Why is non-standard custom high pressure pipe fittings more expensive?
Release time:
Sep 05,2022
Non-standard customized high-pressure pipe fittings are different from any standard pipe fittings, that is, non-standard pipe fittings. If the quantity is very small and the customer does not require casting, it is necessary to consider cutting the material with steel plate. The cutting of small diameter pipe fittings will cause material loss in the center, so the material loss is included in the cost calculation. This will cost a lot of money and make customers feel that it is not cheaper or even more expensive than standard fittings.
There are also custom-made pipe fittings with very thin wall thickness, so the cost is low. In the standard of high-pressure pipe fittings, the larger the diameter, the larger the wall thickness of the pipe. In addition to the pressure capacity, the processing difficulty of high-pressure pipe fittings should also be considered. High-pressure pipe fittings with a large difference from the standard pipe fittings will have material tremor during processing, which is easy to damage the tool, which is not conducive to the appearance of the finished product, increases roughness, takes a long time, and leads to increased costs. This makes customers feel much more expensive than standard high-pressure fittings. Another situation is that the processing technology of customized high-pressure pipe fittings is complicated and the working hours are expensive, resulting in an increase in product cost.
As is well known, gas fire extinguishing equipment is often composed of many different components, of which the conveying pipe for conveying the medium is one of the important self-closing components. The following describes some of the characteristics of the gas fire extinguishing system as an important component.
Generally speaking, as a gas fire extinguishing system, a high-pressure gas fire extinguishing system is more commonly used than a low-pressure gas fire extinguishing system. The required pipe fittings need to withstand the test of high pressure, and the production process is more stringent than ordinary pipe fittings. Generally, high-pressure forging processes are used, such as tees, elbows, straight-through, flanges, etc. Compared with cast pipe fittings, high-pressure pipe fittings are a processing method that uses a forging press to apply pressure to metal blanks to cause plastic deformation to obtain forgings with certain mechanical properties, shapes and sizes.
The main process of forging pipe fittings is forging, that is, forging. The original coarse dendrites and columnar crystals are transformed into equiaxed recrystallization tissues with fine grains and uniform sizes, so that the original segregation, pores, looseness, slag inclusion, etc. After the ingot is compacted and welded, its structure becomes more compact, thereby improving the plasticity and mechanical properties of the metal. The production of casting high-pressure pipe fittings is mainly to use molds and models to put metal liquid into them, and after cooling, solidification, cleaning and other treatments, castings of predetermined shape, size and performance are obtained.
In addition to high-pressure pipe fittings, high-pressure pipes are usually used for gas fire extinguishing equipment, and hot-dip galvanized seamless steel pipes are generally used. This kind of steel pipe has high quality requirements in production. Generally speaking, there are four processes: heating and forming of tube blank, cooling perforation and material extension. Its main features are high strength and good oxidation resistance, as well as maintaining stability during work.
Contact Information
Can't find the product you are looking for? Contact us!
To inquire about our products, please contact us through the right way, we will provide you with detailed information.
Address: Zhenggang Park, Yanshan Economic Development Zone, Hebei
