn hn RE rrr 1 3 Handling and Installing a Spoolpiece 1 5 Welding Requirements 1 6 Spoolpiece Requirements When Fl
2. 2 4 Torquing the StudS uu d d ded dV ebd s des 2 6 Installing the BWT 2 9 February 2002 O LU U Identifying and Caution Checking Components It is critical that you follow the instructions outlined in this document If you do not Panametrics cannot ensure the proper operation of your eguipment Before you install the Standard BWT Buffer FTPA you should make sure you have all the needed equipment Use the lists below to identify the needed components Panametrics will supply you with the following use Figures 2 1 and 2 2 on the next page to help you identify each component Note The list below is for a one path installation 2 Standard BWT Buffers FTPAs 2 BWTI transducers 2 Kamprofile gaskets IMPORTANT Kamprofile gaskets must be used for two reasons they ensure a leak tight seal and they provide sufficient acoustic isolation 2 Mating lap joint flanges 2 Junction boxes 2 Preamplifiers for gas only epoxy or eguivalent for permanent bond not shown in photo Reguired studs nuts and washers not shown in photo 10 ft 3 m Coaxial cable with BNC connectors not shown in photo Additional cable to connect preamplifier to electronics for gas only not shown in photo You will need to supply the following Copperslip 55316 Molykote grease P47 CS or equivalent Adjustable s
3. Inserting the Standard 1 Inspect the pipe nozzle Make sure it is free from dirt rust Use BWT Buffer the steel wool to clean the pipe nozzle if necessary 2 Insert the buffer assembly into the nozzle Side View Side View 3 Apply Copperslip Molykote or equivalent on the first several threads at both ends each stud 4 Insert one stud through the flanges Make sure the stud quality rating e g B7 is facing away from the spoolpiece Hand tighten a washer and nut on to each end of the stud Make sure you leave an equal number of threads exposed on each end of the stud Side View Equal Amount of Threads AS ll Stud Quality Rating 7 Side View 2 4 Installing Standard BWT Buffers FTPA and Transducers February 2002 Inserting the Standard 5 Install the remaining studs in the order shown below but do not BWT Buffer cont tighten the nuts yet 4 Hole Flange 8 Hole Flange 6 Center the buffer in the middle of the nozzle Feel 360 degrees around the flanges to ensure equal spacing by placing your hands around the diameter of the buffer flange and the nozzle flange 7 Then align the flanges as shown below IMPORTANT Make sure
4. r PANAMETRICS BWT System Installation Guide p February 2002 es ee i Process Control Instrument Division BWT System Installation Guide User s Guide 916 058 PANAMETRICS February 2002 i oe Table of Contents Chapter 1 General Information wish bin 1 1 i oes erre ep toot ay eA DH dp te eet Had 1 1 General Guidelines for Transducer Position and 1 2 BWT Flowcell amp 4 ii ee tt Rhee eee RM ES DE OT GYDA ee ee WI 1 3 Single Traverse 8 2 1 1 3 Multiple Traverse 8 14 0 1 4 Handling and Installing Spoolpiece 1 5 Unpacking Spoolpiece sese PP AY ee Ret xem es er ees 1 5 Installing a Spoolpiece 1 5 Welding 1 41 1 6 Spoolpiece Requirements When 1 1 7 Chapter 2 Installing Standard BWT Buffers FTPA and Transducers Identifying and Checking 2 1 Assembling the Standard BWT
5. Acoustic Isolation BWT Buffers FIPA Transducers February 2002 Installing Additional If your application requires additional acoustic isolation you will Acoustic Isolation need the following to perform this procedure 1 to 3 pipe riser clamps for 4 in pipes or larger Allen wrench 1 Ifyou are using more than one clamp adjust the spacing rods on each pipe riser fixture to 1 in 25 mm Use the drawing below to properly set the rods When adjusting the rods make sure you pay attention to how the clamps will be positioned on the buffer i e how the clamps will face each other Side View 2 Use an Allen wrench to separate the two pieces of the clamp so that it can be placed on the buffer Repeat for the other clamp s Be sure not to mix pieces from different fixtures Loosen Using Allen Wrench Front View Installing Acoustic Isolation BWT Buffers and Transducers 3 13 February 2002 Installing Additional 3 Place the clamp s on the buffer as shown below Acoustic Isolation cont Top View You have completed the installation Refer to the Startup Guide of your user s manual for instructions on operation 3 14 Installing Acoustic Isolation BWT Buffers FIPA and Transducers Chapter 4 Installing Non Flanged BWT Buffers FSPA and Transducers Installing Non Flanged BWT Buffers and Transducers February 2002 In
