GOOD AND TIGHT FOR THE RIGHT TIGHT, TIGHTER IS BETTER: A DESCRIPTION OF ASME MODERN FLANGE DESIGN

Size: px
Start display at page:

Download "GOOD AND TIGHT FOR THE RIGHT TIGHT, TIGHTER IS BETTER: A DESCRIPTION OF ASME MODERN FLANGE DESIGN"

Transcription

1 GOOD AND TIGHT FOR THE RIGHT TIGHT, TIGHTER IS BETTER: A DESCRIPTION OF ASME MODERN FLANGE DESIGN Robert Williams WestermannBG August 21, 2017 Abstract The Design by Method approach found in the ASME Code allows for the selection of bolting materials with the intent of securing the joints as tightly as possible. During operation, stresses in the structure of piping runs will settle and the incurred strain will be transmitted to the weakest member of the assembly, the bolted flange. In such cases a tighter joint may not only reconcile those strains, but when employing a properly selected and fitted gasket, improve the fatigue resistance and volumetric laminar flow resistance of the joint. I. Bolted-flanged Joint Piping runs can be assembled in multiple ways; with fully welded assemblies, threaded pipes and connectors, or bolted flanges. The bolted flanged joint offers an unparalleled ease in the assembly and disassembly department of large bore piping systems, allowing for a variety of equipment and fittings to also be mounted. By its very nature, the flanged joint is the weakest link in a piping structure. When under normal operating conditions, a joint leak may be the result of inadequate design, materials, or assembly. On the other hand, leaks may also develop as a result of abnormal operating conditions, such as: A. Excessive working loads B. Fatigue caused by cyclic loads C. Sudden hammer loads D. Excessive dead loads E. Excessive or transient temperatures F. Material creep G. Corrosion With the exception of fatigue and hammer loads, each of these conditions will produce a constant strain on the joint and its components causing a loss of contact load between the flange face and gasket. Fatigue and hammer loads cause a material to behave in a manner unlike those found when operating under laboratory conditions where the application of loads are slow and controlled. A flanged joint is composed of the following elements; flanges, bolts, a gasket, and (if part of the design) the wall of the pipe or vessel. A minimum axial load must be maintained on the joint to prevent unseating and leakage. With the use of a gasket between the flanges, a minimum axial load is necessary in keeping the gasket well seated. 1

2 II. Minimum Gasket Contact Load In the 1930 s, British tests plotted axial load to a visible leak rate as internal pressure was added to a fixture. From such tests they concluded that an incremental relationship between axial load and internal pressure existed and that for a given gasket material at a given internal pressure there was a minimum gasket contact load. The contact load depends on the gasket material s ability to conform to the imperfections of the flange face. Nowadays, the minimum contact load to conform to the flange face is empirically determined with the ASME gasket design constant - minimum seating stress, y. The minimum seating stress was once labeled as a yield value, this term was misleading and though it was abandoned, the variable remains y to this day. Depending on their chemical makeup, elastomers and other gasket constructions whose behavior resembles elastomers, such as compressed fiber and spiral wound, yield and neck according to their own natural draw ratio with an inclination toward brittle fracture at some precipitous point beyond the yield value. Yield, in this case, might be best described as an intrinsic point prior to strain softening and orientation of the polymer chains or composite matrix. Today, researchers across multiple industries (medical, food, construction and aerospace) promote research to better understand the yield behavior of rubber and rubber like materials. The quadratic formula in Equation 1 defines the slope of the relationship between a gasket material construction s minimum seating stress and the incremental load required to maintain a gasket seat when internal pressure is applied. This pressure creates an axial force in such a direction as to separate the joint. The coefficient m, termed gasket design factor m, is used as a multiple of pressure to satisfy the relationship. Its use in design is further described in the Practical Application section below. y = 180(2m 1) 2 III. Gaskets Gaskets are chosen for their media compatibility and temperature rating, and as such do not have pressure ratings. If flange faces were perfectly machined and perfectly aligned during assembly, a gasket would not be necessary. Gaskets do not leak leaks are caused when system pressure is greater than the contact load required to keep the gasket seated. To satisfy the wide range of flange faces, media, and temperatures associated with piping systems, gaskets come in a variety of constructions such as elastomers, compressed fiber, and spiral wound. Their design constants, m and y, are published by the ASME and used in the minimum required bolt load formula. The ASME has divided gasket materials into groups to help follow bolting rules. An analysis of these constants will reveal that gasket constructions with lower y values require smaller initial contact loads. IV. Bolting Bolting should be capable of producing a minimum gasket contact load, be compatible with the operating temperature, and have suitable toughness when subjected to fatigue and hammer loads. Bolting is chosen for its elastic strain energy, a measure of toughness, as it provides a strong and ductile joint. V. Leak Before Break Criteria If the pressure load threatening to unseat the gasket is greater than the preload, the joint will leak, thereby relieving pressure on the system. This is a natural safety feature of the design. If the pressure load is great enough, the bolts will the carry the full imparted load. At this point, the bolts are subjected to both the initial preload and the system pressure load. 2

3 One needs to add both of these loads when making a minimum bolting strength decision. A tough bolt, one capable of sustaining large strain energy, will allow the flange to leak and relieve pressure, so the risk of a cascade fracture propagating through the piping system is mitigated. The bolt should not break. VI. Assembly Developing preload during assembly is critical. If the preload is too low, the joint will not seat the gasket. If the preload is too great there is little available strain, if any, remaining in the bolt to satisfy the leak before break criteria. Preload is the load initially produced by the torquing of the nut about the bolt and can often be given as a torque value. Preload is transferred from the mechanic s pull on the wrench to the bolt, which will elongate the bolt as the torsional energy is transformed into an axial load. This axial strain of the bolts will compress the flanges and gasket. When installed by wrenches the exact magnitude and direction of the transferred preload within the joint and its components is uncertain. Some of these uncertainties are: A. The stiffness of gasket materials demonstrating elastomer-like behavior B. Load distribution at the bolt/nut/washer/flange interface C. The friction between the nut and bolt threads D. Friction between the nut and flange surface E. Tool accuracy VII. New Flange Design Basics The design of flanges typically begins with selecting a gasket suitable for the operating conditions, then calculating a bolt load to produce a minimum gasket seat greater than the hydrostatic end force tending to unseat the gasket. Once the bolt load is known, the designer will go through an iterative process to determine bolting material, diameter, bolt pitch, and then design flange dimensions to include outside diameter, thickness, and hub dimensions. To utilize the full strength of the bolt or modify it for a desired outcome, its drive style, body style, thread pitch, thread class, thread fit, thread protrusion, thread engagement, thread length, compatible nut, and selection of installation method will have to be determined. VIII. Selecting Components for Standard ASME B16 Flanges The ASME has standardized flange design under the general category specification B16. In these standards, one will find flange geometry, gasket suggestions, bolting rules, and pressure-temperature ratings. When one accepts the pressure-temperature rating of ASME B16.5 flanges and the allowable design stress philosophy of ASME Boiler and Pressure Vessel and B31 Piping Code, one accepts the use of listed bolting components. Following the design by method approach and choosing from the list is neither an option nor a suggestion if one desires to meet the ASME standards. If one chooses to deviate from the list and utilize a special or nonstandard material, the owner s approval is required. Listed bolting materials are intended to meet the toughness criteria previously mentioned; providing a combination of strong and ductile bolts. IX. Practical Application When a joint is assembled, the actual magnitude of the load on the gasket is uncertain due to previously mentioned variances as well as other factors. When the piping system is pressurized, the structure will relax causing 3

