The Flexible Metal Conduit can generally be divided into three lengths: the first is the compression length, which is the length when the hose is compressed to a defined position; the second is the installation length, which is halfway between the defined displacements. The length of the hose; the third is the stretched length and the hose is stretched to a defined length.
(1) Size hose nominal diameter, we choose the joint type (mainly flange connection, threaded connection, quick joint connection) and the size of flexible metal conduit, hose length.
(2) Xingda introduces the pressure according to the actual working pressure of the hose, and then queries the nominal diameter and pressure gauge of the corrugated flexible metal conduit to determine whether to use the stainless steel mesh type metal hose.
(3) The chemical properties of the medium conveyed in the medium hose. We Xingda determines the material of each part of the hose according to the corrosion resistance of the hose material.
(4) Working temperature and range of the medium in the temperature hose; ambient temperature when the hose is working. At high temperatures, the operating pressure temperature correction factor at the high temperature of the flexible metal conduit shall be determined to determine the pressure after the temperature correction to determine the correct pressure rating.
(5) The state is referred to the correct use of the metal hose and the installation method and the optimum length of the high pressure hose in the settlement compensation. Calculate the length of the hose in various motion states and the minimum bending times and minimum bending radius of the hose. The parameters are correctly selected and the hose length is correctly installed.
Flexible Metal Conduit
Metal hoses have good properties such as good flexibility, fatigue resistance, high temperature resistance, high and low temperature resistance, and corrosion resistance.
The basic performance of metal hoses is divided into four categories:
(1) Excellent weather resistance No long-term use, no aging, deterioration, no cracks and peeling caused by aging.
(B), excellent heat-resistant temperature-resistant products can be used in the temperature range of -193 to 350 degrees Celsius, products with high temperature resistance have a greater temperature range.
(C), high pressure resistance Because the pipe body uses high quality stainless steel, the inner diameter of 10mm hose can withstand 20Mpa pressure; the inner diameter of 300mm hose can withstand 1Mpa pressure.
(4) The fatigue life of the corrugated metal hose after repeated long life improvement is four times or more of the standard product.
The scope of use of flexible metal conduits: widely used in steam, gas, air, heavy oil, petroleum, chemical and pharmaceuticals.
Flexible Metal Conduit Fitting is one of the important components for connecting various components in modern engineering technology. It is mainly used as wire and cable protection tube for wire, cable and automatic instrumentation signals and civil shower hoses, ranging from 3mm to 150mm. Smaller caliber hoses are mainly used for sensing line protection of precision optical scales and industrial sensor line protection. Widely used in machinery, chemicals, petroleum, metallurgy, food and other industries.
However, in actual use, many flexible metal conduits are subjected to excessive pressure, which causes the hose to rupture or break. Why? What is its pressure range? Generally, the pressure range of the hose is generally PN0.6 - 32.0Mpa; up to 42.0MPa. The flexible metal conduit is used as the main pressure bearing member installed in the pressure pipeline, and at the same time, the bellows is sheathed. According to the pressure in the pipeline and the application place, one or more layers of stainless steel wire or steel strip can be selected for weaving. . We are Flexible Metal Conduit Factory, welcome to come to us.