Technical Articles

  • Features of Extension Rod Butterfly Valve
    Posted: 09/23/2016 16:07:21 Hits: 5

    Extension rod butterfly valve is widely applied in chemical engineering, petrifaction, petroleum, paper making, mining, power, liquefied gas, food, pharmacy, drainage, municipal administration, electric industry, urban construction, etc.   Several factors should be considered when choose ...

  • Tips for Installing Stainless Steel Ball Valves
    Posted: 09/23/2016 16:07:21 Hits: 4

    In general, stainless steel ball valves are suitable for media, such as water, solvents, acids and gas. High quality stainless steel ball valves are also appropriate for media having wicked working conditions, like some corrosive media. And stainless steel ball valves are widely applied in various...

  • Choose Chemical Industry Valves for Corrosive Media
    Posted: 09/23/2016 16:07:21 Hits: 7

    When valves used for sulfuric acid, hydrochloric acid, nitric acid, acetic acid, alkali (sodium hydroxide), ammonia (aqua ammonia), chlorine (liquid chlorine) and brine (seawater), alcohols, ketones, esters, ethers and other corrosive media, corrosion resistance is the most critical. If metal mate...

  • Common Valves for Large Desalination Projects
    Posted: 09/23/2016 16:07:21 Hits: 15

    Currently, a large amount of large desalination projects are being built in China. Valves are used as key devices for desalination project.   Chloride may corrode equipments during desalination. Temperature of sea water has great influence on velocity of corrosion. The higher temperature ...

  • Installation Steps of Insulation Ball Valve
    Posted: 09/23/2016 16:07:21 Hits: 6

    Insulation ball valve and flanged gate valve are the same category of valve. Due to good heat preservation and cold insulation, insulation ball valve has been widely applied in chemical engineering, metallurgy, pharmacy and food, having high popularity on the market. Proper installation cannot onl...

  • Types of Valves in Water Supply System
    Posted: 09/23/2016 16:07:21 Hits: 8

    The valve, commonly utilized in water supply system, includes gate valve (screw thread, flange), globe valve (screw thread), check valve (screw thread, flange), butterfly valve, etc.   Gate valve: Actuation of gate valve can be classified into clear bar, dark bar, manual, electric and mot...

  • Types of Oil Lubrication Hard Seal Plug Valve
    Posted: 09/23/2016 16:07:21 Hits: 4

    Oil lubrication hard seal plug valve can be classified into conventional oil lubrication plug valve and pressure balance plug valve. Tailor-made grease is injected between body and plug from top of plug, forming oil film to reduce torque of valve, highly improving sealing and service life.  ...

  • Characteristics and Advantages of Three-way Ball Valve
    Posted: 09/23/2016 16:07:21 Hits: 12

    Three-way ball valve utilizes ball as its closure member. The ball rotates with center line of body to open or close valve.   Characteristics of three-way ball valve 1. Open or close without friction The structure does not have the disadvantages that sealing faces of conventional valve ...

  • Applicable Working Conditions of Butterfly Valves
    Posted: 09/23/2016 16:07:21 Hits: 4

    The disc or butterfly plate of butterfly valves rotates shaft roundly to open or close. Butterfly valves are mainly used for cutting-off or throttling in pipes. Butterfly valves are suitable for pipelines of engineering systems to transmit corrosive or non-corrosive fluid media, including coal gas...

  • Use Thermal Infrared Imager to Detect Valve Leakage
    Posted: 09/23/2016 16:07:21 Hits: 3

    Statistics show that leakage exists in about 20% of valves in industrial equipment. Caused direct economic loss accounts for about 50% of total losses. Meanwhile, valve leakage also causes pollution to environment. Use thermal infrared imager to detect valve leakage in case of industrial accident. ...