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Instrument Tube FittingInstallation ManualBulletin 4200-B4August 2018

Table of ContentsBulletin 4200-B4InstallationTubing Fitting InstallationValvesFittingsTubingTubing vs Pipe. 1Principles of Tube Line Fabrication. 3Instrument Tubing Selection Guide. 19Tubing Preparation(handling, cutting, deburring, cleaning). 29Assembly & Remake. 32Parker IPD Ferrule Presetting Tool. 37MPI Assembly & Remake. 41MPI Preset Tools. 42MPI Tubing Selection. 44Dielectric Fittings. 48High Integrity Coupling Assembly. 49Installation of Weld Fittings. 50Analytical Tube Fittings. 56Heat Code Traceability. 58Parker Suparcase – Ferrule Hardening . 60Thread Identification. 63Thread and Tube End Size Charts. 69Pipe Data and Dimensions. 77Offer of SaleThe items described in this document are hereby offered for sale by Parker-Hannifin Corporation, its subsidiaries or itsauthorized distributors. This offer and its acceptance are governed by the provisions stated in the detailed “Offer of Sale”elsewhere in this document or available at www.parker.com/ipdus. 2018 Parker Hannifin Corporation. All rights reserved.iiParker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipd

Parker Fittings OverviewCPI / A-LOK Fittings. 109MPI Fittings. 110Pipe Fittings. 111Welded Fittings. 112TubingParker Tubing Overview. 113ValvesNeedle Valves. 79Ball Valves. 85Check Valves. 93Metering Valves. 105FittingsParker Valves OverviewInstallationTable of ContentsBulletin 4200-B4WARNING – USER RESPONSIBILITYFAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN ORRELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributorsprovide product or system options for further investigation by users having technical expertise.The user, through its own analysis and testing, is solely responsible for making the final selection of the system andcomponents and assuring that all performance, endurance, maintenance, safety and warning requirements of theapplication are met. The user must analyze all aspects of the application, follow applicable industry standards, andfollow the information concerning the product in the current product catalog and in any other materials provided fromParker or its subsidiaries or authorized distributors.To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upondata or specifications provided by the user, the user is responsible for determining that such data and specificationsare suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems.NOTICE: The information contained within this publication is intendedfor educational purposes only. Information contained within is not intendedfor re-sale and may not be reproduced in whole or in part without theexpress written consent of The Parker Hannifin Corporation.iiiParker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipd

NotesBulletin 4200-B4InstallationivParker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipd

Tubing vs. PipeStandard fluid line systems, whether for simple household use or forthe more exacting requirements of industry, were for many yearsconstructed from threaded pipe of assorted materials and wereassembled with various standard pipe fitting shapes, unions andnipples. Such systems under high pressures were plagued with leakageproblems besides being cumbersome, inefficient and costly to assembleand maintain. Therefore, the use of pipe in these systems has largelybeen replaced by tubing because of the many advantages it offers.Old Method – Each connection isthreaded – requires numerous fittings– system not flexible or easy to installand service connections not smoothinside – pockets obstruct flow.Figure 1 Tubing provides simplified,free flow system.Modern Method – Bendable tubingneeds fewer fittings – no threadingrequired – system light and compact– easy to install and service – nointernal pockets or obstructions tofree flow.Major Advantages of Tubing vs. Pipe1. Bending Quality – Tubing has strong but relatively thin walls; is easyto bend. Tube fabrication is simple.2. Greater Strength – Tubing is stronger. No weakened sections fromreduction of wall thickness by threading.PipeTubingFigure 2 With no threading necessary, tubing does not require extra wallthickness1Parker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipdInstallationTubing vs. PipeBulletin 4200-B4

Tubing vs. PipeBulletin 4200-B4Installation3. Less Turbulence – Smooth bends result in streamlined flow passageand less pressure drop.4. Economy of Space and Weight – With its better bending qualities anda smaller outside diameter, tubing saves space and permits workingin close quarters. Tube fittings are smaller and also weigh less.5. Flexibility – Tubing is less rigid, has less tendency to transmitvibration from one connection to another.6. Fewer Fittings – Tubing bends substitute for elbows. Fewer fittingsmean fewer joints, fewer leak paths.7. Tighter Joints – Quality tube fittings, correctly assembled, give betterassurance of leak-free systems.8. Better Appearance – Tubing permits smoother contours with fewerfittings for a professional look to tubing systems.9. Cleaner Fabrication – No sealing compounds on tube connections.Again no threading; minimum chance of scale, metal chips, foreignparticles in system.10. Easier Assembly and Disassembly – Every tube connection serves asa union. Tube connections can be reassembled repeatedly with easywrench action.11. Less Maintenance – Advantages of tubing and tube fittings add up todependable, trouble-free installations.2Parker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipd

Principles of Tube Line FabricationPrinciples of Tube Line Fabrication1. Measure Exactly and Bend AccuratelyMeasuring exactly and bending accurately are the two most important rules which must be observed when fabricating a tube line.Figure 3 Accurate measurements coupled with exact angles mayresult in a tube line that will fit at points (A-D).Exact measurement is required to insure that you obtain the desireddistance between bends. If you do not measure exactly, the tube linewill not fit.Figure 4 Measuring error on second leg (B-C) results in tube line that cannot fit at point (D).3Parker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipdusInstallationBulletin 4200-B4

