• Product Name
  • Product Keyword
  • Product Model
  • Product Summary
  • Product Description
  • Multi Field Search
You are here: Home » SEFIC Knowledge Base » Product encyclopedia
Product encyclopedia
  • 1. Why can't acetylene cylinders be used up?The gas in the bottle is used up, the pressure inside the bottle is balanced with the atmospheric pressure, and the air is easily mixed into the bottle to form a mixture of acetylene and air. The explosion limit of acetylene is 2.3%-100% (volume fraction).

    2019.08.09

    Read More
  • In fact, many people do not use fire extinguishers correctly. Moreover, heavier fire-fighting equipment may not be available to the elderly and children. This not only delayed the fire, but also caused unnecessary casualties. So missed the best time to fire. Today Xiao Bian brought everyone the gosp

    2018.06.06

    Read More
  • 1. The filling, transportation, storage and use of aluminum inner carbon fiber full-wound composite gas cylinders (hereinafter referred to as gas cylinders) shall comply with the "gas cylinder safety supervision regulations"; for positive pressure fire-fighting air breathing apparatus shall comply w

    2019.06.28

    Read More
  • Ball valveBall valves are evolved from plug valves. It has the same 90° rotation action, except that the plug body is a sphere with a circular through hole or passage through its axis. The ratio of the spherical surface to the passage opening should be such that when the ball is rotated by 90°, all

    2019.05.21

    Read More
  • (1) Low temperature engineering application of helium gasIt is well known that the liquid temperature range of xenon is 2 x 10-3 - 5.20 K, the liquid temperature range of hydrogen is 14.2 - 33.0 K, and the liquid temperature range of helium is 24.5 - 44.40 K.Because helium is chemically inert and ha

    2019.04.25

    Read More
  • carbon dioxideOthers: Carbonic acid, carbonic anhydride, dry ice (solid state)Chemical formula: CO2Molecular weight: 44.0095Melting point: -78.45 °CBoiling point: -78.45 °CWater solubility: 1.45 g/L (25 ° C, 100 Pa)Density: 1.907g/L in gaseous state and 1.816kg/L in liquid stateFlash point: noneAppe

    2019.02.26

    Read More
  • Liquefied Petroleum Gas (LPG) is often confused with LNGIn fact, they have obvious differences. The main components of LPG are propane and butane with a small amount of olefins. LPG is stored in a tank in a liquid state under appropriate pressure and is often used as a cooking fuel, which is the liq

    2018.12.07

    Read More
  • The gaseous fuel can be directly used as a fuel for an internal combustion engine or the like, and can also be used as a raw material for industries such as synthetic ammonia, artificial petroleum, and organic synthesis.Gas fuel is a kind of high-quality, high-efficiency and clean fuel. Its ignition

    2018.11.23

    Read More
  • Laughter (chemical name: nitrous oxide) Oxygen is 02, it does not seem to respond, the mixed gas is closed or inhaled by an anesthesia machine, accident rescue center, etc., especially at present, mainly used for painless delivery, Small surgery such as abscess incision and trauma suture. An accurat

    2018.11.16

    Read More
  • Generally, a substance that is in a gaseous state at normal temperature and pressure is called a gas. A wide variety of gases, classified by nature, can be divided into inorganic gases and organic gases; according to ancient classification, can be divided into constant gas and trace gases, classifie

    2018.11.09

    Read More
Quick Navitagion
Contact Us
TEL:+86-021-66870239              Fax:+86-021-66019679               Mobile:+86-17702103666                           E-mail:info@sefindustry.com    Skype:sefindustry                        Whatsapp:+86-17702103666

Inquiry
The Way of Buying:
© 2019  SHANGHAI ETERNAL FAITH INDUSTRY CO.,LTD