Too many people will be curious. How does the airtight hydraulic testing machine achieve the simultaneous water pressure testing and air tightness testing?Dongguan Suncenter Fluid Control Equipment Co., Ltd. Tells you

In recent years, the industrial production of air-tight hydraulic testing machine has become the mainstream, many manufacturing enterprises have gradually new products to replace the traditional equipment, equipped with imported gas driven gas automatic booster pump, the output pressure can be easily adjusted and controlled, It is especially suitable for pressure testing of pressure equipment such as valve pipeline, high pressure vessel and fittings, can meet the drilling blowout preventer, oil recovery (gas) trees and wellhead devices, throttling and kill manifold, and other products factory inspection, and at the same time it can meet the functional test of the above products. 

Now, a simple analysis of how this air-tight hydraulic testing machine has a place in the market from two aspects:

一:About hydraulic test pressure, it is better for the industry to be able to assess the strength of pressure-bearing components and expose their defects, but not to damage the pressure-bearing components. It is generally stipulated that the film stress of pressure-bearing components under the hydraulic test pressure shall not exceed 90% of the yield limit of the material at the test temperature. The specific hydraulic test pressure is as follows:

(1)Pressure vessel, single pot barrel and whole factory welded boiler, test pressure is optional.

(2)The header and other similar parts shall be hydro-tested at 1.5 times operating pressure.

(3)Hydraulic test shall be carried out one by one for the welded pipes on the heating surface and other pressurized pipe fittings, and the test pressure shall be twice of the working pressure of the components.Hydraulic test can be conducted simultaneously with the main body on the welded joints of pipes and pipes of heating surface assembled on the site.

二：In the aspect of air tightness test, it is mainly to check whether there is leakage  at each connection part of the container. Pressure vessels with extreme or high degree of toxicity of the medium or designed to prevent minor leakage must be tested for air tightness.

Pressure vessels shall be tested for air tightness according to the following requirements:

(1) Air tightness test should be carried out after passing the hydraulic test. For pressure vessels whose design requires a air pressure test, the air tightness test may be carried out simultaneously with the air pressure test, and the test pressure shall be the pressure of the air pressure test

(2) For pressure vessels made of carbon steel and low alloy steel, the temperature of the test gas shall not be lower than 5℃, pressure vessels made of other materials shall be as per design drawing

(3) During the test, the pressure should rise slowly. After reaching the specified test pressure, the pressure should be kept for 10 minutes. Then, the pressure should be reduced to the design pressure, all welds and joints shall be inspected with soap and water, and no leakage shall be considered as qualified. If there is a leak, carry out hydraulic test and air tightness test again after repairing

Air tightness test is different from air pressure test. First of all, they have different goals. Air tightness test is to test the tightness of pressure vessel, while air pressure test is to test the pressure vessel's compressive strength. Secondly, the test pressure is different, the pressure of air tightness test is the design pressure of the container, and the pressure of air pressure test is 1.15 times of the design pressure.

Nowadays, the market of air-tight hydraulic test all-in-one machine is hot, which is the development trend of the industry enterprises. However, in the face of great business opportunities, enterprises should actively innovate technology, research and development of better products to customers. Must not take the opportunity to take advantage of small advantage, only to "make a profit" and destroyed the rule of the fluid control equipment market, but also undermines its brand image, the loss is not worth it. In the future, quality is the key to win, and public praise is the cornerstone of development. Dongguan Suncenter has always adhered to the original intention to improve the efficiency of industrial production and guarantee people's quality of life.

website: www.suncenter-cn.com

Contact: Manager Yi

Whatsapp(Wechat):008615019143208