Specification of flexible metal hose pipe Annular flexible metal hose pipe 12≤DN≤800DescriptionThe corrugated flexible metal hose pipe is made of stainless steel strip by the unit, automatic cutting, rolling,TIG welding, corrugated froming.H Type corrugated flexible body with a continuous circleline

Specification of flexible metal hose pipeSpiral flexible metal hose pipe 6≤DN≤63.5DescriptionThe corrugated flexible metal hose pipe is made of stainless steel strip by the unit, automatic cutting, rolling, TIG welding, corrugated froming, all the processes are finished in one production line. Spira

Bellows Expansion Joint Torsional Deflection / Combined Deflections/ Cyclic Deflections Torsional Deflection Torsion refers to twisting one end of the bellows with respect to the other end, about the bellows centerline. Expansion joints are not normally expected to accept torsional deflection,

Expansion Joint Lateral Deflection & Angular Deflection Lateral Deflection Lateral refers to the direction perpendicular to the centerline of the expansion joint(in any plane). Other terms for this deflection are PARALLEL OFFSET and TRANSVERSE. This movement occurs with both of the ends of the expan

Bellows Type Deflections --- Axial Deflection In order to properly apply expansion joints to piping systems, it is necessary that both the piping specialist and the expansion joint designer each understand not only how the piping flexes, but how the various expansion joint types function and what

Bellows DesignThe bellows is the flexible element of expansion joint.It must be strong enough circumferentially to withstand the pressure and flexible enough longitudinally to accept the deflections for which it was designed , and as repetitively as necessary with a minimum resistance. This strength

Characteristic of Bellows Designs Single Ply Typical Application * Shell and tube heat exchangers * Clamshell bellows * Penetration seals * HVAC piping Characteristics * One ply * Relatively thick * Robust * Higher spring rate * High lateral stiffness * Relatively cheap * Good NDE when installed

Characteristics of Bellows Designs Multi-Ply * Each ply made from welded tube * Each ply leak proof * Wetted ply can be made of different (higher alloy) material for enhanced corrosion resistance * Allowance for weep holes Multi-ply (Spiral)* Inner/Outer plies welded* No sudden leak* Wetted

Tied Expansion Joint Designs Tied Expansioin Joints Most Common Types:Hinged Expansion Joints In-line pressure Balance Expansion JointGimbaled Expansion Joints Tied Single & Universal Expansion Joints Features:Single or dual bellows with restraining hardware Typically used for high pressure servic

Untied Expansion Joint Designs Untied Expansion Joints Most Common Types: Axial Expansion Joints Double Expansion JointInternally Guided Expansion joint Untied Universal Expansion Joints Pressure Balanced Expansion Joint Features :Single or dual bellows with installation fittings only Commonly used