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  • Reasons Cause Leakage of Metal Seal Butterfly Valve
    Posted: 09/23/2016 16:07:21 Hits: 6

    Low temperature devices are constantly developed in China. The demands for low temperature valves are also gradually growing. To meet the demands of market economy developing, the structure of metal seal butterfly valve is improved. A three eccentric pure metal seal butterfly valve having high perfo...

  • Requirements for Assembling Technologies of Valves
    Posted: 09/23/2016 16:07:21 Hits: 4

    Valves are a kind of hardware products in common use. There are definite requirements for valves before or during assembling. Otherwise, valves having been assembled cannot show their excellent properties.    Requirements for valves before assembling: 1. According processing requir...

  • Repair after Core Falling off
    Posted: 09/23/2016 16:07:21 Hits: 3

    For rising stem wedge gate valve, connection between stem and core loses efficacy which caused by corrosion, abrasion or improper operation during valve on-off, then, the core falls off. If the valve cannot be opened after being closed, the valve only can be cut out from the system and replaced. I...

  • Low Temperature Ball Valve is Popular for LNG
    Posted: 09/23/2016 16:07:21 Hits: 4

    In recent years, for global gas industry highly developing, LNG has already become an important part of international gas trade. By 2020, LNG will account for 40% of gas trade volume and 15% of gas consumption. Gas liquefying plant should be equipped with low temperature ball valve. So, the valve ...

  • Regulating Valve Installation and Application
    Posted: 09/23/2016 16:07:21 Hits: 4

    As one of terminal control components for automatic control system, regulating is a key component for automatic control system.   Generally, regualting valve is positively used (installed), for it having simple flow path and small resistance . However,  unger high pressure,  rev...

  • Stainless Butterfly Valve Introduction
    Posted: 09/23/2016 16:07:21 Hits: 4

    Based on structure, stainless steel butterfly valve can be classified into offset plate butterfly valve, vertical plate butterfly valve, cantboard butterfly valve, lever butterfly valve. Based on seal, stainless steel butterfly valve is classified into soft seal butterfly valve and hard seal butte...

  • 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 ...