Article List

• Gas filling process and points

  First, the main points of permanent gas filling1. Professional training, certification, and compliance procedures2, wearing protective equipment, inspection equipment3. Review cylinders and check air tightness4, open the total valve, ready to inflate5, inspection when filling6, the discovery of the

  Information and drawings March 22, 2019
• Common classification of stainless steel

  Stainless steel is generally classified into three types according to metallographic structure: austenitic stainless steel, ferritic stainless steel, and martensitic stainless steel. On the basis of these three basic auspicious organizations, for the specific needs and purposes, dual phase steel, pr

  Information and drawings March 18, 2019
• Detailed explanation of the cylinder

  A cylinder is a type of pressure vessel. It is a re-inflatable mobile cylinder containing a compressed gas or high-pressure liquefied gas with a design pressure of 1-300kgf/cm2 and a volume of not more than 1m3. It is a kind of pressure vessel commonly used in civil, public welfare and industrial a

  Industry knowledge March 08, 2019
• Fire extinguisher type and scope of use

  First, the foam fire extinguisher1. At present, it is mainly chemical foam. In the future, air foam should be developed. The foam can cover the surface of the burning material to prevent air from entering. It is most suitable for fighting liquid fires, and cannot extinguish fires of water-soluble fl

  Information and drawings February 19, 2019
• The 2019 SEFIC Annual Meeting was held successfully

  Say goodbye to the unforgettable 2018, ushered in the new 2019, January 25, 2019, SEFIC held the company annual meeting.The conference kicked off with the wonderful and true New Year's message from Mr. Michael, the company's general manager. At this annual meeting, SEFIC employees created their own

  Corporate news January 29, 2019
• Precautions for installing the pressure reducing valve

  The installation of the pressure reducing valve must be in accordance with the direction of the arrow on the valve body to maintain the direction of fluid flow. If the water quality is not clean and contains some impurities, the filter must be installed at the upstream inlet of the pressure reducing

  Information and drawings January 29, 2019
• Helium cylinder use instructions

  Due to production needs, cylinders must be used on site (indoor), the number of which must not exceed 5 bottles, and should meet the following requirements:1. The room must be well ventilated to ensure that the maximum content of hydrogen in the air does not exceed 1% (volume ratio). A louver or ven

  Information and drawings January 29, 2019
• Liquefied petroleum gas cylinders cannot be filled

  Because each cylinder has a certain pressure. The liquefied gas is normally filled into the bottle in a liquid state at a normal temperature, and when the ambient temperature is raised, part of the liquid is converted into a gas to increase the pressure inside the bottle. Therefore, in order to ensu

  Information and drawings January 08, 2019
• Import and export tax rates for various gas products will be adjusted from New Year's Day

  In order to implement the spirit of the internship in the opening ceremony of the opening ceremony of the first China International Import Expo, the Chairman of the Board of Directors of the People’s Republic of China, the State Council’s Customs Tariff Commission, reviewed and approved, and approve

  Industry knowledge January 02, 2019
• Gas stove structure

  The cooker is annular, and has a mixed gas injection port on the inner upper circumference; one end of the mixing pipe is connected to one side of the cooker, and the other end is provided with an air regulating port; the middle of the air regulating port is a gas input pipe; The air box is provided

  Information and drawings December 29, 2018