4 a reduction in the contact load on the gasket from that which was produced during the assembly. A tighter joint helps reconcile these strains. In the design of an ASME leak free joint, the m factor is used to account for relaxations and variances. One will design for a higher, albeit uncertain, contact load knowing that as the structure relaxes the load will incrementally drop to a value no less than the minimum gasket contact load. For some gasket materials, the load to produce an initial gasket seat is sufficiently high to account for the contact load loss when the system is pressurized. For new ASME flange design, the minimum contact load on the gasket is solved using the minimum required bolt load equation found in ASME Boiler and Pressure Vessel Code Section VIII, Division 1, Appendix 2. ASME published gasket design m factor and y value are optional. Following the logic of ASME design, one will know the flange is properly designed for the relaxations and variances found in normal operating conditions if, after proper selection and assembly of gasket and bolting, and after pressure testing, the joint does not leak. The minimum required bolt load equation is not the source for calculating an installation torque value. The equation is used for calculating a minimum bolt load. Once the bolting material has been selected, it is assumed that the full strength of the bolt will be utilized. An exception to this rule is when using high strength bolting and spiral wound gaskets that have a compression stop. The gasket s compression stop limits the bolt load. Another exception is when the flange s modulus of elasticity is substantially less than that of the bolting. When this occurs, the flange could be fractured by accidental over-tightening. The fracture initiation point is likely to occur around the bolt hole s stress concentrations. A good starting point for an installation torque value is to use sixty-seven percent of the bolting s yield or proof load. Importantly, with certain specialized applications, field experience and environmental conditions may dictate otherwise. X. Conclusion The flanged joint, like any other structural joint, is a point of weakness subject to complex loads, but with proper design can serve as a failsafe point. As a practical matter, its design and the ability to apply its principles should be easy for the average person to follow. By using the right materials one can get it good and tight for the right tight; tighter is better. Codes References 2007 ASME Boiler and Pressure Vessel Code: An International Code. VIII. Division 1, Rules for Construction of Pressure Vessels. New York, NY: American Society of Mechanical Engineers, ASME Boiler and Pressure Vessel Code, An International Code, Section II Materials, Part A, Ferrous Materials Specifications, New York: American Society of Mechanical Engineers, Building Services Piping: ASME Code for Pressure Piping, B31. New York: American Society of Mechanical Engineers, C.F. Braun and Co, Review of Piping and Pressure Vessel Code Design Criteria Technical Report 217 LMFBR Piping Design Guide Project 4122-W, Alhambra, Ca, Companion Guide to the ASME Boiler & Pressure Vessel Guide, Criteria and Commentary on Select Aspects of the Boiler & Pressure Vessel and Piping Codes, Second Edition, Volume 1, New York: Ameri- 4

5 can Society of Mechanical Engineers, Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/inch Standard. New York: American Society of Mechanical Engineers, Power Piping: ASME Code for Pressure Piping, B31. New York: American Society of Mechanical Engineers, Design The American Society of Mechanical Engineers, Pressure Vessel and Piping Design, collected papers , New York, Brownell, Lloyd E, and Young, Edwin H., Process Equipment Design, New York: Wiley Chambers, Jeffrey A, Preloaded Joint Analysis Methodology for Space Flight Systems, Lewis Research Center, Cleveland, Commander, Naval Sea Systems Command, Submarine Fastening Criteria (Non-Nuclear) S9505-AM-GYD-010 Rev. 2, Washington D.C., 2002 Gough, H.J. First Report of the Pipe Flange Research Committee, Pipe Flanges Research Committee, Ibrahim, RA, Pettit, C.L, Uncertainties and dynamics of bolted joints and other fasteners, Journal of Sound and Vibration 279 ( ), Elsevier, M. W. Kellogg Company. Design of Piping Systems, Revised Second ed., John Wiley and Sons, Rossheim, D.B, Markl, A.R.C, The Significance of, and Suggested Limits for, the Stress in Pipelines due to the Combined Effects of Pressure and Expansion, ASME Trans. Vol. 62. No. 5, New York, ASME,1940 Walker, J.H, Crocker, Sabin. Piping Handbook. First ed. New York & London: McGraw-Hill Book Company, Theory and Materials Atlas of Stress-Strain Curves, Second Edition, Materials Park, Ohio, ASM International, Blake, Alexander, Design of Mechanical Joints, New York, Marcel Dekker Inc, Blake, Alexander, Practical Fracture Mechanics in Design, Marcel Dekker Inc, New York, Blake, Alexander, Practical Stress Analysis in Engineering Design, Second Edition, Revised and Expanded, Marcel Dekker, Inc, New York, 1990, Blake, Alexander, What Every Engineer Should Know About Threaded Fasteners, Materials and Design, New York: Marcel Dekker Inc, 1986, Brinson, H.F, Brinson, L.C., Polymer Engineering Science and Viscoelasticity, An Introduction, Springer Science + Business Media, LLC, Heyman, Jacques, The Science of Structural Engineering, London: Imperial College Press, 1999 Kurrer, Karl-Eugen, The History of the Theory of Structures From arch analysis to computational mechanics, Berlin: Ernst and Son, Electronic Lemaitre, Jean, Handbook of Materials Behavior Models, Vol.1 Deformation of Materials, San Diego, Academic Press, 2001 Roylance, David. Mechanics of Materials, New York: John Wiley and Sons, Inc,