6. Flowcell Four Traverses 1 4 General Information February 2002 Handling and Installing a Spoolpiece Unpacking a Spoolpiece Installing a Spoolpiece To ensure proper nozzle alignment Panametrics uses the highest quality welding and machining techniques when manufacturing spoolpieces Since proper alignment of the nozzles is important to making accurate flow measurement great care must be taken when unpacking and installing the spoolpiece Upon receipt you should take great care in unpacking the spoolpiece Although spoolpieces are constructed of steel improper unpacking or handling can result in damage or affect nozzle alignment Use the guidelines below for unpacking the spoolpiece Typically spoolpieces intended for BWT systems are shipped with the buffers already installed in the nozzles Take care as to not disturb the buffers Since the nozzles protrude from the pipe take care when removing packing material and the spoolpiece from its shipping container so as not to disturb the nozzles After the spoolpiece is removed from its shipping container never allow the full weight of the spoolpiece to rest on the nozzle or buffer You should prop the spoolpiece up to prevent it from rolling over which again may cause damage or misalignment of nozzles Do not let the spoolpiece hit against other objects or surfaces Nozzle alignment can be affected if the spoolpiece is dropped onto the ground or on a surface
7. N m IMPORTANT Be sure to use an ultrasonic couplant on the face of the transducer before installing it into the buffer 4 2 Installing Non Flanged BWT Buffers FSPA and Transducers PANAMETRICS WORLDWIDE OFFICES m PCI Division 221 Crescent Street Suite 1 Waltham MA 02453 3497 USA m Telephone 781 899 2746 Toll Free 800 833 9438 Fax 781 894 8582 ISO 9001 PANAMETRICS E mail pci panametrics com Web Site http www panametrics com CERTIFIED MAIN OFFICES USA Panametrics Inc 221 Crescent St Suite 1 Waltham MA 02453 3497 USA Telephone 781 899 2719 Toll Free 800 833 9438 Fax 781 894 8582 E mail pci panametrics com Web Site www panametrics com ISO 9001 Certified Ireland Panametrics Limited Shannon Industrial Estate Shannon Co Clare Ireland Telephone 353 61 470200 Fax 353 61 471359 E mail info Gpanametrics ie ISO 9002 Certified 1 29 02 INTERNATIONAL OFFICES Australia Panametrics Pty Ltd P O Box 234 Gymea N S W 2227 Australia Telephone 61 02 9525 4055 Fax 61 02 9526 2776 E mail panametrics panametrics com au Austria Panametrics Messtechnik GmbH Waldgasse 39 A 1100 Wien Austria Telephone 43 1 602 25 34 Fax 43 1 602 25 34 11 E mail panametrics netway at Benelux Panametrics B V Postbus 111 3870 CC Hoevelaken The Netherlands Telephone 31 0 33 253 64 44 Fax 31 0 33 253 72 69 E mail info panametrics nl France Panametrics
8. described in Welding Reguirements below Once welding is completed proceed to the appropriate section that follows to mount the BWT buffers and transducers Bolt holes straddle centerline symmetrically Data Tag Top View End View Figure 1 5 Top View of a Flanged Spoolpiece Welding Requirements Prior to welding do the following Remove power from the flowmeter console and disconnect the cables from the transducers Make sure the inside diameter of the spoolpiece and process pipe are properly aligned Misalignment can affect measurement accuracy 1 6 General Information February 2002 Spoolpiece Requirements When Flushing Panametrics strongly recommends using a dummy spoolpiece during flushing operations otherwise damage may occur because of the following reasons Fast moving solid objects in the flowing medium could damage the buffer faces Flushing residue sediment could clog nozzles In the event that a dummy spoolpiece is not available for flushing operations remove the buffers and plug the hole properly for the temperature and pressure used Reinstall the buffers and transducers after flushing using the information in this guide General Information 1 7 Chapter 2 Installing Standard BWT Buffers Transducers Identifying and Checking Components 2 1 Assembling the Standard BWT Buffer 2 3 Inserting the Standard BWT Buffer
