Article List

• HAPPY NEW YEAR

  SEFIC wishes everyone a Happy New Year! !! !!

  customer visitation January 20, 2020
• How to manage gas and steel cylinders safely

  The first category is steel or aluminum alloy metal bottles (CNG-1);The second type is composite steel gas cylinders (CNG-2) reinforced with steel or aluminum lined with barrels and impregnated with long-fiber resin.The third type is a composite gas cylinder (CNG-3) reinforced with steel or aluminum

  Industry knowledge November 28, 2019
• The difference between the diameter Dn, De, D, d, Φ

  The diameter of the tube can be divided into outer diameter (De), inner diameter (D), and nominal diameter (DN).Note: This is neither the outer diameter nor the inner diameter, but the average of the outer diameter and the inner diameter, called the average inner diameter.When the design uses the no

  Information and drawings August 29, 2019
• SEFIC news is good

  we are family

  Corporate news July 06, 2017
• LPG official website successfully launched

  In order to better serve our customers, our company's official website of lpg products has been released recently. For more information on lpg and related products, please visit http://www.seficlpg.com Our trademark is SEIFC(Shanghai Eternal Faith Industry Co.,Ltd).We are one of the largest manufact

  Corporate news June 14, 2019
• The nature and use of medical gases

  (1) OxygenThe molecular formula of oxygen is O2. It is a strong oxidant and combustion improver. When high-concentration oxygen encounters oil, it will undergo a strong oxidation reaction, generate high temperature, and even burn and explode. Therefore, it is listed as a Class B fire hazardous subst

  Industry knowledge July 25, 2019
• Type of welding gas

  Welding Gases, a gas industry term, has been rapidly developed due to its advantages of good welding quality, high efficiency, and easy automation. The welding shielding gas can be a unit gas or a binary or ternary mixture. The purpose of using welding protective gas is to improve the quality of the

  Information and drawings August 05, 2019
• Introduction to refrigerant types

  Refrigerant is a working substance that is continuously cyclically changed in a refrigeration system to achieve refrigeration, also called a working fluid. The refrigerant is vaporized in the evaporator to absorb the heat of the cold object and is cooled, and the heat is released into the surroundin

  Information and drawings May 10, 2019
• Refrigerant product

  Refrigerant, also known as refrigerant, refrigerant, and snow, is a medium used in various heat engines to complete energy conversion.These materials typically increase power with a reversible phase change, such as gas-liquid phase change. Such as steam in steam engines, snow in refrigerators, and s

  Information and drawings April 23, 2019
• How does a gas cylinder pressure reducing valve work?

  1. Working principle of gas cylinder pressure reducing valve:The high pressure chamber of the gas cylinder pressure reducing valve is connected to the cylinder, and the low pressure chamber is a gas outlet and leads to the use system. The indication of the high pressure gauge is the pressure of the

  Industry knowledge March 29, 2019