Joint relaxation behaviour of gasketed bolted flanged pipe joint during assembly

Joint relaxation behaviour of gasketed bolted flanged pipe joint during assembly Proceedings of the 2nd WSEAS Int. Conference on Applied and Theoretical Mechanics, Venice, Italy, November 20-22, 2006 319 Joint relaxation behaviour of gasketed bolted flanged pipe joint during assembly

More information

STUDY AND ANALYSIS OF ANGULAR TORQUING OF ENGINE CYLINDER-HEAD BOLTS USING TORQUE-TO-YIELD BOLTS: A CASE STUDY

STUDY AND ANALYSIS OF ANGULAR TORQUING OF ENGINE CYLINDER-HEAD BOLTS USING TORQUE-TO-YIELD BOLTS: A CASE STUDY International Journal of Mechanical and Production Engineering Research and Development (IJMPERD) ISSN 2249-6890 Vol. 3, Issue 4, Oct 2013, 1-10 TJPRC Pvt. Ltd. STUDY AND ANALYSIS OF ANGULAR TORQUING OF

More information

A training course delivered at a company s facility by Matrix Engineering, an approved provider of Bolt Science Training

A training course delivered at a company s facility by Matrix Engineering, an approved provider of Bolt Science Training A training course delivered at a company s facility by Matrix Engineering, an approved provider of Bolt Science Training Following is an outline of the material covered in the training course. Each person

More information

NTTC Tank Truck Week Awareness Gaskets/Fasteners/Flanges

NTTC Tank Truck Week Awareness Gaskets/Fasteners/Flanges NTTC Tank Truck Week 2015 Awareness Gaskets/Fasteners/Flanges OVERVIEW 1. Flange 101 Flange Types Inspection & Assembly 2. Gaskets 101 Stress Tightness 3. Fastener 101 Yield Lubrication Bolted Flanged

More information

Bolts and Set Screws Are they interchangeable?

Bolts and Set Screws Are they interchangeable? 1903191HA Bolts and Set Screws Are they interchangeable? Prof. Saman Fernando Centre for Sustainable Infrastructure SUT Introduction: This technical note discusses the definitions, standards and variations

More information

Evaluation of In-Pavement Light Fixture Designs and Performance

Evaluation of In-Pavement Light Fixture Designs and Performance Evaluation of In-Pavement Light Fixture Designs and Performance Presented to: IES ALC Fall Technology Meeting By: Joseph Breen Date: Background In-Pavement Light Fixture Assemblies Utilize a Circle of

More information

Bolted Joint Design. Mechanical Properties of Steel Fasteners in Service

Bolted Joint Design. Mechanical Properties of Steel Fasteners in Service Bolted Joint Design There is no one fastener material that is right for every environment. Selecting the right fastener material from the vast array of those available can be a daunting task. Careful consideration

More information

GUIDELINES FOR HINGED AND BOLTED MANWAY ASSEMBLY

GUIDELINES FOR HINGED AND BOLTED MANWAY ASSEMBLY GUIDELINES FOR HINGED AND BOLTED MANWAY ASSEMBLY Assembly Instructions for the Flammable Liquid Industry Published by: Renewable Fuels Association Authored by: Watco Compliance Services, VSP Technologies,

More information

CH # 8. Two rectangular metal pieces, the aim is to join them

CH # 8. Two rectangular metal pieces, the aim is to join them CH # 8 Screws, Fasteners, and the Design of Non-permanent Joints Department of Mechanical Engineering King Saud University Two rectangular metal pieces, the aim is to join them How this can be done? Function

More information

A training course delivered at a company s facility by Matrix Engineering, an approved provider of Bolt Science Training

A training course delivered at a company s facility by Matrix Engineering, an approved provider of Bolt Science Training A training course delivered at a company s facility by Matrix Engineering, an approved provider of Bolt Science Training Following is an outline of the material covered in the training course. Each person

More information

Failure of Engineering Materials & Structures. Code 34. Bolted Joint s Relaxation Behavior: A FEA Study. Muhammad Abid and Saad Hussain

Failure of Engineering Materials & Structures. Code 34. Bolted Joint s Relaxation Behavior: A FEA Study. Muhammad Abid and Saad Hussain Failure of Engineering Materials & Structures Code 3 UET TAXILA MECHNICAL ENGINEERING DEPARTMENT Bolted Joint s Relaxation Behavior: A FEA Study Muhammad Abid and Saad Hussain Faculty of Mechanical Engineering,

More information

1/2/2016. Lecture Slides. Screws, Fasteners, and the Design of Nonpermanent Joints. Reasons for Non-permanent Fasteners

1/2/2016. Lecture Slides. Screws, Fasteners, and the Design of Nonpermanent Joints. Reasons for Non-permanent Fasteners Lecture Slides Screws, Fasteners, and the Design of Nonpermanent Joints Reasons for Non-permanent Fasteners Field assembly Disassembly Maintenance Adjustment 1 Introduction There are two distinct uses

More information

REVIEW OF THREADED FASTENERS LOOSENING AND ITS EFFECTS

REVIEW OF THREADED FASTENERS LOOSENING AND ITS EFFECTS REVIEW OF THREADED FASTENERS LOOSENING AND ITS EFFECTS Mr. Kale Amol Scholar, M.E. Mechanical Design, V. V. P. Institute of Engineering and Technology, Solapur, India Prof. S. M. Shaikh A.P. Mechanical

More information

Practical Bolting and Gasketing for the Non Standard-Flanged Joint

Practical Bolting and Gasketing for the Non Standard-Flanged Joint Practical Bolting and Gasketing for the Non Standard-Flanged Joint Points of Discussion Introduction Joint Analysis Existing Flange Data Machining Procedure Bolting Radial Shear Available Gasket Styles

More information

D DAVID PUBLISHING. Analysis of Leakage in Bolted-Flanged Joints Using Contact Finite Element Analysis. 1. Introduction.

D DAVID PUBLISHING. Analysis of Leakage in Bolted-Flanged Joints Using Contact Finite Element Analysis. 1. Introduction. Journal of Mechanics Engineering and Automation 5 (2015) 135-142 doi: 10.17265/2159-5275/2015.03.001 D DAVID PUBLISHING Analysis of Leakage in Bolted-Flanged Joints Using Contact Finite Element Analysis

More information

MECH-100: Fundamentals of Precision Maintenance

MECH-100: Fundamentals of Precision Maintenance MECH-100: Fundamentals of Precision Maintenance Universal Technologies, Inc. Student Guide Page 1 Torquing Topic Goals... 3 Introduction... 4 JOINT PRELOAD... 4 BOLT PRELOAD... 6 PRELOAD SEQUENCING...