9. ft lb 7 Set the torque wrench for the first setting and torque the studs in seguence 8 Repeat Step 7 with the second and third torque settings Installing Acoustic Isolation BWT Buffers and Transducers 3 9 February 2002 HE O OU Torquing the Studs 9 Check the flange alignment again to ensure that the flanges are cont parallel to each other Measure the spacing between the flanges with the caliper on at least four equally distant points the maximum tolerance is 0 2 mm difference between the four points If you cannot achieve tolerance of 0 2 mm or less replace the gasket with a new gasket and repeat the entire procedure JF Improper Gasket Alignment Top View Proper Gasket Alignment Proper Flange Alignment Top View 10 Repeat the above steps for additional flanges 3 10 Installing Acoustic Isolation BWT Buffers FIPA and Transducers February 2002 Ha AN Y OII Installing the BWT IMPORTANT After you install the BWT Buffer and transducers Transducer you must allow the epoxy to cure for eight hours Please read the following steps before installing the BWT transducer Note The typical minimum pressure should be 5 barg 75 psig to see signal at all A hi
10. nozzle flange to make sure it is free from paint rust dirt corrosion and damage If necessary clean the raised faces with steel wool In addition clean the buffer flange if you are reusing the buffer Inspect Raised Face Side View Inspect the Panametrics supplied gaskets They must not be used warped pitted or scratched Place one gasket on the end of the buffer Gasket Side View Installing Acoustic Isolation BWT Buffers FIPA and Transducers 3 3 February 2002 ZA UN NUN Inserting the Acoustic 4 Inspect the pipe nozzle Make sure it is free from dirt rust Use Isolation BWT Buffer the steel wool to clean the pipe nozzle if necessary cont Inspect Pipe Nozzle 5 Insert the buffer into the nozzle 3 4 Installing Acoustic Isolation BWT Buffers FIPA and Transducers February 2002 Inserting the Acoustic 6 Apply Copperslip Molykote or equivalent the first several Isolation BWT Buffer threads at both ends each stud cont 7 Insert one stud through the flanges Make sure the stud quality rating e g B7 is facing away from the spoolpiece Hand tighten a washer and nut on to each end of the stud Make sure you leave an equal number of threads exposed on each end of the stud Top View Stud Quality Ratirg Top View Installing Acoustic Isolation BWT Buffers FIPA and Transducers 3 5 February 2002 Inserting the Acoustic 8 Install th
11. shown in photo Reguired studs nuts and washers not shown in photo 10 ft 3 m Coaxial cable with BNC connectors not shown photo Additional cable to connect preamplifier to electronics for gas only not shown in photo You will need to supply the following Copperslip SS316 Molykote grease P47 CS or equivalent Adjustable socket drive torque wrench with 15 148 ft lb range 20 200 N m 1 deep socket 12 adjustable wrench Steel wool Calipers Tape measure Installing Acoustic Isolation BWT Buffers FIPA and Transducers 3 1 February 2002 Identifying and Checking Components cont Acoustic Isolation BWT Buffer FIPA fully assembled BWT Transducer Preamplifier Figure 3 1 Components for Acoustic Isolation BWT Buffer FIPA Figure 3 2 Gaskets 3 2 Installing Acoustic Isolation BWT Buffers FIPA and Transducers February 2002 Inserting the Acoustic Isolation BWT Buffer When you receive the Acoustic Isolation BWT Buffer it will be fully assembled Use the steps below to properly install the buffer Note Typically spoolpieces intended for BWT systems are shipped with the buffers already installed in the nozzles If this is the case proceed to Installing the BWT Transducer on page 3 11 Check the raised face of the spool
