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  • Posted: 06/08/2016 05:06:57   Hits: 57
    To build integrity management, fair and competitive market environment, strengthen the construction of quality and integrity system, ensure the valve product quality, safeguard the legitimate rig...
  • Posted: 06/08/2016 04:06:31   Hits: 73
    Following are the design, manufacture and inspection standards of our company.    Check Valve: API 6D 24th Specification for Pipeline and Piping valves  BS 1868-1975(R1990) Spec...
  • Posted: 05/16/2016 04:05:30   Hits: 129
    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...
  • Posted: 05/09/2016 05:05:05   Hits: 128
    The followings are the reasons causing defects on castings of valve.   1. Pore Pores are formed by gas which cannot escape and remained in metal. The internal wall of pore is smooth and c...
  • Posted: 04/18/2016 05:04:19   Hits: 182
    When use pipeline to transmit liquid or gas, the cost is only 1/3 of railway transportation and 2/3 of marine transportation. So, pipeline has already been highly developed for 100 years. The valves...
  • Posted: 04/13/2016 02:04:38   Hits: 199
    Before using sliver brazing to install valve, analyze the application to determine which valve is the most suitable for installation and keep in mind the service for which the valve is recommended. ...
  • Posted: 03/12/2016 04:03:31   Hits: 250
    Electrochemistry corrodes metals in different forms. It does not only function between two kinds of metals, but also can cause potential difference due to differential solubility of solution, differ...
  • Posted: 03/04/2016 04:03:56   Hits: 216
    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 valv...
  • Posted: 01/18/2016 05:01:09   Hits: 393
    Corrosion on valve body is considered that the metal materials are destructed under the environment of chemical or electrochemical environment. The corrosion is caused by spontaneous interaction bet...
  • Posted: 01/05/2016 04:01:19   Hits: 391
    Intelligent pneumatic ball valve is driven by pneumatic actuator, having realized completed intelligent control.   For its own advantages, intelligent pneumatic ball valve has been applied ...
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News & Events
2017.07.19
2017 China (Zhengzhou) International Water Equipment and Technology Exposition
Event: 2017 China (Zhengzhou) International Water Equipment and Technology Exposition Venue: Central China International Expo Center (No.210, Zheng Bian Road, Zhengzhou City, Henan Province) Date: 201...
2017.07.10
Comparisons of Pneumatic Ball Valves and Electric Ball Valves
(1) Pneumatic ball valves The pneumatic ball valve consists of the ball valve and the pneumatic actuator. It generally needs to be used in conjunction with accessories including the magnetic valve, ai...
2016.08.16
Usage of Valve Standards in China
Valve products have been widely applied in petroleum, chemical engineering, nuclear power, metallurgy, electric power, hydraulic power, large coal chemical industry and other industries. Total quantit...
2016.08.04
Innovation, the Future Trend for Pneumatic Control Valve
Pneumatic control valve plays a vital role in automatic control system of modern factory. The competition is quite intense in pneumatic valve industry in China. The future development trend of pneumat...