The production process of steam hoses includes a number of steps. This includes evaluating the temperature ranges, chemical compatibility and pressure requirements. They should be resistant to heat, steam and not react with material being transported.
Another important practice is thoroughly draining a steam hose after every use. This prevents a type damage called popcorning. It is caused by the absorption of water vapor into the hose tube walls. The moisture is absorbed, then cooled and condensed into water. This water remains trapped within the hose.
advantages and disadvantages of steam hoses
Steam hoses can be used to transfer hot water under pressure in a variety of applications. These include steam cleaning, steam pumping, heat control, flame prevention, thawing and blowout service. These hoses can be used in harsh environments such as shipyards, steel mills, and chemical plants. However, they must be properly specified and handled to avoid dangerous accidents.
When a steam hose is not in use, it should be drained completely and stored in normal temperatures to prevent damage. It should not be hung on a nail or hook, as this could puncture the hose and lead to costly leaks. The hose should be placed on a rack that is specifically designed for it, and it should not be bent in sharp curves or have any kinks. Avoid metal hangers as they can cause rust.
If the hose is exposed to a sudden change in temperature, it can become superheated and deteriorate the inner rubber surface. This is called popcorning and can have a negative impact on the safety of the rubber hose. To reduce the risk of popcorning, the hose should be blown dry after every use. The hose should also be inspected regularly for gouges, kinks, loose couplings, and corroded areas.
method for extending the service life of steam hoses
Steam hoses are used to channel dry, saturated or superheated steam in factories and processing plants. These hoses can withstand temperatures of up to 164degC. They are also designed to handle saturated steam pressures up to 100psi and minimal heat loss.
Many hoses have a maximum pressure of 250psi. This is only for safety reasons and they should not be used above that. Over-inflated hoses can rupture or cause damage, which could be dangerous for workers.
There are a number of ways to extend the life of steam hoses. Proper storage and handling will help to combat the effects of temperature fluctuations, chemical vapors, sunlight and other environmental factors that can shorten hose life. In addition, hoses with galvanized steel inlays are resistant to rust and therefore last longer than other hoses.
Choosing the right hose is essential for refining or processing plant operations. During regular inspections, it is important to observe and record conditions that place additional strain on the hose. This will help prevent premature rework or replacement, which can increase productivity and decrease cost. It is also important to develop a plan for routine inspections and replacements. This will help ensure that the hoses are in good condition, free of pinprick ooze, startup leakage at interlock fittings and tube popcorning failures.
steam hose steel wire layer fault
Steam hoses are a vital part of industrial processes. They must be maintained properly to ensure safe operation and extend their service life. It is important to ensure that the hoses and fittings are in good working order. After use, they should be de-pressurized to avoid the popcorning effect.
When steam reaches the steel inserts in rubber hoses, corrosion of the steel wire layer can occur. Inlays are usually made of galvanised steel. However, corrosion can cause the hoses to fail and let hot steam escape without warning. This is particularly dangerous in environments where steam can reach high temperature.
Twisting the hose is another common problem. This can reduce the lifespan of the hose. It is estimated that a twist of 7% will cut the hose's life by 90%. Swagelok hoses do not have coiled reinforcement because this type of construction does not work well for steam applications.
Regular inspection of the hoses is the best way to avoid these problems. This includes checking the hoses for gouges, cuts, flattened areas, kinks, and blisters on the cover. The hoses should also be tested for leakage. Workers should always wear full protective gear when working near a steam hose. They should also install safety cables approved by OSHA at every junction in order to prevent the hose whipping around in the event that the couplings fail.