12. transducer buffers will be mounted This setup allows more accurate transducer alignment before mounting the spoolpiece into the pipeline If requested a spoolpiece can be calibrated prior to shipment All spoolpieces are factory supplied A single traverse configuration consists of two transducers mounted on opposite sides of the pipe so that the signal they transmit passes through the fluid just once at a typical 45 angle Figure 1 1 below A single traverse configuration may include more than one path Figure 1 2 on the next page Top View Figure 1 1 Single Traverse 2 Path Diagonal 45 Flowcell General Information February 2002 Single Traverse Flowcells cont w SECTION Figure 1 2 Single Traverse 2 Path Mid Radius Flowcell Multiple Traverse A multiple traverse configuration consists of two transducers Flowcells mounted on the pipe so that the signal traverses the fluid two or more times before reaching the other transducer See Figures 1 3 and 1 4 below P Distance that the signal travels through the liguid from one transducer to the other gt L Projected distance of acoustical path in liquid P Distance that the signal travels through the liquid from one transducer to the other a lt i 22 Figure 1 4 Multiple Traverse
13. BWT Buffer When the transducer begins to feel tight stop turning it Wait for a few seconds to give the couplant a chance to spread out 3 Torque the transducer 15 to 18 ft lb 20 to 25 N m DO NOT OVERTIGHTEN Installing Standard BWT Buffers FTPA and Transducers 2 9 February 2002 ZA RN UN Installing the BWT 4 Screw the junction box onto the end of the BWT transducer Transducer cont 5 Connect the transducer to the preamplifier and electronics as described in your user s manual 6 Letthe epoxy cure for 8 hours IMPORTANT After you install the Standard BWT Buffers and transducers you must allow the epoxy to cure for 8 hours You can power up the electronics however do not remove re torque or adjust the transducers Verify that the measurements are the same or better after 8 hours with the flowmeter diagnostics Caution Do not place insulation on or around the flange or buffer The flange and buffer act as a barrier tha
14. S A BP 106 11 Rue du Renard 92253 La Garenne Colombes Cedex France Telephone 33 0 1 47 82 42 81 Fax 33 0 1 47 86 74 90 E mail panametrics panametrics fr Germany Panametrics GmbH Mess und Pruftechnik Robert Bosch Strabe 20a 65719 Hofheim Germany Telephone 49 6122 8090 Fax 49 6122 8147 E mail panametrics t online de Italy Panametrics S r l Via Feltre 19 A 20132 Milano Italy Telephone 02 2642131 Fax 02 26414454 E mail info Gpanametrics it Japan Panametrics Japan Co Ltd 2F Sumitomo Bldg 5 41 10 Koishikawa Bunkyo Ku Tokyo 112 0002 Japan Telephone 81 03 5802 8701 Fax 81 03 5802 8706 E mail pci panametrics co jp Korea Panametrics Korea Ltd Kangnam P O Box 1902 Seoul Korea Telephone 82 2 555 4611 Fax 82 2 556 4351 E mail panakor soback kornet nm kr Spain Panametrics Instumentacion S L Diamante 42 28224 Pozuelo de Alarcon Madrid Spain Telephone 34 91 351 82 60 Fax 34 91 351 13 70 E mail info panametrics infonegocio com Sweden Panametrics AB Box 160 147 23 Tumba Sweden Telephone 46 0 8 530 685 00 Fax 46 0 8 530 357 57 E mail pana panametrics se Taiwan Panametrics Exim Ltd 8F No 251 Min Hwa Road Ku Shan District Kaohsiung Taiwan Telephone 886 7 552 5498 Fax 886 7 552 3596 E mail panaexim ms11 hinet net United Kingdom Panametrics UK Limited Unit 2 Villiers Court 40 Upper Mulgrave Road Cheam Surrey
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16. as soft as sand Spoolpieces can be either flanged or welded into the existing pipeline Use the following steps to position the spoolpiece into the pipeline refer to Figure 1 5 on the next page IWARNING Before installing the spoolpiece make sure pipe flushing is completed For additional information when flushing is necessary refer to Spoolpiece Reguirements When Flushing on page 1 7 1 Find the tag plate with the words TOP and FLOW DIRECTION marked on it If the spoolpiece is flanged two bolt holes should straddle the vertical centerline IMPORTANT Jn general including cases where the spoolpiece axis is not horizontal be sure that the installation does not allow gas or