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A pressure reducing valve is a mechanical device designed to automatically reduce and regulate the pressure of gas through a system. It maintains a consistent outlet pressure despite fluctuations in the inlet pressure and varying gas flow rates. In the case of natural gas, these valves ensure that the gas is delivered to homes and businesses at a safe and usable pressure, preventing both overpressure situations—which can cause leaks or even explosions—and underpressure situations—that can impede gas supply.


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HEBEI OUYINUO أنظمة القياس


  • Rutile titanium dioxide is a commonly used white pigment in various industries, known for its excellent light-scattering properties and high refractive index. Among the different types of rutile titanium dioxide available in the market, DHR-966, SR-2377, R5566, R218, R996, and THR-6666 are some of the most widely used variants.
  • A safety review conducted by the EFSA in 2021 assessed thousands of studies published on titanium dioxide.



  • Application:
    1. Due to its rheological and optical properties, Lithopone offers technical and economic advantages wherever organic and inorganic resin systems need to be relatively highly pigmented for specific applications. Lithopone has therefore traditionally been used in putties, mastics, jointing and sealing compounds, primers, undercoats and marking paints. In powder coatings it is possible to replace TiO2 partially, very economically.

    2. The low Mohs' hardness of Lithopone leads to low abrasiveness in comparison with TiO2.

    3. Lithopone 30 % (= 30% zinc sulfide share) is proven to be of particular use as a TiO2 Substitute in thermoplastic masterbatches. Even at very high pigment loadings it disperses easily. A masterbatch containing 50 % TiO2 and 25 % Lithopone 30 % DS has the same hiding power as one containing 60 %TiO2. Cost savings are strongly related to the price ratio of Lithopone and TiO2 and the price of for example polyethylene or polypropylene.

    4. The Lithopone batch has a much higher extrusion rate too. Furthermore the impact strength of many thermoplastics such as PP and ABS can be noticeably improved by using Lithopone as a TiO2 substitute. Generally spoken, Lithopone can be used at loadings up to 80 % by weight without causing polymer breakdown
  • Australia and New Zealand review of TiO2

  • Familiarise yourself with the Regulation and its requirements
  • For those wishing to limit or avoid exposure to titanium dioxide in foods, there are some steps you can take. 

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  • Lithopone-Market-2020-2027

  • Pureté : 99%
  • Our factory is equipped with state-of-the-art technology and machinery that enables us to produce high-quality TiO2 products efficiently and cost-effectively. We have a team of experienced and skilled professionals who are dedicated to ensuring that our products meet the highest standards of quality and purity.
  • As demand grows for sustainable and efficient products, suppliers of titanium dioxide coatings are under increasing pressure to innovate and improve their offerings. Advances in nanotechnology have led to the development of nanoscale TiO2 particles, which exhibit even better performance due to their increased surface area.
  • Lithopone is known for its excellent covering power and brightness, making it an ideal choice for use in paints, coatings, plastics, and rubber. It is also used as a filler in paper, ceramics, and inks. Due to its unique chemical properties, lithopone provides good weather resistance, durability, and lightfastness when used in various applications.
  • For his part, Kaminski argues most of the studies have been in animals, and any effects found were minuscule. He and his team also contested some of the findings in a 2019 study that found no evidence of increased inflammation or changes in the GI tract.

  • Venator Materials, with roots in Huntsman International, focuses on both titanium dioxide and performance additivestitan tio2 suppliers. Their commitment to innovation has led to the development of eco-friendly TiO2 solutions.
  • Photocatalytic activity is another fascinating property of rutile TiO2
  • Traditionally, UV-filters are categorized as either chemical or physical. The big difference is supposed to be that chemical agents absorb UV-light while physical agents reflect it like a bunch of mini umbrellas on top of the skin. While this categorization is easy and logical it turns out it's not true. A recent, 2016 study shows that inorganic sunscreens work mostly by absorption, just like chemical filters, and only a little bit by reflection (they do reflect the light in the visible spectrum, but mostly absorb in the UV spectrum).

  • Porcelain White, 32 per cent sulphide, 68 per cent barium sulphate.

  • Animal studies have shown that, when consumed as a food additive, titanium dioxide can induce intestinal inflammation.

  • Lithopone

  • sufiicient sulphuric acid to extract up to 95 per cent or more, of the titanium oxide prescut. This extraction is carried on so that the resulting product, after the addition of the required amount of sulphuric acid, is in the form of a dry powdered .mass, in which approximately 95 per cent of the titanium is in a soluble form. Th dry powdered mass is thenextractedin suitable leaching tanks with water, whereby a solution of approximately 70 grams of sulphuric acid and 100 grams of titanium oxide to the liter, is obtained.
  • Lithopone, a blend of zinc sulfide and barium sulfate, is prized for its opaque nature and ability to confer high brilliance and stability to colors. It has traditionally been used in a wide array of applications, from paints and plastics to rubber and printing inks. However, with the advent of new environmental regulations and the push for safer, non-toxic materials, there has been a renewed interest in lithopone production techniques that minimize hazardous waste and maximize efficiency.
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