More information

Threaded Fasteners 2. Shigley s Mechanical Engineering Design

Threaded Fasteners 2. Shigley s Mechanical Engineering Design Threaded Fasteners 2 Bolted Joint Stiffnesses During bolt preload bolt is stretched members in grip are compressed When external load P is applied Bolt stretches further Members in grip uncompress some

More information

Finite Element Modeling of Early Stage Self-loosening of Bolted Joints Haoliang Xu 1, a, Lihua Yang 1, b,, Lie Yu 1,2, c

Finite Element Modeling of Early Stage Self-loosening of Bolted Joints Haoliang Xu 1, a, Lihua Yang 1, b,, Lie Yu 1,2, c International Conference on Information Sciences, Machinery, Materials and Energy (ICISMME 2015) Finite Element Modeling of Early Stage Self-loosening of Bolted Joints Haoliang Xu 1, a, Lihua Yang 1, b,,

More information

Hydraulic Tensioner Assembly: Load Loss Factors and Target Stress Limits

Hydraulic Tensioner Assembly: Load Loss Factors and Target Stress Limits Proceedings of the ASME 214 Pressure Vessels & Piping Conference PVP214 July 2-24, 214, Anaheim, California, USA PVP214-28685 Hydraulic Tensioner Assembly: Load Loss Factors and Target Stress Limits Warren

More information

Fluid Sealing Association

Fluid Sealing Association Fluid Sealing Association STANDARD FSA-MG-501-02 STANDARD TEST METHOD FOR INWARD BUCKLING OF SPIRAL-WOUND GASKETS 994 Old Eagle School Road, Suite 1019 Wayne, Pennsylvania 19087-1866 Phone: (610) 971-4850

More information

UNIVERSITY OF THESSALY

UNIVERSITY OF THESSALY UNIVERSITY OF THESSALY MECHANICAL ENGINEERING DEPARTMENT Instructor: Dr. S.D. Chouliara e-mail: schoul@uth.gr MACHINE ELEMENTS Task 2 1. Let the bolt in the following Figure be made from cold-drawn steel.

More information

Fasteners. Fastener. Chapter 18

Fasteners. Fastener. Chapter 18 Fasteners Chapter 18 Material taken from Mott, 2003, Machine Elements in Mechanical Design Fastener A fastener is any device used to connect or join two or more components. The most common are threaded

More information

MECH 344/M Machine Element Design

MECH 344/M Machine Element Design 1 MECH 344/M Machine Element Design Time: M 14:45-17:30 Lecture 6 Contents of today's lecture Introduction Multitude of fasteners are available raging from nuts and bots to different varieties. Only a

More information

Live Loading Of Flange Joints To Prevent Leaks And Reduce Fugitive Emissions. W.C.Offutt P.E.

Live Loading Of Flange Joints To Prevent Leaks And Reduce Fugitive Emissions. W.C.Offutt P.E. Live Loading Of Flange Joints To Prevent Leaks And Reduce Fugitive Emissions W.C.Offutt P.E. Bolted flange joint leaks have always been a problem. In the past, little was done to try to eliminate the problem.

More information

A training course delivered to Engineers and Designers, at a company s premises, on the technical aspects of bolting.

A training course delivered to Engineers and Designers, at a company s premises, on the technical aspects of bolting. A training course delivered to Engineers and Designers, at a company s premises, on the technical aspects of bolting. Consulting Analysis Services Software Training An outline is presented below of the

More information

Figure 11 Flange Adapter and Back-Up Ring

Figure 11 Flange Adapter and Back-Up Ring Flange Adapters Standard back-up rings are Standard back-up rings are convoluted ductile iron with AWWA C207 150 lb drilling. One edge of the back-up ring bore must be radiused or chamfered. This edge

More information

The Stamina of Non-Gasketed, Flanged Pipe Connections

The Stamina of Non-Gasketed, Flanged Pipe Connections The Stamina of Non-Gasketed, Flanged Pipe Connections M. Abid 1, D. H. Nash 1 and J. Webjorn 2 Most international design codes for pressure equipment, such as BS 5500, ASME VIII and the new European standard

More information

Copyright. Michael Joseph Gilroy. May 1997

Copyright. Michael Joseph Gilroy. May 1997 Copyright by Michael Joseph Gilroy May 1997 Tightening of High Strength Metric Bolts by Michael Joseph Gilroy, B.S. Thesis Presented to the Faculty of the Graduate School of The University of Texas at

More information

Bolt Tensioning. This document is a summary of...

Bolt Tensioning. This document is a summary of... If you want to learn more about best practice machinery maintenance, or world class mechanical equipment maintenance and installation practices, follow the link to our Online Store and see the Training

More information

Reliance SG800 Series Steel Water Gage Valves

Reliance SG800 Series Steel Water Gage Valves Installation, Operation, & Maintenance Instructions R500.541D1 10/16/2016 Reliance SG800 Series Steel Water Gage Valves Note: Design variations in Steel Water Gage Valves necessitate typical illustrations,

More information

a) If a bolt is over-tightened, which will fail first the bolt, or the plastic?

a) If a bolt is over-tightened, which will fail first the bolt, or the plastic? 2.2.75 6.525 Problem Set 3: Solutions to ME problems Fall 2013 Jacob Bayless Problem 1: Bolted joint a) If a bolt is over-tightened, which will fail first the bolt, or the plastic? The bolt is made of

More information

TORQUE DESIGN, ANALYSIS AND CHARACTERIZATION OF CRITICAL FASTENERS IN DIESEL ENGINES

TORQUE DESIGN, ANALYSIS AND CHARACTERIZATION OF CRITICAL FASTENERS IN DIESEL ENGINES TORQUE DESIGN, ANALYSIS AND CHARACTERIZATION OF CRITICAL FASTENERS IN DIESEL ENGINES ROHIT PATIL 1, MUKUND NALAWADE 2, NITIN GOKHALE 3. 1 P.G. Student, Department of Mechanical Engineering, Vishwakarma

More information

ERECTION & CONSTRUCTION

ERECTION & CONSTRUCTION ERECTION & CONSTRUCTION High Strength Structural Bolting Author: Clark Hyland Affiliation: Steel Construction New Zealand Inc. Date: 24 th August 2007 Ref.: Key Words High Strength Bolts; Property Class

More information

DXe SUBSEA WELLHEAD CONNECTORS

DXe SUBSEA WELLHEAD CONNECTORS DXe SUBSEA WELLHEAD CONNECTORS Illustration shown: DXe-3 Connector with DXe latching segment Upper Body Indicator Rod Ring Gasket Retainer Latch Segment Spreader Upper Split Ring Retractor Latch Port Ring