sediment to deposit in the transducer ports Otherwise the sound waves could be attenuated or blocked entirely General Information 1 5 February 2002 EEE Installing a Spoolpiece 2 Place the spoolpiece in the pipeline so that the FLOW cont DIRECTION arrow mark is in the direction of flow and the top is appropriately located Be sure the transducer ports are in a horizontal plane IMPORTANT f you cannot place the spoolpiece in the required orientation consult the factory otherwise operational problems may occur 3 Do one of the following Bolt the spoolpiece into place and proceed to the appropriate section that follows to mount the BWT buffers and transducers Weld the spoolpiece into place in accordance with the reguirements
17. e remaining stud the order shown below but do not Isolation BWT Buffer tighten the nuts yet cont 4 Hole Flange 8 Hole Flange 9 Center the buffer in the middle of the nozzle Feel 360 degrees around the flanges to ensure equal spacing by running your hands around the diameter of the buffer flange and the nozzle flange 10 Then align the flanges as shown below IMPORTANT Make sure the gasket is in the center of the flanges Proper Gasket Alignment End View End View 11 Once you have centered the buffer tighten the studs further by hand to maintain the centering Visually inspect that the buffer is centered in the lap joint flange if necessary adjust the buffer by hand until it is centered 3 6 Installing Acoustic Isolation BWT Buffers FIPA and Transducers February 2002 Torquing the Studs You must torque the studs to give a good seal However you should not over torque them so as to cause an acoustic short or change the transducer alignment The nuts must be tightened and torqued in stages as described below 1 Check the flange and buffer alignment again Make sure the flanges are consistently parallel to each other Bad Alignment Unequal Distances Top View Proper Alignment Equal Distances Top View Installing Acoustic Isolation BWT Buffers FIPA and Transducers 3 7 February 2002 Torquing the Studs 2 Using an adjustable wrench turn the first nut 1 8
18. e the transducers a horizontal plane This specifically applies to mounting transducers on a horizontal pipe One transducer cannot be on top of the pipe and one on the bottom because the top of the pipe tends to accumulate gas and the bottom tends to accumulate sediment These contaminants can attenuate or block the ultrasonic signal There is no similar restriction with vertical pipes To ensure a full pipe however you should avoid vertical downward flow When using a wetted installation extended well type transducers are preferred to keep the transducer face free from gas or sediment that may tend to get trapped in the transducer port 1 2 General Information February 2002 BWT Flowcells Single Traverse Flowcells BWT installations typically use a tilted diameter flowcell A tilted diameter flowcell is so named because the transducers send their pulses at a 45 angle across the diameter or other chord of the pipe This type of flowcell can be configured as a single traverse or multiple traverse installation Note The mounting angle for the transducer is typically 45 but other angles 20 30 or 60 can be used as required Tilted diameter can also refer to paths that are off diameter such as the mid radius path A flowcell is created by mounting the nozzles on the existing pipeline or on a spoolpiece A spoolpiece is a precision manufactured section of matching pipe that contains the ports where the
19. gher pressure should give a better signal to noise ratio 1 Place a small droplet 2 mm in diameter of Epoxy or equivalent on the center of the end of the transducer 2 Screw the BWT transducer into the receptacle fitting at the end of the buffer When the transducer begins to feel tight stop turning it Wait for a few seconds to give the couplant a chance to spread out BWT Transducer 3 Torque the transducer 15 to 18 ft lb 20 to 25 N m DO NOT OVERTIGHTEN Installing Acoustic Isolation BWT Buffers FIPA and Transducers 3 11 February 2002 Installing the BWT 4 Screw the junction box onto the BWT transducer Transducer cont Junction