Engineering blasting pressure of rubber hose

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Problems encountered in the application of large-diameter hoses

When connecting with a large-diameter rubber hose, be sure to fully insert the threaded part of the pressure reducer and the stove connector into the large-diameter rubber hose, and tie it with a thin wire or clamp it with a pipe clamp to prevent it from falling off. Note that the thin iron wires should be bundled in moderation, so as not to damage the large-diameter rubber hose.

The large-diameter rubber hose should be inspected frequently, especially at the two joints and the bending of the sheet metal. If softening, hardening, brittleness, cracks and steam leakage are found, this section should be cut off. For a long time, it can be connected and used again, otherwise it should be replaced.

When the above-mentioned problems occur in the middle of the large-caliber rubber hose, the new hose should be replaced in time.

The large-diameter rubber hose has high bearing capacity, and the deformation of the tube body is small. It has good tensile and flexural fatigue resistance, and the glue of the hose has good oxidation resistance and temperature resistance. The blasting pressure of the hose is generally not less than four times the pressure. There are two kinds of rubber hoses: universal type (without connector) and with connector. The rubber hose with connector has the effect of conducting static electricity.

According to the application, the large-diameter rubber hose can be used for ironmaking machinery and equipment to transport CO2, refrigeration and cooling circulating water and other special types.

Is inner diameter and nominal size the same thing?

Nominal diameter, also known as nominal diameter, sometimes called pipe diameter, is the main parameter of pipes and fittings.

The nominal diameter is the standard diameter of pipes and pipe fittings artificially specified for the convenience of design, manufacture, installation and maintenance, so it is a nominal diameter (or called diameter).

The nominal diameter is a general diameter stipulated for the interchangeability of pipes, pipe fittings and valves. It is represented by the symbol DN and the unit is mm.

The nominal diameter has been represented by the symbol D in our country, and the international common DN. The nominal diameter is a standard diameter to control the design and manufacturing specifications of the pipe, which is close to the inner diameter of the pipe.

The characteristics of the nominal diameter; the nominal diameter is generally neither equal to its actual inner diameter nor its actual outer diameter, but a nominal diameter.

But no matter what the actual inner diameter and outer diameter of the pipe are, as long as the nominal diameters are the same, they can be connected with bone parts of the same nominal diameter, which has versatility and interchangeability.