More information

bolts: G Cr-1/5Mo (A193 B7) 16 x M20 (EN ISO 4014) MPR GASKET 'SP' PETRO 4,0mm 363 x 323 x 4,5 mm (2 pieces)

bolts: G Cr-1/5Mo (A193 B7) 16 x M20 (EN ISO 4014) MPR GASKET 'SP' PETRO 4,0mm 363 x 323 x 4,5 mm (2 pieces) test condition: 20 C 44 bar load condition 1: 206 C 18 bar load condition 2: 210 C 26 bar bolts: G41400 1Cr-1/5Mo (A193 B7) 16 x M20 (EN ISO 4014) gasket: MPR GASKET 'SP' PETRO 4,0mm 363 x 323 x 4,5 mm

More information

Instruction Manual for installing

Instruction Manual for installing Instruction Manual for installing Preloaded (HSFG) Bolting with TurnaSure DIRECT TENSION INDICATORS CE Marked EN 14399-9 TurnaSure LLC TABLE OF CONTENTS Introduction... 1 Theory of Preloaded Bolting Assemblies...

More information

In normal joints, the clamping force should equal the working load. In gasketed joints, it should be sufficient to create a seal.

In normal joints, the clamping force should equal the working load. In gasketed joints, it should be sufficient to create a seal. Fastener Quality Act Information Unbrako offers this link to the National Institute of Standards homepage on the Fastener Quality Act as an aide to individuals who need detailed and complete information

More information

Reliance SG777 Series Steel Water Gage Valves

Reliance SG777 Series Steel Water Gage Valves Installation, Operation, & Maintenance Instructions R500.SG777 10/16/2016 Reliance SG777 Series Steel Water Gage Valves Note: Design variations in Steel Water Gage Valves necessitate typical illustrations,

More information

BOLT PRELOAD CONTROL FOR BOLTED FLANGE JOINT. Hirokazu TSUJI Department of Intelligent Mechanical Engineering, Tokyo Denki University Saitama, Japan

BOLT PRELOAD CONTROL FOR BOLTED FLANGE JOINT. Hirokazu TSUJI Department of Intelligent Mechanical Engineering, Tokyo Denki University Saitama, Japan Proceedings of PVP2002 2002 ASME Pressure Vessels and Piping Conference August 5-9, 2002, Vancouver, BC, Canada BOLT PRELOAD CONTROL FOR BOLTED FLANGE JOINT PVP2002-1094 Hirokazu TSUJI Department of Intelligent

More information

AN INNOVATIVE FEA METHODOLOGY FOR MODELING FASTENERS

AN INNOVATIVE FEA METHODOLOGY FOR MODELING FASTENERS AN INNOVATIVE FEA METHODOLOGY FOR MODELING FASTENERS MacArthur L. Stewart 1 1 Assistant Professor, Mechanical Engineering Technology Department, Eastern Michigan University, MI, USA Abstract Abstract Researchers

More information

SECTION EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING

SECTION EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING SECTION 230516 - EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and

More information

1. Enumerate the most commonly used engineering materials and state some important properties and their engineering applications.

1. Enumerate the most commonly used engineering materials and state some important properties and their engineering applications. Code No: R05310305 Set No. 1 III B.Tech I Semester Regular Examinations, November 2008 DESIGN OF MACHINE MEMBERS-I ( Common to Mechanical Engineering and Production Engineering) Time: 3 hours Max Marks:

More information

Vessels PIP VEEVJ001 Gasket Guidelines

Vessels PIP VEEVJ001 Gasket Guidelines March 2015 Vessels PIP VEEVJ001 PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES In an effort to minimize the cost of process industry facilities, this Practice has been prepared from the technical requirements

More information

Power Threads. Shigley s Mechanical Engineering Design

Power Threads. Shigley s Mechanical Engineering Design Power Threads Power screw Mechanics of Power Screws Used to change angular motion into linear motion Usually transmits power Examples include vises, presses, jacks, lead screw on lathe Fig. 8 4 Square

More information

Mechanical joints. Major diameter Mean diameter Minor diameter Pitch p chamfer. Root Crest. Thread angle 2a. Dr. Salah Gasim Ahmed YIC 1

Mechanical joints. Major diameter Mean diameter Minor diameter Pitch p chamfer. Root Crest. Thread angle 2a. Dr. Salah Gasim Ahmed YIC 1 Screw fasteners Helical threads screws are an extremely important mechanical invention. It is the basis of power screws (which change angular motion to linear motion) and threaded fasteners such as bolts,

More information

UNDERSTANDING TORQUE -ANGLE SIGNATURES OF BOLTED JOINTS

UNDERSTANDING TORQUE -ANGLE SIGNATURES OF BOLTED JOINTS SENSORS FOR RESEARCH & DEVELOPMENT WHITE PAPER #23 UNDERSTANDING TORQUE -ANGLE SIGNATURES OF BOLTED JOINTS THREADED FASTENER TORQUE-ANGLE CURVE ANALYSIS Written By Jeff Drumheller www.pcb.com info@pcb.com

More information

TR2000 Piping and Valve Materials under PED. The usage of this standard based on ASME B31.3

TR2000 Piping and Valve Materials under PED. The usage of this standard based on ASME B31.3 Memo 2010-12-01 (rev. 2) To Copy From Trælnes, Hege Subject TR2000 Piping and Valve Materials under PED. The usage of this standard based on ASME B31.3 1 Introduction and objective Reference is made to

More information

Finite Element Analysis per ASME B31.3

Finite Element Analysis per ASME B31.3 Brief Discussion: Split-Body 12in Butterfly valve, Ph: 520-265-3657 Page 1 of 13 Finite Element Analysis per ASME B31.3 Prepared by: Michael Rodgers, P.Eng. Date: July 16, 2010 Page 2 of 13 Section Headings:

More information

3-D Finite Element Analysis of Bolted Joint Using Helical Thread Model

3-D Finite Element Analysis of Bolted Joint Using Helical Thread Model 3-D Finite Element Analysis of Bolted Joint Using Helical Thread Model Shaik Gousia Yasmin 1, P. Punna Rao 2, Kondaiah Bommisetty 3 1 M.Tech(CAD/CAM), Nimra College of Engineering & Technology, Vijayawada,

More information

HEATEC TEC-NOTE Publication No

HEATEC TEC-NOTE Publication No HEATEC TEC-NOTE Publication No. 6-04-126 How to prevent leaks in pipe joints at HMA plants This document is intended as a guide for installing pipe joints on Heatec products at HMA (hot mix asphalt) plants.