Box Top View 5 Connect the transducer to the preamplifier and electronics as described in your user s manual 6 Let the epoxy cure for 8 hours IMPORTANT After you install the BWT transducers you must allow the epoxy to cure for 8 hours You can power up the electronics however do not remove re torque or adjust the transducers 7 f you need additional acoustic isolation refer to the following section However you should let the transducer epoxy cure before proceeding Verify that the measurements are the same or better after 8 hours with the flowmeter diagnostics Caution Do not place insulation on or around the flange or buffer The flange and buffer act as a barrier that protects the BWT from high temperatures 3 12 Installing
20. he second nut 1 8 turn The second stud should be diametrically opposite the first stud Proceed to tighten the remaining studs in the order shown below or in a similar manner Turn second nut 1 8 turn 4 Hole Flange 8 Hole Flange 4 Turn each nut an additional 1 8 turn TURN NUTS IN SEQUENCE 5 Use Table 2 1 to determine the appropriate torque Table 2 1 Recommended Torque using Kamprofile Gaskets Stud Stud Rating Diameter Torque 4 Studs in ft lb Flange Rating Flange x Length in N m 316 Stainless Steel 1 1 2 ANSI 1504 1 1 2 3 1 4 56 76 1 1 2 ANSI 300 B8M C 1 3 4 x 4 3 4 82 111 1 1 2 ANSI 600 B8M C 1 3 4 x 4 3 4 82 111 1 1 2 ANSI 900 B8M C 1 1 x6 107 145 1 1 2 ANSI 1500 B M C 1 1 6 107 145 Carbon Steel 1 1 2 ANSI 150 B7 1 2 x 3 1 4 56 76 1 1 2 ANSI 300 B7 3 4 x 4 3 4 82 111 1 1 2 ANSI 600 B7 3 4 x 4 3 4 82 111 1 1 2 ANSI 900 B7 1 x6 107 145 1 1 2 ANSI 1500 B7 1 x 6 107 145 Installing Standard BWT Buffers FTPA and Transducers 2 7 February 2002 Torquing the Studs cont Gas Applications cont 6 You must torque the flange studs in three steps Divide the appropriate torque by 3 to determine the three torque settings For example if the appropriate torque is 90 ft lb the three steps would be 30 60 and 90 ft lb Set the torgue wrench for the first setting and
21. ocket drive torque wrench with 15 148 ft lb range 20 200 N m 1 in deep socket e 12 in adjustable wrench Steel wool Calipers Installing Standard BWT Buffers FTPA and Transducers 2 1 February 2002 Identifying and Checking Components cont Figure 2 1 Components for Standard BWT Buffer FTPA Figure 2 2 Gaskets 2 2 Installing Standard BWT Buffers FTPA and Transducers February 2002 Y Assembling the Note Typically spoolpieces intended for BWT systems are shipped Standard BWT Buffer with the buffers already installed in the nozzles If this is the case proceed to Installing the BWT Transducer on page 2 9 1 Slide the lap joint flange over the Standard BWT Buffer Make sure you orient the flange as shown below Lap Joint Flange Raised Face N NZ SS NS Standard BWT Buffer Side View Side View 2 Check the raised face of the spool nozzle flange to make sure it is free from paint rust dirt corrosion and damage If necessary clean the raised faces with steel wool In addition clean the buffer flange if you are reusing the buffer 3 Inspect the Panametrics supplied gaskets They must not be used warped pitted or scratched 4 Place one gasket on the end of the buffer assembly Gasket Side View Installing Standard BWT Buffers FTPA and Transducers 2 8 February 2002
22. stalling Non Flanged Non Flanged BWT Buffer FSPA is a pipe plug and coupling g g BWT Buffers and assembly made of stainless steel The FSPA is available with a Transducers threaded or socket weld mount see Figure 4 1 below Threaded buffers are screwed into the pipe coupling or nozzle while socket weld buffers are welded into the pipe coupling Both types of FSPAs enable you to install and remove transducers easily without interrupting the process or emptying the pipe Threaded Mount Socket Weld Mount Figure 4 1 Threaded FSPA BWT Buffer Installing Non Flanged BWT Buffers FSPA and Transducers 4 1 February 2002 Installing Non Flanged BWT Buffers and Transducers cont Procedure for Mounting BWT Transducers Using Threaded and Socket Weld FSPA Buffers IWARNING Follow all applicable safety codes and safety procedures when installing or removing the plugs For threaded mounts Use a thread sealant on the buffer threads and screw the buffer into the flowcell transducer port using the appropriate torgue For socket weld mounts Insert the buffer into the flowcell transducer port and weld in accordance with all applicable safety codes and procedures IWARNING Welding should be performed by qualified personnel only Safety personnel should be consulted Apply the epoxy couplant on the flat face of the BWT transducer and screw it into the buffer Hand tighten then further torque to 50 ft lb 70
