The end fitting material does not need to be the same as the hose – carbon steel fittings with stainless steel hose is a common choice. You may specify any weldable material for the end fitting or a screwed fitting welded to the hose and any threaded fitting coupled to it. Manufactured by Pegler with an integrated aluminium layer which allows the pipe to retain its shape when bent, our Tectite metal pipe coils come in lengths of 25 m, 50 m and 400 m. As the corrugated interior tube is seamless, stainless steel conduit is ideal for use with liquids or gasses under pressure, especially when fitted with external braiding. With first-rate corrosion resistance, a stainless steel flexible conduit is also ideal for use in chemically demanding situations – and this combination of factors makes them absolutely perfect for use in the petrochemical industry, or in steelmaking, chemical smelting, the automotive industry the power generation industry and dozens more.

Guo Hong, Yan Qu, Ye Xinhong, Yang Li, Gao Huan (2016) Key technologies of umbilical design, manufacturing and testing for subsea production systems. Nov 2016 The vertical load at the top of the bore within the width of the excavation is the upward friction forces and the soil cohesion along the limits of the soil prism directly above the bore subtracted from the weight of the prism above the bore. The 2cCtBt in Equation 6 represents the cohesion of undisturbed soils.Tectite Tube offers installers the flexible installation of plastic with none of the compromise, suitable for use on central heating and potable water Yijimei (2014) Application status and prospect analysis of umbilical cord cable in offshore deepwater oil platform [J]. China Shipbuilding, 2014 The Tectite Classic fitting provides the performance and reliability only metal can, an array of features ensure you leave the job today knowing it won’t cause you problems tomorrow In his analysis of external loads on buried pipe, Marston defined two main types of loading conditions of buried pipes, a ditch conduit (referred to as trench load condition in present day nomenclature), and a projecting conduit (referred to as an embankment condition in present day literature), Table 1. Flexible metal conduit can be made from other materials, including advanced alloys such as Monel and Inconel, or traditional performance metals like Bronze

Huan Gao, Hong Guo, Kefei Sun, Bo Li, Yan Qu (2011) Preliminary structural design of umbilical for underwater production system. Electric Wire & Cable Dec 2011 Equation 2 for rigid pipes indicates that the load on buried pipe is directly related to the trench width, i.e. the wider the trench, the higher the load. This relationship between trench width and load is applicable and equation 2 for trench condition can be used for all trench widths below that which gives a load equal to the load indicated by equation 4 for a positive embankment condition. The width at which the load equality for the two equations develops is referred to as the transition width. The embankment equation (4) must be used for rigid pipes beyond the transition width. Corroboration of Marston Load The range of stainless steel braided hose provided by Proflex Hose are made to be amazingly durable and great in strength. With this form of hose, an external layer of braid is added to prevent the elongating of a tube when pressure is applied. This enables better flexibility and movement for the hose.Outer sheath– An extruded polymer layer that shields the pipe's structural elements from the outer environment and gives mechanical protection. The critical plane is the horizontal plane through the top of the pipe when the fill is level with its top. At critical plane, H=0. During and after construction, if this critical plane settles more than the top of the pipe, as shown for rigid pipe in figure 3a, the settlement ratio is positive (prsd>0). For flexible pipes, figure 3b, the critical plane settles less than the top of the pipe, indicating the settlement ratio is negative (prsd<0). The brand new and completely unique Tectite Metal Push-fit System, offers the UK installer the next evolution in domestic plumbing. We believe in the efficiency and swift installation offered by a flexible plumbing solution, combined with the performance and reliability offered by the traditional metal systems Pegler Yorkshire is renowned for. Chen G (2011) Analysis of cross-sectional mechanical properties of marine non-bonded flexible pipes. Master’s thesis, Harbin University of Engineering Antal S, Nagy T, Grply I (2002). Spoolable bonded flexible pipes for gas service. Offshore Technology Conference, USA

Tectite tube offers installers the flexible installation of plastic with none of the compromises, suitable for use on central heating and potable water. The Tectite classic fitting provides the performance and reliability only metal can; an array of features ensure you leave the job today knowing it won’t cause you problems tomorrow. Connect Tectite Tube direct to the boiler* and all the way through to Tectite ended TRV’s, tap connectors and much more besides

Sharp bends should be avoided while installing flexible hoses. The Technical Data Section of the vendor catalog should be followed to maintain the minimum centerline bend radius for intermittent flexing. Ren SF (2015) Study on the cross-section mechanical properties and typical failure characteristics of Unbonded flexible risers [Doctor’s thesis]. Shanghai Jiaotong University For positive projecting conduits, Marston also determined, initially purely through mathematical reasoning, the existence of a horizontal plane above the pipe where shearing forces would be zero, referred to as the plane of equal settlement. Settlement of interior and exterior prisms above this plane is equal. Marston Load Calculations in Trench Condition Multi-layer pipes, and the Tectite flexible metal system, offer a flexible plumbing solution combined with the performance and reliability provided by the traditional metal systems Pegler Yorkshire is renowned for. Wei SC, Han Q, Wei XJ (2003) Selection and combination of marine hose reinforcement. Material Report (06):60–63

In designing and optimizing an unbonded flexible pipe structure designation of adequate materials, the correct balancing of pipe structural elements, geometry, and interaction between layers must be considered. We ensure the long-term durability of a Flexibles pipe through a combination of only using symmetrical pressure armor profiles—which contain an absolute minimum of residual stresses after having been applied onto the flexible pipe structure—and a careful preforming of the double-layer cross-wound tensile armor comprised of multiple rectangular steel wires. Our pipes are designed under rigorous rules based on models of the operational conditions. If desired, they can be constantly monitored by embedded sensors and electrical heating wires into the structure. Our pigging solutions, pipeline products, and structures are designed to interface perfectly with our flexible pipes. We deliver flexible pipe systems to the offshore oil and gas industry as well as the chemical and water industries worldwide. As a professional and competent supplier of highly engineered flexible pipe systems, we provide a complete solution to our clients, including oil companies and the contracting industry.The allowable bending radius for the hose depends on the type of motion the hose will experience, this is described as: If you have a project requiring temperature resistance, corrosion resistance or a flexible hose that can stand up to pressure or a vacuum, our stainless steel flexible metal conduit is the hose for you If required we can offer the same extensive NDT and manufacturing documentation as with our metal expansion joints and pressure vessels. This capability allows us to serve demanding end users in the petrochemical, refining and energy markets with unique custom designed metal hose assemblies. Antiwear layer– Nonmetallic layers are incorporated to prevent wear and tear between the structural elements.