More information

SIGHT GLASS. Sight glass components allow operators to safely observe processes inside tanks, pipes, reactors and vessels.

SIGHT GLASS. Sight glass components allow operators to safely observe processes inside tanks, pipes, reactors and vessels. SIGHT GLASS Sight glass components allow operators to safely observe processes inside tanks, pipes, reactors and vessels. SIGHT GLASS Sight flow indicator. A sight flow indicator is used in process pipelines

More information

Design of Machine Elements I Prof. G. Chakraborty Department of Mechanical Engineering Indian Institute of Technology Kharagpur

Design of Machine Elements I Prof. G. Chakraborty Department of Mechanical Engineering Indian Institute of Technology Kharagpur Design of Machine Elements I Prof. G. Chakraborty Department of Mechanical Engineering Indian Institute of Technology Kharagpur Lecture - 22 Rivet Joints Dear student, welcome to the video lectures on

More information

STRUCTURAL TIMBER DESIGN

STRUCTURAL TIMBER DESIGN STRUCTURAL TIMBER DESIGN to Eurocode 5 2nd Edition Jack Porteous BSc, MSc, DIC, PhD, CEng, MIStructE, FICE Director lack Porteous Consultancy and Abdy Kernlani BSc, MSc, PhD, CEng, FIStructE, FIWSc Professor

More information

Calculations per ABS Code along with ASME Sec. VIII Div.1 XXXX

Calculations per ABS Code along with ASME Sec. VIII Div.1 XXXX Calculations per ABS Code along with ASME Sec. VIII Div.1 XXXX Grouping of Boilers and Pressure Vessels: PART 4 CHAPTER 4 SECTOIN 1 Table #2 and #3 >> Group II PART 4 CHAPTER 4 SECTOIN 1 Appendix 1 Rules

More information

Instruction Manual for installing

Instruction Manual for installing Instruction Manual for installing Preloaded (HSFG) Bolting with TurnaSure DIRECT TENSION INDICATORS TurnaSure LLC TABLE OF CONTENTS Introduction... 1 Theory of Preloaded Bolting Assemblies... 2 Tightening

More information

Tightening Strategies for Bolted Joints Methods for Controlling and Analyzing Tightening

Tightening Strategies for Bolted Joints Methods for Controlling and Analyzing Tightening WHITE PAPER Tightening Strategies for Bolted Joints Methods for Controlling and Analyzing Tightening By Ralph S. Shoberg visit us online at www.pcb.com Toll Free in USA 800-828-8840 716-684-0001 Tightening

More information

Welded connections Welded connections are basically the same design in AISI as in AISC. Minor differences are present and outlined below.

Welded connections Welded connections are basically the same design in AISI as in AISC. Minor differences are present and outlined below. Cold-Formed Steel Design for the Student E. CONNECTIONS AND JOINTS E1 General Provisions Connections shall be designed to transmit the maximum design forces acting on the connected members. Proper regard

More information

Proposed changes on NZS 3404 specified part-turn method of tensioning high strength friction grip (HSFG) property class 8.8 bolts

Proposed changes on NZS 3404 specified part-turn method of tensioning high strength friction grip (HSFG) property class 8.8 bolts Proposed changes on NZS 3404 specified part-turn method of tensioning high strength friction grip (HSFG) property class 8.8 bolts S. Ramhormozian, G.C. Clifton Department of Civil Engineering, University

More information

Slip and yield resistance of friction type of high strength bolted connections with over-sized holes

Slip and yield resistance of friction type of high strength bolted connections with over-sized holes IABSE-JSCE Joint Conference on Advances in Bridge Engineering-II, August 8-10, 2010, Dhaka, Bangladesh. ISBN: 978-984-33-1893-0 Amin, Okui, Bhuiyan (eds.) www.iabse-bd.org Slip and yield resistance of

More information

FORM A-1P MANUFACTURER'S DATA REPORT FOR PLATE HEAT EXCHANGERS As Required by the Provisions of the ASME Code Rules, Section VIII, Division 2

FORM A-1P MANUFACTURER'S DATA REPORT FOR PLATE HEAT EXCHANGERS As Required by the Provisions of the ASME Code Rules, Section VIII, Division 2 Page of FORM A-1P MANUFACTURER'S DATA REPORT FOR PLATE HEAT EXCHANGERS As Required by the Provisions of the ASME Code Rules, Section VIII, Division 2 1. Manufactured and certified by: 2. Manufactured for:

More information

AN, MS, NAS Bolts. AN3 20 bolts are identified by a multi-part code:

AN, MS, NAS Bolts. AN3 20 bolts are identified by a multi-part code: AN, MS, NAS Bolts Most bolts used in aircraft structures are either (a) general-purpose, (b) internal-wrenching or (c) close-tolerance AN, NAS, or MS bolts. Design specifications are available in MIL-HDBK-5,

More information

A. Compatibility: Products shall be suitable for piping service fluids, materials, working pressures, and temperatures.

A. Compatibility: Products shall be suitable for piping service fluids, materials, working pressures, and temperatures. SECTION 22 05 16 LOOPS FOR PLUMBING PIPING PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification

More information

A Tale of Tearouts: Web Supplement

A Tale of Tearouts: Web Supplement A Tale of Tearouts: Web Supplement This is a supplement to the May 2017 Modern Steel Construction article A Tale of Tearouts (available at www.modernsteel.com/archives). The information presented here

More information

Modeling Multi-Bolted Systems

Modeling Multi-Bolted Systems Modeling Multi-Bolted Systems Jerome Montgomery Siemens Power Generation Abstract Modeling a single bolt in a finite element analysis raises questions of how much complexity to include. But, modeling a

More information

Development of a Numerical Technique for the Static Analysis of Bolted Joints by the FEM

Development of a Numerical Technique for the Static Analysis of Bolted Joints by the FEM , July 3-5, 2013, London, U.K. Development of a Numerical Technique for the Static Analysis of Bolted Joints by the FEM D. Valladares, M. Carrera, L. Castejon, C. Martin Abstract The use of numerical simulation

More information

SYGEF Standard SYGEF Plus PVDF Flanges

SYGEF Standard SYGEF Plus PVDF Flanges Installation Instructions 2009 Volume, Rev 02 PM451 SYGEF Standard SYGEF Plus PVDF Flanges Please read all instructions before attempting to install flanges. Introduction When to Use a Flange Flanges may

More information

This specification describes the minimum requirements for service water piping systems (ie: cooling water, process water, etc.), located on surface.