23. t protects the BWT from high temperatures 2 10 Installing Standard BWT Buffers FTPA and Transducers Chapter 3 Installing Acoustic Isolation BWT Buffers and Transducers Identifying and Checking Components 3 1 Inserting the Acoustic Isolation Buffer 3 3 Torquing the lt 3 7 Installing the BWT 3 11 Installing Additional Acoustic lsolation 3 13 February 2002 Identifying and Checking Components Caution It is critical that you follow the instructions outlined in this document If you do not Panametrics cannot ensure the proper operation of your equipment Before you install the BWT transducers you should make sure you have all the needed equipment Use the list below to identify the needed components Panametrics will supply you with the following see Figures 3 1 and 3 2 on the next page to help you identify each component Note The list below is for a one path installation 2 Acoustic Isolation BWT Buffers FIPA fully assembled 2 BWT transducers 2 Kamprofile gaskets IMPORTANT Kamprofile gaskets must be used for two reasons they ensure a leak tight seal and they provide sufficient acoustic isolation 2 Mating lap joint flanges 2 Junction boxes 2 Preamplifiers for gas only 3M epoxy or equivalent for permanent bond not
24. the gasket is in the center of the flanges Proper Gasket Alignment End View End View 8 Once you have centered the buffer tighten the nuts and studs further by hand to maintain the centering Visually inspect that the buffer is centered in the lap joint flange if necessary adjust the buffer by hand until it is centered Installing Standard BWT Buffers FTPA and Transducers 2 5 February 2002 Torquing the Studs Use one of the following sub sections to properly torque the flange studs You must torque the studs to give a good seal However you should not over torque them so as to cause an acoustic short or change the transducer alignment Liquid Applications Use the recommended torque according to the flange and gasket ratings Make sure you torque the studs evenly Gas Applications The studs must be tightened and torqued in stages as described below 1 Check the flange and buffer alignment again Make sure the flanges are consistently parallel to each other 2 Using an adjustable wrench turn the first nut 1 8 turn Turn first nut 1 8 t 4 Hole Flange 8 Hole Flange 2 6 Installing Standard BWT Buffers FTPA and Transducers February 2002 Torquing the Studs Gas Applications cont cont 3 Turn t
25. tion that reduces acoustic short circuit The buffer has a flanged process connection and is available in two lengths 2 in temperatures up to 600 F 315 C and 6 in temperatures up to 1 1009F 6009C Non Flanged BWT Buffer part number FSPA is used in liquid applications and has a 1 in NPT thread or socket weld connection General Information 1 1 February 2002 General Guidelines for Transducer Position and Location Whichever transducer type is selected for your installation flowmeter accuracy depends on proper transducer location spacing alignment and electronics programming However even though every transducer installation has specific location considerations the following location guidelines apply to all transducers regardless of type Caution A flowmeter s accuracy and performance depends on the location spacing and alignment of the transducers The specific spacing of your transducers are unique to your installation 1 To help assure a uniform flow profile locate the flowcell so that there are at least 10 pipe diameters of straight undisturbed flow upstream and 5 pipe diameters of straight undisturbed flow downstream from the point of measurement Measure the distance from the center of the transducer at the pipe wall ID Undisturbed flow means avoiding sources of turbulence such as valves flanges elbows avoiding swirl and avoiding cavitation It is important to locat