Principles of Tube Line FabricationBulletin 4200-B4InstallationAccurate bending is necessary to achieve the exact angles requiredfor the tube line. If you do not bend accurately, the tube line will not fit(Figure 5).Figure 5You must always measure exactly and bend accurately.2. Tube Centerline Basis for MeasurementThe centerline of the tube is the basis for all tube line measurement(Figure 6). Always measure from the centerline except from the firstbend which is measured from the end of the tube. On most benders,the edge of the radius block is at the centerline of the tube.Figure 63. You Control AccuracyRemember only you can control the accuracy of your work. Usegood, careful workmanship at all times.4Parker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipdus

Principles of Tube Line FabricationTube Bending ChecklistFollow this list to insure good results on each bend.1. Measure and mark exactly. Insert tube in bender.2. Always try to bend in the same direction! If you backbend, be sureto compensate for gain or pickup. Remember, gain always occurs tothe right side of the tube radius block.3. Clamp tubing securely in bender.4. Check to make certain length mark is tangent to desired angle onradius block or in line with the desired degree on the link member.5. Bend accurately to the desired angle plus springback allowance.6. Open bender, remove tube.7. Double check bend angle with triangle.8. Check measurement length with tape or ruler.Keep Track of Changes of PlaneBenders bend in only one direction. Changes in plane are accomplishedby rotating the tubing in the bender. To insure that the tubing is correctlyplaced for the desired change in plane, a reference mark on the tube isvery helpful.Bend Direction MarkOne method for keeping track of changesin plane is to use a longitudinal or lengthwise bend direction mark (Figure 7).Put the mark on the side opposite thedirection in which you wish to bend.Figure 75Parker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipdusInstallationBulletin 4200-B4

Principles of Tube Line FabricationBulletin 4200-B4InstallationWhen you put the tube in the bender, center the mark face up in thegroove of the radius block (Figure 8). This will insure that you bend inthe correct direction. It also gives you a reference mark in case you mustleave your work unfinished.Figure 8Marking the TubeWhenever you make a mark on tubing, use a sharp pencil. Use a ferruleas a guide to make measurement marks all the way around the tube sothat the mark is always visible (Figure 9). Don’t use grease pencils orcrayons as these make too wide a line which can easily affect accuracy.Figure 9Measure and MarkNever use a sharp tool to scratch marks onto tubing. S cratches createpoints where corrosion or stress concentration can ruin or dangerouslyweaken the tube.6Parker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipdus

Principles of Tube Line FabricationRules for Positioning Tubing in BenderA line which is tangent to the desired angle mark on the radius blockand which passes through the measurement mark at the centerlineof the tube, is used to control the distance between bend centerlines(Figure 10).Figure 10Tube Positioning Rules90 angles – Tangent flush with lengthmark (refer to dotted line XY tangent toradius block @ 90 , Figure 10).Angles less than 90 – Tangentintersects length mark at centerline.Angles more than 90 – Position for a 90 bend and continue on to desired angle,i.e., 135 , 145 (i.e., length mark @ 90 on link member).Horseshoe or U-Bends – Measure first leg,position for 90 , bend around to 180 .7Parker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipdusInstallationBulletin 4200-B4

Principles of Tube Line FabricationBulletin 4200-B4InstallationSpringback 90 BendFigure 11Rule of Thumb – Springback is approximately 3 for each90 bend with stainless steel tubing.Compensate for springback:1. Test a piece of the material before you start fabricating a line to seehow much it springs back on a 90 bend.2. Overbend by the amount of springback. For example, if the materialsprings back 3 on a 90 bend, bend to 93 to secure a finished90 bend, or to 46-1/2 to obtain finished 45 bend. This worksespecially well with large heavy-wall tubing.3. Remember, it is always better to underbend slightly. You can alwaysbend a little more if needed, but it’s almost impossible to remove orstraighten a bend, especially with large, heavy-wall tubing.Remember – a tube bender bends – it cannot unbend.8Parker Hannifin CorporationInstrumentation Products DivisionHuntsville, AL USAhttp://www.parker.com/ipdus

Tube Stretch or PickupWhen bent, tubing seems to stretch or pick up length. This is becauseit takes a curved shortcut across the inside of the angle. A good “rule ofthumb” for most standard tubing materials and radius blocks is that thetubing will stretch approximately one tube diameter for each 90 bend.Triangle A-B-C – with Arc “A-C”Figure 12The arc “A-C” is shorter than the distance from “A” to “B”,plus “B” to “C”.Always try to bend in the same direction – away from the original starting end. If you reverse the direction of bending (bending towards insteadof away from the original starting end) you will “trap” the stretch. Thus, ifyou unknowingly make a reverse bend of 90 , you will trap the gain, inTable 1 (approximately one tube O.D.) and increase your length betweenbends by that amount.If bend direction for either 45 or 90 bend must be reversed, subtractthe “gain” amount listed in Table 1.While our rule of thumb is approximately correct, the amount of stretchis related to the diameter of the radius block used. Table 1 gives theaccurate increase in length that occurs with the most commonly usedsizes of radius blocks.As long as you measure and bend with the tube inserted from the left,and measure centerline, “pickup” will not affect your actual center-tocenter