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PIPE EXPANSION JOINTSScan this QR Code16DN125 100 CHOTWATERMovement AbsorptionPipe expansion joints provide axial movement absorption and maintain the pipeline security. A heating pipeline system at90/70 C causes approximately 3 mm of movement for each floor of the buildings. For the buildings higher than 10 floors,use of the pipe expansion joints becomes compulsory in order to absorbe total expansion amount. Pipe expansion jointapplication must be repeated for each section between 8-10 floors.Advantages of Pipe Expansion Joints They prevent damage to pipelines result of the line movements They absorb the possible noises and provide convenience for the users They are installed easily and provide time and money saving They have a compact and decorative design that reduces the waste of space They help to protect equipment from stress due to misalignmentApplication Areas HVAC piping linesDESIGN (EN 14917)BodyAluminium external pipe or Stainless steel (optional)Bellow MaterialStainless Steel AISI 316L & 321Connection TypesWelded Ended & ThreadedInner SleeveBuilt in internal pipe (St 37.2) operates like inner sleeveOperation ConditionsOperating Temperature -10 C/ 100 COperating PressureStandard pressure rating is PN16Can be produced with different pressure ratesPN corresponds to the allowable operating pressure at room temperatureImportantStandard models are produced as un-restrained, fixed points should be created as to withstand springing force as wellas pressure thrust caused by the system pressure. For detailed information, get in contact with Ayvaz’s expert sales team.We strongly advise against the use of expansion joints and bellows for misalignment. Torsion on bellow parts are not desirable and should be eliminated.27
PIPE EXPANSION JOINTSAYVAZ-CAD/ Resim üzerinden ölçü almayınız.AYVAZ-CAD/ Do Not Take Measurements From The Drawing24Threaded, Pipe ExpansionJoints3TypeMovement150mm (-45/ 5)BKD-50Available Size (inch)11/2”-2”50mm (-35/ 15)AYVAZ-CAD/ Resim üzerinden ölçü almayınız.AYVAZ-CAD/DoüzerindenNot TakeFrom The DrawingAYVAZ-CAD/ Resimölçü Measurementsalmayınız.Pressure ClassAYVAZ-CAD/ Do Not Take Measurements From The DBCSWCLDBellows InformationSizeInner DiameterAxial Movement mmEffective Areacm²Axial SpringRate N/mmLCode21,3 5/-457,518383229070202005000226,9 5/-457,51838322907020200500041”33,7 5/-45111648412857020200500061 1/4”42,2 5/-4517,819605032070202005000848,3 5/-452622756532070202005001060,3 5/-45262275653207020200500122”D 120Açıya komşu0 10 50olan düz kenar 10 50 120 400uzunluğu(mm.) * Allthe dimensions in the table are given in “mm“. - 1 - 30' - 20' - 10' alterations and deviations resulting from the manufacturing process without giving any notification.** Subjectto technicalReduction Factors for PressureTemperature CReductionFactor KpTemperature CReductionFactor ��1 1/2”68ØD3/4”GENEL AÇI TOLERANSI DIN 7168İNCE / ORTABKD-50Pressure reduction factorThe reduction factor is used to define thedesign pressure [PS] where temperaturesexceed 20 C. It compensates for the decayin material mechanical properties at elevatedtemperatures. The calculated pressure is lowerthan the nominal pressure of the standard item.Calculation: PS PN x Kp
PIPE EXPANSION JOINTSAYVAZ-CAD/ Resim üzerinden ölçü almayınız.AYVAZ-CAD/ Do Not Take Measurements From The Drawing12TypeWelded Ends,Pipe ExpansionJoints43AvailableSize (DN)MovementBKKB-50Welded Ends, Pipe Expansion Joints5Pressure Class(PN)50mm (-45/ 5)15-50ölçü almayınız.AYVAZ-CAD/ Resim üzerinden2BKKB-5050mm (-35/ 15)34Available5Size (DN)Pressure AD/ Resim üzerinden ölçü almayınız.AYVAZ-CAD/ Do Not Take Measurements From The Drawing216AYVAZ-CAD/ Do Not Take Measurements From The DrawingType1AYVAZ-CAD/ Resim üzerinden ölçü almayınız.AYVAZ-CAD/ Do Not Take Measurements From The Drawing1L2345CLADBGENEL AÇI TOLERANSI DIN 7168Açıya komşuolan düz kenaruzunluğu(mm.)0 10 10 50 50 120 120 400PIPETYPE EXPANSION JOINT WITH - 1 - 30' - 20' - 10'THREADED ENDS G1/2"İNCE / ORTACDBellows InformationSizeInner DiameterAxial Movement mmDN1521,3 5/-45BKKB-50Effective Areacm²7,5GENEL AÇI TOLERANSIAxial Spring RateN/mmØDSLCode18382,5290702020030002DIN 7168Açıya komşuolan düz kenaruzunluğu(mm.)0 10 10 50İNCE / ORTA - 1 - 30' - 20' - 10' 50 120 120 400DN2026,9 5/-457,518383290702020030004DN2533,7 5/-451116483285702020030006DN3242,2 5/-4517,819603320702020030008DN4048,3 5/-4526320702020030010DN5060,3 5/-452622753320702020030012DN6576,1 15/-3557,5651072,933070202003001422 TYPE EXPANSION75 JOINT WITH3PIPETHREADED ENDS G1/2"DN8088,9 15/-3578,5911273,2330702020030016DN100114,3 15/-35126,71481583,6330702020030018DN125139,7 15/-35181,11991804330702020030020DN150168,3 15/-35266,42132204,5400702020030022* All the dimensions in the table are given in “mm“.