influence Sandblasting hose There are many factors affecting the use of the assembly. The reliability and economy of the use of sandblasting hose can be guaranteed only if the sandblasting hose and connector are selected correctly according to the working conditions. These factors are:

Sandblasting hose size

The inner diameter of the sandblasting hose shall be appropriate. If the pipe diameter is too small, the flow rate of the medium in the pipeline will increase, the system will heat up, reduce efficiency, and will produce excessive pressure drop, which will affect the performance of the whole system. If the sandblasting hose is fixed with pipe clamps or the sandblasting hose passes through steel plates and other spacers, the outer diameter of the sandblasting hose shall also be noted.

working pressure

Generally, the dynamic pressure of sandblasting hose refers to the very high pressure allowed for continuous operation of sandblasting hose. According to the safety factor of hydraulic sandblasting hose specified in relevant international standards, the generally recommended working pressure is usually one fourth of the very low bursting pressure of sandblasting hose.

Shock pressure and fatigue life

The selection of sand blasting hose is determined according to the high pressure value designed for the hydraulic system. Because the pressure value of the hydraulic system is usually dynamic, sometimes there will be impact pressure, and the peak value of the impact pressure will be much higher than the very high pressure value of the system. However, the system generally has an overflow valve, so the impact pressure will not seriously affect the fatigue life of the sandblasting hose. For hydraulic systems with extremely frequent impact pressure, it is recommended to select sandblasting hose products that are particularly resistant to pulsating impact.

temperature range

Users should use sandblasting hose within the temperature range allowed by the quality specification of sandblasting hose. If the working environment temperature exceeds this range, the service life of sand blasting hose will be affected and its pressure bearing capacity will be greatly reduced. The hose sheath is recommended for systems where the working environment temperature is too high or too low for a long time.

Chemical compatibility

If special hydraulic medium is used, the user shall ensure that Sandblasting hose The inner and outer layers of sand blasting hose, joints and O-ring of the assembly are compatible with the media.

Bending radius

Meaning: R is the (minimum) radius of the inner circle of the hose that can be bent but will not damage or shorten its service life.

For a sandblasting hose, the R value is fixed. When in use, if the bending radius is less than R, the sandblasting hose with textile reinforcement layer is likely to be kinked. It would be better to use sandblasting hose with spiral steel wire.