This specification describes the minimum requirements for service water piping systems (ie: cooling water, process water, etc.), located on surface. SPEC-3500 1/9 1.0 PURPOSE This specification describes the minimum requirements for service water piping systems (ie: cooling water, process water, etc.), located on surface. Note: This specification does

More information

DESIGN OF MACHINE MEMBERS-I

DESIGN OF MACHINE MEMBERS-I Code No: R31035 R10 Set No: 1 JNT University Kakinada III B.Tech. I Semester Regular/Supplementary Examinations, Dec - 2014/Jan -2015 DESIGN OF MACHINE MEMBERS-I (Mechanical Engineering) Time: 3 Hours

More information

TECH SHEET PEM - REF / THREAD GALLING. SUBJECT: Root causes and guidelines to promote optimized fastener performance TECH SHEET

TECH SHEET PEM - REF / THREAD GALLING. SUBJECT: Root causes and guidelines to promote optimized fastener performance TECH SHEET PEM - REF / THREAD GALLING SUBJECT: Root causes and guidelines to promote optimized fastener performance Introduction Occasionally, users of our self-clinching fasteners encounter thread binding issues

More information

ENGINEERING FUNDAMENTALS

ENGINEERING FUNDAMENTALS SENSORS FOR RESEARCH & DEVELOPMENT WHITE PAPER #20 ENGINEERING FUNDAMENTALS OF THREADED FASTENER DESIGN AND ANALYSIS Written By Ralph S. Shoberg www.pcb.com info@pcb.com 800.828.8840 MTS SYSTEMS CORPORATION

More information

Big Bolts Better? Choices for Performance and Economy

Big Bolts Better? Choices for Performance and Economy 8 THE DISTRIBUTOR S LINK Vol. 27, No. 1, Winter 2004 About the Author/BENGT BLENDULF Bengt Blenduif is the president of Clemson EduPro, Inc. and is a professional educator specializing in fastener engineering

More information

Effect of Bolt Layout on the Mechanical Behavior of Four Bolted Shear Joint

Effect of Bolt Layout on the Mechanical Behavior of Four Bolted Shear Joint Effect of Bolt Layout on the Mechanical Behavior of Four Bolted Shear Joint using Three Dimensional Finite Effect of Bolt Layout on the Mechanical Behavior of Four Bolted Shear Joint using Three Dimensional

More information

Technical information

Technical information Technical information 53245 Control of bolted connections The assembled screws are to be checked for the desired screwing results in order to ensure the function of the connection for the long term. Depending

More information

Hours / 100 Marks Seat No.

Hours / 100 Marks Seat No. 17610 15116 4 Hours / 100 Seat No. Instructions (1) All Questions are Compulsory. (2) Answer each next main Question on a new page. (3) Illustrate your answers with neat sketches wherever necessary. (4)

More information

BOLTCALC Program. problems. User Guide. Software for the Analysis of Bolted Joints

BOLTCALC Program. problems. User Guide. Software for the Analysis of Bolted Joints User Guide BOLTCALC Program Software for the Analysis of Bolted Joints problems BOLTCALC is produced by Bolt Science Limited Bolt Science provides analytical solutions to bolting problems www.boltscience.com

More information

METRIC FASTENERS 1520 METRIC FASTENERS

METRIC FASTENERS 1520 METRIC FASTENERS 1520 METRIC FASTENERS METRIC FASTENERS A number of American National Standards covering metric bolts, screws, nuts, and washers have been established in cooperation with the Department of Defense in such

More information

WITHDRAWAL AND LATERAL STRENGTH OF THREADED NAILS

WITHDRAWAL AND LATERAL STRENGTH OF THREADED NAILS 238 WITHDRAWAL AND LATERAL STRENGTH OF THREADED NAILS Douglas R. Rammer, Donald A. Bender, and David G. Pollock An experimental study on the performance of threaded nails was conducted to understand and

More information

MECHANICAL ASSEMBLY John Wiley & Sons, Inc. M. P. Groover, Fundamentals of Modern Manufacturing 2/e

MECHANICAL ASSEMBLY John Wiley & Sons, Inc. M. P. Groover, Fundamentals of Modern Manufacturing 2/e MECHANICAL ASSEMBLY Threaded Fasteners Rivets and Eyelets Assembly Methods Based on Interference Fits Other Mechanical Fastening Methods Molding Inserts and Integral Fasteners Design for Assembly Mechanical

More information

Technical Manual. ETP-CLASSIC incl type R. Content

Technical Manual. ETP-CLASSIC incl type R. Content Technical Manual ETP-CLASSIC incl type R Content Technical parts description...2 Mounting/dismantling tips...4 Design suggestions...7 Tolerances...13 Central bolt...15 Torsional stiffness...16 Screw pitch

More information

Reduction of Stress Concentration in Bolt-Nut Connectors

Reduction of Stress Concentration in Bolt-Nut Connectors Sriman Venkatesan Gary L. Kinzel 1 e-mail: kinzel.1@osu.edu Department of Mechanical Engineering, The Ohio State University, 650 Ackerman Road, Suite 255, Columbus, OH 43201 Reduction of Stress Concentration

More information

An experimental investigation on crack paths and fatigue behaviour of riveted lap joints in aircraft fuselage

An experimental investigation on crack paths and fatigue behaviour of riveted lap joints in aircraft fuselage An experimental investigation on crack paths and fatigue behaviour of riveted lap joints in aircraft fuselage A. Skorupa 1, M. Skorupa 1, T. Machniewicz 1, A. Korbel 1 1 AGH University of Science and Technology,

More information

High Strength Weathering Steel Structural Bolting Assemblies PC 8.8 Hex. Cooper & Turner Ltd. Worldclass products for a.