** Subject to technical alterations and deviations resulting from the manufacturing process without giving any notification.Reduction Factors for PressureTemperature CReductionFactor KpTemperature CReductionFactor 5000,602500,715500,593000,686000,57Pressure reduction factorThe reduction factor is used to define thedesign pressure [PS] where temperaturesexceed 20 C. It compensates for the decayin material mechanical properties at elevatedtemperatures. The calculated pressure is lowerthan the nominal pressure of the standard item.Calculation: PS PN x Kp29
PIPE EXPANSION JOINTSTHERMAL EXTENSION CALCULATION &EXPANSION JOINT SELECTION(DN15-DN50)Min. Installation temperature -10 CMax. Operation temperature 95 CΔt 95-(-10) 105 CK Thermal expansion coefficient for carbon steel pipes 0,012mm/m CS 1,05 (5% safety factor)H max. floor height 3,3mN max. floor number 10ΔL total thermal expansion K x Δt x (H x N) x sΔL 0,012x105x33x1,05 43,65mmResult: Total expansion of the pipe (44,49mm) must beabsorbed by expansion joint that must have min. 44,49mmcompression capacity. Using single Ayvaz pipe expansionjoint with 50mm (-45/ 5) axial movement capacity issufficient enough to absorb total pipe’s expansion.FIXED POINTSingle Expansion Joint for The BuildingsUp To 17 Floors Pipe line of the top 3 floors in not necessary to be fixedas the pipe & branch equipment like elbows, tees etc would be sufficient to absorb the expansion. Similarly, 4floors from the bottom do not require the use of expansionjoint as the main connection at the basement (not fixed)would slide upward and downward to withstand thethermal movement.EXPANSION JOINT This basically means that the use of expansionjoints for the buildings with less than 7 floors isnot necessary.FIXED POINT Thermal movement of the pipesof the buildings up to 17 floorsis possible by using single15Ayvaz expansion joint.1413BASEMENT1211PIPE CONNECTIONNO FIXATION10090807060504030201BASEMENT30219181716
PIPE EXPANSION JOINTSAYVAZ PIPE EXPANSION JOINTS BUILDING INSTALLATION SCHEMEHEATING LINE FOR CARBON STEEL PIPELINES FOR BUILDINGS WITH 8-40 FLOORSDimensionsTotal Axial Mov. CapacityMax. Operating PressureFloor HeightOperating TemperatureMin. Ambient Temperature: DN15-DN50: 50mm (45mm comp/5mm ext.): 16 bar: 3-3,3m: 95 C: -10 C40393837363534333231302928272625242322212019831
PIPE EXPANSION JOINTSTHERMAL EXTENSION CALCULATION &EXPANSION JOINT SELECTION(DN65-DN150)Min. Installation temperature -10 CMax. Operation temperature 95 CΔt 95-(-10) 105 CK Thermal expansion coefficient for carbon steel pipes 0,012mm/m CS 1,05 (5% safety factor)H max. floor height 3,3mN max. floor number 8Δ total thermal expansion K x Δt x (H x N) x sΔL 0,012x105x26,4x1,05 34,92mmResult: Total expansion of the pipe (34,92mm) must beabsorbed by expansion joint that must have min. 34,92mmcompression capacity. Using single Ayvaz pipe expansionjoint with 50mm (-35/ 15) axial movement capacity issufficient enough to absorb total pipe’s expansion.FIXED POINTSingle Expansion Joint for The BuildingsUp To 15 Floors Pipe line of the top 3 floors in not necessary to be fixedas the pipe & branch equipment like elbows, tees etc would be sufficient to absorb the expansion. Similarly, 4floors from the bottom do not require the use of expansionjoint as the main connection at the basement (not fixed)would slide upward and downward to withstand thethermal movement.EXPANSION JOINT This basically means that the use of expansionjoints for the buildings with less than 7 floors isnot necessary.FIXED POINT Thermal movement of the pipesof the buildings up to 15 floorsis possible by using single15Ayvaz expansion joint.141312111009BASEMENTPIPE CONNECTIONNO FIXATION0807060504030201BASEMENT3218171622019
PIPE EXPANSION JOINTSAYVAZ PIPE EXPANSION JOINTS BUILDING INSTALLATION SCHEMEHEATING LINE FOR CARBON STEEL PIPELINES FOR BUILDINGS WITH 8-40 FLOORSDimensionsTotal Axial Mov. CapacityMax. Operating PressureFloor HeightOperating TemperatureMin. Ambient Temperature: DN65-DN150: 50mm (35mm comp/15mm ext.): 16 bar: 3-3,3m: 95 C: -10 C403938373635343332313029282726252423222120191833
Pipe expansion joints provide axial movement absorption and maintain the pipeline security. A heating pipeline system at 90/70 C causes approximately 3 mm of movement for each floor of the buildings. For the buildings higher than 10 floors, use of the pipe expansion joints becomes compulsory in order to absorbe total expansion amount.
