Stainless Braided 150# Flanged Pump Connectors (Carbon Steel Plates) Stock Lengths
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Corrugated hoses are pressure and vacuum tight. The pressure resistance of large dimensions is lower for technical reasons. Stainless steel models have a temperature resistance of up to approx. 1200 Deg. F, depending on the pressure load, and even higher values are possible with special materials. In the low temperature range, stainless steel corrugated hoses can be used down to -454 Deg. F.
Structure and function
Corrugated hoses are used as economical, flexible connecting elements that permit movement, and vibrations, and that can be used as filling hoses. The starting material is a seamless or longitudinally welded, thin-walled tube into which corrugations are introduced by mechanical or hydraulic means using special tools. Corrugated hoses are absolutely leak-tight and are used to convey liquids or gases under pressure or as vacuum lines. They are also referred to as pressure hoses. Their special design achieves both flexibility and pressure resistance.
To increase pressure resistance, metal hoses can be equipped with one- or two-layer braiding. The braiding is firmly connected to the hose fittings on both sides to absorb the longitudinal forces caused by internal pressure. Due to its inherent flexibility, the braid moulds itself perfectly to the movement of the hose. Hose braiding consists of right- and left-handed wrapped wire bundles that are alternately layered one over the other. This not only prevents hose lengthening due to internal pressure, but also absorbs external tensile forces and protects the outside of the hose. The basic material of the wire braid is usually the same as that of the corrugated hose. It is also possible to select different materials in the interest of greater corrosion resistance or for economic considerations.
The braiding also greatly increases the resistance of the hose to internal pressure. The braid flexibly moulds itself to the movement of the hose. This applies even if a second braiding is used, which further increases pressure resistance. The method by which the braiding is attached to the connection fittings depends on the type of fitting and the demands on the hose. Under rough operating conditions, an additional round wire coil can be wound over the braid or the braid can be sheathed in a protective hose.