High Strength Weathering Steel Structural Bolting Assemblies PC 8.8 Hex. Cooper & Turner Ltd. Worldclass products for a. Cooper & Turner Ltd Worldclass products for a worldwide market 2015 Cooper & Turner Ltd Sheffield Road Sheffield, S9 1RS South Yorkshire England United Kingdom T: +44 (0) 114 256 0057 E: sales@cooperadnturner.co.uk

More information

HEICO FASTENING SYSTEMS. Simple Fast Reliable HEICO-TEC TENSION NUT

HEICO FASTENING SYSTEMS. Simple Fast Reliable HEICO-TEC TENSION NUT HEICO FASTENING SYSTEMS Simple Fast Reliable HEICO-TEC TENSION NUT WWW.HEICO-TEC.COM HEICO-TEC TENSION NUT SIMPLE FAST RELIABLE For a secure joint with a HEICO-TEC tension nut, no electric, hydraulic,

More information

TECH SHEET PEM - REF / AXIAL THREAD CLEARANCE. SUBJECT: Method for providing adequate axial thread clearance

TECH SHEET PEM - REF / AXIAL THREAD CLEARANCE. SUBJECT: Method for providing adequate axial thread clearance SUBJECT: Method for providing adequate axial thread clearance In our long history of working with customers in the application of our self-clinching nuts, PennEngineering has seen numerous instances of

More information

This specification describes the minimum requirements for piping systems for the following service:

This specification describes the minimum requirements for piping systems for the following service: SPEC-3004 1/7 1.0 APPLICATION This specification describes the minimum requirements for piping systems for the following service: Service Water Design Conditions Operating Conditions 10 PSIG @ 33 o F to

More information

NUMERICAL ANALYSIS OF SCREW ANCHOR FOR CONCRETE

NUMERICAL ANALYSIS OF SCREW ANCHOR FOR CONCRETE VIII International Conference on Fracture Mechanics of Concrete and Concrete Structures FraMCoS-8 J.G.M. Van Mier, G. Ruiz, C. Andrade, R.C. Yu and X.X. Zhang (Eds) NUMERICAL ANALYSIS OF SCREW ANCHOR FOR

More information

ISO INTERNATIONAL STANDARD. Fasteners Torque/clamp force testing. Éléments de fixation Essais couple/tension. First edition

ISO INTERNATIONAL STANDARD. Fasteners Torque/clamp force testing. Éléments de fixation Essais couple/tension. First edition Provläsningsexemplar / Preview INTERNATIONAL STANDARD ISO 16047 First edition 2005-02-01 Fasteners Torque/clamp force testing Éléments de fixation Essais couple/tension Reference number ISO 16047:2005(E)

More information

Module 10 : Improvement of rock mass responses. Content

Module 10 : Improvement of rock mass responses. Content IMPROVEMENT OF ROCK MASS RESPONSES Content 10.1 INTRODUCTION 10.2 ROCK REINFORCEMENT Rock bolts, dowels and anchors 10.3 ROCK BOLTING MECHANICS Suspension theory Beam building theory Keying theory 10.4

More information

Sprocket and Hub Bolt Analysis for Slip-Critical Bolted Applications in Mining and Mineral Processing Equipment

Sprocket and Hub Bolt Analysis for Slip-Critical Bolted Applications in Mining and Mineral Processing Equipment Title: Sprocket and Hub Bolt Analysis for Mining and Mineral Processing Case Study Section: FEA Keywords: Bolted joints, bolted connections, slip critical bolt design, bolt preload, FEA of bolted joints,

More information

Product Guide Specification

Product Guide Specification Zurn Industries, LLC November 2014 1801 Pittsburgh Avenue Erie, PA 16502 Toll Free (855) 663-9876 Phone (814) 455-0921 Fax (814) 871-6141 Website www.zurn.com Product Guide Specification Specifier Notes:

More information

Structural Bolting. Notice the Grade 5 has a much smaller head configuration and a shorter shank then the grade A325 structural bolt.

Structural Bolting. Notice the Grade 5 has a much smaller head configuration and a shorter shank then the grade A325 structural bolt. Structural Bolting ASTM F3125/F3125M is a structural bolt specification covering inch and metric bolt grades. This specification contains 4 inch series bolting grades: A325, F1852, A490, and F2280. These

More information

Fasteners Table of Contents

Fasteners Table of Contents EML2322L Design & Manufacturing Laboratory Fasteners Table of Contents I. Copyright Notice II. Why Care? 1. Definitions 2. Common Fastener Types 3. Fastener Nomenclature 4. Fastener Thread Types 5. Rolled

More information

TECHNICAL SPECIFICATION FOR. CONTACT WIRE HARD-DRAWN COPPER 161mm2

TECHNICAL SPECIFICATION FOR. CONTACT WIRE HARD-DRAWN COPPER 161mm2 Engineering Specification Electrical TECHNICAL SPECIFICATION FOR CONTACT WIRE HARD-DRAWN COPPER 161mm2 Version: 2 Issued: May 2018 Owner: Engineering Approved by: Andrew Russack, Head of Engineering Electrical

More information

Methods to predict fatigue in CubeSat structures and mechanisms

Methods to predict fatigue in CubeSat structures and mechanisms Methods to predict fatigue in CubeSat structures and mechanisms By Walter Holemans (PSC), Floyd Azure (PSC) and Ryan Hevner (PSC) 08-09 August 2015 12th Annual Summer CubeSat Developers' Workshop 08-09

More information

NEW APPROACH TO THE PIPE TO GUSSET PLATE CONNECTION

NEW APPROACH TO THE PIPE TO GUSSET PLATE CONNECTION NEW APPROACH TO THE PIPE TO GUSSET PLATE CONNECTION Prepared by Liftech Consultants Inc. Quality Assurance Review for Liftech Consultants Inc. Author: Kenton Lee Structural Engineer Editor: Erik Soderberg

More information

Planning, storage, installation and maintenance instructions for rubber expansion joints

Planning, storage, installation and maintenance instructions for rubber expansion joints 7 E1 Planning, storage, installation and maintenance instructions for rubber expansion joints Planning Mounting of expansion joints, sliding points and fixed points The pressure in the line gives rise

More information

An Alternative Formulation for Determining Stiffness of Members with Bolted Connections

An Alternative Formulation for Determining Stiffness of Members with Bolted Connections An Alternative Formulation for Determining Stiffness of Members with Bolted Connections Mr. B. Routh Post Graduate Student Department of Civil Engineering National Institute of Technology Agartala Agartala,

More information

Joint Preparation prior to Tensioning: General:

Joint Preparation prior to Tensioning: General: `Hydraulic Tensioner Procedure for 50% tensioning: Document: PWL-HTS-101 Joint Preparation prior to Tensioning: General: Clean Flanges and check for scars on the flange surface area Check studs and nuts

More information

3 Emergency Breakaway Coupling

3 Emergency Breakaway Coupling SM64227 July 2008 Applicable addition manuals: N/A Aerospace Group Conveyance Systems Division Carter Ground Fueling Maintenance & Repair Manual 3 Emergency Breakaway Coupling Model 64227 Table of Contents

More information

Tension Indicating Fasteners for bolts, anchors and studs

Tension Indicating Fasteners for bolts, anchors and studs Tension Indicating Fasteners for bolts, anchors and studs The proven path to accurate bolt tensioning, used on major structures worldwide for over 50 years - now manufactured to a highly engineered ASTM

More information