26. torgue the studs in seguence Repeat Step 7 with the second and third torgue settings Check the flange alignment again to ensure that the flanges are parallel to each other Measure the spacing between the flanges with the caliper on at least four egually distant points the maximum tolerance is 0 2 mm difference between the four points If you cannot achieve a tolerance of 0 2 mm or less replace the gasket with a new gasket and repeat the entire procedure 10 Repeat the above steps for additional flanges 2 8 Installing Standard BWT Buffers FTPA and Transducers February 2002 Installing the BWT Please read the following steps before installing the BWT transducer Transducer IMPORTANT After you install the BWT transducers you must allow the epoxy to cure for eight hours Liquid Applications Simply install the transducer into the Standard BWT Buffer using a couplant Gas Applications Note The typical minimum pressure should be 5 barg 75 psig to see signal at all A higher pressure should give a better signal to noise ratio 1 Place a small droplet 2 mm in diameter of Epoxy or equivalent on the center of the end of the transducer 2 Screw the BWT transducer into the receptacle fitting at the end of the Standard
27. turn cont Turn first nut 1 8 turn 4 Hole Flange 8 Hole Flange 3 Turn the second nut 1 8 turn The second stud should be diametrically opposite the first stud Proceed to turn the remaining studs in the order shown below or in a similar manner Turn second nut 1 8 turn 4 Hole Flange 8 Hole Flange 4 Turn each nut an additional 1 8 turn TURN NUTS IN SEQUENCE 3 8 Installing Acoustic Isolation BWT Buffers FIPA and Transducers February 2002 Torquing the Studs 5 Use Table 3 1 below to determine the appropriate torque cont Table 3 1 Recommended Torque using Kamprofile Gaskets Stud Diameter Stud Rating in Torque 4 Studs x Length ft lb Flange Rating Flange in N m 316 Stainless Steel 1 1 2 ANSI 150 B8M C 1 1 2 x 3 1 4 56 76 1 1 2 ANSI 300 B8M C 1 3 4 x 4 3 4 82 111 1 1 2 ANSI 6002 B8M C 1 3 4 x 4 3 4 82 111 1 1 2 ANSI 900 B8M C 1 1 x6 107 145 1 1 2 ANSI 1500 B8M C 1 1 x 6 107 145 Carbon Steel 1 1 2 ANSI 150 B7 1 2 x 3 1 4 56 176 1 1 2 ANSI 300 B7 3 4 x 4 3 4 82 111 1 1 2 ANSI 600 B7 3 4 x 4 3 4 82 111 1 1 2 ANSI 900 B7 1 x6 107 145 1 1 2 ANSI 1500 B7 1 x 6 107 145 6 You must torque the flange nuts in three steps Divide the appropriate torque by 3 to determine the three torque settings For example if the appropriate torque is 90 ft lb the three steps would be 30 60 and 90
28. ushing 1 7 February 2002 Introduction Types of BWT Buffers Installing the BWT System consists of creating a flowcell installing the transducer buffer and then mounting transducers into the buffer Panametrics offers a variety of buffers and flowcells for your application This sections consists of general information for the following Types of BWT Buffers General Guidelines for Transducer Position and Location BWT Flowcells Handling and Installing a Spoolpiece Welding Requirements Spoolpiece Requirements when Flushing Refer to the appropriate section of this manual to install the BWT buffers and transducers that you ordered Buffers are used to protect the BWT transducers from temperature extremes Since they mount directly into the pipe coupling or nozzle they also act as barriers against the process making it possible for the transducers to be removed without interrupting the process or emptying the pipe There are three BWT buffer types available for transducers for liquid and gas applications Standard BWT Buffer part number FTPA is used for liquid and gas applications The buffer has a flanged process connection and is available in two lengths 2 in temperatures up to 600 F 315 C and 6 in temperatures up to 1 100 F 600 C Acoustic Isolation BWT Buffer part number FIPA is used for gas applications at lower pressures The buffer has a flanged isolation sec

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